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PRODUCT CATALOG2018Indication Warning & Control ApplicationsESP TECHNOLOGIES LTD.138/79, Moo 2 Tambon Ban Klang,Amphoe Mueang Pathumthani,Pathumthani Province 12000,Thailand.Tel: 66 21475048-9 Fax : 66 25927919www.esptechno.com
Indication Warning & Control ApplicationsIndexWITCHESINDICATIONSHigh Brightness LED Bulb (NLB)Semaphore Indicator (NSI)Pilot Light (NPL)Line Lamp (NLL)Miniature Buzzer (NBZ)Page No.01-0304-0607-0910-1112-13SWITCHESPush Button Switch (NPB)Selector Switch (NSS)Limit Switch (NLS)Cam Switch (NCS)Discrepancy Switch (NDCS)Page No.14-1516-1718-2021-2930-33HEATER & HEATER CONTROLLERThermostat (NTH)Thermostat (NTH02)Hygrostat (NMH)Space Heater (NSH01)Space Heater (NSH02)Page No.34-3536-3738- 394041-45RelayPower Relay (NP403)Timer Relay (H3CR)Timer Switch (NTS)Page No.46-4849-5051-52LIGHTING LUMINAIREService Lamp (NSL -OL / NSL-LO)Integrated Tube (NIT8)Page No.53-5455-56METER & ACCESSORIESAnalogue Panel Meter (NAPM)Digital Multifunction Meter (NDMM)Current Transformer (NCT)DC Shunt (NDS)Page No.57-6566-6869-7273-74OTHERUniversal Outlet (NUO)Electro Magnetic Counter (NEC)Fuse Disconnector (NFD)Page No.75-7677-7879-80
HIGH BRIGHTNESS LED BULB (NLB)DescriptionThe BA9S and E10 are standard socket of LED bulb, with diameter approx. 9-10mm. multi-chip and latesttechnology assures bright intensity, shock resistance and long life operation. Meanwhile E12 and E14 (diameter -INDICATIONS12mm. and 14mm.) could be done upon customer requested.Features Low power consumption Lifetime : more than 30,000 hours Ambient Temperature : -5 C 50 C Insulation : 100 MΩ at DC 500V Selectable input voltage from 24, 48, 70, 110, 125 VAC/DC Operating current less than 10mADimensionESP TECHNOLOGIES LTD01
HIGH BRIGHTNESS LED BULB (NLB)Rated voltageAC-DC 24VAC-DC 48VAC-DC 70VAC-DC 110VAC-DC 125VAC-DC 220VEmitting colorWhiteSky BlueGreenYellowAmberRedWhiteSky blueGreenYellowAmberRedWhiteSky blueGreenYellowAmberRedWhiteSky blueGreenYellowAmberRedWhiteSky blueGreenYellowAmberRedWhiteSky blueGreenYellowAmberRedOperatingcurrent 3.03.03.03.0*Other base bulb and voltage rating can be supplied upon request.Wave 459466523596613633Luminousintensity 065504550505065504550505065ESP TECHNOLOGIES LTDINDICATIONSSpecification02
HIGH BRIGHTNESS LED BULB (NLB)Product CodingNLB-BA9S – R 13 – 10LED Diameter1010mm.E10Screw-in base 10mm.1414mm.E12Screw-in base 12mm.2020mm.E14Screw-in base 14mm.Emitting colorWWhiteRate voltage of lamp2424 VAC/DCSSky blueGGreen4848 VAC/DCYYellow7070 VAC/DCAAmber11110 VAC/DCRRed13125 VAC/DC22220 VAC/DCESP TECHNOLOGIES LTDINDICATIONSSocket typeBA9S Bayonet base 9mm.03
SEMAPHORE INDICATOR tStatusX0-X2RedDraw OutServiceGreenTestRedGrounding or EarthCloseGreenOpenRedOperationINDICATIONSLED semaphore indicator is used as a states indicator of the circuit breaker, disconnector or earthingswitch. The indicator is mounted on the panel with mounting hole diameter 22.3 mm. and operated by two color LED.The two colors are red and green, detail description is as below:CloseGreenOpenSpecificationTypeInsulation withstand voltageNSI2210MΩ at DC 500V, AC 1,500V/minElectrical life timeAbove 50,000 hrs.Operating current4-6 mAPower consumptions0.12W (24Vdc), 0.24W (48Vdc), 0.55W (110Vdc),0.625W (125Vdc),1.10W (220Vdc)Ambient temp.-5ºC 55ºCStorage temp.-20ºC 70ºCAmbient humidityHead protection class (front plate)45 85%IP40Cut out22.3 mmWeight30g.ESP TECHNOLOGIES LTD04
SEMAPHORE INDICATOR (NSI)DimensionINDICATIONSNSI22W (White plate)NSI22B (Black plate)ESP TECHNOLOGIES LTD05
SEMAPHORE INDICATOR (NSI)Product CodingNSI22 W E 13Basic typeRated voltage*24AC-DC 24VSurface colorWWhite plateBBlack plate48AC-DC 48V11AC-DC 110V13AC-DC 125V22AC-DC 220V*Other rating can be supplied upon requestWorking statusDDraw out status of breakerGrounding or earth of DSOOperation status of breaker or DSINDICATIONSEWiring DiagramESP TECHNOLOGIES LTD06
PILOT LIGHT (NPL)- Removable LED (BA9S) type:- Fixed LED type:INDICATIONS- Fixed LED type:DescriptionPilot lights are panel mounted lamp assemblies consisting of the indicator housing, an internal LED lamp,terminal, and a lens. Applications include industrial control panels of all types, equipment indicator panels, statusindicators and display lighting. The light source is high brightness pure color LED.Removable LED (BA9S) type: Dome lens (cut out size 22mm.): Flat lens (cut out size 22mm.)Fix LED type: Flat lens (cut out size 30mm.): Flat lens (cut out size 22mm.): Flat lens (cut out type 16mm.)Features Unique Lens & bulb uniform body assures bright intensity, shock resistance, and oil tight construction. Full voltage up to 380VAC 50/60 Hz without bulky transformer High brightness LED chip technology with built in current-limiting resistor and zener diode Other voltage rating can be done upon request.ESP TECHNOLOGIES LTD07
PILOT LIGHT (NPL)SpecificationConform to standards IEC 60073 (Lamp colors) and IEC 60547TypeNPL (LED)Voltage220 VAC/DC, 125 VAC/DC110 VAC/DC, 48 VAC/DC24 VAC/DC, 12 VAC/DCCurrentless than 10mAInsulation100 MΩ at DC 500VAmbient temp.-5 C 55 CStorage temp.-20 C 70 CElectrical life timeAbove 30,000 hrs.Head protection classIP40INDICATIONSDimensionLED (BA9S) removable typeFix LED typeRatio 1:1 mmESP TECHNOLOGIES LTD08
PILOT LIGHT (NPL)Product CodingNPL22 – R13 – LDBasic typeLens typeD*CutoutNone16 mm. (Fix LED type)2222 mm.3030 mm. (Fix LED type)Flat type*For removable LED typeBulb typeLens ColorLLED (BA9S), removableFFix LEDRRedGGreenY*Yellow24AC–DC 24VWWhite48AC–DC 48VSSky blue11AC–DC 110VOOrange13AC–DC 125V*For removable LED type22AC–DC 220V38**AC–DC 380VRate voltage of lamp**For Fix LED type onlyESP TECHNOLOGIES LTDINDICATIONS16Dome type09
LINE LAMP (NLL)DescriptionNLL series line lamps or status lamps are panel mounted assemblies which are consisting of theindicator housing, an internal LED lamp, terminals (at the rear side), and lens. Applications include industrial controlpanels of all types, equipment indicating panels, status indicators and display lighting. The light source is from highFeatures Robust , compact and luxurious design Selectable lens shape either square (30 x 30 mm.) or rectangular shape (30 x 60 mm.).INDICATIONSbrightness pure color LED. High brightness LED chip technology with built in current limiting resistor and zener diode. Various choices of LED illuminating colors such as white, red, green, yellow, amber and sky blue Various input voltages (both AC & DC) for LED indicatorSpecificationInput voltage for LED lampAllowable voltage fluctuationAC rated frequencyLED illuminating colorLED base typeLED power consumptionInsulation resistanceWithstand voltageAmbient temperatureRelative humidityFront protection classRecommended wire size24, 48, 110, 125 and 220 Vac/Vdc 10%50/60 HzWhite, Red, Green, Yellow, Amber and Sky blueE10Below 20 mA. 100 MΩ (DC 500 V. Meg)AC 2,500 V/1 min.-5 C to 55 C45 – 85 %IP40 (Front panel)1.0 – 2.5 mm2ESP TECHNOLOGIES LTD10
LINE LAMP (NLL)DimensionSquare lensINDICATIONSRectangular lensProduct CodingBasic typeNLL – 3 R – L 24Dimension3Rectangular lens (30 x 30 mm.)6Rectangular lens (30 x 60 mm.)Colors of LED lampWWhiteRRedGGreenYYellowAAmberSSky blueInput voltage for LED lamp2424V AC/DC4848V AC/DC11110V AC/DC13125V AC/DC22220V AC/DCLED lamp with E10 base typeRemark: 2 mounting brackets will be provided with each NLL.ESP TECHNOLOGIES LTD11
MINIATURE BUZZER (NBZ)The miniature buzzer is used for general purpose alarm and warning applications. Usually it is used in cubicle orcontrol boxes for wide application such as power distribution boards, LV. switchgear, MV. switchgear, Panelboards/Switchboards as well as in controller box of production machine and so on.FeaturesINDICATIONSDescription Small size/light weight and 5 cm. depth in panel. 22 mm. buzzer is intermittent sounding and flashing. Sound volume is 80 dB. at 10 cm. Both AC and DC type can be supplied with wide range of voltage. Ambient temperature -5 C to 55 C Head protection class : IP20 Weight 22gESP TECHNOLOGIES LTD12
MINIATURE BUZZER (NBZ)Ratio 1:1 mmProduct CodingINDICATIONSDimensionNBZ – 130Basic typeRated voltage02424V AC/DC04848V AC/DC110110V AC/DC130125V AC/DC220220V AC/DCESP TECHNOLOGIES LTD13
PUSH BUTTON SWITCH (NPB)(cut out Size 30mm.)(cut out Size 22mm.)Specification10M at DC 500V AC 1,500V/min.Mechanical life time3 x 106Electrical life time12 x 105Ambient temperature-5 C 55 CStorage temperature-20 C 70 CAmbient humidity45 85%Head protection classIP54Cut out22.3 mm. / 30.3mm.SWITCHESInsulation withstand voltageCut Out DimensionESP TECHNOLOGIES LTD14
PUSH BUTTON SWITCH (NPB)Product CodingNPB22 – R13 – A11Basic typeNumber of contacts11 1NO/1NCCutout2222 mm.202NO3030 mm.022NC222NO/2NCButton colorRRedBBlackGGreenYYellowWWhiteMMomentarySSky blueTTurn to releaseRated voltage (with lamp)NoneWithout lampButton typeFL Flat24AC-DC 24VEM48AC-DC 48V11AC-DC 110V13AC-DC 125V22AC-DC 220VEmergency*SWITCHESFunction operateA Alternate*Note:Emergency push button has red color only. The emergency stop push button comply with IEC 60204, IEC 60947 and EC 60073.They are designed with a positive mechanical movement sequence. The push button latches when pressed and is reset by turning it in aclockwise direction.ESP TECHNOLOGIES LTD15
SELECTOR SWITCH (NSS)Specification10MΩ at DC 500V AC 1,500V/min.Mechanical life time3 x 105Electrical life time12 x 105Ambient temperature-5 C 55 CStorage temperature-20 C 70 CAmbient humidity45 85%Head protection classIP54Cut out22.3 mm.SWITCHESInsulation withstand voltageCut out dimensionRatio 1:1 mm.ESP TECHNOLOGIES LTD16
SELECTOR SWITCH (NSS)Short handleLong handleRatio 1:1 mm.NSS22 – 2 L – 11Basic typeNumber of contacts111NO/1NCWorking step22 Steps33 Steps202NO022NC222NO/2NCSWITCHESProduct CodingHandle typeLLongSShortESP TECHNOLOGIES LTD17
LIMIT SWITCH (NLS)Mechanical : 240 ops/minElectrical : 20 ops/minOperating FrequencyMechanically : 1.0x106 (operations)Electrically : 5x106 (operations)Service LifeRated Voltage/Current15A at 250VACRated Insulation Voltage600VACOperating Temperature-20 to 80ºC (-4 to 176ºF)Dielectric StrengthSWITCHESSpecification2500VAC 50/60Hz (For 1 min)Degree of ProtectionIP63DimensionNLS – DSRatio 1:1 mm.ESP TECHNOLOGIES LTD18
LIMIT SWITCH (NLS)DimensionSWITCHESNLZ – 15GQ – BNLZ – 15GW – BNLZ – 15GW2 – BRatio 1:1 mm.ESP TECHNOLOGIES LTD19
LIMIT SWITCH (NLS)DimensionNLZ – 15GW22 – BRatio 1:1 mm.OF Operating ForcePTPre travelRF Releasing ForceMDMovement DifferentialOT Over travelOPOperating FPmax--28.2mm32.9mm36.5mm21.8 1.2mm19.0 0.8mm19.0 0.8mm30.2 0.4mm30.2 0.8mmOPESP TECHNOLOGIES LTDSWITCHESDefinitions of Operating Characteristics20
CAM SWITCH (NCS)CAM SWITCHES series NCS have been developed to the latest achievements in the field of switchingdevices through the application of high quality insulation material and contacts made from silver alloys. Theiradvantages are high making and breaking capacities, electrical and mechanical endurance and small dimensions.The rotary cam switches are intended for multiple switching operations in main circuit as well as in auxiliary circuits.SWITCHESDescriptionNCS series rotary cam switches have five current ratings: 10A, 20A, 25A, 32A, and 63A. All ratings hasthe finger proof terminal. The series comply with IEC 60947-3, IEC 60947-5-1.NCS series mainly applies to 600Vac and below voltage (240Vac/50 Hz) as well as DC circuit. Typicalapplications are breaking and closing, change-over of circuit, selector switches (for example: Auto-Manual), controlswitch of switchgear / control gear and control switch of instruments.ApplicationThe NCS series cam switches can be used for virtually all purposes which classified by utilization as the following: Motor switches - these switches are designed for direct-online starting and stopping of single phase and threephase motors, which also come out as star-delta switches, reversing switches, pole-change over motorswitches. Selector switches and multi-step switches - e.g. Voltmeter selector switches, Ammeter selector switches andetc. for transformers and welding apparatuses. Cut-Off switches or ON-OFF switches in auxiliary circuits - these switches are assembled in compliance withthe switching programmer according to preference : switches for control, signaling and measuring circuits. Control switches with spring return - pull to operate and etc.ESP TECHNOLOGIES LTD21
CAM SWITCH (NCS)Cam switches can have up to 15 layers (30 contacts) in maximum. In principle all sizes and designs ofcam switches can be arranged with four different angles of rotation. Suitable to the application of stop mechanismwith 90 , 60 , 45 , 30 at uniform distribution of a full circle, maximum 4, 6, 8 or 12 switch positions are possible.The switches can be used at the ambient temperature from -5 C to 55 C and storage temperaturefrom -20 C to 70 CSpecificationConforming to the standards IEC 60947-3 and IEC 60947-5-1Front protection class : IP40, Live part: IP20Contact material : Ag Ni10 (90% silver 10% Nickel)NCS – 10NCS – 20NCS – 25NCS – 32NCS – 63Rated insulation voltage UiDescriptionV690690690690690Rated thermal current IthA1020253263AC – 21A, AC – 22A (240/440V)A10/1020/2025/2532/3263/63AC – 23A(240/440V)A7.5/7.515/1522/2230/3057/57AC – 2(240/440V)A7.5/7.515/1522/2230/3057/57AC – 3(240/440V)A5.5/5.511/1115/1522/2236/36AC – 4(240/440V)A1.75/1.753.5/3.56.5/6.511/1115/15AC – 15(240/440V)A2.5/2.55/48/514/628/12AC – 23A (380V-440V) / (220V-240V)kW3/1.87.5/3.711/5.515/7.530/10AC – 2(380V-440V) / (220V-240V)kW3.7/2.57.5/3.711/5.515/7.530/18.5AC – 3(380V-440V) / (220V-240V)kW2.2/1.55.5/37.5/3.711/5.518.5/6AC – 4(380V-440V) / 0.40.50.53.5SWITCHESRated operational current IePower ratingRated Impulse Withstand Voltage UimpDC Switching CapacityResistive loadsT 1 msInductive loadsT 50 msVoltageVoltageRemark : The power under AC-23A, AC-2, AC-3, AC-4 are in three phase/three pole and the divider representsthe power under single phase/two pole.Mechanical life without load : 10 x 104 times, operation frequency is 120 times/h.Mechanical life with load : 3 x 104 times, operation frequency is 120 times/h.ESP TECHNOLOGIES LTD22
CAM SWITCH (NCS)Square escutcheon plate plus rectangle plate is added for M1 and M2, shall be used for Model NCS20 and NCS25.For NCS32 and NCS63 should be M2, and M3 onlyNCS - 20NCS - 25NCS - 32NCS - 63NCS-25Installation (mm.)ABCLabd1d2M148484322 9.6n3636M1 with rectangle plate48604322 9.6n3636M264644325 9.6n4848 8.5 4.5M2 with rectangle plate64804325 9.6n4848M1484845.223 12.8n3636M1 with rectangle plate486045.223 12.8n3636 10 4.5M2M2 with rectangle plateM264646464806445.245.25826.5 12.8n26.5 12.8n26.5 12.8n484848484848M2 with rectangle plateM2M2 with rectangle plateM364646488806480885866666626.5 12.8n26.5 12.8n26.5 12.8n31 21.5n4848486848484868ModelNCS-20Dimension (mm.)Escutcheon plateEscutcheon plateDimension (mm.) 8.5 4.5 10 4.5 8.5 4.5 8.5 4.5 10 10 10 4.5 4.5 4.5 10 10 10 13SWITCHESModel 4.5 4.5 4.5 6.0Installation (mm.)ABCDEFabd1d2M148484340 9.6n401-43636M264644335 9.6n481-44848M2 with rectangle plate64804335 9.6n481-44848 24 4.5M1484845.223 12.8n401-43636M2646445.234.4 12.8n481-44848M2 with rectangle plate648045.234.4 12.8n481-44848 24 4.5Remark : n for number of layers 24 24 24 24 4.5 4.5 4.5 4.5ESP TECHNOLOGIES LTD23
CAM SWITCH (NCS)M2K for Model NCS20 and NCS25EscutcheonplateNCS-20NCS-25Dimension (mm.)ABInstallation (mm.)CDEFGaM1K48 85 254534 9.6n291-4M1K48 85 25 47.2 34 12.8n 291-436 36 41.5 10 4 20Remark: n for number of ion (mm.)ABbcd1d2d336 36 41.5 10 4 20Installation (mm.)CDEFGaM2K64 129 324534 9.6n291-4M2K64 129 32 47.2 34 12.8n 291-436 36 41.5 10 4 20Remark : n for number of layersType of handlebcd1d2d336 36 41.5 10 4 20Type BType FType IType LType OType PType RType SSWITCHESDescriptionRemark : Handle type S, L and O for escutcheon plate size M2 only and Key handle is available for size M1, M2 and M1K, M2KHandle type I is available for size MO, M1, M2 and M3Handle type P is available for size M2 and M3Escutcheon plate M0/M1/M2/M3M0M1M2M3ESP TECHNOLOGIES LTD24
CAM SWITCH (NCS)Operating Position Diagram of Limited Movement Type:6 stepSWITCHES4 step8 step12 stepOperating Position Diagram of Spring Return Type:L to RR to LL / R to CESP TECHNOLOGIES LTD25
CAM SWITCH (NCS)ApplicationAmmeter selector switchSizeM0 30x30mmM1 48x48mm / 48x64mm (with name plate)Rated currentVoltageWire sizeTerminal LugM2 64x64mm / 64x80mm (with name plate)10A / 20A / 25A / 32A / 63ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGFork terminalVoltmeter selector switchTerminal LugFork terminalSizeRated currentVoltageWire sizeM2 64x64mm / 64x80mm (with name plate)20A / 25A / 32ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalRated currentVoltageSWITCHESWire sizeM0 30x30mmM1 48x48mm / 48x64mm (with name plate)M2 64x64mm / 64x80mm (with name plate)10A / 20A / 25A / 32A / 63ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGSizeCircuit breaker control switchPull and turn / Push and turnCircuit breaker control switchPull to lockoutWire sizeM2 64x64mm / 64x80mm (with name plate)20A / 25A / 32ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeRated currentVoltageESP TECHNOLOGIES LTD26
CAM SWITCH (NCS)Changeover switchLimited movementSizeRated currentVoltageWire sizeTerminal LugM0 30x30mmM1 48x48mm / 48x64mm (with name plate)M2 64x64mm / 64x80mm (with name plate)M3 88x88mm10A / 20A / 25A / 32A / 63ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGFork terminalChangeover switch M2Type (O) handle for M2 onlyM2 64x64mm / 64x80mm (with name plate)Rated current20A / 25A / 32A / 63AVoltageWire sizeRated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeM2 64x64mm / 64x80mm (with name plate)Rated current20A / 25A / 32A / 63AVoltageWire sizeRated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeM1 48x48mm / 48x64mm (with name plate)M2 64x64mm / 64x80mm (with name plate)20A / 25A / 32A / 63ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGFork terminalSWITCHESSizeChangeover switch M2Type (S) handle for M2 onlyKey changeover switch M1, M2Lock and removableRated currentVoltageWire sizeTerminal LugESP TECHNOLOGIES LTD27
CAM SWITCH (NCS)Key changeover switch M2KLock and removableWire sizeM2K 48x85mm20A / 25A / 32ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeRated currentVoltageWire sizeM1 48x48mm / 48x64mm (with name plate)20A / 25A / 32ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeRated currentVoltageWire sizeSquare 48x48mm20A / 25A / 32ARated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSizeRated currentRound 52 mm20A / 25A / 32ASizeRated currentVoltagePadlock Changeover switchDiscrepancy control switchSWITCHESPush and turn / Push for padlockCircuit breaker typeDiscrepancy control switchDisconnector switch typeVoltageWire sizeRated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalESP TECHNOLOGIES LTD28
CAM SWITCH (NCS)Open close switchSpring return / Limited movementSizeRated currentWire sizeRated impulse withstand voltage : 6KVRated insulation voltage : 690VAC2 x 0.5 - 2.5 mm / 14 AWGTerminal LugFork terminalSWITCHESVoltageM0 30x30mmM1 48x48mm / 48x64mm (with name plate)M2 64x64mm / 64x80mm (with name plate)M3 88x88mm10A / 20A / 25A / 32A / 63AESP TECHNOLOGIES LTD29
DISCREPANCY SWITCH (NDCS)NDCS discrepancy switches are used to control & monitor the circuit breaker and disconnectingswitches. Also display their circuit state in mimic panels and illuminated mimic diagrams. When it lights up thatmeans the position of the discrepancy switch does not match with the pre-assigned circuit breaker. The luminoussource is from high brightness LED lamp with Yellow color.SWITCHESDescriptionFeatures Robust, durable, compact and luxurious design Provide both round and square installation flanges 2 point switching type (by pushing and turning to right or left side) High brightness LED chip technology with built in current limiting resistor and zener diode. Various input voltages (both AC & DC) for LED indicator Flash light could be supplied as an optionESP TECHNOLOGIES LTD30
DISCREPANCY SWITCH (NDCS)SpecificationConforming to standards IEC 60947-3 and IEC 60947-5-1DescriptionNDCS – 20NDCS – 25NDCS – 32Rated insulation voltage UiV690690690Rated thermal current IthA202532AC – 21A, AC – 22AA202532AC – 23AA152230AC – 2A152230AC – 3A111522AC – 4A3.56.511AC – 15 (220V-240V)A5814AC – 23A (380V-440V ) / (220V-240)kW7.5/3.711/5.515/7.5AC – 2(380V-440V ) / (220V-240)kW7.5/3.711/5.515/7.5AC – 3(380V-440V ) / (220V-240)kW5.5/37.5/3.711/5.5AC – 4(380V-440V ) / 60A11.51.5110A0.40.50.5220 (2 Contacts in series)A0.40.50.5Rated operational current IeRated Impulse Withstand Voltage UimpDC Switching CapacityResistive loadsT 1 msInductive loadsT 50 msSWITCHESPower ratingVoltageVoltageRemark : The power under AC-23A, AC-3, AC-4 are in three phase/three pole and the divider represents the power under singlephase/two pole.Mechanical life4Mechanical life without load : 60 x 10 times, operation frequency is 120 times/h.44Mechanical life with load : 20 x 10 times under AC-15. 6 x 10 times under DC-13, operation frequency is 300 times/hESP TECHNOLOGIES LTD31
DISCREPANCY SWITCH (NDCS)NDCS-20 / NDCS-25Rated insulation voltageAC rated frequencyRated thermal currentDC Switching capacity1 contact (T 1 ms ,T 50 ms) @110VDCInput voltages for LED lampMechanical durabilityElectrical durabilityAmbient temperatureStorage temperatureSwitching operationsConductor size690V50/60 Hz20A / 25A / 32A(1.0A / 0.4A) / (1.5A / 0.5A) / (2A / 0.5A)24, 48, 110, 125 and 220 V AC/DC ( 10%)100,000 operations up500,000 operations up-5 C to 55 C-20 C to 70 C2 point switching (by pushing and turning to right or left side)0.5 – 4 mm2.DimensionSWITCHES4 Layers (NDCS-4), 25A3 Layers (NDCS-3), 25ALockable handle/ bigger knobESP TECHNOLOGIES LTD32
DISCREPANCY SWITCH (NDCS)Wiring DiagramNDCS-4 LayerType ANDCS-4 LayerType BNDCS-5 LayerSWITCHESNDCS-3 LayerProduct CodingNDCS 20– 4 – 24 – S FBasic typeRating202532Number of layer33 Layer*44 Layer*55 Layer**One more layer for LED lamp will be added.Remark : Other number of layers canbe made upon request.20A25A32AInput voltage for LED lamp2424V AC/DC4848V AC/DC11110V AC/DC13125V AC/DC22120V AC/DCFlash light (option)N/ANormal LEDFFlash light LEDShape of flangeSSquareRRoundESP TECHNOLOGIES LTD33
DescriptionCapillary thermostats are designed for accurate and reliable temperature control for domestic appliances andindustrial equipments.thermostat (NTH type) is an economic and reliable instrument, widely used in relay& control panel, switchgear cubicle, main distribution board, control boxes, laboratory instrument and others. Whenit is in use, usually it should be combined with other products such as an electric fan or space heater.The assembly of the thermostats consisted by a capillary tube, sensing bulb and diaphragm (phial) filled withliquid (which sensitive to the ambient temperature) and fixed in the polycarbonate housing and switch base. A blackHEATER & HEATER CONTROLLERTHERMOSTAT (NTH)polycarbonate knob with white scale marking is provided to set the desired temperature. The complete set ofthermostat (NTH type) is rugged and modern design. The box of the thermostat is made of zinc-coatedsteel, painted with epoxy resin black color.This instrument keeps constant within the differential temperature. It is intended to use for preventing ofmoisture content which may be occurred in the switchboard, control panel, switchgear cubicle, small control boxesetc. The setting ranges are started from 0 C to 60 C (error: 2 5 C) with one change over contact (brakingcapacity: 16A at 220Vac 10%) for controlling or command purpose.ESP TECHNOLOGIES LTD34
THERMOSTAT (NTH)Specification0 - 60 CDifferential2 - 5 CContact resistance 50mΩDielectric strengthAC 2,000V/1minInsulation resistance 100MΩLife cycle 100,000 cyclesMax. switching capacity16A/220Vac 10%3A (24-125Vdc), 380WHead protection classIP40HEATER & HEATER CONTROLLERTemperature rangeS.P.D.T (change over contact)S.P.S.T (normally open contact)DimensionProduct codingNTH – 1C – SBasic typeContact type1C1CO1N1NOMounting typeSSurface mountedDDin-rail mountedESP TECHNOLOGIES LTD35
DescriptionElectronic thermostats are designed for accurate and reliable temperature control for domestic appliances andindustrial equipments.Electronic thermostat (NTH02) is an economic and reliable instrument, widely used inrelay & control panel, switchgear cubicle, main distribution board, control boxes, laboratory instruments and others.When it is in use, usually it should be combined with other products such as an electric fan or space heater.The complete set ofelectronic thermostat (NTH02) is rugged and modern design. The thermostat ismade of polycarbonate housing with a black polycarbonate knob, also marking scale is provided to set the desiredHEATER & HEATER CONTROLLERELECTRONIC THERMOSTAT (NTH02)temperature.This instrument keeps constant within the differential temperature. It is intended to use for preventing ofmoisture content which may be occurred in the switchboard, control panel, switchgear cubicle, small control boxesetc. The setting ranges are started from -20 C to 60 C (error: 2 5 C) with one change over contact (breakingcapacity : 16A at 220Vac 10%) for controlling or command purpose.ESP TECHNOLOGIES LTD36
ELECTRONIC THERMOSTAT (NTH02)Temperature range adj.-20 to 60 CDifferential2 - 5 CContact resistance 50mΩDielectric strengthAC 2,000V/1minInsulation resistance 100MΩLife cycle 100,000 cyclesMax. switching capacity16A/220Vac 10%3A (24-125Vdc), 380WMountingClip for 35mm. DIN rail, EN50022CasingPlastic according to UL94 V-O, light greyDegree of protectionIP20Dimension67 x 50 x 38 mm.WeightApprox. 60 g.Wiring DiagramESP TECHNOLOGIES LTDHEATER & HEATER CONTROLLERSpecification37
DescriptionThe electromechanical hygrostat NMH is designed to control enclosure humidity so that the dew point is raisedwhen the critical relative humidity of 65% is exceeded. In this way condensation and corrosion is effectivelyprevented. Application is for cabinets of electrical distribution, control panel, switchgear and control gear, cabinetsof industrial automation.Features Adjustable relative humidityHEATER & HEATER CONTROLLERHYGROSTAT (NMH) Change-over contact high switching capacity Easily accessible terminals Clip fixing for 35mm. Din rail Protection class IP20ESP TECHNOLOGIES LTD38
HYGROSTAT (NMH)SpecificationType modelNMHSwitch difference4% RH ( 3% tolerance)RH range35% - 95%Contact typechange – over contactContact resistance 10mΩService life 100,000 cyclesMax. switching capacity250VAC, 5ADC 20W (24 – 75VDC)Connectionclamping torque 0.5Nm max.: rigid wire 2.5mm2Stranded wire (with wire end ferrule) 1.5mm2MountingClip for 35mm DIN rail, EN50022CasingPlastic according to UL94 V-O, light greyDimension67 x 50 x 38 mm.WeightApprox. 60 g.Operating /Storage temperature0 to 60 C ( 32 to 140 F)/-20 to 80 C (-4 to 176 F)Protection classIP20Wiring DiagramESP TECHNOLOGIES LTDHEATER & HEATER CONTROLLER3-pole terminal for 2.5mm239
SPACE HEATER (NSH01)Descriptionswitchgear cubicle, main distribution board, control boxes etc. When it is in use, normally it should be combined withother products such as electric fan, thermostat or hygrostat.Heat element is a mica strip heater and the flat resistance ribbon generates heat over a broad area.Installation of the space heater should be at the bottom part of the cubicle or the lowest part of the control panel to getthe best result of the heater.The complete set ofspace heater is rugged and modern design to fulfill the function of heating. Thebody of the heater is made of zinc-coated steel and painted with epoxy black color.DimensionHEATER & HEATER CONTROLLERspace heater is an economical and reliable source of heat, widely used in the control panel,Note: Tolerance /- 2 mm.Product CodingNSH01 – 050Basic typePower consumption05050W 220Vac 10%06060W 220Vac 10%100100W 220Vac 10%*other rated can be supplied on request.ESP TECHNOLOGIES LTD40
DescriptionSpace heater is an economical and reliable source of heat, widely used in the control panel, switchgearcubicle, main distribution board, control boxes and etc. When it is in use, normally it should be combined with otherproducts such as electric
The light source is high brightness pure color LED. Removable LED (B A9S) t ype Fix LED type: Dome lens (c ut out size 22mm.): Flat lens (c ut out size 22mm.) . Storage temp. -20 C 70 C Electrical life time Above 30,000 hrs. Head protection class IP40 LED (B A9S) r emovable type Ratio 1:1 mm Dimension Specification 08
