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  Mains monitoring relay  (39,119 offers of 6,262,423 product items)

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Theben Analogue DIN Rail Time Switch 110 → 230 V ac, 1-Channel / 2017949 (1 offer) 
The Theben LUNA 110 plus EL digital, DIN rail, time and light control twilight switch or light controller. It comes with an external light sensor with adjustable on and off switching delay. It also...
Theben
LUNA 110 plus AL
£ 160.403*
per piece
 
 piece
Tele Phase Monitoring Relay, 1, 3 Phase, SPDT, DIN Rail / 1239724 (1 offer) 
VEO Series Voltage Monitoring Relay. TELE VEO series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The VEO series have a self-extinguishing plastic bod...
Tele
V2PM400Y/230VS10
£ 128.39*
per piece
 
 piece
Theben Digital DIN Rail Time Switch 110 → 230 V ac, 1-Channel / 1806211 (1 offer) 
Theben Time SwitchThe Theben time switch is a single channel DIN rail single pole double through(SPDT) device. It is rated as 110Vac to 230Vac voltage supply and 50Hz to 60Hz frequency. This digita...
Theben
TR611 RC TOP 3
£ 146.901*
per piece
 
 piece
Tele Phase, Voltage Monitoring Relay, 1, 3 Phase, DPDT, Maximum of 400 V, DIN Rail / 1239733 (1 offer) 
KAPPA Series Voltage Monitoring Relay. TELE KAPPA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The KAPPA series have a self-extinguishing plast...
Tele
K3YM400VSY20
£ 186.51*
per piece
 
 piece
Theben Digital DIN Rail Time Switch 230 V ac, 1-Channel / 1717635 (1 offer) 
Theben Time SwitchThe Theben digital time switch is a single channel, DIN rail, single pole double throw (SPDT) device. It is an astronomical time switch with the daily program and 56 memory locati...
Theben
TR610 top3
£ 99.502*
per piece
 
 piece
Tele Phase, Voltage Monitoring Relay, 3 Phase, DPDT, Maximum of 230 V, DIN Rail / 1239752 (1 offer) 
GAMMA Series Voltage Monitoring Relay. TELE GAMMA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The GAMMA series have a self-extinguishing plast...
Tele
G2PM230VSY20 24-240V AC/DC
£ 215.606*
per piece
 
 piece
Unipower 40 A Motor Load Monitor, 100 → 400 V ac / 7458030 (2 offers) 
CE, UL and GOST-R. HPL500 Digital Motor Load Monitor. The HPL500 replaces the HPL420 and also incorporates many new features, however it has been designed so that users of the HPL420 will be famili...
Unipower
HPL500
£ 621.518*
per piece
 
 piece
Vega VEGAMET 862 Series Level Controller - Wall Mount, 100 → 230 V 2 Voltage Input Analogue and Relay / 2067062 (1 offer) 
The Vegas VEGAMET 862 controller feed the connected 4 to 20 mA or HART sensor, process the measured value and display them. A large display for data visualisation is integrated in the housing desig...
Vega
MET862.XXX1C
£ 758.00*
per piece
 
 piece
Tele Soft Starter, 18.5 kW, 400 V ac, 3 Phase, IP40 / 1239760 (1 offer) 
MS3 3 Phase Soft Starter. MS3 series electronic soft starters for squirrel cage motors are versatile and compact in a robust built housing. Integrated by pass and current measurement you save wirin...
Tele
MS3 18,5kW
£ 510.328*
per piece
 
 piece
Vishay Solid State Relay, 150 mA Load, Surface Mount, 350 V Load / 2576842 (2 offers) 
Maximum Load Current = 150 mA Mounting Type = Surface Mount Maximum Load Voltage = 350 V Contact Configuration = SPDT, SPST Output Device = MOSFET
Vishay
LH1502BAC
£ 3.25*
per piece
 
 pieces
Tele Temperature Monitoring Relay, 1 Phase, DPDT, DIN Rail / 1239744 (1 offer) 
GAMMA Series Temperature Monitoring Relay. TELE GAMMA series temperature monitoring relay of the motor winding with fault latch for temperature sensors. Featuring short circuit monitoring of the th...
Tele
G2TFKN02 24-240VAC/DC
£ 188.532*
per piece
 
 piece
Tele Voltage Monitoring Relay, 1 Phase, SPDT, Maximum of 230 V ac/dc, Maximum of 24V dc, DIN Rail / 1239722 (1 offer) 
VEO Series Voltage Monitoring Relay. TELE VEO series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The VEO series have a self-extinguishing plastic bod...
Tele
V2UM230V10
£ 108.084*
per piece
 
 piece
Vishay VOR1121B6 Series Solid State Relay, 370 mA Load, Surface Mount, 250 V ac/dc Load / 2444877 (2 offers) 
Maximum Load Current = 370 mA Mounting Type = Surface Mount Maximum Load Voltage = 250 V ac/dc Switching Type = Clean bounce free switching Minimum Load Current = 200 mA Contact Configuration = SPS...
Vishay
VOR1121B6
£ 1.28*
per piece
 
 pieces
Tempatron PCB Mount Timer Relay, 10 → 30V dc, 0.5 → 20s, 1-Function / 349771 (1 offer) 
Requires a 500K linear potentiometer. Time Delay Modules - External Control, On Delay. Function- 111 Encapsulated solid state timers Reset by removing the power supply Reset time 50 ms Output sink ...
Tempatron
MDE20SRP30VDC
£ 55.976*
per piece
 
 piece
Vishay, K3023PG Phototriac Output Optocoupler, Through Hole, 6-Pin DIP / 2444706 (1 offer) 
Optocoupler, Phototriac Output, Vishay Semiconductor. Vishay optocoupler with a photo triac output VOM160, VOM3052, VOM3053 and BRT21 series Isolate low-voltage logic from 120Vac, 240Vac, and 380Va...
Vishay
K3023PG
£ 0.421*
per piece
 
 pieces
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