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  Monitoring relays  (1,030 offers of 5,351,726 product items)

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Fluke Three Phase Power Measurement Logger (1 offer) 
The Fluke 1732 and 1734 Three Phase Electrical Energy loggers deliver easy to use three phase power measurement data for discovering sources of electrical energy waste, overloaded circuits and help...
Fluke
4706566
£ 2,783.88*
per piece
 
 piece
Fluke Three Phase Power Measurement Logger (1 offer) 
The Fluke 1732 and 1734 Three Phase Electrical Energy loggers deliver easy to use three phase power measurement data for discovering sources of electrical energy waste, overloaded circuits and help...
Fluke
4706582
£ 3,171.96*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; DPDT (1 offer) 
Manufacturer: ABB Mounting: for DIN rail mounting Operating temperature: -25...60°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body dimens...
ABB
CM-MPS.43S
from £ 109.18*
per piece
 
 piece
GIC Thermistor Motor Protection Monitoring Relay, 3 Phase, SPDT, DIN Rail / 7943963 (2 offers) 
GIC Combined Phase Failure ; Thermistor PTC Relay. Professional thermistor relay with protection againt phase sequence, phase loss and phase asymmetry faults. Monitors and protects motors with inte...
GIC
MLD4BS
from £ 49.57*
per piece
 
 piece
Dold Voltage Monitoring Relay, DPDT, DIN Rail / 4459052 (1 offer) 
Complies with IEC 255, EN 61557 and VDE 0413. Insulation monitor for DC networks IL 5881. For DC networks; large voltage range in network to be monitored 12 Vdc → 280 Vdc Alarm value adjustable for...
DOLD
IL5881.12/100 DC12-280V 5-200kOHM
£ 224.028*
per piece
 
 piece
Fluke Three Phase Power Measurement Logger (1 offer) 
The Fluke 1732 and 1734 Three Phase Electrical Energy loggers deliver easy to use three phase power measurement data for discovering sources of electrical energy waste, overloaded circuits and help...
Fluke
4706594
£ 3,482.82*
per piece
 
 piece
GIC Thermistor Motor Protection Monitoring Relay, 1 Phase, DPDT, 110 → 240V ac, DIN Rail / 7943957 (2 offers) 
GIC PTC Thermistor Relay Series PD225. Professional thermistor relay containing protection againt Phase sequence fault. Monitors and protects motors with integrated PTC resistor sensors Protection ...
GIC
MJ83BK
from £ 51.08*
per piece
 
 piece
GIC Voltage Monitoring Relay, 3 Phase, SPDT, 208 → 480V ac, DIN Rail / 7943941 (1 offer) 
GIC Supply Monitoring SM Range. GIC's profesional range of single and three phase supply monitors that are feature rich for industrial and agricultural use. The range covers phase loss/phase revers...
GIC
MG21DH
from £ 39.274*
per piece
 
 piece
GIC Phase, Voltage Monitoring Relay, 3 Phase, DPDT / 8842473 (1 offer) 
GIC Phase Failure ; Neutral Loss Detection Monitoring Relays. Supply monitoring relays with combined phase failure and neutral loss detection. Phase loss failure detection Neutral loss detection Ph...
GIC
MAC04D0100
from £ 45.224*
per piece
 
 piece
GIC Frequency Monitoring Relay, 2 Phase, SPDT, 220 → 440V ac, DIN Rail / 7943954 (1 offer) 
GIC Frequency Monitoring Series PD225. Professional range of frequency monitoring relays for industrial and agricultural needs. Wide auxiliary supply voltage 110 to 240 vac or 220 to 440 vac Over f...
GIC
MI91BL
from £ 42.48*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; IP30 (1 offer) 
Manufacturer: SCHNEIDER ELECTRIC Mounting: for DIN rail mounting Operating temperature: -20...50°C Kind of output 1: relay NO / NC Power supply: from tested wiring system IP rating: IP30 Leads: scr...
Schneider Electric
RM17TA00
from £ 57.09*
per piece
 
 piece
GIC Voltage Monitoring Relay, 1, 3 Phase, DPDT, DIN Rail / 7943948 (1 offer) 
GIC Supply Monitoring SM Range. GIC's profesional range of single and three phase supply monitors that are feature rich for industrial and agricultural use. The range covers phase loss/phase revers...
GIC
MG73BH
from £ 44.61*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; DPDT (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Max. ope...
POLLIN
SZR-2
from £ 107.10*
per piece
 
 piece
Hiquel Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 9144639 (1 offer) 
ICC Series Current Control Monitor. Hiquel ICC series monitors a single phase current signal. It is suitable for use with alternate and direct currents. Three different current ranges available to ...
Hiquel
ICC 230Vac
£ 123.85*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; IP20 (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Output voltage: 230/230/400V AC Ma...
F&F
PF-452
from £ 77.86*
per piece
 
 piece
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