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  Monitoring relays  (1,031 offers of 5,361,767 product items)

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Qoitech Otii Arc Pro DC Power Analyzer, 5A Max, 5V Max / 2564687 (1 offer) 
Absolute Maximum Current Measurement = 5A Maximum Voltage = 5V Best Voltage Measurement Accuracy = ±(0.1% + 1.5) mV Best Current Measurement Accuracy = ±(0.1% + 50) Measurement Type = Current, Powe...
Qoitech
OTII-ARC-PRO
from £ 739.73*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-BR-TRMS
from £ 20.23*
per piece
 
 piece
Omron Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 8193267 (3 offers) 
Omron K8AK-PW/PM/PH/PA Monitoring Relays. The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment. The K8AK-PW/PM ...
Omron
K8AKPM2380480VAC
from £ 90.83*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, DPDT, DIN Rail / 2033993 (2 offers) 
The Siemens digital monitoring relay used for current monitoring relay with digital setting. It has LCD display and spring type of terminal type. It using snap-on mounting type with any position. I...
Siemens
3UG4625-1CW30
from £ 126.20*
per piece
 
 piece
Relpol Phase, Voltage Monitoring Relay, 3 Phase, SPDT, Maximum of 552 V, DIN Rail / 9143957 (1 offer) 
Europa Components ECPF Series. Europa Components professional range of phase loss and phase failure monitoring relays.
Relpol
ECPF08
£ 32.512*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-316
from £ 17.35*
per piece
 
 piece
Relpol Phase, Voltage Monitoring Relay, 3 Phase, SPDT, Maximum of 552 V, DIN Rail / 9143945 (1 offer) 
Europa Components ECPF Series. Europa Components professional range of phase loss and phase failure monitoring relays.
Relpol
ECPF03
£ 22.87*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body di...
ELKO EP
HRN-55
from £ 22.05*
per piece
 
 piece
Omron Phase, Voltage Monitoring Relay, SPDT, 220 → 480V ac, DIN Rail / 2660103 (1 offer) 
Monitoring Application = Phase, Voltage Voltage Sensing Range = 220 → 480V ac Mounting Type = DIN Rail Frequency Sensing Range = 10 → 55Hz
Omron
K8AKPA2
£ 119.30*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: NOVATEK ELECTRO Mounting: for DIN rail mounting Operating temperature: -35...55°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: from tested wiring system IP rating: IP40...
NOVATEK ELECTRO
RNPP-312
from £ 29.78*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2131223 (1 offer) 
The Siemens 3RR2242-1FA30 is a Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.Cable...
Siemens
3RR2242-1FA30
£ 190.288*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-BS-TRMS
from £ 19.51*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: scre...
F&F
CZF-334-TRMS
from £ 43.54*
per piece
 
 piece
Rohde & Schwarz HMC8015 Power Quality Analyser, 20A Max, 600V Max / 1873722 (2 offers) 
Rohde & Schwarz HMC8015 Power Quality Analyser Rohde & Schwarz offer this large inclusion bundle of Power Quality Analyser, software upgrades and accessories. HMC8015 is the first compact tester fo...
Rohde + Schwarz
HMC8015COM
from £ 3,077.07*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-BT-TRMS
from £ 23.36*
per piece
 
 piece
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