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  Monitoring relays  (523 offers of 2,613,187 product items)

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Current monitoring relay (2 offers) 
Current monitoring relay, Dimensions W x H x D: 22.5 x 90 x 100 mm, Operating temperature: -20...+60 °C, Start delay: 0.1...30 s, Current-measuring range: 2...500 mAAC/DC, Switching hysteresis: 5.....
Omron
K8AK-AS1 100-240VAC
from € 103.94*
per piece
 
 piece
Current monitoring relay (2 offers) 
Current monitoring relay, Dimensions W x H x D: 22.5 x 90 x 100 mm, Operating temperature: -20...+60 °C, Start delay: 0.1...30 s, Current-measuring range: 0.1...8 AAC/DC, Switching hysteresis: 5......
Omron
K8AK-AS2 100-240VAC
from € 104.07*
per piece
 
 piece
Phase monitoring relay (2 offers) 
Phase monitoring relay, Dimensions W x H x D: 17.5 x 90 x 65.5 mm, Operating temperature: -20...+50 °C, Voltage measurement range, AC: 183...528 V, Rated output: 22 VA, Tripping delay: max. 130 ms,...
Crouzet
MWS
from € 97.47*
per piece
 
 piece
Phase monitoring relay (2 offers) 
Phase monitoring relay, Dimensions W x H x D: 22.5 x 90 x 108 mm, Operating temperature: -25...+55 °C, Phase-asymmetric measurement range: Fixed, approx. 30%, Rated output: 250 VAC, 5 A, Start dela...
Tele
G2PF400VS02
from € 57.47*
per piece
 
 piece
Voltage monitoring relay (2 offers) 
Voltage monitoring relay, Dimensions W x H x D: 17.5 x 81.5 x 67.2 mm, Operating temperature: -20...+60 °C, Switching hysteresis: 4...50%, Switching threshold: 8...28 VDC, Voltage measurement range...
Carlo Gavazzi
DUA52C724
from € 66.19*
per piece
 
 piece
Voltage monitoring relay (3 offers) 
Voltage monitoring relay, Dimensions W x H x D: 17.5 x 90 x 69 mm, Frequency range: 45...66 Hz, Operating temperature: -20...+50 °C, Tripping delay: 0.1...10 s, Voltage measurement range, AC: 50......
Crouzet
MUS260
from € 105.33*
per piece
 
 piece
Voltage monitoring relay (2 offers) 
Voltage monitoring relay, Dimensions W x H x D: 22.5 x 90 x 100 mm, Operating temperature: -20...+60 °C, Start delay: 0.1...30 s, Switching hysteresis: 5% of the response value, Assembly type: DIN-...
Omron
K8AK-PW2
from € 99.51*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Voltage monitoring relay, Dimensions W x H x D: 22.5 x 90 x 103 mm, Frequency range: 16.6...400 Hz, Operating temperature: -25...+50 °C, Operating voltage type: Single phase, Protection rating: IP ...
Selectron
EMR DU22E
from € 218.96*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Voltage monitoring relay, Dimensions W x H x D: 38 x 51 x 67 mm, Operating temperature: -25...+55 °C, Voltage measurement range, AC: 172.5...299 V, Rated output: 250 VAC / 5 A, Tripping delay: No, ...
Selectron
EMR SU21N
from € 159.25*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Voltage monitoring relay, Dimensions W x H x D: 38 x 51 x 67 mm, Operating temperature: -25...+55 °C, Voltage measurement range, AC: 280...520 V, Rated output: 250 VAC / 5 A, Tripping delay: No, As...
Selectron
EMR SU31D
from € 147.02*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Voltage monitoring relay, Dimensions W x H x D: 38 x 51 x 67 mm, Operating temperature: -25...+55 °C, Start delay: 0.1...10 s, Tripping delay: 0.1...10 s, Voltage measurement range, DC: 9.0...15.6 ...
Selectron
EMR SU21I
from € 170.14*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Voltage monitoring relay, Dimensions W x H x D: 22.5 x 110 x 86 mm, Start delay: 0.1...20 s, Voltage measurement range, AC: 10...600 V, Switching hysteresis: 0.1...300 V, Assembly type: DIN-rail, O...
Siemens
3UG4632-1AW30
from € 149.31*
per piece
 
 piece
Monitoring relays speed 1 change-over (CO) (1 offer) 
Monitoring relays speed, Dimensions W x H x D: 40 x 93 x 115 mm, Operating temperature: -25...+60 °C, Rated output: 2 A @ 40 VDC/250 VAC, Rotational speed measurement range: max.10 kHz, Terminals: ...
Pepperl+Fuchs
KFU8-DW-1.D
from € 345.50*
per piece
 
 piece
Siemens
3UG4651-1AW30
from € 175.46*
per piece
 
 piece
Phase monitoring relay (1 offer) 
Phase monitoring relay, Dimensions W x H x D: 22.5 x 90 x 100 mm, Operating temperature: -20...+60 °C, Assembly type: DIN-rail, Output contact: 1 change-over (CO), Protection rating: IP 20, Operati...
Omron
K8AK-PH1
from € 56.37*
per piece
 
 piece
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