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  Monitoring Relays (822 items)

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Tele Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail / 1829992 (1 offer) 
Voltage monitoring 3-phase against N, Voltage failure monitoring, 400V, 2 CO, fixed threshold voltage Us=195,5VMonitoring relays - ENYA series Undervoltage monitoring Supply voltage = measured volt...
Tele
E3YF400V02 0.85
from £ 86.804*
per piece
 
 piece
Tele Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 1829993 (1 offer) 
Voltage monitoring 3-phase against N, Voltage failure monitoring, 400V, 1 CO, fixed threshold voltage Us=195,5VMonitoring relays - ENYA series Undervoltage monitoring Supply voltage = measured volt...
Tele
E1YF400V01 0.85
from £ 92.575*
per piece
 
 piece
Tempatron Shaft Rotation Sensor Monitoring Relay, SPDT, Maximum of 30V dc, DIN Rail / 347696 (1 offer) 
Shaft Rotation SSR. Senses pulses from a proximity detector mounted near a machine shaft rotating at up to 10000rpm LED indication of relay status and supply DIN standard case, which may be front p...
Tempatron
FSRST30SLP110/240VAC
from £ 90.59*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 348150 (1 offer) 
Tachometer Relay. DIN standard case, which may be front panel or chassis mounted (11-pin socket 403-869). Monitors the speed of machinery via the inputs from RS inductive proximity switches, open c...
Tempatron
FSST
from £ 107.326*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763710 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-01-110/240VAC
from £ 117.632*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763726 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-02-110/240VAC
from £ 117.632*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763732 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-03-110/240VAC
from £ 117.632*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763748 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-01-24VAC/DC
from £ 117.632*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763754 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-02-24VAC/DC
from £ 117.632*
per piece
 
 piece
Tempatron Speed Monitoring Relay, SPDT, DIN Rail / 3763760 (1 offer) 
Tachometer Relay Series 2. Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed Response time of ;0.4...
Tempatron
TR4801-03-24VAC/DC
from £ 117.632*
per piece
 
 piece
ifm electronic Level Monitoring Relay, 1 Phase, SPDT / 2309390 (1 offer) 
Monitoring Application = Level Electrical Phase = 1 Contact Configuration = SPDT
ifm electronic
DL0201
£ 189.29*
per piece
 
 piece
ifm electronic Level Monitoring Relay, 1 Phase, SPDT / 2309391 (1 offer) 
Monitoring Application = Level Electrical Phase = 1 Contact Configuration = SPDT
ifm electronic
DL0203
£ 189.29*
per piece
 
 piece
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* Prices with asterisk are net prices excl. statutory VAT.
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