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  Monitoring Relays (817 items)

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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 £ 115.326*
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 £ 115.326*
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 £ 115.326*
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 £ 115.326*
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 £ 115.326*
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 £ 115.326*
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 £ 105.218*
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 £ 88.813*
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
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, 1 Phase, SPDT, Maximum of 24V ac/dc, DIN Rail / 7300499 (1 offer) 
ENYA Series Voltage Monitoring Relays. TELE ENYA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The ENYA series have a self-extinguishing plastic...
Tele
1340102 - E1UU230V01
from £ 61.48*
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
from £ 92.47*
per piece
 
 piece
Tele Voltage Monitoring Relay, 1 Phase, SPDT, 24 → 230V ac, DIN Rail / 1239716 (1 offer) 
ENYA Series Voltage Monitoring Relays. TELE ENYA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The ENYA series have a self-extinguishing plastic...
Tele
E1UM230V01
from £ 154.163*
per piece
 
 piece
Tele Voltage Monitoring Relay, 1 Phase, DPDT, 30 → 300V ac/dc, DIN Rail / 1239747 (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
G2UM300VL20 24-240VAC/DC
from £ 172.033*
per piece
 
 piece
Tele Temperature Monitoring Relay, SPDT, DIN Rail / 7300495 (1 offer) 
ENYA Series Temperature Monitoring Relay. TELE ENYA series temperature monitoring relay of the motor winding with fault latch for temperature sensors. Featuring short circuit monitoring of the ther...
Tele
1341600 - E3TF01 230V AC
from £ 71.112*
per piece
 
 piece
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* Prices with asterisk are net prices excl. statutory VAT.
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