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  Monitoring Relays (817 items)

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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 / 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 / 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 / 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 / 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
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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