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  Monitoring relays  (1,017 offers of 5,358,171 product items)

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ABB CM-ESS.1S electrical relay (2 offers) 
The CM-ESS.1S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a...
ABB
1SVR730831R1300
from £ 79.78*
per piece
 
 piece
ABB Voltage Monitoring Relay, 3PDT / 2319530 (1 offer) 
Monitoring Application = Voltage Contact Configuration = 3PDT Series = CM-UFD
ABB
1SVR560731R3702 CM-UFD.M33M
£ 742.70*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 8577527 (2 offers) 
DIB01/PIB01 Series Over/Under Current Relay. Carlo Gavazzi DIB01 and PIB01 series are precise TRMS AC/DC over or under current monitoring relays. The DIB and PIB ranges allow direct measuring or th...
Carlo Gavazzi
DIB01CB23500MA
from £ 107.78*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT / 2565068 (3 offers) 
Carlo Gavazzi Relay Accessories. Accessories designed for use with Various Carlo Gavazzi relay series such as Octal bases for DIN mounting
Carlo Gavazzi
PIA01CB235A
from £ 79.59*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 2010819 (2 offers) 
The Carlo Gavazzi DIA01 precise AC/DC over current monitoring relay owing to the built-in latch function, the ON-position of the relay output can be maintained.Current measured through internal shu...
Carlo Gavazzi
DIA01CB235A
from £ 79.10*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, Maximum of 4 V ac, 150 mV ac/dc, Plug In / 8577185 (2 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
PIB02CB23150MV
from £ 85.70*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPST, DIN Rail / 8577072 (2 offers) 
Carlo Gavazzi Over Current Monitor. Small current monitoring relay combined with built-in current transformer with a solid state output. Easily installed via a 2 wire connection. 12mm hole allows f...
Carlo Gavazzi
DIA53S72450A
from £ 42.60*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 8577703 (3 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
DIB01CM24100A
from £ 121.30*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, Maximum of 4 V ac, 150 mV ac/dc, DIN Rail / 8577189 (2 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
DIB02CB23150MV
from £ 114.22*
per piece
 
 piece
Carlo Gavazzi Phase Monitoring Relay, 3 Phase, SPDT / 2565061 (3 offers) 
Monitoring Application = Phase Electrical Phase = 3 Contact Configuration = SPDT Voltage Sensitivity = Phase Loss, Phase Rotation
Carlo Gavazzi
DPA01DM48
from £ 103.84*
per piece
 
 piece
Carlo Gavazzi Phase Monitoring Relay, 3 Phase, SPDT, 177 → 550V ac, DIN Rail / 8577662 (2 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
DPA51CM44
from £ 41.39*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPST, DIN Rail / 8577075 (3 offers) 
Carlo Gavazzi Over Current Monitor. Small current monitoring relay combined with built-in current transformer with a solid state output. Easily installed via a 2 wire connection. 12mm hole allows f...
Carlo Gavazzi
DIA53S72420A
from £ 45.35*
per piece
 
 piece
Carlo Gavazzi Current, Voltage Monitoring Relay, 1 Phase, SPDT, 0.4 → 4 V ac, 2 → 20V ac/dc, DIN Rail / 8577167 (2 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
DUA01CB23500V
from £ 67.71*
per piece
 
 piece
Carlo Gavazzi Phase, Voltage Monitoring Relay, 3 Phase, SPDT, 510 → 760V ac, DIN Rail / 8593083 (3 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
DPA01CM69
from £ 89.06*
per piece
 
 piece
Carlo Gavazzi Phase, Voltage Monitoring Relay, 3, 3+N Phase, SPDT, 323 → 550V ac, DIN Rail / 8577426 (2 offers) 
DPC01/PPC01 Multifunction Monitoring Relay. Carlo Gavazzi DPC01 ; PPC01 series of monitoring relays provide the user with a comprehensive variety of monitoring options such as phase sequence, loss ...
Carlo Gavazzi
DPC01DM48
from £ 189.75*
per piece
 
 piece
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