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  Monitoring relays  (1,017 offers of 5,365,397 product items)

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Schneider Electric RM22TG20 electrical relay Black (4 offers)
Schneider Electric
RM22TG20
from £ 43.73*
per piece
 
 piece
Carlo Gavazzi Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2098591 (2 offers) 
The Carlo Gavazzi voltage monitoring relay can operate on both 3Ph and 3Ph+N mains detecting, besides the phase loss and the correct phase sequence, possible overvoltages and undervoltages. The pow...
Carlo Gavazzi
DPB02CM44
from £ 126.77*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of ...
F&F
CKF-TRMS
from £ 17.76*
per piece
 
 piece
Schneider Electric Voltage Monitoring Relay, 3 Phase, DPDT, 200 → 240V ac, DIN Rail / 2118399 (3 offers) 
The Schneider Electrics three phase voltage control relay with 200 to 240 Vac.Removal Latch Dust Protection Self-locks
Schneider Electric
RM22TR31
from £ 80.60*
per piece
 
 piece
Carlo Gavazzi Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2098592 (2 offers) 
The Carlo Gavazzi voltage monitoring relay can operate on both 3P and 3P+N systems, monitoring phase loss and phase sequence, overvoltage and undervoltage, voltage asymmetry and tolerance. The powe...
Carlo Gavazzi
DPC01DM44
from £ 173.07*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, DPDT / 2131309 (2 offers) 
The Siemens 3UG series is a didgital monitoring relay. The monitoring function is of phase monitoring. Withh 1 change-over contacts for for phase correction and 1 change-over contact for for line s...
Siemens
3UG4618-2CR20
from £ 158.34*
per piece
 
 piece
Carlo Gavazzi Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 8577182 (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
DIB01CB235A
from £ 104.71*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; 1÷5s (1 offer) 
Manufacturer: ZAMEL Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPST-NO Kind of output 2: SPST-NC Power supply: from tested wiring system IP rating: IP20 Lea...
ZAMEL
CAM-01
from £ 16.73*
per piece
 
 piece
Carlo Gavazzi Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2098590 (2 offers) 
The Carlo Gavazzi voltage monitoring relay can operate on both 3Ph and 3Ph+N mains detecting, besides the phase loss and the correct phase sequence, possible overvoltages and undervoltages. The pow...
Carlo Gavazzi
DPB01CM44
from £ 126.94*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of ...
F&F
CZF-B-TRMS
from £ 19.16*
per piece
 
 piece
Dold Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 3586901 (1 offer) 
Undercurrent relay, single phase, IK9271. Application: 1-phase undercurrent monitoring in three-phase and alternating current networks 4 measurement ranges from 0.1 → 15 A without an additional cur...
DOLD
IK9271.11 AC220-240V 0.1-15A Tv=0.1-20S
£ 172.904*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; DPDT (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 at terminal side Leads...
LOVATO Electric
PMV80NA440
from £ 276.61*
per piece
 
 piece
Carlo Gavazzi Voltage Monitoring Relay, 3 Phase, SPDT, Plug In / 2098602 (2 offers) 
The Carlo Gavazzi voltage monitoring relay can operate on both 3Ph and 3Ph+N mains detecting, besides the phase loss and the correct phase sequence, possible overvoltages and undervoltages. The pow...
Carlo Gavazzi
PPB02CM44
from £ 126.97*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 2033944 (2 offers) 
The Siemens analog monitoring relay used for network monitoring relay with analog setting. It used spring type of terminal and it has LED display. It use snap-on mounting type.Ambient temperature i...
Siemens
3UG4512-2BR20
from £ 79.43*
per piece
 
 piece
Carlo Gavazzi Frequency, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2098593 (2 offers) 
The Carlo Gavazzi voltage and frequency monitoring relay can operate on both 3P and 3P+N systems, monitoring phase loss and phase sequence, overvoltage and undervoltage, voltage asymmetry and toler...
Carlo Gavazzi
DPC02DM44
from £ 193.61*
per piece
 
 piece
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