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  Phase unbalance relay  (1,287 offers of 5,746,393 product items)

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ABB Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 90 → 170V ac, DIN Rail / 7758040 (4 offers) 
CM-MPS x3 Multifunctional Three-Phase Monitoring Relays. The CM-MPSx3 are multifunctional monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure, o...
ABB
1SVR740885R1300 CM-MPS.11P
from £ 95.29*
per piece
 
 piece
Thermal relay; Series: RF38; Leads: screw terminals; 17÷23A (3 offers) 
Manufacturer: LOVATO ELECTRIC Resetting method: manual;automatic Leads: screw terminals Contactor series: RF38 Type of contactors accessories: thermal relay Controlled parameter: phase error Range ...
LOVATO Electric
RF382300
from £ 31.48*
per piece
 
 piece
ABB CM-MSS.23S electrical relay Black, Grey (4 offers) 
The CM-MSS.23S belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 110-130 V AC and 220-240 V AC and has a 2 c/o (SPDT) output with con...
ABB
1SVR730700R2200
from £ 43.80*
per piece
 
 piece
Thermal relay; Series: RF38; Leads: screw terminals; 32÷38A (3 offers) 
Manufacturer: LOVATO ELECTRIC Resetting method: manual;automatic Leads: screw terminals Contactor series: RF38 Type of contactors accessories: thermal relay Controlled parameter: phase error Range ...
LOVATO Electric
RF383800
from £ 48.90*
per piece
 
 piece
Thermal relay; Series: RF38; Leads: screw terminals; 2.5÷4A (3 offers) 
Manufacturer: LOVATO ELECTRIC Resetting method: manual;automatic Leads: screw terminals Contactor series: RF38 Type of contactors accessories: thermal relay Controlled parameter: phase error Range ...
LOVATO Electric
RF380400
from £ 27.85*
per piece
 
 piece
ABB
1SVR740740R0100
from £ 179.53*
per piece
 
 piece
Voltage monitoring relay; 230/400VAC; for DIN rail mounting (1 offer) 
Manufacturer: ZAMEL Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Supply voltage: 230/400V AC Lead...
ZAMEL
PNM-31
from £ 44.57*
per piece
 
 piece
ABB Temperature Monitoring Relay, 1 Phase, DPDT, DIN Rail / 8765042 (3 offers) 
Some products also have the ATEX approval for the use in hazardous areas. CM-MSS Series Thermistor Motor Protection Relays. Heavy duty starting Increased switching frequency High ambient temperatur...
ABB
1SVR740712R2200 CM-MSS.33P
from £ 48.61*
per piece
 
 piece
Thermal relay; Series: RF38; Leads: screw terminals; 24÷32A (3 offers) 
Manufacturer: LOVATO ELECTRIC Resetting method: manual;automatic Leads: screw terminals Contactor series: RF38 Type of contactors accessories: thermal relay Controlled parameter: phase error Range ...
LOVATO Electric
RF383200
from £ 47.50*
per piece
 
 piece
ABB Temperature Monitoring Relay, 1 Phase, SPDT, DIN Rail / 8765008 (3 offers) 
Some products also have the ATEX approval for the use in hazardous areas. CM-MSS Series Thermistor Motor Protection Relays. Heavy duty starting Increased switching frequency High ambient temperatur...
ABB
1SVR740700R2100 CM-MSS.13P
from £ 33.52*
per piece
 
 piece
Omron Voltage Monitoring Relay, 1 Phase, SPDT, 200 V, 300 V, 600 V, DIN Rail / 1113111 (3 offers) 
K8DT-VS Single Phase Under/Over Voltage Relay. Omron K8DT-VS single phase voltage monitor relay detects abnormal voltages applies to equipment to protect against equipment failure. Can be used in e...
Omron
K8DT-VS3CA
from £ 87.42*
per piece
 
 piece
ABB Temperature Monitoring Relay, 1 Phase, DPDT, DIN Rail / 8765020 (4 offers) 
Some products also have the ATEX approval for the use in hazardous areas. CM-MSS Series Thermistor Motor Protection Relays. Heavy duty starting Increased switching frequency High ambient temperatur...
ABB
1SVR740700R2200 CM-MSS.23P
from £ 43.77*
per piece
 
 piece
Thermal relay; Series: RF38; Leads: screw terminals; 4÷6.5A (3 offers) 
Manufacturer: LOVATO ELECTRIC Resetting method: manual;automatic Leads: screw terminals Contactor series: RF38 Type of contactors accessories: thermal relay Controlled parameter: phase error Range ...
LOVATO Electric
RF380650
from £ 28.43*
per piece
 
 piece
ABB Temperature Monitoring Relay, 3 Phase, SPDT, DIN Rail / 8765777 (3 offers) 
Housing material for highest fire protection classification UL 94 V-0. CM-TCS Temperature Monitoring Relays. The temperature monitoring relays CM-TCS monitor over-temperature, under-temperature, or...
ABB
1SVR740740R0300 CM-TCS.13P
from £ 177.71*
per piece
 
 piece
Voltage monitoring relay; 230VAC; for DIN rail mounting; RN (1 offer) 
Manufacturer: NOVATEK ELECTRO Mounting: for DIN rail mounting Operating temperature: -35...55°C Kind of display used: LED Kind of output 1: SPDT Power supply: from tested wiring system IP rating: I...
NOVATEK ELECTRO
RN-119
from £ 25.33*
per piece
 
 piece
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