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  Monitoring Relays (35 items)

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Current monitoring relay (1 offer) 
Manufacturer: ELKO EP Type of module: current monitoring relay
ELKO EP
PRI-51/2A
from £ 23.49*
per piece
 
 piece
Current monitoring relay; AC current; 230VAC; PRI-52; SPDT; IP20 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: external IP rating: IP20 Supply voltage: 230V AC Leads: screw terminals ...
ELKO EP
PRI-52
from £ 40.75*
per piece
 
 piece
Current monitoring relay; AC current; 24÷240VAC; 24VDC; PRI-51 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: external IP rating: IP20 Supply voltage: 24V DC;24...240V AC Leads: scre...
ELKO EP
PRI-51/16A
from £ 22.76*
per piece
 
 piece
Current monitoring relay; AC current; 24÷240VAC; 24VDC; PRI-51 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: external IP rating: IP20 Supply voltage: 24V DC;24...240V AC Leads: scre...
ELKO EP
PRI-51/5A
from £ 21.59*
per piece
 
 piece
Current monitoring relay; AC current; 24÷240VAC; 24VDC; PRI-51 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: external IP rating: IP20 Supply voltage: 24V DC;24...240V AC Leads: scre...
ELKO EP
PRI-51/1A
from £ 23.87*
per piece
 
 piece
Frequency monitoring relay; AC voltage frequency; 161÷500VAC (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT x2 Power supply: from tested wiring system IP rating: IP20 Supply voltage: 161...500V ...
ELKO EP
HRF-10
from £ 39.00*
per piece
 
 piece
Level monitoring relay; conductive fluid level; 24÷240VAC; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: external IP rating: IP20 Supply voltage: 24...240V AC;24...240V DC Leads...
ELKO EP
HRH-5/UNI
from £ 23.83*
per piece
 
 piece
Power factor monitoring relay; power factor cosφ; 230VAC; COS-2 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT x2 Current rating: 0.1...16A IP rating: IP20 Supply voltage: 230V AC Leads: screw term...
ELKO EP
COS-2/230V
from £ 63.90*
per piece
 
 piece
Sensor for fluid level controllers (1 offer) 
Manufacturer: ELKO EP Type of control accessories: sensor for fluid level controllers
ELKO EP
SHR-1-M
from £ 2.80*
per piece
 
 piece
Sensor for fluid level controllers (1 offer) 
Manufacturer: ELKO EP Type of control accessories: sensor for fluid level controllers
ELKO EP
SHR-1-N
from £ 3.15*
per piece
 
 piece
Sensor for fluid level controllers (1 offer) 
Manufacturer: ELKO EP Type of control accessories: sensor for fluid level controllers
ELKO EP
SHR-2
from £ 6.98*
per piece
 
 piece
Sensor for fluid level controllers (1 offer) 
Manufacturer: ELKO EP Type of control accessories: sensor for fluid level controllers
ELKO EP
SHR-3
from £ 35.59*
per piece
 
 piece
Temperature monitoring relay; temperature; 24VAC,230VAC; 24VDC (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...45°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Supply voltage: 24V DC;230V...
DOBRY CZAS
MMR17-RTA-M230-108
from £ 22.99*
per piece
 
 piece
Temperature monitoring relay; temperature; 24÷240VAC; 24÷240VDC (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: DPDT IP rating: IP20 Supply voltage: 24...240V AC;24...240V DC Leads: screw terminals Body ...
ELKO EP
TER-7
from £ 25.56*
per piece
 
 piece
Voltage monitoring relay; 12/24VAC,230VAC; 12VDC,24VDC,230VDC (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Supply voltage: 12V DC;24V ...
DOBRY CZAS
MMR17-V1A-U230-108
from £ 24.81*
per piece
 
 piece
Voltage monitoring relay; 230VAC; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -25...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP40 Supply voltage: 230V AC Leads:...
ELKO EP
HRN-43N/230V
from £ 40.16*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; DPDT; IP20 (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Max. ope...
POLLIN
SZR-2
from £ 116.98*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; HRN-54; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body di...
ELKO EP
HRN-54
from £ 35.90*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; HRN-54; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body di...
ELKO EP
HRN-54N
from £ 35.81*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MKF; DPDT (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP40;IP20 at terminal side Leads: sc...
POLLIN
MKF-12PK
from £ 31.56*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MKF; SPDT (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP40;IP20 at terminal side Leads: sc...
POLLIN
MKF-2PK
from £ 33.75*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MKF; SPDT (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP40;IP20 at terminal side Leads: sc...
POLLIN
MKF-1PK
from £ 22.19*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MKF; SPDT (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP40;IP20 at terminal side Leads: sc...
POLLIN
MKF-2P
from £ 29.97*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MMR; SPST; IP20 (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MSM17-S3A-A230-105-G
from £ 14.16*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; MMR; SPST; IP20 (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MMR17-V3A-M230-108
from £ 27.90*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; SPST-NO; IP20 (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Max. ...
POLLIN
SZR-1
from £ 99.03*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body di...
ELKO EP
HRN-55
from £ 23.51*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body di...
ELKO EP
HRN-55N
from £ 24.20*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; SPDT (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP10 Leads: screw terminals Type of...
ELKO EP
HRN-57N
from £ 34.53*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase sequence; MMR (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MMR17-PDC-A230-108
from £ 16.08*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase sequence; MMR (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MMR17-PDF-A230-108
from £ 15.36*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase sequence; MMR (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MMR17-PDE-A230-108
from £ 20.09*
per piece
 
 piece
Voltage monitoring relay; phase failure; for DIN rail mounting (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT IP rating: IP20 Leads: screw terminals Type of module: voltage monitoring relay Control...
POLLIN
MKF-2PR
from £ 24.24*
per piece
 
 piece
Voltage monitoring relay; undervoltage,phase failure; AZF; IP20 (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -15...45°C Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Output voltage: 230V AC Max. op...
POLLIN
AZF-3
from £ 50.69*
per piece
 
 piece
Voltage monitoring relay; undervoltage,phase failure; AZF; IP20 (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -15...45°C Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Output voltage: 230V AC Max. op...
POLLIN
AZF-4
from £ 59.24*
per piece
 
 piece
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