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  Monitoring Relays (1,266 items)

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Voltage monitoring relay; for DIN rail mounting; CZF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: scre...
F&F
CZF-331-TRMS
from £ 24.49*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; SPST-NO (1 offer) 
Manufacturer: ZAMEL Operating temperature: -20...60°C Kind of output 1: SPST-NO IP rating: IP20 Supply voltage: 230V AC Body dimensions: 90x17.5x66mm Number of terminals: 4 Type of module: power li...
ZAMEL
PMM-02
from £ 25.03*
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 £ 25.10*
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 £ 25.12*
per piece
 
 piece
Voltage monitoring relay; phase sequence,phase failure; SPDT (4 offers) 
Manufacturer: OMRON Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body dime...
Omron
K8DS-PH1
from £ 25.75*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; IP20 (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-337
from £ 25.76*
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 £ 26.18*
per piece
 
 piece
Voltage monitoring relay; too low voltage; 230VAC; IP20; 8A (1 offer) 
Manufacturer: ELCO SRL Mounting: for DIN rail mounting Operating temperature: -20...50°C Electrical connection: screw terminals IP rating: IP20 Supply voltage: 230V AC Body dimensions: 98x17.5x64mm...
Elco
EVU231F
from £ 26.29*
per piece
 
 piece
Voltage monitoring relay; too low voltage; IP20; 98x17.5x64mm (1 offer) 
Manufacturer: ELCO SRL Mounting: for DIN rail mounting Operating temperature: -20...50°C Electrical connection: screw terminals IP rating: IP20 Body dimensions: 98x17.5x64mm Kind of output: relay I...
Elco
EVU400NF
from £ 26.87*
per piece
 
 piece
Voltage monitoring relay; undervoltage,overvoltage; 230VAC (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-111M
from £ 27.02*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; RNPP; SPDT (1 offer) 
Manufacturer: NOVATEK ELECTRO Mounting: for DIN rail mounting Operating temperature: -35...55°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: from tested wiring system IP rating: IP40...
NOVATEK ELECTRO
RNPP-311M
from £ 27.17*
per piece
 
 piece
Voltage monitoring relay; undervoltage,overvoltage; 230VAC (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: 230V AC Leads: s...
ZAMEL
PNM-10
from £ 27.45*
per piece
 
 piece
Electrode; IP68; stainless steel; Ø4x1000mm; Insulation: FR (1 offer) 
Manufacturer: CARLO GAVAZZI Insulator material: FR Operating temperature: -20...90°C IP rating: IP68 Body material: stainless steel Related items: CLH3;CLH5 Type of control accessories: electrode #...
Carlo Gavazzi
CLE1PX
from £ 27.84*
per piece
 
 piece
Voltage monitoring relay; phase sequence,phase failure; 0.1s (4 offers) 
Manufacturer: OMRON Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: transistor Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Bod...
Omron
K8DT-PH1TN
from £ 27.84*
per piece
 
 piece
Meter; DC voltage; 100÷240VAC; on panel; MT4Y; Display: LED; 14.2mm (1 offer) 
Manufacturer: AUTONICS Mounting: on panel Operating temperature: -10...50°C Kind of display used: LED Electrical connection: screw terminals Display height 1: 14.2mm Supply voltage: 100...240V AC M...
Autonics
MT4Y-DV-4N
from £ 27.87*
per piece
 
 piece
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