Product range
My Mercateo
Sign in / Register
Basket
 
 
 >  >  >  > Monitoring Relays ---

  Monitoring Relays (161 items)

The following filters help refine the item list according to your needs:
Filter: Price fromto£  Word filter 
Features
☐
Layout
☐
☐
☐
☐
Picture
Order
External antenna; F&Home; 868MHz (1 offer) 
Manufacturer: F&F Frequency: 868MHz Type of module: external antenna Manufacturer series: F&Home
F&F
RH-ANT
from £ 10.20*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; panel (1 offer) 
Manufacturer: F&F Mounting: panel Operating temperature: -25...40°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: lead 0,5m Type of module: voltage monito...
F&F
CZF
from £ 11.36*
per piece
 
 piece
Voltage monitoring relay; wall mount; CKF; SPST-NO; 250VAC/10A (1 offer) 
Manufacturer: F&F Mounting: wall mount 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 module: vol...
F&F
CKF
from £ 11.92*
per piece
 
 piece
Voltage monitoring relay; phase failure (1 offer) 
Manufacturer: F&F Type of module: voltage monitoring relay Controlled parameter: phase failure
F&F
CZF-B
from £ 12.47*
per piece
 
 piece
Transmitter; 12VDC; RS; IP20; 868MHz; Control: wireless; Ch: 1 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 12V DC Frequency: 868MHz Number of channels: 1 Related items: RS-407B;RS-407M Type of module: transmitter Control...
F&F
RS-P1
from £ 12.56*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: NO / NC Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of ...
F&F
CZF-BS
from £ 12.97*
per piece
 
 piece
Power limiter; reactive power,active power; 85÷265VAC; 4÷30s (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 85...265V AC Output configuration: NO Type of module: power limiter Controlled parameter: reactive power;active p...
F&F
OM-616
from £ 13.05*
per piece
 
 piece
Transmitter; 12VDC; RS; IP20; 868MHz; Control: wireless; Ch: 2 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 12V DC Frequency: 868MHz Number of channels: 2 Related items: RS-407B;RS-407M Type of module: transmitter Control...
F&F
RS-P2
from £ 13.72*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: NO / NC Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of ...
F&F
CZF-311
from £ 13.74*
per piece
 
 piece
Transmitter; 3VDC; RS; IP00; 868MHz; Control: wireless; Ch: 1 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP00 Supply voltage: 3V DC Frequency: 868MHz Number of channels: 1 Related items: RS-407B;RS-407M Type of module: transmitter Control:...
F&F
RS-N1
from £ 13.77*
per piece
 
 piece
Transmitter; 12VDC; RS; IP20; 868MHz; Control: wireless; Ch: 3 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 12V DC Frequency: 868MHz Number of channels: 3 Related items: RS-407B;RS-407M Type of module: transmitter Control...
F&F
RS-P3
from £ 13.89*
per piece
 
 piece
Transmitter; 3VDC; RS; IP00; 868MHz; Control: wireless; Ch: 2 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP00 Supply voltage: 3V DC Frequency: 868MHz Number of channels: 2 Related items: RS-407B;RS-407M Type of module: transmitter Control:...
F&F
RS-N2
from £ 14.02*
per piece
 
 piece
Transmitter; 3VDC; RS; IP00; 868MHz; Control: wireless; Ch: 4 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP00 Supply voltage: 3V DC Frequency: 868MHz Number of channels: 4 Related items: RS-407B;RS-407M Type of module: transmitter Control:...
F&F
RS-N4
from £ 14.99*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CZF; SPST-NO (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-TRMS
from £ 15.20*
per piece
 
 piece
Transmitter; 12VDC; RS; IP20; 868MHz; Control: wireless; Ch: 4 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 12V DC Frequency: 868MHz Number of channels: 4 Related items: RS-407B;RS-407M Type of module: transmitter Control...
F&F
RS-P4
from £ 15.26*
per piece
 
 piece
Transmitter; 3VDC; RS; IP00; 868MHz; Control: wireless; Ch: 3 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP00 Supply voltage: 3V DC Frequency: 868MHz Number of channels: 3 Related items: RS-407B;RS-407M Type of module: transmitter Control:...
F&F
RS-N3
from £ 15.34*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPST-NO (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of ...
F&F
CKF-B
from £ 15.59*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-316
from £ 15.77*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (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-2
from £ 15.99*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-310
from £ 16.03*
per piece
 
 piece
Dimmer; 230VAC; in mounting box; Leads: screw terminals; 1.3A (1 offer) 
Manufacturer: F&F Mounting: in mounting box Operating temperature: -25...50°C Supply voltage: 230V AC Leads: screw terminals Max. operating current: 1.3A Switching capacity: 300W Type of module: di...
F&F
SCO-801
from £ 16.22*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (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
CZF-BR
from £ 16.84*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; 1.5÷2s (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 230V AC Body dimensions: 50x67x26mm Output configuration: NO Type of module: power limiter Controlled parameter: ...
F&F
OM-1
from £ 17.21*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; 2÷40s; IP20 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 230V AC Output configuration: NO/NC Type of module: power limiter Controlled parameter: reactive power;active pow...
F&F
OM-611
from £ 17.30*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (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-BR
from £ 17.30*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (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
CZF-BT
from £ 17.92*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPST-NO (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 £ 17.96*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-317
from £ 18.02*
per piece
 
 piece
Voltage monitoring relay; phase failure (1 offer) 
Manufacturer: F&F Type of module: voltage monitoring relay Controlled parameter: phase failure
F&F
CZF-2B
from £ 18.10*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (1 offer) 
Manufacturer: F&F 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 module: voltage monitoring relay...
F&F
CZF-2BR
from £ 18.56*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; 10÷100s (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 230V AC Output configuration: NO Type of module: power limiter Controlled parameter: reactive power;active power ...
F&F
OM-632
from £ 18.69*
per piece
 
 piece
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 Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-310-TRMS
from £ 18.84*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; DPDT; IP20 (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-B-TRMS
from £ 18.90*
per piece
 
 piece
Level monitoring relay; conductive fluid level; 230VAC; NO / NC (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Kind of output 1: NO / NC IP rating: IP20 Supply voltage: 230V AC Kit contents: monitoring relay Type of module: ...
F&F
PZ-828B
from £ 18.92*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CZF; SPST-NO (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 £ 18.92*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; 1.5÷2s (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 230V AC Body dimensions: 50x67x26mm Output configuration: NO Type of module: power limiter Controlled parameter: ...
F&F
OM-2
from £ 19.04*
per piece
 
 piece
Power limiter; reactive power,active power; 165÷265VAC; IP20 (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 165...265V AC Type of module: power limiter Controlled parameter: reactive power;active power Contact actuation d...
F&F
OM-623
from £ 19.14*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-316-TRMS
from £ 19.20*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: NO / NC x2 Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type ...
F&F
CZF-331
from £ 19.24*
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-BT
from £ 19.27*
per piece
 
 piece
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 Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-311-TRMS
from £ 19.38*
per piece
 
 piece
Dimmer; 12VDC; in mounting box; Leads: lead x3; 3A; 36W (1 offer) 
Manufacturer: F&F Mounting: in mounting box Operating temperature: -25...50°C Supply voltage: 12V DC Leads: lead x3 Max. operating current: 3A Switching capacity: 36W Type of module: dimmer
F&F
SCO-803
from £ 19.46*
per piece
 
 piece
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 Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-BR-TRMS
from £ 19.58*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-317-TRMS
from £ 19.73*
per piece
 
 piece
Power limiter; reactive power,active power; 230VAC; 1.5÷2s (1 offer) 
Manufacturer: F&F Operating temperature: -25...50°C IP rating: IP20 Supply voltage: 230V AC Body dimensions: 35x65x90mm Output configuration: NO Type of module: power limiter Controlled parameter: ...
F&F
OM-631
from £ 20.04*
per piece
 
 piece
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 Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CZF-BS-TRMS
from £ 20.19*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; CKF; SPDT; 4s (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type of mod...
F&F
CKF-BR-TRMS
from £ 21.45*
per piece
 
 piece
Voltage monitoring relay; phase asymmetry,phase failure; CZF (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
CZF-332
from £ 21.53*
per piece
 
 piece
Voltage monitoring relay (1 offer) 
Manufacturer: F&F Type of module: voltage monitoring relay
F&F
CP-710
from £ 21.99*
per piece
 
 piece
Level monitoring relay; conductive fluid level; 230VAC; NO / NC (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Kind of output 1: NO / NC IP rating: IP20 Supply voltage: 230V AC Kit contents: monitoring relay;PZ probe Type of...
F&F
PZ-828
from £ 22.05*
per piece
 
 piece
forward
Items per page: 10   15   20   50   100    Page: 1   2   3   4   forward
* Prices with asterisk are net prices excl. statutory VAT.
Our offer is only aimed at companies, public institutions and freelancers.