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  Mains monitoring relays  (17,991 offers of 2,482,678 product items)

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Voltage monitoring relay; phase sequence; 3UG; SPDT; 250VAC/3A (1 offer) 
Manufacturer: SIEMENS Mounting: for DIN rail mounting Operating temperature: -20...65°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: spring clamps Body dime...
Siemens
3UG4511-2AP20
from € 75.15*
per piece
 
 piece
Voltage monitoring relay; undervoltage,phase failure; IP20 (1 offer) 
Manufacturer: ZAMEL Mounting: for DIN rail mounting Operating temperature: -20...45°C Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body dimensions: 35.4x90x66mm Ou...
ZAMEL
APM-20
from € 65.12*
per piece
 
 piece
Siemens 5TT3415 electrical relay (1 offer) 
Siemens 5TT3415
Siemens
5TT3415
from € 122.26*
per piece
 
 piece
Voltage monitoring relay; undervoltage,overvoltage; 150÷450VAC (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...50°C Kind of output 1: DPDT Power supply: from tested wiring system IP rating: IP20 Supply voltage: 150...450V AC Lead...
F&F
CP-721
from € 55.02*
per piece
 
 piece
Siemens 5TT3402 electrical relay (1 offer) 
Siemens 5TT3402
Siemens
5TT3402
from € 134.31*
per piece
 
 piece
Voltmeter; digital,mounting; 15÷660V; for DIN rail mounting (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: for DIN rail mounting Kind of display used: LED IP rating: IP40 (from the front);IP20 at terminal side Kind of network: three-phase Operating frequency: 45.....
LOVATO Electric
DMK 70 R1
from € 109.32*
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 € 29.12*
per piece
 
 piece
Wireless cutout power switch; flush mount; 85÷265VAC; IP20; FOX (1 offer) 
Manufacturer: F&F Mounting: flush mount Output: relay Number of outputs: 1 IP rating: IP20 Supply voltage: 85...265V AC Frequency: 2.4GHz Power consumption: 2W Number of channels: 1 Control voltage...
F&F
WI-R1S1P-P
from € 37.34*
per piece
 
 piece
blebox SwitchBox Wireless Black (1 offer) 
SwitchBox allows you to wirelessly turn on or off electric devices powered by network voltage of 230V and up to 3kW of power. You can control the load via mobile devices and/or personal computers w...
blebox
SWITCHBOX
from € 37.71*
per piece
 
 piece
Voltage monitoring relay; undervoltage,overvoltage; 24VAC; SPDT (1 offer) 
Manufacturer: OMRON Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: external IP rating: IP20 Supply voltage: 24V DC;24V...
Omron
K8AK-VW2 24VAC/DC
from € 107.35*
per piece
 
 piece
Wireless cutout power switch; in housing,in mounting box; IP20 (1 offer) 
Manufacturer: BLEBOX Mounting: in mounting box;in housing Output: relay IP rating: IP20 Supply voltage: 12...24V DC Frequency: 2.4GHz Application: iPad;iPhone;iPad mini;Android;personal computer;Wi...
BLEBOX
SWITCHBOXDC
from € 31.21*
per piece
 
 piece
Voltage monitoring relay; undervoltage,overvoltage; CP; SPDT (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
CP-730
from € 34.71*
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 € 54.92*
per piece
 
 piece
Siemens 5TT3400 electrical relay (1 offer) 
Siemens 5TT3400
Siemens
5TT3400
from € 102.94*
per piece
 
 piece
Voltmeter; digital,mounting; 15÷660V; on panel; True RMS; LED (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: on panel Output: relay Kind of display used: LED IP rating: IP20 at terminal side;IP54 (from the front) Mounting hole diameter: 91x45mm Kind of network: sing...
LOVATO Electric
DMK00R1
from € 98.83*
per piece
 
 piece
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