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  Mains monitoring relays  (7,833 offers of 2,619,470 product items)

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Phoenix Contact 2982702 electrical relay (3 offers) 
PLC-INTERFACE with checkback contact, consisting of basic terminal block with screw connection and integrated miniature solid-state relay, for mounting on DIN rail NS 35/7,5, 1 N/O contact, input: ...
Phoenix Contact
2982702
from € 46.465*
per piece
 
 piece
Temperature controller, PT100 100...240 VAC (2 offers) 
Temperature controller, PT100, Dimensions W x H x D: 48 x 48 x 102 mm, Operating temperature: -10...+50 °C, Output: Relays, Scale: 0...200 °C, Scale division: 5 °C, Input types: Temperature, Input,...
Omron
E5C2-R20P-D AC100-240 0-200
from € 129.20*
per piece
 
 piece
Velleman K8056 electrical relay Green (1 offer) 
This relay card can be used in several ways : stand alone card, addressed by switches or open collector outputs or remote controlled through RS232. Since the card can be addressed using RS232 comma...
Velleman
K8056
from € 44.96*
per piece
 
 piece
Wago 750-478 fieldbus module Analog input module (2 offers) 
The analog input module processes signals of a standard magnitude 0–10V. - The input signal is electrically isolated and is transmitted with a resolution of 16 bits. - The internal system supply po...
WAGO Kontakttechnik
750-478
from € 217.15*
per piece
 
 piece
Wago 750-472 fieldbus module (2 offers) 
The analog input module powers the transducers, receives transmitted analog signals, and with electrical isolation, transmits the signals to the fieldbus. The 24V supply for the field is derived fr...
WAGO Kontakttechnik
750-472
from € 226.29*
per piece
 
 piece
Wago 750-554 fieldbus module (1 offer) 
The analog output module generates signals of a standard magnitude 4–20mA. The output signal is electrically isolated and transmitted with a resolution of 12 bits. Power is derived from the field s...
WAGO Kontakttechnik
750-554
from € 253.64*
per piece
 
 piece
BTR NETCOM 130283-I electrical relay White (1 offer) 
The SAR4 and SAR5 can be connected to a telecommunications access line or separate control voltage source (AC/DC) and are activated by the call voltage or control voltage. The SAR reacts either onl...
Metz Connect
130283-I
from € 63.95*
per piece
 
 piece
Wago 750-555 fieldbus module (2 offers) 
The analog output module generates signals of a standard magnitude 4–20mA. The output signal is electrically isolated and transmitted with a resolution of 12 bits. Power is derived from the field s...
WAGO Kontakttechnik
750-555
from € 230.05*
per piece
 
 piece
Cos-phi monitoring relay (1 offer) 
Cos-phi monitoring relay, Current-measuring range, AC: 0.5...10 A, Dimensions W x H x D: 25 x 90 x 108 mm, Frequency range: 10...100 Hz, Operating temperature: -25...+55 °C, Tripping delay: 0.1...4...
Tele
G2CU400V10AL10
from € 106.28*
per piece
 
 piece
Coupling relay (1 offer) 
Coupling relay, Control voltage: 24 VDC, Dimensions W x H x D: 15.8 x 78.6 x 75.3 mm, Operating temperature: -40...+70 °C, Design: Series 48, Contact material: AgNi, Contacts: 2 change-over (CO)
Finder
48.52.7.024.0050
from € 13.03*
per piece
 
 piece
Eaton 9130 Marine 1000VA 1 kVA 900 W 6 AC outlet(s) (1 offer) 
Marine approved UPS by the DNV and ABS, On-line double conversion UPS with automatic bypass, 1000VA/900W, 2000VA/1800W, 3000VA/2700W, Tower unit with mounting rails and vibration dampers, multiling...
Eaton
103007846-6591
from € 876.38*
per piece
 
 piece
Finder
58.33.8.230.0060
from € 19.39*
per piece
 
 piece
Coupling relay (2 offers) 
Coupling relay, Control voltage: 24 VDC, Dimensions W x H x D: 27.0 x 76.0 x 83.0 mm, Operating temperature: -40...+70 °C, Design: Series 58, Contact material: AgNi, Contacts: 4 change-over (CO)
Finder
58.34.9.024.0050
from € 17.58*
per piece
 
 piece
Current monitoring relay (2 offers) 
Current monitoring relay, Current-measuring range, AC: 5...50 A, Dimensions W x H x D: 81 x 17.5 x 67.2 mm, Frequency range: 45...400 Hz, Operating temperature: -20...+60 °C, Current-measuring rang...
Carlo Gavazzi
DIA53S72450AF
from € 49.99*
per piece
 
 piece
Current monitoring relay (2 offers) 
Current monitoring relay, Breaking delay: 0.1...30 s, Current-measuring range, AC: 0.1...5 A, Current-measuring range, DC: 0.1...5 A, Dimensions W x H x D: 22.5 x 98.5 x 83.5 mm, Operating temperat...
Carlo Gavazzi
DIB01CD485A
from € 114.35*
per piece
 
 piece
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