Monitoring Relays
What are Monitoring Relays?
Monitoring relays are electrical devices that are used to monitor various parameters in a power system, such as voltage, current, temperature, and frequency, and trigger an alarm or action if the values go beyond a preset threshold. They are designed to detect abnormal operating conditions in a system and alert operators or take corrective action to pre...
Showing 1-20 of 1280 products
RS Pro
Monitoring Relay
-
-
Undervoltage Monitoring
-
1
SPST
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
IP20
-
-
-
-20°C
230V ac
-
-
-
-
-
-
-
120/300 V
55°C
-
67.5mm
52.9mm
-
CE-UKCA ROHS-3
90.3mm
-
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Undervoltage Monitoring
-
1
-
-
-
-
DIN Rail
-
6VA
250V ac
-
-
-
-
-
IP20
-
-
-
-20°C
220V ac
-
-
-
-
-
-
5A
-
55°C
-
35.6mm
94.6mm
-
2006/95/EC - 2004/108/EC
-
GKM
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Undervoltage Monitoring
-
1
-
-
-
-
DIN Rail
-
6VA
250V ac
-
-
-
-
-
IP20
-
-
-
-20°C
220V ac
-
-
-
-
-
-
5A
-
55°C
-
35.4mm
9mm
-
2006/95/EC - 2004/108/EC
-
DKG
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Plug
-
3
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-20°C
150, 260V ac
-
-
-
-
-
-
-
150/260 V ac
55°C
-
23mm
95mm
-
2006/95/EC - 2004/108/EC
6mm
FKV
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Undervoltage Monitoring
-
3
SPDT
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
IP20
-
-
-
-20°C
380V ac
-
-
-
-
-
-
-
230/460 V
55°C
-
84.5mm
44mm
-
ROHS-3, CE-UKCA
75mm
-
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Plug
-
3
-
-
-
-
DIN Rail
-
4VA
250V ac
-
-
-
-
-
IP20
-
-
-
-20°C
380V ac
-
-
-
-
-
-
5A
380 V ac
55°C
-
23mm
95mm
-
2006/95/EC - 2004/108/EC
-
FKV
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
-
-
3
-
-
-
-
DIN Rail
-
6VA
250V ac
-
-
-
-
-
IP20
-
-
-
-20°C
380V ac
-
-
-
-
-
-
5A
-
55°C
-
35.4mm
94.6mm
-
2006/95/EC - 2004/108/EC
-
GKT
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
-
-
3
SPDT
-
-
-
DIN Rail
5A
-
-
100A
Overcurrent
-
-
-
IP20
-
0.1 to 20 s
-
-20°C
150, 260V ac
-
-
-
-
-
-
-
-
55°C
-
84.5mm
44mm
-
ROHS-3, CE-UKCA
75mm
-
-
-
-
-
-
-
-
-
RS Pro
Phase/Voltage Monitoring Relays
-
-
Undervoltage Monitoring
-
1
1 x 8A CO Relay Output
-
-
-
DIN Rail
-
6VA
-
-
-
-
Screw
-
IP40, IP20
-
-
-
-5°C
230V ac
270 V dc
-
-
-
-
-
8A
150 to 300 V ac
55°C
-
36mm
59mm
-
EC 60529, EC 60255-3, EC 60870-5, EC 60255-6
90mm
-
-
-
-
-
-
-
-
-
RS Pro
Phase/Voltage Monitoring Relays
-
-
Undervoltage Monitoring
-
1
-
-
-
-
DIN Rail
-
2W
-
-
-
-
Screw
-
IP40, IP20
-
-
-
-5°C
230V ac
270 V dc
-
-
-
-
-
8A
150 to 300 V ac
55°C
-
36mm
59.7mm
-
EC 60255-6, EC 60255-3, EC 60529, EC 60870-5
90mm
-
-
-
-
-
-
-
-
-
RS Pro
Phase/Voltage Monitoring Relays
-
-
Plug, Transducer
-
3
1 CO
-
-
-
DIN Rail
-
-
-
-
-
-
Screw
-
-
-
-
-
-5°C
230V ac
-
-
-
-
-
-
8A
230 V ac
55°C
-
35mm
58mm
-
No
90mm
-
-
-
-
-
-
-
-
-
RS Pro
Phase/Voltage Monitoring Relays
-
-
Plug
-
3
1 CO
-
-
-
DIN Rail
-
-
-
-
-
-
Screw
-
-
-
-
-
-5°C
230V ac
-
-
-
-
-
-
8A
380 V ac
55°C
-
35mm
58mm
-
No
90mm
MKC-03
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
-
-
1
SPDT
-
-
-
DIN Rail
-
3W
-
-
-
-
Screw
-
IP20
-
-
-
-20°C
-
24 V dc
-
-
-
-
-
8A
-
60°C
-
17.5mm
66.5mm
-
RoHS, UL, CE, IEC, EMC EN 61000-6
89mm
L
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
-
-
3
SPDT
-
-
-
DIN Rail
-
8VA
-
-
-
-
Screw
-
-
-
-
-
-20°C
280, 520V ac
-
-
-
-
-
-
8A
280/520 V ac
60°C
-
17.5mm
66.5mm
-
RoHS, EN 61000-6-4, cUL, IEC 60664
89mm
L
-
-
-
-
-
-
-
-
RS Pro
Monitoring Relay
-
-
Undervoltage Monitoring
-
3
SPDT
-
-
-
DIN Rail
-
16VA
-
-
-
-
Screw
-
IP20, IP30
-
-
-
-20°C
223, 7795V ac
-
-
-
-
-
-
3A
120/240 V ac
60°C
-
90mm
66.5mm
-
No
90mm
MAG0
-
-
-
-
-
-
-
-
...



















