Phase monitoring relays  (563 offers of 2,618,036 product items)

Monitoring relay for monitoring phase sequence, phase failure and asymmetry, 342 ... 457 V AC, supply from measurement supply, 2 PDTs

The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a...

Shelly Plus 2PM is a one-phase, two channel smart relay supporting up to 10A per channel and 16A total current (18A peak). It is equipped with two power meters for each channel and an overpower pro...

Voltage monitoring relay, Dimensions W x H x D: 17.5 x 87 x 65 mm, Operating temperature: -25...+55 °C, Operating voltage: 24 VAC/DC, 230 VAC, Switching capacity: 5 A @ 250 VAC, Switching hysteresi...

Monitoring relay for monitoring 3-phase voltages of 280...520 V AC, window, with neutral conductor connection, supply voltage can be selected using power module, 1 PDT

The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a...

Voltage monitoring relay, Frequency range: 50...60 Hz, Operating temperature: -20...+60 °C, Rated output: 250 VAC/10 A, Voltage measurement range, AC: 170...270 VAC, Operating voltage type: Single ...

Monitoring relay for monitoring 3-phase voltages of 160 ... 300 V AC, undervoltage, window, phase sequence, phase failure, asymmetry, wide-range power supply unit, 2 PDTs

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The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and h...

Voltage monitoring relay, Frequency range: 50...60 Hz, Operating temperature: -20...+60 °C, Rated output: 250 VAC/6 A, Voltage measurement range, AC: 208...480 VAC, Operating voltage type: 3-phase,...

The CM-ESS.MP is a multifunctional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has...

Voltage monitoring relay, Frequency range: 50...60 Hz, Operating temperature: -20...+60 °C, Rated output: 250 VAC/8 A, Voltage measurement range, AC: 300...480 VAC, Operating voltage type: 3-phase,...

The CM-MPS.11S is a multifunctional relay from the CM three-phase monitors range. It operates with a rated control supply voltage / three-phase measuring voltage of 90-170 V AC 50/60 Hz and has a 2...