Schneider Electric Voltage Monitoring Relay, 3 Phase, SPDT, 183 → 528V ac, DIN Rail

Schneider Electric RM17/35 UB measurement and control relays for 3 phase supplies, monitor correct sequences of phases L1, L2 and L3. It also monitors total loss of one or more phases, asymmetry, and over and undervoltage with independent adjustments. In the event of voltage fault, the relay opens at the end of the time delay set by the user, if the device is switched on with a measured fault, the relay remains open. In the event of loss of neutral or a phase sequence, the relay opens instantly.

Checks its own power supply
Clear hinged front cover
Potentiometer selects voltages between phases
LED display of output status
DIN Rail mounting

NF EN 60255-6 and IEC 60255-6

UL, CSA, GL, C-Tick, GOST

This monitoring relay is designed for voltage oversight in three-phase electrical systems. It identifies overvoltage and undervoltage scenarios, ensuring efficient operation of electrical equipment. By offering real-time feedback, this device helps safeguard against potential damage, enhancing system reliability.

• Adjustable time delay from 0.3 to 30 seconds provides flexibility
• Monitors phase voltage to avert system failures
• SPDT relay configuration accommodates various applications
• Compact DIN rail mounting simplifies installation
• Operating temperature range of -20°C to +50°C supports diverse conditions
• High maximum voltage sensing of 528V AC enhances dependability

• Suitable for three-phase supply systems for voltage monitoring
• Used in industrial control systems to improve automation
• Applicable in machinery to protect against power fluctuations
• Employed in electrical panels for proactive fault notification

The device can be securely mounted on a standard 35mm DIN rail for optimal operation.

The relay has adjustable thresholds for voltage detection, allowing configuration directly from the front panel.

Regular checks should be performed to ensure secure connections and inspect for any signs of wear.

The relay features LED indicators for power and relay status, providing clear visual confirmation of its operational state.

Schneider Electric Voltage, Current, Phase & Motor Protection