Schneider RM17TU00 Harmony 3-Phase Monitoring Relay 380-480V

The Schneider Electric RM17TU00 is a multifunctional three-phase monitoring relay from the Harmony Control Relays range. It detects undervoltage, incorrect phase sequence, and phase loss on three-phase networks, with a self-powered design covering 183 to 528 V AC and an adjustable fault time delay of 0.1 to 10 s.

Technical specifications:

• Commercial reference: RM17TU00
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Harmony Control Relays
• Relay type: Multifunctional control relay, three-phase
• Supply voltage: 183...528 V AC (self-powered)
• Measurement range: 208...480 V AC
• Adjustable time delay (fault): 0.1...10 s +/- 10%
• Output: 1 C/O contact, rated 5 A, max 250 V AC / 250 V DC
• Switching capacity: 1250 VA
• Phase loss sensitivity: 0.7 Un
• Response time: less than 200 ms (fault condition)
• Reset time: 1500 ms
• Mounting: 35 mm symmetrical DIN rail per IEC 60715
• Connection: Screw terminals, 0.5...4 mm² solid / 0.2...2.5 mm² flexible
• Width: 17.5 mm | Weight: 0.13 kg
• Operating temperature: -20...50°C | Storage temperature: -40...70°C
• IP rating: IP20 (terminals), IP30 (housing) per IEC 60529
• Certifications: GL, GOST, UL, C-Tick, CSA, CE

Features and benefits:

• Self-powered design eliminates the need for a separate auxiliary supply
• Wide supply tolerance (183...528 V AC) suits diverse three-phase industrial networks
• Adjustable fault time delay (0.1 to 10 s) minimises nuisance tripping on transient disturbances
• Dual LED status indication: green for device energised, yellow for relay active
• High reliability with MTTFd of 502.2 years and B10d of 470,000 operations

Applications:

• Three-phase motor protection against phase loss and incorrect phase sequence
• Industrial control panels requiring continuous three-phase supply monitoring
• Compressor and pump installations with voltage quality supervision
• Process automation systems requiring configurable fault response timing

Compliant with IEC 60255-1, IEC 60664-1, and IEC 60947-5-1. Part of the Schneider Electric Harmony Control Relays range.

Also known as: Schneider RM17TU00, Schneider Electric RM17TU00, three-phase voltage monitoring relay, phase loss relay.