Telemecanique RM84873016 Three-Phase Monitoring Relay

Description:

The Telemecanique RM873 (RM84873016) three-phase monitoring relay is used in industrial power monitoring and motor protection systems to detect phase loss and phase sequence faults. Commonly installed in motor control centers, pump stations, conveyor systems, HVAC equipment, compressors, and industrial automation panels operating on three-phase power supplies. Maintenance teams, OEMs, and system integrators use this monitoring relay for equipment replacement, electrical system retrofits, preventive maintenance, and new control panel installations.

Applications:

The Telemecanique RM873 (RM84873016) monitoring relay is designed to continuously monitor three-phase power supplies for abnormal operating conditions such as phase loss and incorrect phase sequence. It is widely used in industrial automation, motor control systems, pumping stations, compressors, material handling equipment, and manufacturing facilities where reliable phase monitoring helps protect motors and electrical equipment from damage caused by power supply faults.

Technical Specifications:

• Manufacturer Part Number (MPN): RM84873016 (RM873)
• Manufacturer: Telemecanique (Schneider Electric)
• Product Type: Three-Phase Monitoring Relay
• Product Series: Zelio Control RM873
• Relay Function: Phase sequence and phase loss monitoring
• Supply Voltage: 460–660 V AC (3-phase)
• Operating Frequency: 50/60 Hz
• Output Contact Rating: 8 A at 250 V AC
• Motor Rating: 1/3 HP at 240 V AC
• Power Consumption: 6 VA maximum
• Operating Range: 0.7–1.2 × Un
• Mounting Style: DIN rail mount
• Compatible Systems: Three-phase motor control and industrial automation systems
• Replacement Type: OEM direct replacement

Common Replacements:

• Schneider Electric RM84873016
• Telemecanique RM873
• OEM equivalent RM84873016