ABB REM611 Motor Protection Relay

The ABB REM611 is a compact and intelligent relay designed for industrial motor protection. It belongs to the Relion® 611 series, optimized for synchronous and asynchronous motors. The relay enhances motor performance through integrated protection, monitoring, and control. Additionally, it supports various industrial applications with flexible voltage and current inputs.

Power Supply

The relay operates on both AC and DC power.

• Rated AC Voltage: 110–240V
• Rated DC Voltage: 24–110V

Current Inputs

The device handles high and low current levels reliably.

• Nominal Values: 1A / 5A
• Thermal Withstand: 4×In continuously, 100×In for 1 second
• Overcurrent Sensitivity: 0.2×In
• Earth Fault Sensitivity: 0.05×In

Voltage Inputs

It ensures accurate voltage sensing for stable motor control.

• Nominal Voltage: 100V / 110V / 120V AC
• Maximum Continuous Voltage: 1.5×Un
• Measurement Range: 10V to 150V
• Frequency Range: 45Hz – 65Hz

Power Consumption

The REM611 consumes low power in all operating modes.

• AC Input Load: < 3VA per phase
• DC Input Load: < 10W

Relay Outputs

It provides durable and responsive output contacts.

• Trip Contact Rating: 8A at 250V AC / 5A at 30V DC
• Breaking Capacity: 2,000 operations at rated load