Acrel AIM-OL Offline System Insulation Monitoring Device for water pumps/drive motors/ emergency fans/electric motors
2026-06-04
■ Insulation Monitoring Function. Monitors insulation of de-energized TN, TT, and IT systems, tracking insulation between phase lines or windings and ground. Alerts personnel to investigate faults when insulation resistance falls below the alarm threshold.
■ Warning and Alarm Function. Features two sets of independently adjustable thresholds for configuring insulation warning and alarm values.
■ LED Indicator Function. The panel features on, communication, warning, alarm, and fault LED indicators to display product status.
■ LCD Display Function. Utilizes a 128*32 dot matrix LCD to display parameter information.
■ PK Break Monitoring Function. Monitors status between PE and KE terminal to the PE. If any wire breaks, the product issues an alarm signal.
■ Remote Self-test Function. Features one input terminal that can be connected to an external switch; closing the switch for remote self-test.
■ Relay Output Function. Includes two outputs to insulation warning and alarm. DO outputs can be configured for normally open (N/O, same below) or normally closed contacts (N/C, same below).
■ SOE Function. Records up to 20 alarm events, including fault type and occurrence time.
■ Remote Communication Function. Features one RS485 interface with Modbus-RTU protocol.