ACREL 16-Channel Residual Current Relay
ACREL 16-Channel Residual Current Relay is a 16-channel residual current monitoring relay for monitoring leakage and ground-fault current across multiple circuits. Designed for 400 V AC and below distribution systems, it supports residual current measurement from 1 mA to 30 A, adjustable alarm thresholds, fault recording and communication via RS485 Modbus-RTU and 4G.
The ACREL 16-Channel Residual Current Relay is designed for multi-circuit residual current monitoring in low-voltage distribution systems. It is suitable for TN-S and TT distribution lines and can monitor up to 16 individual circuits from a single monitoring device.
Residual current is measured using compatible AKH-0.66/L series residual current transformers. The transformers monitor the conductors of each circuit and send the residual current signal to the ACREL 16-Channel Residual Current Relay. Up to 16 transformers can be connected to one monitor, allowing multiple circuits to be supervised from a central point.
How it works
- The ACREL 16-Channel Residual Current Relay receives residual current signals from up to 16 compatible residual current transformers.
- Each channel can measure residual current across a response range of 1 mA to 30 A.
- Individual channels can be configured for over-value alarm, operating functions or closed operation.
- The device can record up to 30 fault events, including the fault type and fault time.
- RS485 with Modbus-RTU allows the monitor to be connected to a wider monitoring network, while 4G communication provides wireless communication capability.
Why choose this product?
The main advantage of the ACREL 16-Channel Residual Current Relay is its ability to monitor multiple circuits from one device. This can simplify residual current monitoring where several distribution circuits need to be supervised within the same electrical installation.
The adjustable alarm range allows monitoring settings to be selected for individual circuits rather than using a single fixed threshold across the entire installation. Fault records can also assist with identifying when residual current events have occurred.
Benefits
- Monitors up to 16 circuits from one residual current monitor
- Supports residual current measurement from 1 mA to 30 A
- Provides configurable alarm settings for individual channels
- Stores up to 30 fault records
- Supports RS485 Modbus-RTU communication
- Provides 4G wireless communication
- Includes a manual self-test function
- Provides a reset function for cleared faults