1. Type B: The ELR-3BN is a Type B residual current device that provides robust insulation and effective protection across a wide frequency spectrum.
2. TRMS Measurement Capability: The device features True RMS measurement to ensure effective and accurate readings, allowing it to operate precisely against waveform variations.
3. Modular DIN Rail Mounting: Thanks to its compact design and modular DIN rail mounting feature, you can install and set up the device quickly and easily.
4. 4-Terminal Connection with Type B Toroidal Current Transformers: The device supports 4-terminal connection with Type B toroidal current transformers, ensuring a more reliable connection.
5. 3-Color Status Indication: LED lights on the front of the device visually indicate its status; yellow for Alarm, green for Normal Operation, and red for Trip status.
6. Manual Test and Reset Feature: The manual test and reset buttons on the device allow for regular system checks and testing.
7. Remote Test and Reset Feature: The remote test and reset feature enables remote control of the device, simplifying maintenance processes.
8. 2 Separate Dry Contact Outputs for Trip and Alarm: The device has two separate dry contact outputs to indicate trip and alarm conditions.
9. RS485 Modbus Communication Protocol: With the RS485 Modbus communication protocol, the device offers a robust communication protocol for data transfer and can integrate with various meters and monitoring systems.
10. LCD Screen: The device's LCD screen allows the user to instantly view AC, DC, RMS, and maximum residual current values separately.

The ELR-3BN Type B Residual Current Device is a premium device designed to meet the safety needs of electrical systems with its reliable performance and diverse features.