Residual current device RH10M 380/415VAC 0.03A 56140

Differential relay – protection and safety for electrical installations

This RH10M differential relay, designed for operation in 380/415VAC networks, is a key element ensuring the protection of people and equipment against the effects of short circuits and leakage currents. The device effectively detects current differences in the circuit, allowing for a quick response and power disconnection in the event of a failure. This is particularly important in installations where safety is a priority.

Functionality and application

The RH10M relay is designed to operate in alternating current circuits. Its current measurement range is from 0.015 to 60 mA, and the current setting value can be adjusted in two ranges: 30 mA (fixed value) and from 0 to 30 mA. This allows it to be adapted to the specific requirements of a given installation. The device is used to protect circuits with a rated operating frequency of 50 to 400 Hz. The use of screw connections ensures secure and durable electrical connections.

Characteristics and benefits

• Fast response: The maximum permissible time delay when power is applied is only 0.04 s, which guarantees almost instantaneous disconnection of the circuit in the event of a dangerous situation.
• Sensitivity adjustment: The ability to adjust the current setting value allows for precise adaptation of the relay to specific application needs.
• High reliability: Solid construction and the use of high-quality components ensure long-lasting and trouble-free operation of the device.
• Compact dimensions: Dimensions of 54 x 97 x 74 mm allow for easy integration of the relay into existing electrical installations.
• Universal supply voltage: The relay works with both AC 50 Hz and AC 60 Hz voltage in the range of 380-415V, which increases its flexibility of use.
• Rated switching current: Rated switching current at 8A ensures compatibility with various loads.

The RH10M relay is equipped with one normally open contact and one normally closed contact, allowing it to be integrated with control systems and alarm signaling systems. The lack of a fault memory function means that after removing the cause of the tripping, the relay automatically returns to the ready-to-operate state. The device requires an external power source for proper operation.