Current monitoring relay PRI-51/5 002471818

Current monitoring relay – reliable protection and control

The PRI-51/5 relay is designed to monitor current in electrical circuits. It is suitable for both home installations and more demanding industrial applications. Its compact dimensions (18 mm width, 90 mm height and 65 mm depth) allow for easy mounting on a DIN rail, and the universal supply voltage (24V AC/DC – 240V AC) ensures flexibility of use.

Functionality and application

This relay is used to monitor current in various systems, such as heating, motor control or power consumption signaling. Thanks to the measurement range of 0.5…5A, it is ideal for monitoring medium-power loads. The ability to extend the measurement range to 600A using a current transformer increases its versatility. Adjustable time delay (0.5…10 s) allows for precise adjustment of the relay's operation to specific application needs.

Design and characteristic features

The PRI-51/5 relay has one changeover contact with a load capacity of 8A, which allows you to control other devices based on the measured current value. Screw terminals provide quick and secure connection of wires. The device is made in a modular housing (1 module), which facilitates integration with other elements of the electrical installation. Power supply galvanically isolated from the measured current increases safety of use. This protects the relay from interference and the influence of voltage in the measurement circuit.

• Wide range of applications: ideal for heating systems, motor control, power consumption signaling and as a priority relay.
• Flexibility: possibility of extending the measurement range to 600A using a current transformer.
• Precision: adjustable time delay allows you to adapt the operation to specific application needs.
• Safety: galvanic isolation of the power supply from the measured current minimizes the risk of interference and damage.
• Easy installation: compact dimensions and DIN rail mounting facilitate installation.
• Reliable connections: screw terminals provide quick and stable connection of electrical wires.