Crouzet 3 Phase Monitoring Relay 183 - 484 VAC/VDC, DPDT, DIN Rail, 5A, Terminal Block, IP30/IP20, 250V ac/dc, Model 84873021

The Crouzet 84873021 Monitoring Relay is designed for precise monitoring and protection of motors and equipment connected to 3-phase electrical systems. This relay operates across a wide voltage range of 183 to 484 VAC/VDC, offering flexible compatibility with a variety of industrial and commercial electricity networks.

Utilizing a DPDT (double pole double throw) contact configuration, this relay ensures effective switching and circuit management, critical in phase control and equipment protection. Its DIN rail mount allows straightforward integration into electrical cabinets and automation panels, expediting installation and maintenance processes.

The relay features a robust terminal block connection, supporting quick and secure wiring. Its electrical specifications include a supply AC voltage of 208V and 440V ac, and a switching voltage of up to 250V ac/dc, with a contact current rating of 5A. The design incorporates an IP30/IP20 housing, providing basic protection against dust and accidental contacts for industrial control applications.

Equipped with advanced phase sequence and failure detection, the Crouzet MWS2 Series monitoring relay protects motors and other equipment from damage caused by phase loss, reversal, or imbalance. Typical applications include heating, air conditioning, water and air treatment, waste treatment, and medical equipment, ensuring safe operation and minimizing downtime in critical processes.

The relay also supports features such as true RMS measurement for accurate voltage evaluation and LED status indication for easy monitoring of system state. With its compact form factor (92.6mm height, 69mm length, 17.5mm width), it is well-suited for space-constrained panels and industrial environments.

The Crouzet Monitoring Relay 84873021 is fully compliant with relevant standards and approvals, including RoHS, IEC/EN 61000-6-3, CE, IEC/EN 50178, GL, UL, CSA, IEC/EN 61000-6-2, and WEEE, underscoring its suitability for professional and regulated industrial installations.

This product is ideal for industrial automation, manufacturing, HVAC, water treatment, medical, and commercial facility applications where reliable phase monitoring and equipment protection is critical. Explore more monitoring relays and automation solutions in the Electronics & Electricals > Relays & Contactors > Monitoring Relay category at EnvMart.