Schneider Electric Monitoring Relay 3 Phase 380/480V AC DPDT DIN Rail RM22TR33

The Schneider Electric RM22TR33 is a robust monitoring relay designed for industrial and commercial three-phase AC applications. This relay is essential for electrical systems where reliable detection of voltage anomalies such as phase loss, under-voltage, or over-voltage is required for operational safety and system integrity. The RM22TR33 model supports a monitoring voltage range of 380 to 480V AC, making it compatible with standard three-phase power distribution found in modern manufacturing, process automation, building electrical infrastructures, and facility management.

Featuring a DPDT (Double Pole Double Throw) contact configuration, this monitoring relay provides versatile switching options for protection or automation tasks. The relay is engineered to mount securely onto DIN rails, ensuring ease of installation within electrical enclosures and panels. Its compact body, measuring 22.9mm in length, 79.5mm in width, and 90mm in height, is suitable for space-constrained control cabinets while still providing reliable mechanical stability.

The RM22TR33 uses screw terminal connections, facilitating secure wiring and long-term serviceability. Electrical performance is rated for a maximum switching voltage of 250V AC and a contact current of up to 8A, making it suitable for direct control of contactors and safety mechanisms in high-power circuits. Additionally, the device offers a power consumption of just 15VA, ensuring low impact on energy efficiency for complex systems.

This monitoring relay is designed for robust operation under a wide temperature range (-20°C to +60°C), and is protected to IP50, IP40, and IP20 standards depending on enclosure or orientation, offering resilience against dust and ingress within industrial electrical settings. It supports up to 100,000 cycles of reliable switching, further supporting long-term, maintenance-free operation. The time delay feature provides precise control over monitoring parameters, supporting various system integration requirements.

It meets critical international standards such as IEC 60068-2-27, IEC 60068-2-6, IEC 60255-27, RoHS, and REACH, ensuring suitability for demanding automation, manufacturing, HVAC, and facility protection projects. Typical use cases include voltage monitoring for industrial motors, pumps, fans, building power circuits, and any automation sequence that depends on precise phase and voltage control for safety.

The Schneider Electric RM22TR33 forms part of the Harmony Control series, a trusted range for industrial monitoring. It is widely used by electrical panels integrators, plant maintenance professionals, and OEMs for generator systems, production lines, and utility distribution boards. With its Indonesian-manufactured quality and strong compliance with control standards, it is an ideal choice for engineered system upgrades or new industrial builds requiring precise voltage supervision and relay protection.

For additional technical information or for compatible accessories, users may explore product resources in the Monitoring Relays category on EnvMart.