Siemens Phase Monitoring Relay, 3 Phase, DPDT, Snap-On Rail Mount

This monitoring relay is designed for phase sequence monitoring in three-phase systems, operating at 420 to 690V AC. Its compact dimensions of 92mm in height, 22.5mm in width, and 91mm in length make it suitable for installation in confined spaces. With a robust operational temperature range of -25°C to +60°C, it is engineered for industrial reliability.

• Phase sequence recognition enhances system reliability
• Double pole, double throw (DPDT) contact configuration for flexible connections
• Overvoltage sensitivity protects against electrical faults
• Snap-on rail mounting simplifies installation and maintenance
• Long mechanical service life ensures reduced downtime
• CE certified for compliance with relevant safety standards

• Used with three-phase motors for fault detection
• Ideal for industrial automation and electrical control systems
• Employed in machinery requiring phase monitoring
• Suitable for in harsh working environments

The device has a surge voltage resistance rated at 6 kV, ensuring it can handle transient voltage spikes, thereby protecting both the relay and connected equipment.

This relay has a protection class of IP20, which indicates that it is suitable for use in environments where it will not be exposed to moisture or significant dust ingress.

The relay features screw-type terminals that can accommodate solid conductors from 0.5 to 4.0 mm² and finely stranded conductors up to 2.5 mm², facilitating secure and versatile wiring options.

Whilst it provides overvoltage protection, it is specifically designed for phase sequence recognition and does not have functionality for general overvoltage detection on its own.