Siemens Monitoring Relay, 1 Phase, DPDT, 230V ac

This monitoring relay is a modular residual current device designed for single-phase AC systems to detect residual currents and provide timed switching. It operates from a nominal 230V AC supply within a broad input range and includes adjustable response delay to manage transient conditions. The unit incorporates an LCD for status indication and stores fault events for diagnostic purposes, while protective ratings suit enclosed electrical panels.

• Time delay adjustable 0.06 to 10 s to manage transient trips
• Relay contacts switch up to 250 V allowing standard load control
• Relay contact current 5 A enabling moderate load switching
• Power consumption 6.5 VA reducing panel thermal load
• IP20 protection at connections for enclosed installations

• Suitable for monitoring DC components up to 2000 Hz harmonics
• Used with summation CTs for residual current detection
• Ideal for single-phase protection in distribution panels
• Can be used for alarm signalling via auxiliary contacts
• Used for installations requiring password-protected settings

The measuring circuit covers 0 to 2000 Hz to detect higher-frequency residual currents.

Flexible conductors from 0.2 mm² to 2.5 mm² and solid conductors from 0.2 mm² to 4 mm² are accommodated.

It fastens to a DIN rail and uses screw terminals for electrical connection.

Ambient temperatures between -25 °C and 55 °C apply for both operation and storage with up to 95% relative humidity.

It offers residual current readout on the display, fault memory and password protection.