Siemens 3RP1576-1NM20 Star-Delta timer

The Siemens 3RP1576-1NM20 is a Star-Delta timer relay from the 3RP15 timing relay series, designed for motor control and automation applications requiring precise and reliable timing operations. It automates star-delta motor starting sequences, ensuring smooth acceleration, reduced inrush current, and protection for motors and connected equipment.

This electronic timer relay provides adjustable time delay settings, wide voltage compatibility, and DIN-rail mount design for easy installation. With its robust Siemens engineering, it delivers long service life, consistent timing accuracy, and high reliability even in industrial environments.

Key Features:

• Function: Star-Delta (wye-delta) transition timer

• Series: Siemens 3RP15

• Rated Control Supply Voltage (AC/DC): 24–240V AC/DC

• Output Contacts: 2 changeover (DPDT) contacts

• Time Delay Range: 0.05 s – 1000 s (adjustable)

• Operating Mode: Star to Delta transition control

• Mounting Type: DIN-rail (35mm)

• LED Status Indicators: For Power and Timing States

• High Switching Capacity and Reliability

• Compact Design: Saves panel space

• Ambient Operating Temperature: –25°C to +60°C