Siemens 3RB Overload Relay 1NC + 1NO, 12 A F.L.C, 12 A Contact Rating, 7.5 kW, 690 Vac, TP, SIRIUS | 3RB3123-4SE0

Description

The Siemens 3RB3123-4SE0 is a high-performance SIRIUS overload relay, essential for protecting electric motors from damage due to overcurrent conditions. This industrial-grade relay is designed for 690 Vac operation and features a 12A full load current (FLC) setting range, with a 12A contact rating. It includes one normally closed (NC) and one normally open (NO) auxiliary contact, providing flexible signaling capabilities for control circuits.

This Siemens overload relay is crucial for preventing motor burnout caused by overloads, phase failures, or unbalanced currents. Its precise tripping mechanism ensures that the motor is safely disconnected from power when critical current thresholds are exceeded, thereby extending motor life and minimizing downtime. The robust construction of the Siemens 3RB3123-4SE0 guarantees reliability.

Ideal for applications up to 7.5 kW, this relay integrates seamlessly with Siemens contactors, forming a complete motor protection solution. The 1NC + 1NO auxiliary contacts can be used for signaling motor status to control systems or for interlocking purposes. The SIRIUS series is known for its compact design and ease of installation.

Choose the Siemens 3RB3123-4SE0 for dependable and advanced motor protection. It’s a vital component for ensuring the operational integrity and longevity of your industrial motors, providing peace of mind and robust safety.