Shunt release mount. AC 110-415V

The Siemens 5ST3030 is a high-performance auxiliary contact block designed to expand the signalling capabilities of Miniature Circuit Breakers (MCBs) and Residual Current Circuit Breakers (RCCBs). This snap-on component provides real-time feedback on the primary protective device's switching status, enabling seamless integration with remote monitoring and automation systems. Engineered for precision and reliability, the 5ST3030 is a vital accessory for modern electrical panels requiring detailed status diagnostics and fault reporting.

Reasons You Should Use the Product

This Siemens 5ST3030 auxiliary contact enhances system transparency and safety by integrating remote signalling that immediately alerts operators to circuit breaker status changes.

• Snap-on mounting enables quick, tool-free installation.
• Compact width saves valuable space in electrical distribution boards.
• High contact reliability ensures accurate signalling for automation.

Core Performance Features & Key Uses

The primary function of this auxiliary switch is to indicate the "ON" or "OFF" position of the main breaker to a control system or indicator lamp. It is commonly used in building management systems, motor control centres, and industrial automation cabinets to trigger alarms or logic sequences based on breaker trips.

• Technical Specifications
• Contact Configuration: 1 NO + 1 NC.
• Current Rating: 6A at 230V AC.
• Module Width: 0.5 MW (approx. 9mm).
• Compatibility: Siemens 5SY, 5SP, and 5SL series.
• Connection Type: Screw terminals.
• Suitable Environments
• Commercial office electrical distribution boards.
• Industrial control panels and automation racks.
• Residential consumer units for smart home feedback.

For more information please check the datasheets.