Siemens LBRA25D Auxiliary Switch 1NO/1NC 25A

Product Description

The SIEMENS LBRA25D is an auxiliary switch accessory rated for 1 normally open and 1 normally closed (1NO/1NC) contact configuration at 25 amps. It mounts to compatible Siemens circuit breakers to provide status signaling or interlocking functions within electrical panels and distribution equipment. The switch allows downstream control systems, annunciators, or PLCs to monitor breaker position — open or closed — without direct interaction with the primary circuit. Licensed electricians install this accessory during panel builds or service upgrades where remote status indication or load-shedding logic is required.

The LBRA25D is suited for residential and light commercial electrical distribution applications. It is used wherever breaker position feedback is needed, such as in building automation systems, generator transfer schemes, or alarm annunciation panels. Installation typically occurs at the time of breaker installation or during a planned panel outage. The compact form factor fits within standard enclosure dimensions without requiring additional space allocation.

Key Features

• 1NO/1NC contact configuration for simultaneous open and closed status signaling
• 25-amp rating suitable for standard branch-circuit breaker accessory applications
• Compact dimensions allow installation in tight panel spaces
• Designed to mount directly to compatible Siemens breakers without additional hardware
• Lightweight construction at 0.044 pounds minimizes added load on breaker assembly

Compatibility

Designed as an OEM-style auxiliary switch accessory for compatible Siemens circuit breakers requiring 1NO/1NC status contact functionality. Consult Siemens breaker documentation to confirm fitment for a specific breaker model before installation.

Installation Notes

Installation of the LBRA25D should be performed by a qualified electrician in accordance with NEC requirements and the authority having jurisdiction. De-energize the panel and verify absence of voltage before attaching any breaker accessory. Follow the breaker manufacturer's mounting instructions for proper accessory seating. Do not exceed the auxiliary switch contact rating when wiring to control or signaling circuits.

Technical Specifications

• Contact Configuration: 1NO/1NC
• Amperage Rating: 25 amps
• Length: 2.756 inches
• Width: 1.969 inches
• Height: 0.787 inches
• Weight: 0.044 pounds
• UPC: 78364313625

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: LBRA25D