Square D Multi 9 Shunt Trip Release with OC Contact (MX + OF)
The Square D (Schneider Electric) Multi 9 shunt trip release (Model M9A26947) is a combination accessory that integrates a shunt trip release (MX) and an auxiliary contact with overcurrent indication (OF) in a single unit. This accessory enables remote tripping of the circuit breaker via an electrical signal at 48V AC or 48V DC, while the OF contact provides status feedback for monitoring and interlocking applications.
Key Features
- Combined MX shunt trip release and OF auxiliary contact in one accessory
- Allows remote tripping of the circuit breaker via 48V AC or 48V DC control signal
- OF contact provides open/closed status feedback for monitoring and control systems
- Compatible with Square D Multi 9 series circuit breakers
Specifications
- Model: M9A26947
- Manufacturer: Square D (Schneider Electric)
- Function: Shunt Trip Release (MX) + Auxiliary Contact with OC Contact (OF)
- Control Voltage: 48V AC / 48V DC
Applications
Used with Square D Multi 9 circuit breakers in applications requiring remote tripping from a control system, emergency stop circuit, or fire alarm panel. The combined MX + OF configuration simplifies panel wiring for systems where both remote trip and breaker status monitoring are needed.



