Square D Multi 9 Undervoltage Release – MN, 48V AC/DC
The Square D (Schneider Electric) Multi 9 undervoltage release (Model M9A26961) is an MN-type accessory designed to automatically trip the circuit breaker when the control supply voltage falls below the required threshold. Compatible with both 48V AC and 48V DC control circuits, it provides automatic protection against undervoltage conditions for connected loads.
Key Features
- Undervoltage release (MN type) trips the breaker on power loss or undervoltage
- Compatible with 48V AC and 48V DC control circuits
- Designed for use with Square D Multi 9 series circuit breakers
- Provides automatic protection against low-voltage operating conditions
Specifications
- Model: M9A26961
- Manufacturer: Square D (Schneider Electric)
- Type: MN (Undervoltage Release)
- Control Voltage: 48V AC / 48V DC
Applications
Suitable for industrial control panels, motor control centers, and commercial switchboards where automatic circuit disconnection upon loss of control voltage is required. Commonly used to protect processes and equipment that must not operate under undervoltage conditions, or to ensure automatic shutdown during power failures.




