The Square D S33663 Shunt Trip is a circuit breaker accessory designed to remotely trip PowerPact molded case circuit breakers. Manufactured by Schneider Electric under the Square D brand, this device enables external electrical control of breaker operation, allowing the breaker to be opened automatically when a control signal is applied. It is commonly used in safety systems, emergency shutdown circuits, and building automation applications.

Electrical Ratings

• Voltage Rating: 208/277 V AC
• Type: Shunt Trip Device

Key Specifications

• Brand: Square D / PowerPact
• Manufacturer: Schneider Electric
• Model Number: S33663
• Product Type: Circuit Breaker Accessory
• Sub-Category: Shunt Trip Release
• Series: S Series
• Application: Remote breaker tripping and control

Compatibility

• Frame Types Supported:
  • MG, MJ, PG, PJ, PK, PL
  • RG, RJ, RK, RL
• Designed for use with PowerPact molded case circuit breaker frame types

Technical Details

• Function: Electrically trips breaker when control voltage is applied
• Enables remote shutdown and safety interlocking
• Used in emergency stop systems and automated control systems
• Integrates directly into compatible breaker assemblies

Features and Benefits

• Provides reliable remote tripping capability for safety and control systems.
• Supports emergency shutdown and interlock functionality.
• Compatible with multiple PowerPact MCCB frame sizes.
• Compact accessory design integrates seamlessly into breaker units.
• Enhances operational safety in industrial and commercial installations.
• Suitable for automation and building management systems.

Applications

• Industrial Power Distribution Systems
• Commercial Electrical Panels
• Emergency Shutdown Systems (E-Stop)
• Motor Control Centers
• Building Automation Systems
• PowerPact MCCB Assemblies
• Safety Interlocking and Control Circuits

Compliance

• Designed for use with IEC and UL approved breaker systems.
• Suitable for industrial and commercial electrical safety applications.