SCHNEIDER 33878 Circuit Breaker Accessory (Extended Rotary Handle)

Product Overview

The SCHNEIDER 33878 is a ComPacT NS circuit breaker extended rotary handle accessory designed for Schneider Electric NS630b to NS1600 series circuit breakers. It allows operators to manually operate the circuit breaker from the front of the electrical cabinet when the breaker is installed inside a switchboard enclosure.

This accessory improves operation safety and convenience by providing external front-panel control while maintaining enclosure protection.

Technical Specifications

• Brand: SCHNEIDER ELECTRIC
• Model: 33878
• Product Type: Circuit Breaker Accessory
• Accessory Type: Extended Rotary Handle
• Compatible Series: ComPacT NS630b…NS1600
• Operation Type: Front rotary operation
• Handle Color: Black
• Mounting Type: Extended mounting / front control
• Protection Rating: IP55
• Impact Resistance: IK08
• Locking Function: OFF position lockable
• Padlock Compatibility: 1 to 3 padlocks
• Application: Remote manual operation of MCCB

Advantages & Features

• Original Schneider Electric ComPacT NS accessory
• Enables front operation of internally installed circuit breakers
• Improves operator safety by avoiding direct access to the breaker body
• Supports lockout/tagout safety procedures
• IP55 protection suitable for industrial cabinets
• Strong mechanical design for frequent operation
• Easy installation with Schneider NS series breakers
• Suitable for power distribution applications

Applications

• Industrial electrical switchboards
• Power distribution cabinets
• Motor control centers (MCC)
• Factory automation systems
• Data center power systems
• Commercial building electrical panels
• Energy management systems
• High-current MCCB installations

Precautions

• Confirm compatibility with the specific Schneider ComPacT NS breaker model before installation
• Ensure correct mounting position and shaft length
• Disconnect power before installation or maintenance
• Check handle operation after installation
• Ensure locking function works correctly if used for safety isolation
• Installation should follow Schneider Electric instructions