Square D 9421LC46 Circuit Breaker Handle Assembly

Product Description

The SQUARE D 9421LC46 is a replacement handle assembly designed for use with PowerPact H and J Frame circuit breakers. The handle assembly provides the mechanical interface between the operator and the breaker, allowing controlled switching and reset operations in panelboard and switchboard applications. It is a direct OEM-style accessory intended for installation by licensed electricians performing panel maintenance, equipment upgrades, or breaker replacement in commercial and industrial electrical distribution systems.

This handle assembly is compatible with PowerPact H Frame and J Frame circuit breakers and is specified for use with 9421LG7, LF1, LK1, LJ7, or LL1 operating mechanisms. It is suited for commercial and industrial installations where breaker operator components require periodic replacement due to wear, mechanical failure, or system reconfiguration. Electricians performing scheduled maintenance or field repairs on SQUARE D switchgear will find this part a direct fit for the listed mechanism types.

Key Features

• Designed for use with 9421LG7, LF1, LK1, LJ7, and LL1 operating mechanisms
• Compatible with PowerPact H Frame and J Frame circuit breakers
• OEM-style replacement restores proper mechanical switching function
• Compact form factor fits standard panelboard and switchboard enclosures
• Single-unit packaging for direct one-for-one replacement

Compatibility

Designed for use with SQUARE D PowerPact H Frame and J Frame circuit breakers equipped with 9421LG7, LF1, LK1, LJ7, or LL1 operating mechanisms.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit breaker and upstream supply before removing or installing any handle assembly components. Verify mechanism type compatibility before installation to ensure proper fit and safe operation. Do not attempt to install this assembly while the breaker or associated bus is live.