Siemens RHOFBO Fd Frame Rotary Handle Accessory

Product Description

The SIEMENS RHOFBO is a rotary handle accessory designed for use with FD frame molded case circuit breakers. This operator handle mounts to the breaker and allows manual operation of the breaker mechanism from outside an enclosure door, enabling safe switching without direct contact with live internal components. Electricians and panel builders install this type of accessory during switchboard, panelboard, and industrial control panel assembly. It provides a mechanical interface between the breaker toggle and an external rotary knob, supporting lockout and on/off operation at the enclosure face.

This rotary handle is suited for commercial and industrial electrical installations where FD frame breakers are deployed in enclosed switchgear, motor control centers, or distribution panels. It is typically installed during new panel construction or when upgrading an existing enclosure to add door-mounted operator capability. The accessory supports safe maintenance access by allowing the breaker to be operated without opening the enclosure door.

Key Features

• Rotary handle design for door-mounted breaker operation
• Compatible with FD frame molded case circuit breakers
• Supports lockout capability for electrical safety and LOTO compliance
• Allows breaker switching without direct access to live components
• Designed for use in enclosed panelboard and switchgear assemblies

Compatibility

Designed as an OEM-style accessory for SIEMENS FD frame molded case circuit breakers installed in enclosed panelboard and switchgear assemblies.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before beginning any breaker or enclosure work. Follow the manufacturer mounting instructions to ensure proper alignment between the rotary handle mechanism and the breaker toggle. Do not operate the breaker under load unless the assembly is confirmed fully rated for switching duty.

Technical Specifications

• Weight: 1.199 pounds
• UPC: 78364320511

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: RHOFBO