Siemens 49GGF22H Horizontal Interlock

Product Description

The SIEMENS 49GGF22H is a horizontal interlock designed for use in electrical panelboard and loadcenter applications. This interlock mechanism physically prevents two breakers from being in the on position simultaneously, a critical safety feature in transfer switch and dual-feed configurations. Licensed electricians and panel technicians install this component when code-compliant interlocking is required between main and generator or utility feed breakers. The 49GGF22H ships at 0.11 pounds, making it a lightweight hardware addition to the panel assembly.

The 49GGF22H is suited for residential and light commercial electrical panels where a horizontal interlock arrangement is needed. It is typically installed as part of a generator backfeed setup or a dual-source power configuration, ensuring that only one power source feeds the panel at any given time. This prevents dangerous back-feeding onto utility lines and protects personnel working on the grid.

Key Features

• Horizontal mounting orientation for compatible panelboard configurations
• Mechanically prevents simultaneous engagement of two circuit breakers
• Lightweight at 0.11 pounds for easy panel installation
• Supports code-compliant generator interlock installations
• OEM SIEMENS part for assured fit within compatible panel enclosures

Compatibility

Designed as an OEM-style horizontal interlock for compatible SIEMENS panelboard and loadcenter assemblies. Refer to the panel documentation or SIEMENS interlock selection guide to confirm fitment for your specific enclosure model before ordering.

Installation Notes

Installation must be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize the panel and verify absence of voltage before beginning work. Follow the panelboard manufacturer instructions for proper breaker slot positioning and interlock alignment. Do not modify or bend the interlock mechanism, as deformation can compromise the mechanical lockout function.

Technical Specifications

• Mounting Orientation: Horizontal
• Package Weight: 0.11 pounds
• Package Dimensions (L x W x H): 14.3 inches x 10.5 inches x 1.6 inches
• UPC: 78308708840

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 49GGF22H