Square D Mechanical Generator Interlock Kit for Exterior Panels

Square D Mechanical Generator Interlock Kit for Exterior Panels

The HOMRBGK2C Square D Homeline Mechanical Generator Interlock Kit for Exterior Panels is a manual transfer interlock designed to help safely switch a Homeline generator load center from utility power to generator power by mechanically preventing the main breaker and generator backfeed breaker from being ON at the same time. It’s built for specific Homeline generator load centers and interlocks a QOM2 two-pole main breaker (150A–225A) with a Homeline two-pole branch breaker (15A–125A), making it a practical solution for manual generator connections on approved panels.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: HOMRBGK2C
• Brand / Trade Name: Square D Homeline
• Product Type: Mechanical generator interlock kit
• Intended Use: Manual transfer from utility to generator power (interlock function)
• Compatible Load Centers: “S2” and “S3” series NEMA 1, and “S1” series NEMA 3R Homeline generator load centers
• Interlock Pairing:
  • Main Breaker: QOM2 two-pole main (for load centers 150A–225A)
  • Generator / Backfeed Breaker: Homeline two-pole branch breaker (15A–125A)
• Number of Poles: 2
• Rated Current: 15–125A (branch) / 150–225A (main)
• Interlock Kit Max Dimensions (as stated): 2.56" H × 4.07" W × 0.9" D
• Packaged Dimensions (as listed): 5" H × 7.3" W × 1.7" D
• Tightening Torque: 4 N·m
• Packaging: Consumer packaging

Ideal For

• Homeowners and electricians needing a manual generator interlock on approved Homeline generator load centers
• Exterior applications using NEMA 3R Homeline generator panels (where compatible)
• Systems using a QOM2 2-pole main (150–225A) with a Homeline 2-pole generator breaker (15–125A)
• Adding a mechanical method to help prevent simultaneous utility and generator backfeed on compatible panels