Square D HGA36015 Molded Case Circuit Breaker 15A 600V 3P

Product Description

The SQUARE D HGA36015 is a three-pole, plug-in molded case circuit breaker rated at 15 amps and 600 VAC. It uses a thermal-magnetic trip mechanism to provide reliable overcurrent and short-circuit protection in commercial and industrial power distribution panels. The breaker accepts wire sizes from 14 AWG to 3/0 AWG and connects via an I-Line lug terminal, making it compatible with Square D I-Line panelboards and switchboards. At 5.81 pounds, it is a solid-construction unit intended for installation by licensed electricians working on three-phase distribution systems. Multiple breaking capacity ratings extend its usability across a range of fault-current environments.

This circuit breaker is suited for commercial and light industrial applications where three-phase, 600-volt distribution is required. Typical installations include motor branch circuits, feeder protection, and panel subfeed applications in facilities such as manufacturing plants, commercial buildings, and data centers. The plug-in I-Line mount design allows for straightforward installation and removal within compatible Square D I-Line panelboards without additional hardware. Electricians working on panel upgrades, service replacements, or new construction will find the lug terminal connection accommodates a wide conductor range.

Key Features

• Thermal-magnetic trip mechanism provides both overload and short-circuit protection
• Rated 15 amps at 600 VAC for three-phase distribution applications
• Three-pole configuration protects all phases simultaneously
• Plug-in I-Line mount for fast installation in compatible panelboards
• Wide conductor range: 14 AWG to 3/0 AWG via I-Line lug terminals
• Multiple breaking capacity ratings for use in varied fault-current environments
• RoHS compliant construction

Compatibility

Designed for use with Square D I-Line Series panelboards and switchboards. The plug-in I-Line terminal connection is specific to I-Line-style enclosures and is not interchangeable with standard bolt-on or other mounting configurations.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lockout/tagout the panelboard before installing or removing the breaker. Verify that the panel bus and enclosure are rated for I-Line plug-in breakers prior to installation. Confirm conductor sizing and termination torque requirements against the panel manufacturer specifications and NEC Table 310 guidelines before energizing.