Square D EDB14020EPD Molded Case Circuit Breaker 20A 277V

Product Description

The SQUARE D EDB14020EPD is a single-pole molded case circuit breaker rated at 20 amps and 277 volts AC. It uses a thermal-magnetic trip mechanism, which responds to both sustained overloads and short-circuit faults, providing reliable branch-circuit protection. The breaker is designed for panel mount installation and connects via lug terminals. Toggling the reset actuator manually restores the breaker after a trip event. Electricians install this device in commercial and industrial panelboards where 277-volt single-phase circuits are common, such as lighting branch circuits in office buildings, warehouses, and retail spaces.

This breaker is suited for commercial and light-industrial electrical distribution systems where 277-volt branch circuit protection is required. Wire range accepts 12 to 4 AWG aluminum conductors and 14 to 6 AWG copper conductors, covering a wide range of branch circuit configurations. It is designed for flush panel mounting and integrates into standard molded case breaker panelboards used in building electrical systems.

Key Features

• Thermal-magnetic trip mechanism provides overload and short-circuit protection
• Single-pole, 20-amp, 277-volt AC rating for commercial lighting and branch circuits
• Lug terminal connections accept 12-4 AWG aluminum or 14-6 AWG copper conductors
• Toggle-style reset actuator for manual reset after trip event
• Panel mount design for integration into standard molded case panelboards

Compatibility

Designed as an OEM-style replacement molded case circuit breaker for commercial and industrial panelboards rated for 277-volt single-pole branch circuit applications.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the panelboard and verify zero voltage with a meter before handling or connecting conductors. Ensure conductor wire gauge is within the rated range for the terminal lugs before tightening. Do not exceed the breaker's rated ampacity when sizing the protected circuit.