Eaton sqd-qo240 Miniature Circuit Breaker 40A 2P 120/240V

Product Description

The EATON sqd-qo240 is a 2-pole miniature circuit breaker rated for 40 amps at 120/240 volts with a 10 kA interrupting capacity. It provides overcurrent and short-circuit protection for branch circuits in residential and light commercial electrical panels. The breaker is designed for fast-trip response, helping to limit damage to downstream wiring and connected equipment during fault conditions. Licensed electricians install this breaker as part of a panelboard assembly or as a replacement for a failed or undersized breaker in an existing loadcenter.

This circuit breaker is suited for 120/240-volt single-phase applications commonly found in residential service panels and small commercial distribution boards. It fits branch circuit positions requiring a 2-pole, 40-amp breaker for loads such as electric dryers, water heaters, HVAC disconnect circuits, or subpanel feeds. The 10 kA interrupting rating meets typical fault-current levels found on residential services.

Key Features

• 40-amp continuous current rating for branch circuit protection
• 2-pole configuration handles 240-volt single-phase loads
• 10 kA interrupting capacity suitable for residential and light commercial services
• Fast-trip mechanism responds quickly to overload and short-circuit conditions
• Compact miniature breaker form factor fits standard loadcenter slots

Compatibility

Designed as an OEM-style replacement miniature circuit breaker for standard residential and light commercial loadcenters accepting 2-pole QO-series style breakers.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Always de-energize the panel and verify with a meter that all conductors are dead before handling any breaker or bus connection. Do not exceed the breaker's rated ampacity or interrupt rating for the intended circuit. Confirm the loadcenter is rated to accept the breaker form factor before installation.

Technical Specifications

• Current Rating: 40 amps
• Poles: 2
• Voltage Rating: 120/240 volts
• Interrupting Capacity: 10 kA
• UNSPSC Code: 39121601

Standard Information

• Brand: EATON
• Manufacturer Part Number: sqd-qo240