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Square D QO325 three-pole breaker, grey plastic body with black paddle actuator

SQUARE D

SQUARE D QO325 circuit breaker 25A 3 pole 120/240V AC

SKU CH-525C-JNRT6

Three-pole miniature circuit breaker rated 25 A at 120/240 V AC with 10 kA interrupting capacity for QO load centres

  • 25 A rating protects 120/240 V AC three-phase circuits
  • 10 kA interrupting rating clears faults safely
  • Plug-in mounting fits QO load centres and NQ panelboards
  • 48 V DC rating adds low-voltage versatility
  • Pressure-plate terminals secure conductors without special tools

Square D QO325 circuit breaker 25 A 3 pole

This Square D QO325 miniature circuit breaker provides 25 A overcurrent protection across three poles at 120/240 V AC. It is built for QO load centres and NQ panelboards with a plug-in mounting style and a 10 kA interrupting rating.

Suits three-phase 25 A branch circuits.

Electricians wiring 25 A three-phase branch circuits in compatible QO or NQ equipment will find this breaker a direct fit. Installations that require a larger frame size, a different interrupting rating, or a non-QO panelboard should select another device.

10 kA interrupting rating at 120/240 V AC

The breaker carries a maximum AIR rating of 10 kA at 120/240 V AC, which determines whether it can safely clear a fault on the intended circuit. Verify that the available fault current at the installation point does not exceed this value before specifying the device.

How it compares

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Price $87.99
Pricier than about 65% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSQUARE D

Questions about this item

What panelboard series does the QO325 plug into?

The QO325 is compatible with QO load centers and NQ panelboards.

Which terminal connection method does the 25 A breaker use?

Pressure-plate terminals accept the conductors; tighten each screw to the listed torque.

How often should the 10 kA AIR breaker be inspected or replaced?

Trip-test the device annually and replace it if it fails to trip or shows contact wear.

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