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Compact beige plastic two-pole breaker with black toggle switch and slotted box lug terminals

SQUARE D

SQUARE D QOU210 Miniature Circuit Breaker 10A 2 Pole 120/240V AC

SKU CH-R809-AYK6P

Protects circuits up to 10 A at 120/240 V AC with a 10 kA interrupting rating in a two-pole QO-series frame

  • 10 A protection for 120/240 V AC circuits
  • 2-pole design handles single-phase loads
  • 10 kA interrupting rating at 120/240 V AC
  • 48 V DC rating adds low-voltage versatility
  • Slotted box lugs accept reversible line and load wires

Circuit Protection for QO Panels

The SQUARE D QOU210 is a 10 A miniature circuit breaker built for QO series load centres. It handles single-phase 120/240 V AC supplies and carries a 10 kA interrupting rating at that voltage. The two-pole toggle design also supports 48 V DC circuits. It is intended for air-conditioning, refrigeration and heating equipment.

Two-Pole DIN-Rail Mount with Reversible Lugs

The breaker clips onto DIN rail or surface-mount bases, fitting standard QO panelboards without modification. Slotted box lugs accept line or load conductors in either orientation, simplifying wiring routing. A 100 A frame size means the device occupies the same footprint as other QOU units, leaving adjacent pole spaces unaffected.

For 10 A Branch Circuits in QO Systems

Electricians protecting 10 A branch circuits in QO load centres will find the correct ratings and mounting style here. Installers needing a different amperage, a three-pole configuration or a non-QO panelboard should select another model. The 48 V DC rating does not replace a dedicated DC breaker for higher-voltage battery banks.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 57% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSQUARE D

Questions about this item

What is the maximum AIR rating of the 10 A QOU breaker at 120/240 V AC?

The breaker has a maximum AIR rating of 10 kA at 120/240 V AC, limiting the fault current it can safely interrupt under sustained heavy load.

How much heat does the 10 A two-pole QOU breaker dissipate when running continuously?

Continuous operation at 10 A generates typical thermal-magnetic breaker warmth; the 100 A frame size provides ample thermal margin for all-day use in a QO load centre.

Which load-centre series must already be installed for this QOU210 breaker to mount correctly?

The breaker is compatible only with Square D QO panelboard or load-centre series; it mounts on surface or DIN rail within that system.

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