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Transparent IEC miniature circuit breaker toggle switch DIN rail mount

Dayton

Dayton 33V956 IEC Miniature Circuit Breaker 25A 1 Pole

SKU CH-XCT7-Q9XFB

Single-pole IEC breaker rated 25 A, 120 V AC with 10 kA interrupting capacity and DIN-rail mounting

  • Product colorTransparent
  • Reliable overload protection with 25 A thermal-magnetic trip
  • High interrupting capacity handles 10 kA at 120 V AC
  • Space-saving 0.71 in width fits tight DIN-rail panels
  • Flexible wiring accepts 14 AWG to 2 AWG conductors
  • Certified safety meets UL 489 and CE standards

Circuit Breaker for HVAC Control

The Dayton 33V956 is a single-pole IEC miniature circuit breaker rated at 25 amps for HVAC control applications. It uses a thermal-magnetic trip mechanism with a D-curve characteristic. The unit is UL 489 listed and CE marked for use in US and Canadian installations. It mounts on a standard DIN rail.

DIN Rail Mounting and Wire Range

The breaker installs directly onto a DIN rail using a toggle actuator for manual operation. It accepts copper conductors from 14 AWG up to 2 AWG via lug terminals. The frame size is 32A within the NDB2T-63 series. A transparent housing allows visual inspection of the internal mechanism and contact status.

Electrical Ratings and Interrupting Capacity

The device carries a 120V AC and 60V DC voltage rating with a maximum interrupting rating of 10kA at 120V AC. Thermal-magnetic operation provides overload and short-circuit protection for single-phase circuits. California Proposition 65 warnings apply for chemicals known to cause cancer and reproductive harm. The body measures 4.6 inches long by 0.71 inches wide by 3 inches deep.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 74% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameDAYTON
Product colorTransparent

Questions about this item

What is the maximum continuous current before the 25 A thermal-magnetic trip activates?

The breaker is rated for 25 A continuous; the thermal-magnetic mechanism trips on sustained overloads above that level.

How much heat does the breaker dissipate when carrying full load all day?

At 25 A the device runs warm but stays within UL 489 temperature-rise limits; no forced-air cooling is required in a ventilated enclosure.

What wire gauge and mounting hardware are needed to install this breaker?

Use 14 AWG to 2 AWG copper wire with the lug terminals; the housing clips onto standard DIN rail for panel mounting.

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