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Molded case circuit breaker, grey enclosure, three poles, front terminals visible

SQUARE D

SQUARE D HDL36030 POWERPACT H 30A 3 Pole Circuit Breaker

SKU CH-TXFF-M75GN

Three-pole molded-case breaker rated 30 A at 600 V AC with thermal-magnetic trip and 25 kA interrupting at 240 V AC

  • 30 A rated current protects circuits up to 30 A
  • 600 V AC rating handles industrial voltage levels
  • 25 kA interrupting capacity at 240 V AC clears heavy faults
  • Thermal-magnetic trip gives reliable overload and short-circuit protection
  • Compact 150 A frame fits standard panel space

30 A PowerPact H Breaker

The Square D HDL36030 is a 30 A moulded-case circuit breaker from the PowerPact H series. It provides thermal-magnetic protection for three-phase AC systems rated up to 600 V and DC systems up to 250 V. The frame size is 150 A and the interrupting rating reaches 25 kA at 240 V AC. It suits industrial panel builders and maintenance teams replacing a standard three-pole device.

30 A trip with fixed instantaneous

The single specification that decides fit is the 30 A continuous current rating combined with a fixed instantaneous trip set between 350 A low and 750 A high. This breaker will not coordinate with applications requiring adjustable instantaneous pickup or a different ampere rating. Verify the panel schedule calls for exactly 30 A and the available fault current does not exceed 25 kA at 240 V AC.

Free-standing mount with line/load lugs

Installation is straightforward: the unit mounts free-standing and terminates with line/load lugs on both ends. The fixed instantaneous trip means no field adjustment is possible, so mis-coordination occurs if the upstream device expects a different pickup point. The 6.4 in height, 4.12 in width and 4.36 in depth must clear the enclosure interior; otherwise the door will not close.

How it compares

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

Price $547.99
Pricier than about 90% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSQUARE D

Questions about this item

What does the 30 A rating mean once the breaker is installed in a panel?

The breaker will carry up to 30 A continuously and trip on sustained overloads above that level.

How does the 25 kA AIR rating at 240 V AC limit the breaker's use?

It allows the breaker to interrupt faults up to 25 kA at 240 V AC; at higher voltages the interrupting capacity is lower.

What mounting space does the 6.4 in height, 4.12 in width and 4.36 in depth require?

The unit needs a free-standing cut-out at least 6.4 in tall, 4.12 in wide and 4.36 in deep with clearance for line and load lugs.

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