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Siemens BQD330 three-pole bolt-on breaker, grey toggle, compact frame

SIEMENS

SIEMENS BQD330 30 A 3-Pole 480 V AC Bolt-On Circuit Breaker

SKU CH-SBF3-NXNG9

A three-pole bolt-on breaker rated 30 A at 480 V AC with a 14 kA interrupting capacity for Siemens P1 panelboards

  • Product typeCircuit Breakers
  • Protects three-phase circuits with 30 A rating
  • Handles up to 480 V AC for industrial panels
  • Bolt-on mounting fits Siemens P1 panelboards directly
  • 14 kA interrupting capacity at 480 V AC
  • Operates up to 104 °F in standard enclosures

Three-Pole 480 V AC Breaker

The Siemens BQD330 is a 30 A miniature circuit breaker rated for 480 V AC three-phase systems. It carries a 14 kA interrupting rating at that voltage and fits a 100 A BQD frame size. The toggle actuator provides clear on-off indication for panel operators.

Bolt-On Mounting for P1 Panelboards

The bolt-on mounting style secures the breaker directly to Siemens P1 panelboard bus bars, removing the need for plug-in stabs. Lug terminals accept standard copper or aluminium conductors for straightforward wiring. Three poles occupy a single 100 A frame footprint, leaving adjacent space for additional branch devices.

Sustained Load Behaviour

The breaker is calibrated for a maximum operating temperature of 104 °F, so continuous 30 A loading remains within thermal limits inside a ventilated enclosure. The 14 kA AIR rating ensures reliable fault interruption even after extended service periods. Physical dimensions of 4.49 in length, 3.0 in width and 2.7 in depth allow predictable heat dissipation in dense panel layouts.

How it compares

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

Price $570.99
Pricier than about 90% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSiemens
Model nameBQD330
Product typeCircuit Breakers

Questions about this item

What is the maximum interrupting rating of the BQD330 at 480V AC?

The BQD330 has a maximum AIR rating of 14kA at 480V AC, which is the limit that determines its ability to safely interrupt fault current under sustained use.

What is the maximum operating temperature for this breaker during continuous operation?

The maximum operating temperature is 104 degrees Fahrenheit, indicating the thermal limit the breaker can withstand while running all day.

Which panelboard series is required for the BQD330 bolt-on mounting style?

This breaker is compatible with Siemens P1 panelboards, so the buyer must already own a P1 series panelboard for the bolt-on connection to work.

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