Siemens BQD Series Bolt-On Molded Case Circuit Breakers

High-Performance Circuit Protection for Industrial & Commercial Applications

The Siemens BQD Series offers a comprehensive range of bolt-on molded case circuit breakers, designed for robust overcurrent and short-circuit protection in demanding electrical systems. Available in 1-pole, 2-pole, and 3-pole configurations with ampere ratings from 15A to 100A, these breakers feature a 480V maximum voltage rating and an impressive 65kA interrupting capacity at 240VAC.

Ideal for:

• Industrial control panels

• Motor protection circuits

• Commercial power distribution

• Machinery and equipment requiring high fault-current protection

Series Overview & Key Features

1-Pole Models (15A–20A)

• Models: BQD115 (15A), BQD120 (20A)

• Voltage: 120/240V

• Applications: Lighting, branch circuits, and single-phase loads

2-Pole Models (20A–100A)

• Models: BQD220 (20A), BQD230 (30A), BQD240 (40A), BQD2100 (100A)

• Voltage: 240/480V

• Applications: HVAC systems, split-phase equipment, and appliance circuits

3-Pole Models (15A–100A)

• Models: BQD315 (15A), BQD320 (20A), BQD330 (30A), BQD380 (80A), BQD3100 (100A)

• Voltage: 240/480V (3-phase)

• Applications: Three-phase motors, industrial machinery, and high-capacity distribution

Technical Specifications (Common to All Variants)