Siemens | BQ3B100HL | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Siemens BQ3B100HL is a dependable 100A, 3-pole, 240V bolt-on circuit breaker designed for demanding electrical panels. Built for maintenance, retrofit, and replacement projects, it delivers precise current protection in three‑phase systems while preserving Siemens compatibility in your distribution lineup.

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part reference: BQ3B100HL
• Best practice: Confirm fit and ratings before ordering—the part number is your most reliable compatibility reference.

Why this matters for your electrical setup:

• The 3-pole design is ideal for distributing balanced protection across all phases of a 240V three-phase system, helping to safeguard equipment and maintain stable operation.
• If you’re updating or replacing aging breakers in Siemens-compatible panels, the BQ3B100HL provides a straightforward swap with the same bolt-on mounting footprint you rely on.
• Keeping a ready-to-install 100A breaker on hand minimizes downtime during service calls or capacity upgrades.

Ideal use scenarios:

• Maintenance and service upgrades in commercial or light industrial panels that require a 3-pole, 240V protection scheme.
• Retrofit projects where existing bolt-on breakers of the same family need to be replaced with a Siemens-certified alternative.
• Spare part for ongoing equipment protection in systems designed around the BQ3B100HL specifications.

Installation and compatibility tips:

• Always verify panel compatibility using the exact part number (BQ3B100HL) to ensure correct fit and ratings before ordering.
• Before installation, power down the panel and follow established safety procedures. Use the panel’s documentation to confirm the correct mounting location and wiring clearances for bolt-on devices.
• Keep a compatible spare on hand for fast replacement during preventive maintenance or after a surge event, reducing downtime and service disruption.

With Siemens engineering at the core, the BQ3B100HL delivers dependable protection for three-phase 240V circuits, structured for easy integration into existing Siemens systems. Whether you’re updating panels, performing routine replacements, or stocking for future service needs, this 100A, 3-pole bolt-on breaker is a practical, compatibility‑focused choice.