Siemens BQ3B080H - 80A, 3-Pole, Circuit Breaker

Siemens BQ3B080H is a robust 80A, 3-pole circuit breaker engineered to deliver dependable overcurrent protection in demanding electrical environments. Its versatile design supports flexible use in panelboards, switchboards, and control panels, making it a trusted backbone for power distribution in industrial, commercial, and OEM settings.

Key features

• 80A current rating protects feeders and three-phase circuits with precise, reliable interruption.
• 3-pole configuration provides integrated protection across all three phases in a compact footprint, simplifying panel layouts.
• Circuit breaker type for safe, rapid isolation of fault currents and orderly shutdown of affected circuitry.
• Designed for Siemens ecosystem with compatibility for panelboards, switchboards, and control panels used in demanding industrial environments.

Ideal applications

• Industrial facilities requiring durable protection for three-phase feeders and motor circuits.
• Commercial electrical rooms with three-phase distribution needs.
• OEM equipment and systems that demand a reliable, field-replaceable protection device in distribution panels and motor control centers.

Why this matters

• Three-pole protection aligns with balanced three-phase systems, reducing risk of neutral or phase imbalances during faults.
• The 80A rating is ideal for mid-range distribution segments, providing precise protection without unnecessary tripping of healthy circuits.
• Rugged Siemens engineering translates to dependable performance in busy environments where uptime matters.

Installation and use tips

• Confirm the unit matches your panelboard’s rating and bus configuration before installation.
• Install in accordance with local electrical codes and Siemens installation guidelines to ensure optimal performance and safety.
• Keep a spare BQ3B080H on hand for quick field replacements in critical installations to minimize downtime.

Specification snapshot

• Current rating: 80A
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Applications: panelboards, switchboards, control panels
• Ideal for: industrial, commercial, and OEM applications