Siemens | QJ3B175H00S01 | Circuit Breaker | 175A | 3-Pole | 240V | Bolt-On

Designed for demanding electrical systems, the Siemens QJ3B175H00S01 circuit breaker delivers dependable 175A protection for 3‑phase, 240V service with bolt‑on mounting.

Built to be a precise replacement or retrofit part, this unit is ideal when you need to match existing specs exactly. The part number QJ3B175H00S01 is your best reference for compatibility, ensuring secure fit and consistent performance in compatible Siemens panels and distribution boards.

Key specifications

• Amperage: 175 A
• Poles: 3-Pole
• Voltage: 240 V
• Mounting: Bolt-On

Why this Siemens circuit breaker stands out

• Bolt-On reliability: A robust mounting style designed for solid electrical connections, reducing the risk of loose contacts under load.
• Exact-fit compatibility: With the QJ3B175H00S01 part number, you can be confident it matches your panel's design and trip characteristics.
• Three‑pole protection for 3‑phase systems: Simultaneous interruption across all phases helps protect motors, compressors, and other 3‑phase equipment.
• Incremental replacement convenience: A straightforward maintenance and retrofit option when upgrading or replacing aging breakers.

Ideal use cases:

• Replacement in industrial or commercial 3‑phase panels where 240V service is standard.
• Retrofit projects upgrading older gear to modern Siemens protection with reliable bolt‑on mounting.
• Maintenance cycles where uptime and quick swap‑out times are critical.

Installation and compatibility tips

Before ordering, verify that your equipment accepts the QJ3B series bolt‑on breakers and that the 175A rating aligns with your load calculations. Since the part number is the best reference for compatibility, cross‑check against your panel labeling, service entry, and the equipment being protected. When in doubt, match the electrical count (3‑pole), voltage (240V), and mounting style (bolt‑on) to ensure a seamless replacement.

Note: Use only in rated Siemens panels and distribution boards designed for QJ3B breakers. Incorrect installation can compromise protection and violate electrical codes.