Square D | Q1B370VH | Circuit Breaker | 70A | 3-Pole | 370V

Square D Q1B370VH circuit breaker delivers reliable protection for 3‑phase, 370V electrical systems. With a 70A rating and three poles, this model is purpose-built for maintenance, retrofit, and replacement tasks where exact specifications are essential. The best reference for compatibility is the part number Q1B370VH, helping you match old panels with new replacements without guesswork.

Key specifications

• Amperage: 70A
• Poles: 3-Pole
• Voltage: 370V

Why this Square D breaker stands out

• Exact part reference: The Q1B370VH designation ensures precise compatibility with your Square D panel or retrofit kit.
• Three-pole design for 3‑phase protection: Consistent fault protection across all phases in demanding 370V environments.
• Built for durability in retrofit projects: Engineered to withstand routine maintenance cycles and replacement scenarios in industrial settings.

Ideal use cases

• Maintenance replacements in aging or upgraded electrical systems that operate at 370V three‑phase power.
• Retrofit projects where a 70A, 3‑pole breaker is required to match existing panel configurations.
• Replacement for legacy equipment in commercial or light industrial applications needing dependable circuit protection.

Installation and compatibility notes

Before ordering, confirm fit and ratings to ensure seamless integration. The part number is the best reference for compatibility—use Q1B370VH to verify that your panel labeling, bus configuration, and thermal ratings align with this unit. This careful verification helps avoid downtime and ensures you’re protecting the circuit exactly as intended.

When you need a precise, ready-to-install solution for 70A, 3‑pole, 370V systems, the Square D Q1B370VH circuit breaker stands out as a reliable, specification‑matched choice designed to keep your electrical setup safe and compliant.