QBH240 | Circuit Breaker | 2-Pole | 240V | Bolt-On

The QBH240 2-Pole 240V Bolt-On Circuit Breaker is engineered for demanding industrial panels where dependable protection and easy field service matter most. Identified by the exact part number QBH240, this device shines in maintenance, retrofit, and replacement projects where matching specs is non‑negotiable. Before you order, confirm fit and ratings—the part number is the best reference for compatibility.

Key advantages that matter in the field

• 2-Pole design provides simultaneous interruption of both live conductors on a 240V circuit, reducing the risk of arc faults and ensuring safer shutdown of dual‑line protection.
• Bolt-On mounting delivers secure, rugged installation with straightforward serviceability in compatible panels, minimizing the chance of loosened connections over time.
• 240V rating aligns with common industrial equipment, feeders, and motor circuits, making it a practical choice for panel upgrades or replacements where dual‑line protection is required.
• Part-number accuracy—QBH240 is your most reliable reference for compatibility, enabling quicker sourcing and fewer aftermarket surprises during retrofit projects.

Ideal use cases

• Maintenance: replace worn or failed 240V two‑pole breakers to restore peak protection in control panels and equipment enclosures.
• Retrofit: upgrade legacy panels to standardized 2‑pole 240V protection with a bolt‑on design that simplifies installation in compatible hardware.
• Replacement: stock a true QBH240 part for service fleets to minimize downtime when exact‑spec breakers are required.

Compatibility and how to verify

This QBH240 is best referenced by its part number when checking against your panel’s requirements. To ensure a perfect match, compare:

• Mounting style — verify that your panel accepts bolt‑on breakers of the same footprint and mounting arrangement.
• Voltage and pole configuration — confirm a 2‑pole, 240V configuration matches the circuit design and safety interlock expectations.
• Electrical ratings — ensure the breaker's current rating and interrupt capacity align with the circuit’s load and short‑circuit requirements.

Using the exact QBH240 part number minimizes guesswork and helps you source the correct replacement without trial‑and‑error delays.

Practical installation notes

• Power down the panel and follow your site’s lockout/tagout procedures before starting any work.
• Use the manufacturer’s torque specifications for mounting bolts to ensure a secure, reliable connection.
• Inspect the surrounding bus bars and conductor terminals for wear or oxidation; replace any damaged components before installation.
• After installation, verify proper seating of the breaker and perform a functional test in accordance with your electrical safety protocols.

Why choose the QBH240 for your next project

Unlike generic replacements, the QBH240 is a purpose‑built, 2‑pole 240V bolt‑on breaker designed for real‑world industrial panels. Its bolt‑on design provides durability in environments with vibration or frequent service cycles, while the 2‑pole configuration ensures complete disconnection of both hot legs for enhanced protection on 240V circuits. Rely on the exact QBH240 specification when planning retrofits or maintenance windows, and you’ll minimize downtime while preserving system safety and performance.