Square D QOM2175VH - 175 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Square D QOM2175VH is a robust 2-pole bolt-on molded case circuit breaker rated at 175A and 240V, purpose-built for dependable branch circuit protection in panelboards and load centers. Its secure bolt-on mounting creates a rigid, vibration-resistant connection to the bus, making it an ideal choice for installations where panel movement or site vibrations are a consideration.

The device features a thermal-magnetic trip unit that delivers stable, repeatable protection. By combining thermal overcurrent sensing with magnetic short-circuit response, it quickly interrupts faults while minimizing nuisance trips, helping downstream equipment stay protected and available.

Designed to work seamlessly with matching OEM load centers and panelboards, this breaker ensures proper fitment, electrical coordination, and reliable performance within the system. Its molded case construction adds durability for years of service in residential, commercial, and light industrial environments.

Why this Square D breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection in challenging installations.
• Thermal-magnetic trip delivers fast, precise protection for both overloads and faults.
• 2-pole design ensures simultaneous interruption of both conductors, improving safety and coordination.
• 175A / 240V rating matches typical mid-range branch circuits and feeder protections.
• Molded case construction for durable, long-lasting performance in panelboards and load centers.
• OEM compatibility guarantees a clean fit with matching Square D panel systems and minimizes retrofit risk.

Technical specifications

• Manufacturer: Square D
• Part Number: QOM2175VH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 175A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and scenarios

• Residential and commercial panels requiring reliable 175A protection for feeders or large branch circuits.
• Light industrial settings where panel vibration or movement is a factor and a secure bolt-on connection is advantageous.
• Retrofits or replacements in OEM load centers where matching form-factor and trip characteristics are essential for system coordination.
• New installations in panelboards designed for bolt-on breakers that demand durable, vibration-resistant performance.

Practical tips for installation and best results

• Ensure the panelboard or load center is compatible with Square D bolt-on breakers and specifically the QOM2175VH form factor.
• Prepare a clean, accessible bus connection area and follow standard torque guidelines for bolt-on mounting to maintain the integrity of the connection.
• Verify system coordination with downstream protection devices to optimize protection curves and minimize nuisance trips.
• Pair this breaker with other compatible Square D components to preserve overall reliability and service life of the electrical distribution system.