Siemens Q230H - 30 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q230H — a 30A, 240V, 2-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its fast plug-in connection makes installation and replacement a breeze, minimizing downtime during upgrades or servicing. The thermal-magnetic trip unit provides stable, repeatable protection across varied electrical loads, helping safeguard wiring and connected equipment from both gradual overloads and sudden faults. Engineered to work seamlessly with matching OEM load centers and panelboards, the Q230H is a trusted choice for residential, commercial, and light industrial electrical systems.

• Plug-in, molded-case design for quick, reliable installations and easy replacements in compatible Siemens panels
• Thermal-magnetic trip delivers coordinated protection: magnetic trip for immediate fault interruption and thermal delay for nuisance trips during short surges
• 30 amperes at 240 volts ideal for common 240V branch circuits such as dryers, air conditioning, heat pumps, and other heavy-load loads
• Two-pole configuration ensures simultaneous disconnection of both hot legs, improving safety in shared-neutral or 240V circuits
• OEM load center compatibility designed to pair with matching Siemens load centers and panelboards for dependable performance
• Versatile for multiple settings suitable for residential, commercial, and light industrial applications requiring reliable 30A protection

Why this matters

The Q230H isn’t just a breaker — it’s a safeguard that helps prevent insulation damage, electrical fires, and equipment failure by interrupting fault conditions quickly and predictably. With a plug-in format, technicians can upgrade or replace breakers with minimal panel downtime, keeping critical power on track in maintenance-driven environments.

Who should consider it

Electricians and facility managers upgrading panelboards, homeowners performing code-compliant replacements, and contractors wiring or reconfiguring 240V circuits will find the Q230H a precise, dependable fit. If your project requires a dedicated 30A, 240V, two-pole protection device that installs with ease and aligns with OEM hardware, this breaker is designed to meet those needs.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: Q230H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Installation tips and best practices

• Ensure the panelboard is compatible with Siemens plug-in breakers and that slot spacing matches a 2-pole device
• Power down the service before removing or installing breakers; verify there’s no residual voltage
• Seat the breaker firmly in the bus connection until it locks in place for a reliable electrical connection
• Check that the load orientation and circuit labeling reflect the new protection, updating as needed for safety and compliance