Siemens QJH23B150 - 150 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet a reliable standard for branch‑circuit protection: the Siemens QJH23B150 3‑pole, 150A, 240V bolt‑on molded case circuit breaker. Built to stand up to busy electrical panels, this unit delivers consistent overcurrent and short‑circuit protection where it matters most.

Key features

• Secure bolt‑on mounting provides a rigid, vibration‑resistant bus connection that stays tight under demanding panel conditions.
• Thermal‑magnetic trip combines long‑term overload protection with fast magnetic response for short circuits, delivering stable, repeatable protection performance.
• OEM‑compatible designed to work with matching Siemens OEM loadcenters and panelboards, ensuring seamless integration.
• Versatile application suitable for residential, commercial, and light industrial installations needing dependable 150A protection.

In practical terms, this breaker helps prevent nuisance trips and equipment damage by delivering reliable trip behavior aligned with typical load profiles, while the bolt‑on design minimizes movement and wear on the bus—reducing maintenance headaches over time.

Ideal use cases

• Main feeder protection in residential panelboards where a 150A main is required
• Commercial distribution panels serving offices, retail spaces, or light industrial equipment
• Retrofit projects or service upgrades requiring robust, code‑compliant overcurrent protection
• Vibration‑prone environments where a secure bolt‑on connection helps maintain panel integrity

Specifications at a glance

• Manufacturer: Siemens
• Part number: QJH23B150
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 240 V
• Poles: 3
• Mounting style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Siemens QJH23B150 delivers dependable protection for panelboards and load centers, helping you maintain electrical safety, reduce downtime, and simplify panel maintenance. Ideal for professionals upgrading or installing service panels, this breaker brings proven performance to residential, commercial, and light industrial systems.