Siemens | QJH23B080A01 | Circuit Breaker | 80A | 3-Pole | 240V | Bolt-On

Meet the Siemens QJH23B080A01 circuit breaker—an 80A, 3-pole protection device engineered for demanding electrical systems. With a bolt-on mounting design, this breaker delivers secure, vibration-resistant performance in commercial and industrial panels that require dependable three-phase protection at 240V.

Key specifications at a glance

• Amperage: 80A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part Number: QJH23B080A01
• Intended use: maintenance, retrofit, and replacement where matching specs are required

What makes this breaker unique

Designed for Siemens panels that demand precise fit and reliable trip protection, the QJH23B080A01 stands out with its robust bolt-on connection—offering a sturdier, more secure mounting than plug-in alternatives in vibration-prone environments. Its 3-pole, 240V configuration is ideal for balanced protection across all three phases, helping reduce the risk of arc faults and equipment damage in three-phase systems.

Ideal use cases

• Upgrading or replacing aging breakers in commercial or light industrial panels where a 3-pole, 240V protection device is required
• Retrofit projects that need exact spec compatibility with existing Siemens equipment
• Maintenance scenarios where minimizing downtime and ensuring reliable fault interruption is critical
• HVAC, motor control, and other three-phase loads that demand consistent circuit protection at 240V

Compatibility and installation tips

To ensure proper performance, verify fit and ratings before ordering. The part number—QJH23B080A01—is the most reliable reference for compatibility with your panel. When installing, confirm the panel supports bolt-on breakers in this configuration, align with the bus connection, and follow your local electrical codes and the panel manufacturer's torque and installation guidelines. If you’re upgrading or retrofitting, replacing with the exact Siemens specification helps maintain system protection coordination and trip characteristics.

Why choose Siemens for your panel protection

Siemens engineers these breakers to deliver consistent performance in demanding environments. The QJH23B080A01 provides predictable interrupting capability across all three phases, helping you maintain safe operation of connected equipment, minimize nuisance trips, and simplify maintenance planning by using a matching, factory-referenced part.