Siemens | HQJ23B100HA02 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Siemens HQJ23B100HA02 Circuit Breaker is your trusted solution for robust, reliable protection in 3‑phase electrical systems. With a 100A rating, a 3‑pole design, and 240V operation, this bolt‑on breaker is engineered for demanding panel environments where secure mounting and precise protection matter most. Whether you’re maintaining, retrofitting, or replacing equipment, this part number is your best reference to ensure exact compatibility.

Key specifications at a glance

• Amperage: 100A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt‑On
• Part reference: HQJ23B100HA02

Why choose this Siemens 3‑pole bolt‑on breaker?

• Designed for secure, high‑current protection in Siemens panels that require bolt‑on installation, offering a solid mechanical connection and dependable trip performance under load.
• Three‑phase protection tailored for balanced distribution of power across motors, pumps, HVAC equipment, and other mid‑to‑high‑demand loads common in commercial and light industrial settings.
• Exact compatibility is facilitated by the dedicated part number HQJ23B100HA02, reducing uncertainty during maintenance, retrofit, or replacement projects.
• Ideal for durable retrofit work where the existing panel or gear is configured for bolt‑on protection, enabling quicker, more secure installation with fewer connection points to manage.

Best use cases

• Maintenance or replacement in commercial panels that require a 100A, 3‑pole, 240V bolt‑on device.
• Retrofits in existing Siemens switchgear where three‑phase protection is essential for equipment like air handlers, cooling towers, and processing equipment.
• Panel upgrades in facilities planning for higher or more reliable motor load management, ensuring coordinated protection across three phases.

Installation tips and care

Before ordering, double‑check that your panel is designed for bolt‑on protection and that the rating matches your load requirements. The HQJ23B100HA02 is the precise reference for compatibility, but verify physical fitment and electrical ratings with your panel’s documentation. When installing, ensure all safety protocols are followed, disconnect power, and torque mounting hardware to the manufacturer’s specification to maintain reliable fault clearing and secure operation.

What you get

• One Siemens HQJ23B100HA02 Circuit Breaker (100A, 3‑Pole, 240V, Bolt‑On)

Perfect for professionals handling maintenance, retrofit, or replacement projects in Siemens‑configured electrical systems. This breaker delivers the right combination of current rating, three‑phase protection, and bolt‑on mounting to support safe, continuous operation in demanding environments.