Siemens | HQJ3B100HA02 | Circuit Breaker | 100A | 3-Pole | 240V

Meet the Siemens HQJ3B100HA02 circuit breaker — a purpose-built protection device designed for 3‑phase, 240V systems. With a 100A rating and 3 poles, this unit is tailored for maintenance, retrofit, and replacement projects where exact compatibility matters. When you need a dependable, direct reference part for Siemens panelboards and distribution gear, the HQJ3B100HA02 is the clear choice.

Key specifications

• Amperage: 100 A
• Poles: 3‑Pole
• Voltage: 240 V
• Part number: HQJ3B100HA02

Why this Siemens breaker stands out

• Direct compatibility reference: the HQJ3B100HA02 part number is the best indicator for matching breakers to compatible Siemens panels and distribution equipment.
• Designed for reliability in real-world conditions—ideal for ongoing maintenance cycles, panel upgrades, and equipment retrofits.
• Three-pole protection for balanced 3‑phase loads, ensuring synchronized shutoff and consistent trip behavior across all phases.
• Clear, fixed 240V rating makes it especially suitable for commercial and light industrial applications where 3‑phase 240V service is standard.

Ideal use cases

• Maintenance or retrofit projects where a precise 3‑pole, 240V breaker is required in Siemens systems.
• Replacement in existing Siemens panelboards that specify HQJ3B100HA02 for continued protection of 3‑phase equipment.
• New installations in environments powered by 3‑phase 240V circuits that demand a robust, compatible Siemens solution.
• Electrical room upgrades in commercial spaces, manufacturing floors, or data/comms centers using Siemens gear.

Installation and compatibility tips

• Always confirm fit and ratings before ordering. The HQJ3B100HA02 is the best reference for compatibility with your equipment.
• Check that your panel or distribution gear supports a 3‑pole 240V breaker of this rating to ensure proper wiring and safe operation.
• Refer to your Siemens documentation to verify that this exact part number is listed for your panel model and bus configuration.
• During installation, follow standard electrical safety practices and torque specs to ensure a secure, reliable connection across all three poles.

For professionals maintaining Siemens electrical systems, the HQJ3B100HA02 offers a precise, dependable solution that aligns with your panel’s specifications, minimizes downtime, and helps maintain safe, code-compliant operation of 3‑phase equipment.