Siemens | HED42M090 | Circuit Breaker | 90A | 2-Pole | 480V | Bolt-On

Siemens HED42M090 Circuit Breaker is a 90A, 2-Pole device designed for 480V systems with bolt-on mounting. This model is ideal for maintenance, retrofit, and replacement projects where matching specifications is critical, ensuring safe and reliable protection for your electrical distribution.

Key specifications

• Amperage: 90 A
• Poles: 2-Pole
• Voltage: 480V
• Mounting: Bolt-On
• Part number: HED42M090

Why choose this Siemens breaker?

The bolt-on design simplifies field replacement by allowing direct mounting to compatible panels, reducing downtime and installation complexity. The 2-pole configuration ensures both hot legs disconnect together on fault, which is essential for safety in 480V circuits. When you need a precise fit in a Siemens system, this HED42M090 delivers the exact combination of amperage, pole count, voltage, and mounting style required.

Use cases and compatibility

• Maintenance and service of existing Siemens panels that specify 90A, 2-Pole, 480V bolt-on breakers.
• Retrofit projects where your panel schedule requires the HED42M090 or a direct part-number match for compatibility.
• Replacement scenarios that demand matching ratings to minimize rewiring and integration effort.

Important: Confirm fit and ratings before ordering. The part number HED42M090 is the best reference for compatibility with your panel, service equipment, or Siemens switchgear. If in doubt, consult your panel data sheet or equipment manual to verify the exact bolt-on footprint and rating requirements.