Siemens | HED42B045L | Circuit Breaker | 45A | 2-Pole | 480V | Bolt-On

The Siemens HED42B045L circuit breaker is a purpose-built protection device for 480V distribution needs, delivering reliable overcurrent protection in a compact 2-pole configuration. Designed for maintenance, retrofit, and replacement projects, this bolt-on breaker ensures a secure, durable connection in demanding electrical environments.

Key specifications

• Amperage: 45 A
• Poles: 2-Pole
• Voltage rating: 480 V
• Mounting: Bolt-On
• Part number: HED42B045L
• Applications: maintenance, retrofit, and replacement where exact specs are required

Why this Siemens breaker stands out

• The HED42B045L is your best reference for matching electrical protection in Siemens-based systems—use the exact part number to verify fit and ratings before ordering.
• The bolt-on mounting provides a robust, vibration-resistant connection ideal for industrial panels and demanding environments.
• With 45 A at 480 V, this breaker is engineered to safeguard high-current circuits without nuisance tripping, helping keep critical equipment online.
• Perfect for replacements in legacy installations or for retrofitting modern Siemens panels where upgrading to a compatible, precision-rated breaker is essential.

Ideal use scenarios

• Upgrading or replacing aging protection devices in 480V distribution panels
• Retrofit projects where exact Siemens specifications are required for continued safe operation
• Spare part provisioning for maintenance teams managing Siemens electrical infrastructure

Practical installation and planning tips

• Always confirm fit and ratings against your panel documentation prior to purchase to ensure seamless integration.
• Prepare for bolt-on mounting by inspecting mounting rails and ensuring clearance for the 2-pole enclosure device.
• Consider stock planning for future maintenance—keeping the HED42B045L on hand can reduce downtime when replacements are needed.

Choose the Siemens HED42B045L when you need a dependable 2-pole, 45 A, 480 V bolt-on circuit breaker that aligns with Siemens engineering standards. Its precise specifications, robust mounting, and clear reference in the part number make it a smart, long-term choice for protecting critical electrical systems.