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Circuit Breaker

Siemens | LGB2K040B | Circuit Breaker | 40A | 2-Pole | 600V

★★★★★
Amperes 40
Poles 2
Voltage 600
Product Type Circuit Breaker
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Manufacturer :Siemens
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $2,830.00
Sale price $2,830.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
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FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Allen-Bradley 1746-NO8V - Output Module - Output Module

Siemens | LGB2K040B | Circuit Breaker | 40A | 2-Pole | 600V

Regular price $2,830.00
Sale price $2,830.00 Regular price
Unit price
Product description
Shipping

Meet the Siemens LGB2K040B circuit breaker—an exact-match solution designed for dependable overcurrent protection in maintenance, retrofit, and replacement projects. With a 40A rating, 2-pole configuration, and a 600V maximum rating, this unit is purpose-built to align with your existing specifications and keep electrical systems operating safely and reliably. Always verify fit and ratings before ordering; the LGB2K040B part number is the strongest reference for compatibility.

Key specifications

  • Amperage: 40A
  • Poles: 2-Pole
  • Voltage rating: 600V
  • Part number: LGB2K040B

Why this Siemens breaker stands out

  • Exact-fit replacement: Designed to match the original equipment specifications, ensuring consistent protection characteristics and mounting compatibility in Siemens-compatible panels.
  • Direct reference for compatibility: Reliably verified by part number LGB2K040B, reducing guesswork during maintenance or retrofits.
  • Robust, purpose-built build: Crafted to endure routine switching and provide reliable fault protection within your 600V system.

Ideal use cases

  • Routine maintenance of electrical panels where a precise 40A, 2-pole, 600V breaker is required.
  • Retrofits to upgrade or replace aging breakers with a model that matches the original specifications.
  • Replacement in existing circuits that specify the LGB2K040B part number for compatibility.

How to verify fit and order with confidence

Before ordering, confirm these details align with your installation:

  • Part number: LGB2K040B as the primary compatibility reference
  • Amperage: 40A
  • Poles: 2-Pole
  • Voltage rating: 600V

For best results, compare your current breaker’s label to the LGB2K040B specifications and ensure your panel is designed to accept Siemens-compatible, two-pole 40A devices at 600V. This precise match helps preserve electrical safety protocols and minimizes the risk of incompatibility during service or retrofits.

Choose the Siemens LGB2K040B for a confident, specification-aligned replacement that keeps your system protected and running smoothly.

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4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

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