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Circuit Breaker

Siemens | LGB3K090B | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On

★★★★★
Amperes 90
Poles 3
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 $4,654.00
Sale price $4,654.00 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
Icon
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 | LGB3K090B | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On

Regular price $4,654.00
Sale price $4,654.00 Regular price
Unit price
Product description
Shipping

Siemens LGB3K090B Circuit Breaker is built for demanding industrial environments, delivering reliable protection where it matters most. This 90 A, 3-pole unit operates up to 600 V and uses a bolt-on mounting for a solid, vibration-resistant installation in control panels, switchgear, and targeting high-demand applications.

Key specifications

  • Amperage: 90 A
  • Poles: 3-Pole
  • Voltage rating: 600 V
  • Mounting: Bolt-On
  • Part number: LGB3K090B

What makes this breaker stand out

This Siemens model is purpose-built for maintenance, retrofit, and replacement projects that require exact specifications. The LGB3K090B design ensures a precise fit with compatible panels, minimizing downtime and awkward substitutions. The bolt-on construction provides a robust mechanical connection ideal for environments with vibration or movement, improving long-term reliability. With a true 3-pole arrangement, it guarantees simultaneous disconnection of all live conductors, enhancing operator safety during trips and servicing.

Ideal use cases

  • Maintenance and upgrades of industrial electrical panels that require a 90 A, 3-pole, 600 V protection device.
  • Retrofits where the existing equipment aligns with the LGB3K090B specifications, ensuring seamless compatibility.
  • Replacement of worn or failed breakers in manufacturing lines, large motors, conveyors, and processing equipment.

How to ensure the right fit

Before ordering, confirm that the LGB3K090B matches your panel’s ratings and footprint. The part number is the most reliable reference for compatibility, so cross-check against your service documentation and current breaker labeling to avoid mismatches.

Installation tips and reliability tips

  • Adhere to standard electrical safety practices and lockout/tagout procedures during replacement.
  • Secure bolts in accordance with manufacturer guidelines to preserve a solid connection in vibration-prone environments.
  • Keep a spare LGB3K090B on hand for planned maintenance or emergency replacements, reducing downtime.

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

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

Verified

Consistent quality. We’ve added similar items to our regular reorder list.

MRO · Reorder

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Support is responsive when we have questions about fit or application.

Purchasing · Quick answers

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A reliable choice when we need industrial parts on short notice.

Service · Urgent replacement

Fast industrial sourcing support

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

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