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Matched our existing hardware and fit as expected. Clean install.
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Circuit Breaker
Siemens | LGB2B050B | Circuit Breaker | 50A | 2-Pole | 600V | 100kA | Bolt-On
| Part Number | LGB2B050B |
| Amperes | 50 |
| Poles | 2 |
| Voltage | 600 |
| Product Type | Circuit Breaker |
Regular price
$1,016.00
Sale price
$1,016.00
Regular 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.
Siemens | LGB2B050B | Circuit Breaker | 50A | 2-Pole | 600V | 100kA | Bolt-On
Regular price
$1,016.00
Sale price
$1,016.00
Regular price
Unit price
Product description
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Siemens LGB2B050B is a rugged, 2-pole, 50A circuit breaker designed for demanding electrical systems. With a 600V rating and a 100kA interrupting capacity, it provides dependable protection against overloads and short circuits in industrial and commercial panels. The bolt-on mounting simplifies retrofit and maintenance tasks, letting technicians swap in the exact part quickly without modifying the panel or bus assembly.
Built for reliable protection and fast retrofits
The LGB2B050B isn’t just a breaker; it’s a precise fit for Siemens panels and for projects where exact compatibility matters. Bolt-on construction minimizes install time and helps ensure secure mounting and reliable bus-bar contact. The 50A rating is ideal for protecting feeders and branch circuits in light-to-medium duty industrial applications, while the 2-pole design protects both live conductors with a single protective device.
Key specs at a glance
- Amperage: 50 A
- Poles: 2-Pole
- Voltage rating: 600 V
- Interrupting capacity: 100 kA
- Mounting: Bolt-On
- Part number: LGB2B050B (best compatibility reference)
- Brand: Siemens
Ideal use cases
Perfect for maintenance, retrofit, or replacement projects involving Siemens electrical panels or systems that require the LGB2B-series footprint. Use in commercial equipment, machine control panels, or industrial distribution boards where a 50 A, 2-pole breaker with a high fault current rating is needed. Rely on the part number as the best reference for compatibility to avoid mismatches in panel design or bus-bar arrangement.
Practical guidance for selection and installation
Before ordering, verify fit and ratings with the LGB2B050B reference. When upgrading or replacing, ensure the surrounding circuitry aligns with a 50 A protection level and a 600 V maximum rating. Bolt-On breakers provide a secure, durable mounting suitable for panels with bolt-on bus connectors; follow standard electrical safety practices during installation and testing.
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