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Feels well-built and suitable for everyday plant and maintenance use.
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circuit-breaker
Siemens B390H 90A 3P 240V Circuit Breaker | AmpState
| Part Number | B390H |
| Amperes | 90 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | circuit-breaker |
Regular price
$769.00
Sale price
$769.00
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.
Siemens B390H 90A 3P 240V Circuit Breaker | AmpState
Regular price
$769.00
Sale price
$769.00
Regular price
Unit price
Product description
Shipping
Introducing the Siemens B390H 90A 3P 240V Circuit Breaker — a purpose-built overcurrent protector designed for panelboards, load centers, and electrical distribution. This 3-pole breaker is ideal for replacement projects where you need to preserve the BOM and keep the original part number intact, ensuring a seamless retrofit with your existing Siemens infrastructure.
- Part Number: B390H
- Amperage: 90 A
- Poles: 3
- Voltage: 240 V
- Type: Circuit Breaker
- Applications: Panelboards, load centers, electrical distribution
- Best for: Replacement projects and stocking spares to maintain BOM alignment with the original part number
Why choose the B390H in your electrical protection strategy? This Siemens breaker slots into standard Siemens panel configurations without modification, reducing installation time and the risk of fit issues. By stocking the exact B390H part, you minimize downtime during maintenance and ensure consistent performance across your three-phase circuits.
Practical use cases
- Retrofit or upgrade of existing Siemens panels that require a 90 A, 3-pole, 240 V protector
- Emergency spare in critical facilities to maintain continuity of service
- Stocking the BOM to stay aligned with the original equipment specification
Support and compatibility
Need help matching a part number or confirming compatibility with your panel? Message us and we’ll help you confirm the fit. This item is available from AmpState, designed to ship quickly to keep your project on track.
Contact sales@ampstate.com
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Lead time was reasonable and the part matched expectations when it arrived.
Procurement · Ontario
Verified
Good value for industrial use. Customers mention easy installation.
Service tech · Field work
