Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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circuit-breaker
ABB S203-K20 20A 3P 480V Circuit Breaker | AmpState
| Part Number | S203-K20 |
| Amperes | 20 |
| Poles | 3 |
| Voltage | 480 |
| Product Type | circuit-breaker |
Regular price
$293.00
Sale price
$293.00
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.
ABB S203-K20 20A 3P 480V Circuit Breaker | AmpState
Regular price
$293.00
Sale price
$293.00
Regular price
Unit price
Product description
Shipping
The ABB S203-K20 20A 3P 480V Circuit Breaker from AmpState delivers reliable overcurrent protection for industrial and commercial electrical distribution. Designed for panelboards, load centers, and distribution boards, this 3-pole breaker helps safeguard critical circuits in demanding 480V systems while keeping installation and maintenance straightforward.
Overview
- Manufacturer: ABB
- Part Number: S203-K20
- Product Type: Circuit Breaker
- Amperage: 20 A
- Poles: 3
- Voltage Rating: 480 V
Why this S203-K20 stands out
For retrofit projects and maintenance plans where continuity of part numbers matters, the S203-K20 offers predictable interchangeability with existing ABB installations. Its 3-pole configuration provides consistent protection across three live conductors in 480V distributions, helping prevent nuisance trips and ensuring coordinated protection with upstream devices.
Ideal use cases
- Retrofit and expansion projects in panelboards and load centers operating at 480V
- Replacement in legacy ABB S203-series installations to maintain compatibility and documentation continuity
- Routine maintenance planning where a specific part number and rating are required
- Electrical distribution setups in commercial and light-industrial environments that require precise 20 A protection
Compatibility and support
Need help matching a part number or confirming compatibility with your existing gear? Message us and we’ll help you confirm fit. This item is available from AmpState and ready to ship to support your scheduling needs.
Contact sales@ampstate.com
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
Verified
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
