Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Circuit Breaker
Thomas & Betts | FS340020A | Circuit Breaker | 20A | 3-Pole | 480V
| Part Number | FS340020A |
| Amperes | 20 |
| Poles | 3 |
| Voltage | 480 |
| Product Type | Circuit Breaker |
Regular price
$310.00
Sale price
$310.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Thomas & Betts | FS340020A | Circuit Breaker | 20A | 3-Pole | 480V
Regular price
$310.00
Sale price
$310.00
Regular price
Unit price
Product description
Shipping
Meet the Thomas & Betts FS340020A circuit breaker—an purpose-built solution for industrial power panels requiring reliable 480V three-phase protection. This 20A, 3-pole device is designed for maintenance, retrofit, and replacement projects where exact spec matching matters.
Why this FS340020A stands out
- Exact compatibility: Part FS340020A is the best reference for ensuring you’re pairing the right breaker with your panel and equipment.
- 480V three-phase protection: Engineered to interrupt and protect 3-phase 480V circuits, helping prevent equipment damage and unplanned downtime.
- 20A circuit rating: Ideal for protecting motors, contactors, and control circuits without nuisance trips in standard industrial loads.
- Maintenance, retrofit, replacement-ready: A practical choice for ongoing system upgrades, panel modernization, or replacing aging breakers in service-critical environments.
- Durable, established brand: Thomas & Betts reliability you can count on in industrial electrical infrastructure.
Key specs at a glance
- Amperage: 20A
- Poles: 3-Pole
- Voltage: 480V
- Part number: FS340020A
Use cases and installation guidance
This breaker is well-suited for three-phase equipment in manufacturing lines, HVAC systems in large facilities, and data-center floor infrastructure where 480V services are common. Before ordering, verify that the breaker’s fit and ratings align with your panel’s model and the equipment it protects. If your system documents list FS340020A as the required replacement, you’re likely maximizing compatibility and maintaining protective coordination with existing devices.
Practical tips:
- Double-check the panel schedule and the electrical diagram to confirm the FS340020A is the correct replacement for your 3-pole 480V circuit.
- Maintain coordination with upstream protection and downstream devices to ensure proper tripping behavior during faults.
- Store spare FS340020A breakers in a clean, dry location to preserve performance and longevity.
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
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
