3VA5280-5EF31-0AA0 - MFAS 80 Amp Circuit Breaker
- 80 Amp
- 35kA @ 480V Volts AC
- 3 Pole
Purchase Options:
3VA5280-5EF31-0AA0 - MFAS 80 Amp Circuit Breaker Description
3VA5280-5EF31-0AA0 - MFAS 80 Amp Circuit Breaker
If you’re working with a 480V three-phase system and need a circuit breaker you don’t have to think twice about, the Siemens 3VA5280-5EF31-0AA0 is a dependable option. This 80 amp, 3-pole breaker is part of Siemens’ 3VA5 series, built for consistent line protection in commercial and industrial environments.
What makes this one a go-to for many electricians and maintenance teams is its simplicity. The thermal magnetic trip unit comes with fixed settings—so there’s no adjusting, no programming, and no surprises. It handles overloads and short circuits exactly the way you expect, especially in systems where reliability matters more than extra features.
With a 35kA interrupting rating at 480V, it’s designed for applications where available fault current is higher, giving you the level of protection needed to keep equipment—and downtime—in check.
Key Features and Benefits
- 80 Amp Circuit Breaker: Designed for stable, continuous operation in three-phase systems
- Thermal Magnetic Protection: Combines overload and instantaneous short-circuit protection
- 35kA @ 480V Interrupting Rating: Suitable for demanding electrical environments
- 3-Pole Breaker Design: Ideal for commercial and industrial power distribution
- Fixed Trip Settings (Ir = 80A): No field adjustments required
- Instantaneous Trip (Ii = 10x In): Fast response to fault conditions
- Compact Siemens 3VA5 Frame: Fits easily into panelboards and switchgear
Technical Specifications
- Manufacturer: Siemens
- Part Number: 3VA5280-5EF31-0AA0
- Series: 3VA52 / 3VA5
- Poles: 3
- Amperage: 80A
- Voltage Rating: Up to 480V
- Interrupting Capacity: 35kA @ 480V
- Trip Unit: Thermal Magnetic (TM240, ATAM)
- Overload Protection (Ir): Fixed at 80A
- Short-Circuit Protection (Ii): 10 × In
- Frame Size: 250
-
Dimensions:
- Height: 9.65 in
- Width: 6.3 in
- Depth: 5.9 in
Material Compliance and Certifications
- UL Listed Circuit Breaker: for use in North American applications
- Designed to meet standard electrical protection requirements
- Manufactured with high-quality internal components for long-term reliability
Where It Works Best
- This Siemens 80A 3-pole circuit breaker fits right into applications where you need dependable protection without added complexity:
- Commercial buildings and electrical distribution panels
- Industrial machinery and control systems
- Manufacturing facilities
- Panel upgrades or replacement projects
- Any 480V three-phase system requiring 35kA protection
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Depth:5.9
- Height:9.65
- Width:6.3
- Poles:3
- Amperes:80
- A.I.C. Rating & Volts:35kA @ 480V
- Type:3VA52
- Approx Dimensions:7.30"H x 4.10"W x 3.30"D
- Additional Notes:M-Interrupting Class (MFAS) Thermal Magnetic circuit breaker 3VA5 UL Frame 250 breaking capacity class M 35 kA @ 480 V 3-pole, line protection TM240, ATAM, In=80 A overload protection Ir=80 A permanently set short-circuit protection Ii=10 x In without connection
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).