
3VA5335-5EF31-0AA0 - 350A Class MJAS 3-Pole Circuit Breaker

- 350 Amp
- 3 Pole
Purchase Options: New
3VA5335-5EF31-0AA0 - 350A Class MJAS 3-Pole Circuit Breaker Description
3VA5335-5EF31-0AA0 - 350A Class MJAS 3-Pole Circuit Breaker
This Siemens 3VA5335-5EF31-0AA0 is a 350 amp, 3-pole breaker from the 3VA5 series. It’s typically used in commercial or light industrial panels where you’ve got 480V systems and need something that can handle the load without being oversized. The amp setting is adjustable from 280 to 350 amps, which helps if your load isn’t exact. You can dial it in instead of settling for a fixed breaker. It’s a thermal magnetic unit, so it handles overloads on a delay and trips fast on short circuits—pretty standard, and easy to work with. It’s rated 35 kA at 480V, so it’s fine for most common applications where available fault current isn’t extreme but still needs to be accounted for. Nothing fancy here—just a solid breaker that does what it’s supposed to.
Key Features and Benefits
- Adjustable 280–350A range
- Thermal magnetic trip unit
- 35 kA @ 480V AC
- 3-pole for three-phase systems
- Instantaneous trip adjustable (5–10x)
- 400A frame (3VA5)
- Lugs not included
Technical Specifications
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Part Number: 3VA5335-5EF31-0AA0
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Series: Siemens 3VA5
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Amps: 350A (adjustable 280–350A)
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Poles: 3
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Frame: 400A
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Interrupting Rating: 35 kA @ 480V AC
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Trip Type: Thermal Magnetic (TM240)
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Short Circuit Setting: 5–10x
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Size:
- 9.8" H x 6.3" W x 5.9" D
Material Compliance and Certifications
- UL Listed
- Meets standard industry requirements for this type of breaker
Where It Works Best
You’ll see this used in distribution panels, feeders, and equipment circuits in commercial buildings or industrial setups. Basically anywhere you need a 350A, 3-phase breaker with a little adjustability.
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Specifications
- Depth:5.9
- Height:9.8
- Width:6.3
- Poles:3
- Amperes:350
- Type:3VA53
- Approx Dimensions:9.80"H x 5.4"W x 5.4"D
- Additional Notes:M-Interrupting Class (MJAS) Thermal Magnetic circuit breaker 3VA5 UL 400A Frame Size, 3-Pole, class M 35 kA @ 480 V.AC, line protection TM240, ATAM, In=350 A overload protection Ir=280A-350A short-circuit protection Ii=5-10 x. Lugs NOT included
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