3VA5340-5EC61-0AA0 - 400A Class MJAS 2-Pole Circuit Breaker
- 400 Amp
- 2 Pole
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3VA5340-5EC61-0AA0 - 400A Class MJAS 2-Pole Circuit Breaker Description
3VA5340-5EC61-0AA0 - 400A Class MJAS 2-Pole Circuit Breaker
The Siemens 3VA5340-5EC61-0AA0 is a 400 amp breaker built for straightforward, reliable protection in commercial and industrial systems. No extra complexity—just solid performance where it counts. This model uses a thermal magnetic trip unit (TM230), so you’re covered on both overloads and short circuits. The overload setting is fixed at 400A, which takes adjustment errors off the table. For short-circuit protection, the instantaneous trip can be set between 5 to 10 times the rated current, giving you some flexibility depending on your setup. It’s a 2-pole breaker in a 3-pole frame, which makes it easier to work into existing panels when space or configuration is tight. With a 35 kA rating at 480V AC, it’s designed to handle higher fault levels without hesitation. If you need something dependable that doesn’t require constant attention, this one fits the bill.
Key Features and Benefits
- Rated for 400 amps in high-load applications
- Thermal magnetic trip unit for combined protection
- 35 kA interrupting capacity at 480V AC
- 2-pole design housed in a 3-pole frame
- Fixed overload setting helps avoid setup mistakes
- Adjustable instantaneous trip (5–10x) for short-circuit response
- Compact size for easier panel integration
Technical Specifications
- Part Number: 3VA5340-5EC61-0AA0
- Series: 3VA53
- Amperage: 400A
- Poles: 2 (in 3-pole frame)
- Trip Unit: TM230 Thermal Magnetic
- Interrupting Rating: 35 kA @ 480V AC
- Overload Protection: Fixed at 400A
- Instantaneous Trip: 5–10x rated current
- Dimensions: 9.8" H × 6.3" W × 5.9" D
- Lugs: Not included
Material Compliance and Certifications
- Industry Standards: This breaker is UL listed, which means it meets standard safety requirements for use in the U.S. It’s designed for consistent performance in environments where reliability matters.
Where It Works Best
- Commercial distribution panels
- Industrial equipment and machinery
- Facilities with higher amperage demands
- Upgrade or replacement projects
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Specifications
- Depth:5.9
- Height:9.8
- Width:6.3
- Poles:2
- Amperes:400
- 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, 2-Pole in a 3-Pole Frame, class M 35 kA @ 480 V.AC, line protection TM230, FTAM, In=400 A overload protection Ir=400 A permanently set short-circuit protection Ii=5-10 x. Lugs NOT included
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