Siemens 3VA5105-1MU31-0AA0 Motor Circuit Protector
- 5A
- 3 Pole
- Panel Mount
Quantity
Siemens 3VA5105-1MU31-0AA0 - 5A 3 Pole Motor Circuit Protector
New
Quantity
Description
Built for motor protection, the Siemens 3VA5105-1MU31-0AA0 motor circuit protector is rated 5A at 480VAC and 690VAC with 3 poles and 3-phase operation. This 3VA5 series unit uses a 3VA51 frame with panel mounting and lug terminals. Its adjustable magnetic-only trip provides instantaneous-only protection. The interrupting rating is 65kA at 480VAC. Standards include IEC 60947-2 and UL 489, with CE, CSA, UL and VDE approvals.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5105-1MU31-0AA0 |
| Series | 3VA5 |
| Amperage | 5A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 480VAC, 690VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 480VAC |
| Frame Type | 3VA51 |
|---|---|
| Terminal Type | Lugs |
| Min Wire | 14 AWG |
| Trip Technology | Magnetic Only |
|---|---|
| Trip Function Code | I |
| Trip Function | Instantaneous Only |
| Trip Adjustability | Adjustable Magnetic |
| Available Options | Alarm Switch, Auxiliary Switch, Motor Operator, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | Motor Circuit Protector |
Product FAQs
9 answersWhat protection does the Siemens 3VA5105-1MU31-0AA0 provide for a motor circuit?
This motor circuit protector uses a magnetic-only, instantaneous trip to respond to short-circuit current. Use it for instantaneous fault protection in a motor circuit, with motor overload protection handled separately.
Why is the magnetic trip adjustable?
Adjustable magnetic pickup lets you set the current threshold for instantaneous tripping. Select the setting to accommodate motor starting current while maintaining the required fault protection.
How does the 5A rating guide selection?
The rated current is 5A, which is the current rating to use when evaluating the protector for your motor circuit. Treat rated current and adjustable magnetic pickup as separate selection parameters.
How do I evaluate the voltage and interrupting ratings for my installation?
The rated voltages are 480VAC and 690VAC. At 480VAC, the interrupting rating is 65kA, so the available fault current at the installation point must not exceed 65kA.
How are the three poles used in a three-phase motor circuit?
The three poles serve the three phase conductors of the motor circuit. Neutral connection is not applicable, so plan the protector's connections around the phase conductors.
What should I consider when selecting conductors and making terminations?
The terminals are lugs, and the minimum wire size is 14 AWG. Use these requirements when planning conductor terminations, and size the conductors for the circuit's installation requirements.
What temperature range should I use when planning the installation?
The temperature rating is -25C to 70C. Evaluate the temperature where the protector will be installed against this range.
Which standards and approvals can I use when reviewing project requirements?
The standards are UL 489 and IEC 60947-2, with CE, CSA, UL and VDE approvals. Compare these with the standards and approval requirements for your project when selecting the protector.
How much physical space should I plan for the protector?
The protector measures 5.50 in high, 3.00 in wide and 3.70 in deep. Use these dimensions to plan the mounting footprint and device layout.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 9 reviews.
- MRMark R.Verified BuyerReviewingSiemens 3VA5290-5EC31-0AA0 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/6/26Breaker from SuperBreakers
SuperBreakers had what I needed and got it to me very Fast.
- EAEdward A.Verified BuyerReviewingSiemens 3VA5112-5EC31-0AA0 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26Quick Shipping
Instock and quick free shipping over a $100
- JFJustin F.Verified BuyerReviewingSiemens 3VA5450-5EC31-0AA0 - 500A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/2/26SIEMENS BREAKER WAS SENT NEXT DAY...
ORDER CAME WHEN IT WAS PROMISSED AND WAS CORRECT... HAPPY CUSTOMER.
THANK YOU,
JUSTIN
- GMGary M.Verified BuyerRated 4 out of 5 stars6/19/26Hard to find Siemens breaker
Great product at a fair price
- RJRene J.Verified BuyerReviewingSiemens 3VA5212-6EF31-0AA0 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars4/13/26Siemens 3VA5212-6EF31-0AA0
Item arrived quickly and in perfect condition