Siemens 3VA5125-1MU31-0AA0 Motor Circuit Protector
- 25A
- 3 Pole
- DIN Rail
Quantity
Siemens 3VA5125-1MU31-0AA0 - 25A 3 Pole Motor Circuit Protector
New
Quantity
Description
Built for motor circuit protection, the Siemens 3VA5125-1MU31-0AA0 provides instantaneous-only magnetic tripping. Rated 25A at 600Y/347VAC, it has 3 poles and a 65kAIC interrupting rating at 480V. The adjustable magnetic trip range is 75-175A. This 3-phase motor circuit protector uses the 3VA51 frame, with DIN rail mounting and feed-thru terminals. It measures 3 in wide, 5.5 in high and 3.7 in deep, with UL approval and RoHS, REACh and WEEE standards.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5125-1MU31-0AA0 |
| Series | 3VA5 |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 480VAC |
| Amperage Range | 75-175A |
|---|
| 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
7 answersHow should I use the 25A rating when selecting the Siemens 3VA5125-1MU31-0AA0?
The 25A rating is the motor circuit protector's rated current. Evaluate it separately from the adjustable magnetic trip setting when selecting protection for the motor circuit.
How does the magnetic-only, instantaneous trip affect motor protection?
The magnetic trip responds to high current without an intentional time delay. Use this motor circuit protector for short-circuit protection in a motor circuit with overload protection.
How do I choose a setting within the 75-175A magnetic trip range?
The adjustable magnetic trip lets you select the instantaneous pickup within 75-175A. Coordinate the setting with motor starting current and motor-circuit protection requirements to avoid tripping during normal starting while maintaining short-circuit protection.
How do I apply the 65kAIC interrupting rating at 480V?
For a 480V application, compare the available fault current at the installation point with the 65kAIC interrupting rating. The available fault current must not exceed that rating.
Why does the three-pole configuration matter for a three-phase motor circuit?
The three-pole configuration provides a pole for each phase conductor in a three-phase circuit. Account for all three phase conductors when planning the circuit layout and terminations.
What mounting method and dimensions should I use when planning the installation?
Plan for DIN rail mounting and a device envelope of 5.5 in high, 3 in wide and 3.7 in deep. Use these dimensions to allocate physical space and plan conductor routing.
What does the 600Y/347VAC voltage rating mean for circuit selection?
The 600Y/347VAC rating applies to grounded-wye AC systems. Match the circuit's voltage and grounding configuration to this rating when selecting the protector.
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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