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Siemens 3VA5270-5EC31-0AA0 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Panel Mount
Siemens
3VA5270-5EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5270-5EC31-0AA0
Quantity
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Siemens 3VA5270-5EC31-0AA0 - 70A 3 Pole Molded Case Circuit Breaker
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70A 3 Pole Molded Case Circuit Breaker
70A 3 Pole Molded Case Circuit Breaker
70A 3 Pole Molded Case Circuit Breaker
Description
Engineered for industrial power distribution, the Siemens 3VA5270-5EC31-0AA0 is a 3-pole, 70A molded case circuit breaker from the SENTRON family. It provides reliable line protection within a robust 250A frame design. This panel-mount MCCB installs into Siemens 3VA panelboards and switchboards. It serves as a direct upgrade for legacy FXD63B070 breakers. Rated 35kAIC at 480V, it features a TM230 trip unit with fixed thermal and adjustable magnetic settings. Lugs are not included.Specifications
| Brand | Siemens |
|---|---|
| Series | 3VA5 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Frame Type | 3VA52 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 3VA Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment, Busbar System |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, HACR Rated |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism |
Product FAQs
5 answersWhat legacy Siemens breaker does the 3VA5270-5EC31-0AA0 replace?
This 3VA52 frame breaker serves as a direct, modern replacement for the legacy Siemens FXD63B070 molded case circuit breaker.
What are the adjustment parameters for the TM230 trip unit on this breaker?
The TM230 thermal-magnetic trip unit features a fixed thermal setting for long-time overload protection at 70 amps, and an adjustable magnetic setting for instantaneous short-circuit protection that can be dialed between 5 and 10 times the continuous current rating.
What is the maximum frame capacity for this breaker?
It is built on the Siemens 3VA52 frame, which has a maximum physical capacity of 250 amps, even though this specific unit is factory-rated for 70 amps.
What equipment is this breaker designed to be installed in?
It is engineered for panel-mount applications within Siemens 3VA panelboards and switchboards.
Can the 3VA5270-5EC31-0AA0 be reverse fed?
Yes, this thermal-magnetic breaker is reverse feed capable, making it suitable for applications where backfeeding is required.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.
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Rating
8 reviews
- 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
- DTDENNIS T.Verified BuyerReviewingSiemens 3VA5220-6ED31-0AA0 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/15/26Breaker Purchase
Great price and fast shipment