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Siemens 3VA5170-5EC31-0AA0 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Panel Mount
Siemens
3VA5170-5EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5170-5EC31-0AA0
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Siemens 3VA5170-5EC31-0AA0 - 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
Featuring a TM230 trip unit, this 70A medium-capacity molded case circuit breaker handles demanding fault currents in commercial and industrial facilities. The robust 3VA5 frame delivers consistent performance and current-limiting capabilities. Designed to mount into Siemens 3VA panelboards and switchboards, it provides a seamless fit for modern distribution systems. It also replaces legacy ED63B070 units.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5170-5EC31-0AA0 |
| Series | 3VA5 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 85kA @ 500VDC |
| 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, DIN Rail Adapter |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
6 answersWhich legacy Siemens circuit breakers does the 3VA5170-5EC31-0AA0 replace?
This 3VA5 breaker serves as a direct, modernized replacement for discontinued 70A ED-frame and G-frame models, including the ED63B070, NDK3B070, and HGG3B070.
Does the 3VA5170-5EC31-0AA0 come with terminal lugs installed?
No. The -0AA0 suffix indicates this breaker ships without lugs. You must purchase the appropriate line and load lugs or nut keepers separately based on your wire size and installation requirements.
What type of trip unit is included in the 3VA5170-5EC31-0AA0?
It features a TM230 thermal-magnetic trip unit with LI (Long-Time and Instantaneous) protection. The thermal overload (Ir) is fixed at 70A, while the instantaneous short-circuit protection (Ii) is adjustable to fine-tune coordination.
Which panelboards are compatible with this 70A 3VA5 breaker?
This breaker is designed for installation in modern Siemens 3VA panelboards and switchboards. It is not backward compatible with older panelboards designed exclusively for legacy ED or FD frames without specific retrofit kits.
Can I reverse-feed the 3VA5170-5EC31-0AA0?
Yes. Siemens 3VA5 molded case circuit breakers with thermal-magnetic trip units are UL listed for reverse feed applications, allowing power to be supplied to either the top or bottom terminals.
Is this breaker suitable for use in DC systems?
Yes, it is rated for up to 500V DC. When applying a 3-pole breaker on 500V ungrounded DC systems, it is important to connect the power supply in a series or zig-zag configuration through the poles to ensure voltage is uniformly distributed.
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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