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Siemens 3VA5140-4ED21-0AA0 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Panel Mount
Siemens
3VA5140-4ED21-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5140-4ED21-0AA0
Quantity
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Siemens 3VA5140-4ED21-0AA0 - 40A 2 Pole Molded Case Circuit Breaker
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Description
A versatile solution for industrial switchboards, the Siemens 3VA5140-4ED21-0AA0 is a 2-pole, 40A molded case circuit breaker. It is equipped with fixed thermal and fixed magnetic trip functions for precise LI protection. This breaker installs into modern Siemens 3VA panelboards and can replace discontinued ED42B040 units in legacy P1 and P2 panels when paired with the proper mounting kit. It delivers a 25kAIC rating at 480VAC and features a current-limiting, trip-free mechanism.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5140-4ED21-0AA0 |
| Series | 3VA5 |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 50kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens 3VA Panelboards, Switchboards; Siemens P1, P2 Panelboards (with adapter) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment, DIN Rail Adapter, Lug Kits |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5, HACR Rated |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Current Limiting, Non-Interchangeable Trip, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break |
Product FAQs
7 answersWhat legacy Siemens breaker does the 3VA5140-4ED21-0AA0 replace?
This 3VA5 series breaker is the modern replacement for the discontinued ED42B040. To install it in legacy Siemens P1 or P2 panelboards, you will need the appropriate mounting adapter kit.
Which Siemens panelboards accept this 2-pole breaker?
It installs directly into modern Siemens 3VA panelboards and switchboards. It is also compatible with Siemens P1 and P2 panelboards when used with the correct mounting adapter.
Can the 3VA5140-4ED21-0AA0 be reverse fed?
Yes. Like all Siemens 3VA5 thermal-magnetic circuit breakers, this unit is UL listed for reverse feed applications, which allows for flexible installation orientations.
Is this 40A circuit breaker HACR rated?
Yes, it carries an HACR rating, meaning it is certified for use in heating, air conditioning, and refrigeration applications.
What type of trip unit does this breaker use?
It is equipped with a TM210 thermal-magnetic trip unit. This provides fixed long-time (Ir) and fixed instantaneous (Ii) protection for reliable overload and short-circuit defense.
How is this breaker rated for direct current (DC) applications?
This 2-pole breaker is suitable for DC systems up to 250VDC. When applied on 250VDC systems, it provides an interrupting rating of 50kA.
What frame size is this 40A breaker built on?
It is built on the Siemens 3VA51 frame, which supports a maximum capacity of 125 amps.
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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