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Siemens ED42B070L Molded Case Circuit Breaker
- 70A
- 2 Pole
- Unit Mount
Siemens
ED42B070L
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED42B070L
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Siemens ED42B070L - 70A 2 Pole Molded Case Circuit Breaker
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Description
Part of the Sentron family, this 70-amp molded case circuit breaker provides robust long-time and instantaneous trip functions for commercial applications. It serves as a dependable unit-mount solution for individual enclosures, motor control centers, and switchboards. While this specific ED4 frame model is transitioning to the newer 3VA5 series (part 3VA5170-4ED21-0AA0), it remains a vital component for maintaining existing infrastructure. The device features a 65kA interrupt rating at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED42B070L |
| Series | ED4 |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, Individual Mounting, Switchboards, Motor Control Centers |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| 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 |
|---|---|
| Accessories | Line & Load Lugs (LN1E100) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersIs there a newer replacement series for the ED42B070L?
Yes, Siemens is transitioning the legacy ED4 frame to the modern 3VA5 series. The direct replacement for this 70A, 2-pole breaker is catalog number 3VA5170-4ED21-0AA0.
What does the "L" suffix indicate on the ED42B070L catalog number?
The "L" suffix signifies that the breaker is supplied with factory-assembled line and load lugs.
What wire sizes are compatible with the factory lugs on this breaker?
The included lugs accept copper or aluminum conductors ranging from 10 AWG to 1/0 AWG.
Where is this unit mount breaker typically installed?
As a feed-thru, unit mount breaker, it is designed to be bolted directly into individual enclosures, switchboards, and motor control centers rather than snapping onto a panelboard bus.
What is the interrupting capacity of this breaker on a DC circuit?
When applied to a 250VDC system, this breaker provides a 30kA interrupting rating.
Can the ED42B070L be reverse fed?
Yes. Because the ED frame utilizes a fixed, non-removable thermal-magnetic trip unit, it is suitable for reverse-feed applications under UL 489 guidelines.
What type of protection does the LI trip function provide?
The LI designation indicates that the thermal-magnetic trip unit delivers Long-Time overload protection and Instantaneous short-circuit protection. Both the thermal and magnetic trip points are fixed on this specific frame.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 20 reviews.
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Rating
20 reviews
- GGGerson G.Verified BuyerReviewingSiemens ED43B100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Siemens ED43B100 breeaker
Breaker arrived even earlier than expected. In great condition and very well packaged. Customer service was helpful and resolve all questions.
- KLKristofer L.Verified BuyerReviewingSiemens ED43B015 - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/1/26Product delivered was perfect.
This was my first order with Super Breakers so you just don't know what you will get. My products came quickly and just as described. I was very pleased with my experience and will use them in the future.
- SWScott W.Verified BuyerReviewingSiemens ED43S100A - 100A 3 Pole Molded Case SwitchI recommend this productRated 5 out of 5 stars6/10/26Great transaction
We received the breaker we needed in great shape and in a timely manner!
We will defiantly be ordering from Super breaker again.
- KKKurt k.Verified BuyerReviewingSiemens ED43B080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/18/26Fast shipping
I needed the breaker quickly for a job. It arrived earlier than I expected which kept the job moving along.
- MSmark s.Verified BuyerReviewingSiemens ED41B020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/16/26Exactly what I ordered
I ordered 12 Siemens breakers. My order was exactly what I ordered, They came fast, and everything was in good shape. I will be using superbreakers in the future.