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Siemens ED43B110L Molded Case Circuit Breaker
- 110A
- 3 Pole
- Unit Mount
Siemens
ED43B110L
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED43B110L
Quantity
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Siemens ED43B110L - 110A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial switchgear and control applications, the ED43B110L provides 110A of thermal-magnetic protection in a compact ED frame footprint. Unlike standard bolt-on models, this unit-mount MCCB includes both line and load lugs, making it perfect for feed-thru wiring configurations. It is reverse-feed capable and delivers an 18 kAIC interrupting rating at 480VAC. The breaker integrates seamlessly into Siemens P1 through P5 panelboards, offering long-time and instantaneous trip functions.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED43B110L |
| Series | ED4 |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards, Switchboards |
| Wire Gauge | 3 AWG - 3/0 AWG (Cu), 1 AWG - 2/0 AWG (Al) |
| Max Wire | 3/0 AWG (Cu), 2/0 AWG (Al) |
| Min Wire | 3 AWG (Cu), 1 AWG (Al) |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersWhat does the L at the end of the ED43B110L catalog number indicate?
The L suffix indicates that the breaker comes factory-equipped with both line and load side lugs. This makes it ready for feed-thru wiring applications without needing to order separate terminal kits.
Is the Siemens ED43B110L suitable for reverse feed applications?
Yes. Siemens ED frame thermal magnetic circuit breakers are non-directional and are suitable for reverse feed applications.
Is this circuit breaker HACR rated?
Yes, the ED43B110L is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment.
What type of enclosures or panelboards accept the ED43B110L?
This unit mount breaker is designed for individual enclosures, switchboards, and Siemens P1, P2, P3, P4, and P5 panelboards.
What is the difference between a unit mount and a panelboard mount breaker?
Unit mount breakers like the ED43B110L are bolted directly to a mounting surface and use lugs for wire connections on both the line and load sides. Panelboard mount breakers typically bolt or plug directly onto a busbar on the line side.
Where can I find the correct torque specifications for the lugs on this breaker?
The required torque values for the line and load lugs are printed directly on the circuit breaker nameplate. Always use a calibrated torque wrench during installation to ensure secure connections and prevent hazardous conditions.
Are there special requirements when using aluminum wire with the ED43B110L?
The standard lugs accept both copper and aluminum conductors. When using aluminum wire, the manufacturer recommends applying a suitable joint compound to the conductors to reduce the possibility of terminal overheating.
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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.