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Square D EH24020 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Square D
EH24020
Molded Case Circuit Breaker
Brand
Square D
SKU
EH24020
Quantity
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Square D EH24020 - 20A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EH24020 - 20A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EH24020 |
| Series | EH |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 480Y/277VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 480Y/277VAC, 65kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D EH24020 - 20A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | EH |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 480Y/277VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 480Y/277VAC, 65kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Supplying 20 amps of continuous current capacity, the Square D EH24020 is a two-pole molded case circuit breaker tailored for commercial power distribution. It utilizes fixed thermal and magnetic trip elements to protect against overcurrents. The breaker features a plug-on design that installs into legacy Square D NEHB panelboards. If bolted connections are needed, the EHB24020 is a compatible substitute. It delivers a 14 kAIC rating at 480Y/277VAC and is HACR rated for HVAC applications.Specifications
| Brand | Square D |
|---|---|
| Part Number | EH24020 |
| Series | EH |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 480Y/277VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 480Y/277VAC, 65kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat panelboards accept the EH24020 circuit breaker?
The EH24020 features a plug-on mounting design engineered specifically for legacy Square D NEHB panelboards. It is not compatible with modern NF or NQ panelboards.
What is the difference between the EH24020 and the EHB24020?
Both are 20A, 2-pole breakers for NEHB panelboards, but they use different mounting methods. The EH24020 is a plug-on breaker, while the EHB24020 is the bolt-on equivalent.
Can I replace an EH24020 with a modern EDB series breaker?
No. Modern EDB, EGB, and EJB breakers are designed for NF series panelboards and will not fit into an NEHB chassis. You must use an EH or EHB series breaker to maintain the existing NEHB panelboard.
Is the Square D EH24020 an obsolete breaker?
Yes, the EH series and the NEHB panelboards they mount into are legacy products that are no longer in active production by Schneider Electric.
How does the interrupting capacity of the EH24020 change based on voltage?
The interrupting rating depends on the system voltage. It is rated for 14kAIC on 480Y/277VAC systems, but the rating increases to 65kAIC when applied to 120/240VAC systems.
What wire sizes are compatible with the EH24020 lugs?
The factory-installed load side lugs accommodate 14 to 8 AWG copper conductors or 12 to 8 AWG aluminum conductors.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
7 reviews
- TSThomas S.Verified BuyerReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/6/25Great
Thanks
- JMJim M.ReviewingSiemens EH3B040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/24/23They fit perfectly and saved
They fit perfectly and saved us a lot of money by being able to replace just these breakers
- KHKen H.ReviewingSiemens EH3B030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/12/23Great service
Great service and products fast shipping
- JSJerry S.ReviewingSiemens / ITE EH3B070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/20/22Great Price - Breakers Work Fine
My local Supplier was charging me three times the price for a breaker that i bought on super Breakers.
- MRMatt R.ReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/6/2020 Amp Breaker
Received item quickly and in great shape. Thank you!!!