Siemens E22B020 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Unit Mount
Siemens
E22B020
Molded Case Circuit Breaker
Brand
Siemens
SKU
E22B020
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Siemens E22B020 - 20A 2 Pole Molded Case Circuit Breaker
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20A 2 Pole Molded Case Circuit Breaker
20A 2 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial applications, this 20A unit mount breaker provides essential long-time and instantaneous trip functions. It serves as an exact fit for legacy Siemens panelboards, switchboards, and motor control centers requiring E-Frame components. While originally standard issue, it has since been superseded by the ED22B020 model, making this specific unit highly valuable for maintaining existing infrastructure without requiring extensive panel modifications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | E22B020-R |
| Series | E |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 125/250VDC |
| Frame Type | E2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 12-10 AWG (Cu) |
| Max Wire | 10 AWG |
| Min Wire | 12 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich panels and enclosures accept the Siemens E22B020?
This legacy E2 frame breaker is designed as an exact fit for older Siemens and ITE panelboards, switchboards, and motor control centers that require bolt-on E-Frame components.
What is the direct replacement for the E22B020 if I need to upgrade?
The E22B020 has been superseded by the newer ED22B020 model. However, installing the original E22B020 is often preferred for maintaining existing infrastructure, as it avoids the need for panel modifications to accommodate the newer frame.
How does the E22B020 mount into the enclosure?
This breaker utilizes a unit mount, bolt-on connection. It secures directly to the panel bus or mounting bracket using mechanical fasteners rather than a plug-on mechanism.
What are the wire gauge requirements for the E22B020 terminals?
The included load side lugs are rated strictly for copper (Cu) conductors, accepting wire sizes between 12 AWG and 10 AWG.
How does the thermal-magnetic trip unit on the E22B020 operate?
The breaker uses a fixed thermal element for long-time overload protection and a fixed magnetic element for instantaneous short-circuit protection. Neither the thermal nor the magnetic trip points are field-adjustable.
Can the E22B020 be used in direct current (DC) systems?
Yes. While primarily used in 240VAC systems, this breaker is also rated for 125/250VDC applications, where it provides a 5kA interrupting capacity.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 25 reviews.
Total 5 star reviews: 24 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 30 most recent customer reviews
Last updated 8/15/25
Customers say this electrical breaker meets their expectations in terms of functionality and performance. Many reviews mention quick delivery times and competitive pricing. While one user reports voltage detection issues, most find these units work effectively. Common feedback includes satisfaction with product condition upon arrival and straightforward installation. Reviews indicate availability of specialty models that are often hard to find through local suppliers.
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Rating
25 reviews
- MGMike G.Rated 5 out of 5 stars11/27/23Just what we needed and
Just what we needed and fast shipping
- TETimothy E.ReviewingSquare D HU364 Safety SwitchI recommend this productRated 5 out of 5 stars5/9/22quick response!!!!
quick response!!!!
- DGDavid G.ReviewingSquare D HU362 Safety SwitchI recommend this productRated 5 out of 5 stars4/13/22Great service and fast shipping
Great service and fast shipping
- WEWarren E.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars3/1/22600v Disconnect
They have GREAT Inventory! Even my Local suppliers did not have them in stock.
- SKSaki K.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars2/20/22Good product
Good product in good price