Siemens ED41B090 Molded Case Circuit Breaker
- 90A
- 1 Pole
- Bolt-On
Quantity
Siemens ED41B090 - 90A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
The Siemens ED41B090 molded case circuit breaker provides overload and short-circuit protection with thermal magnetic tripping. Rated 90A, 120/277VAC and 125VDC, this 1-pole breaker has an interrupting rating of 22kAIC at 277VAC. It features an ED frame, ED4 series construction and bolt-on mounting. Fixed thermal and fixed magnetic trips provide long-time and instantaneous functions. Approvals include UL and IEC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED41B090 |
| Series | ED4 |
| Amperage | 90A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 22kA @ 277VAC, 30kA @ 125VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens SB Switchboards, Siemens Sentron Panelboards |
| Wire Gauge | 6-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
8 answersHow should I use the 90A rating when selecting this breaker?
The Siemens ED41B090 has a rated current of 90A. Select it based on the circuit load and conductor protection requirements, rather than treating 90A as an instantaneous trip threshold.
What circuit voltages is this breaker rated for?
The voltage ratings are 120/277VAC and 125VDC. Select the breaker according to both the circuit voltage and whether the supply is AC or DC.
How does the 22kAIC rating affect fault-current selection?
The interrupting rating is 22kAIC at 277VAC. For a 277VAC installation, the available fault current at the installation point must not exceed this rating.
Can I adjust the thermal or magnetic trip settings?
Both the thermal and magnetic trip settings are fixed. The thermal element provides long-time overload protection, while the magnetic element provides instantaneous response to high fault current. Choose this breaker when fixed trip settings suit the circuit protection requirements.
What conductors can I terminate at the load-side lug?
The conductor range is AWG 6 through AWG 1/0 for copper or aluminum conductors. Select a conductor within that range, then verify its ampacity for the circuit and installation conditions before terminating it at the load-side lug.
How is this breaker secured during installation?
This breaker uses bolt-on mounting, so installation involves securing it with a bolted connection. Include fastening and tightening in the installation procedure.
What dimensions should I use when planning the equipment layout?
The breaker measures 6.35 in high, 1 in wide and 3.92 in deep. Use these dimensions to plan the equipment layout and installation access.
When should I select this single-pole breaker?
This is a single-pole breaker with a phase rating of 1. Select it for a single-phase circuit whose protection arrangement calls for one protected pole.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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.