Siemens E23B090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Quantity
Siemens E23B090 - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for commercial and industrial use, the Siemens E23B090 is a 90-amp, 3-pole molded case circuit breaker. Belonging to the legacy E2 frame series, it delivers reliable thermal-magnetic protection for heavy-duty electrical distribution networks. Designed for bolt-on installation, this breaker mounts into Siemens P2 and P3 panelboards, along with legacy ITE panels. When seeking a modern equivalent, the ED23B090 serves as the exact substitute. It features a 10kAIC rating at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | E23B090-R |
| Series | E2 |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | E2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P2, P3 Panelboards, Legacy ITE Panelboards |
| 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, Alarm Switch |
|---|---|
| Accessories | Load Side 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, Common Trip, Trip-Free Mechanism |
Product FAQs
7 answersWhich panelboards are compatible with the E23B090 circuit breaker?
This bolt-on breaker is designed to fit Siemens P2 and P3 panelboards, as well as legacy ITE distribution boards. It is commonly used to replace older E-frame components in these existing systems.
What is the modern replacement for the E23B090?
The Siemens ED23B090 serves as the modern factory replacement for this legacy E2-frame circuit breaker.
Is the E23B090 interchangeable with older ITE breakers?
Yes, Siemens acquired ITE, and this E2-frame breaker can be used to replace original ITE E23B090 models in legacy panelboards.
Can the E23B090 be used in 480V applications?
No, this breaker has a maximum voltage rating of 240VAC and is not suitable for 480V systems. For 480V applications, a different breaker series is required.
Does this breaker provide ground fault or arc fault protection?
No, the E23B090 is a standard thermal-magnetic breaker equipped with long-time and instantaneous trip functions. It does not provide GFCI or AFCI protection.
How does the E23B090 mount into the panelboard?
This is a bolt-on circuit breaker that secures directly to the panelboard bus using screws. This provides a highly reliable connection typically required in commercial and industrial applications.
Can I use aluminum wiring with the E23B090?
Yes, the factory lugs on this breaker are rated for both copper and aluminum wiring, accepting sizes from 10 AWG to 1/0 AWG.
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