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Siemens E23B070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Siemens
E23B070
Molded Case Circuit Breaker
Brand
Siemens
SKU
E23B070
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Siemens E23B070 - 70A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial environments, the Siemens E23B070 is a 70A, 3-pole molded case circuit breaker. It belongs to the legacy E2 frame family, offering dependable thermal-magnetic protection for 240VAC circuits. Equipped with a bolt-on interface, it integrates into Siemens P2 and P3 panelboards, along with vintage ITE enclosures. Facilities looking for current equivalents can use the ED23B070. The breaker provides a 10kAIC rating at 240V, accepts 10-1/0 AWG wire, and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | E23B070-R |
| Series | E2 |
| Amperage | 70A |
| 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
5 answersCan I install the E23B070 in a standard residential load center?
No, the E23B070 is a commercial bolt-on molded case circuit breaker. It is specifically designed for Siemens P2 and P3 panelboards, as well as legacy ITE panelboards, rather than standard residential plug-on load centers.
What is the modern replacement for the legacy E23B070 breaker?
Facilities looking for a current equivalent can use the Siemens ED23B070. It provides the same 70A capacity, 240VAC rating, and bolt-on mounting configuration.
What type of protection does the LI trip function provide?
The LI designation indicates that the thermal-magnetic trip unit includes fixed long-time (L) protection for sustained overloads and fixed instantaneous (I) protection for immediate short-circuit response.
What type of conductors can be used with the E23B070 lugs?
The factory-installed lugs are dual-rated for both copper and aluminum wire, accepting conductor sizes from 10 AWG up to 1/0 AWG.
Is this breaker suitable for HVAC applications?
Yes, the E23B070 is HACR rated, meaning it has been tested and approved for the specific electrical demands of heating, air conditioning, and refrigeration equipment.
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