Siemens E21B015 Molded Case Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
Quantity
Siemens E21B015 - 15A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial and industrial power distribution, the Siemens E21B015 provides reliable thermal-magnetic overcurrent protection. It mounts into Siemens P2 and P3 panelboards, along with SB switchboards. As a legacy E-Frame model, this 1-pole breaker is replaced by the newer ED21B015 for modern upgrades. It features a bolt-on connection and includes load-side lugs. Delivering 10 kAIC at 120VAC and 125VDC, the unit is HACR and SWD rated for switching fluorescent lighting loads.Specifications
| Brand | Siemens |
|---|---|
| Part Number | E21B015-R |
| Series | E21B |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 125VDC |
| Frame Type | E2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P2, P3 Panelboards, SB Switchboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, IEC 60947-2, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich Siemens panelboards are compatible with the E21B015 breaker?
This bolt-on breaker is designed for use in Siemens P2 and P3 panelboards, as well as SB switchboards.
What wire gauges are accepted by the terminals on the E21B015?
The factory lugs accept 14 to 10 AWG copper wire or 12 to 10 AWG aluminum wire.
Is the E21B015 rated for direct current applications?
Yes, in addition to its AC rating, this breaker is rated for 125VDC with a 10kA interrupting capacity.
Does the Siemens E21B015 replace older I-T-E or Gould breakers?
Yes, Siemens continues to manufacture this E2 frame breaker under the E21B015 catalog number. It serves as a direct replacement for legacy I-T-E and Gould breakers with the identical part number.
Is there a newer replacement model for the E21B015?
Yes, as a legacy E-Frame model, this breaker is often replaced by the newer ED21B015 for modern panel upgrades.
What type of trip mechanism does the E21B015 utilize?
It features a fixed thermal magnetic trip unit that provides both long-time overload protection and instantaneous short circuit protection.
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