Siemens B1515H 15/15A Tandem Miniature Circuit Breaker
- 15/15A
- 1 Pole
- Bolt-On
Quantity
Siemens B1515H - 15/15A Tandem Miniature Circuit Breaker
New
Quantity
Description
Part of the BTH series, the Siemens B1515H provides two independent 15A circuits while occupying a one-inch, single-pole space. Built for commercial applications, it allows facilities to double circuit capacity without upgrading the panelboard. It mounts into Siemens P1, P2, and P3 lighting panels as a drop-in replacement for 1-pole BL series breakers. Rated at 22kAIC, it features a bolt-on connection and thermal-magnetic trip technology for reliable overcurrent protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B1515H |
| Series | BTH |
| Amperage | 15/15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-12 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 12 AWG (Cu), 10 AWG (Al) |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Tandem |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Tandem |
Product FAQs
6 answersWhat panelboards are compatible with the Siemens B1515H?
This bolt-on tandem breaker is designed for commercial and industrial applications using Siemens P1, P2, and P3 panelboards. It is not compatible with standard residential plug-on load centers.
How many panel spaces does the B1515H require?
As a tandem breaker, the B1515H provides two independent 15-amp circuits but only requires a single one-inch pole space in the panelboard.
Will a fault on one circuit trip both handles on the B1515H?
No. The B1515H is a non-common-trip breaker. Each 15-amp leg operates with its own thermal-magnetic trip mechanism, meaning an overload or short circuit on one leg will not trip the other.
Can the B1515H be used for 240V loads requiring a two-pole breaker?
No. The B1515H provides two independent 120V circuits. It does not have an internal common trip and cannot be used to supply a single 240V load that requires simultaneous disconnection of both ungrounded conductors.
What does the "H" in the B1515H part number signify?
The "H" designates a high interrupting capacity. While standard versions offer 10kAIC, the B1515H provides a 22kAIC rating at 120/240VAC for systems requiring higher fault current protection.
What is the difference between the Siemens B1515 and the B1515H?
The B1515 is the standard version with a 10kAIC rating, while the B1515H is the high-interrupting version rated for 22kAIC at 120/240VAC. Both share the same physical dimensions and bolt-on mounting style.
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