Square D SDT115 Miniature Circuit Breaker
- 15A
- 1 Pole
- Plug-On
Quantity
Square D SDT115 - 15A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
A drop-in replacement for discontinued Square D Trilliant load centers, this 15-amp, single-pole breaker provides vital overcurrent protection for older residential applications. It allows homeowners and electricians to safely maintain existing infrastructure without requiring a complete panel upgrade. This plug-on breaker fits securely into Trilliant panelboards and handles standard 120/240VAC loads with a 10 kAIC rating.Specifications
| Brand | Square D |
|---|---|
| Series | SDT |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Square D Trilliant Load Centers |
| Wire Gauge | 14-8 AWG |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Product FAQs
6 answersAre Trilliant breakers interchangeable with Square D QO or Homeline breakers?
No, Trilliant breakers like the SDT115 have a unique physical footprint and plug-on design. They are exclusively compatible with Trilliant load centers and cannot be installed in QO or Homeline panels.
Is the Square D Trilliant SDT series still in active production?
No, the Trilliant line is a legacy residential series that has been discontinued by Schneider Electric. Sourcing the SDT115 allows electricians to safely maintain existing Trilliant infrastructure without a full panel replacement.
Does the SDT115 include GFCI or AFCI protection?
No, the SDT115 is a standard thermal-magnetic circuit breaker. It provides essential overload and short-circuit protection but does not feature ground fault or arc fault capabilities.
What applications are suitable for a 15-amp, single-pole Trilliant breaker?
This breaker is typically installed in legacy Trilliant panels to protect standard 120V residential lighting circuits and general-purpose receptacles that require 15-amp overcurrent protection.
How should the load wire be terminated on the SDT115?
The load wire is secured using the integrated box lug terminal. Always ensure the connection is properly torqued to the specifications printed directly on the breaker label to prevent arcing and overheating.
What does the LI trip function indicate on the SDT115?
The LI designation indicates that the breaker provides Long-Time and Instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous function trips immediately during a short circuit.
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