Square D SDT2150 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Plug-On
Quantity
Square D SDT2150 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Essential for maintaining older electrical systems, this 150-amp main breaker is manufactured specifically for Square D Trilliant load centers. The plug-on unit fits seamlessly into the discontinued grey plastic panelboards, serving as the primary disconnect and overcurrent safeguard for the entire home. Rated at 10kAIC for 120/240VAC applications, it provides a crucial replacement option to keep legacy residential infrastructure operating safely and efficiently.Specifications
| Brand | Square D |
|---|---|
| Part Number | SDT2150 |
| Series | SDT |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | SDT |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Square D Trilliant Load Centers |
| Wire Gauge | 4 AWG-300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 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, Main Breaker |
Product FAQs
7 answersWhat load centers are compatible with the SDT2150 circuit breaker?
This breaker is designed exclusively for Square D Trilliant load centers. Its unique plug-in footprint is not compatible with standard Square D QO or Homeline panels.
Are Square D Trilliant SDT breakers still manufactured?
No, the Square D Trilliant panel system is obsolete. The SDT2150 is used strictly as a direct replacement component for existing Trilliant installations.
Do I need special terminals to terminate 300 kcmil wire on the SDT2150?
No, the factory-installed box lugs are sized to accept conductors ranging from 4 AWG up to 300 kcmil directly.
How does the SDT2150 mount into the panel?
It uses a specialized plug-in connection designed specifically for the Trilliant series bussing, allowing it to snap into place without bolt-on hardware.
Are the trip settings adjustable on the SDT2150?
No, this breaker features a fixed thermal-magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
Can the SDT2150 be used as a main breaker?
Yes, this 150-amp, 2-pole breaker is classified as a main breaker and is used to provide primary overcurrent protection for compatible Trilliant load centers.
Is the SDT2150 suitable for three-phase electrical systems?
No, this is a 2-pole breaker designed strictly for single-phase, 120/240V AC applications.
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