Square D | SDT215 | Circuit Breaker | 15A | 2-Pole | 240V | Plug-In

The Square D SDT215 circuit breaker is a plug-in, two-pole protection device engineered for reliable 15-amp service at 240 volts. When you need a precise match for your Square D panel, this SDT215 unit is designed to drop in quickly, supporting maintenance, retrofit, and replacement projects with minimal downtime.

• Amperage: 15 A
• Poles: 2-Pole
• Voltage: 240 V
• Connection: Plug-In
• Part reference: SDT215

Why choose the SDT215 for your panel? This specific part number is the clearest indicator of compatibility, helping you avoid mismatched breakers that can impact protection and performance. It’s purpose-built for Square D panels that accept SDT-series plug-in breakers, making it an efficient choice for both routine maintenance and strategic panel upgrades.

Ideal use cases

• Maintenance and service on existing Square D installations where a 15 A, 240 V, 2-pole plug-in breaker is appropriate.
• Retrofits and replacements in panels that explicitly list SDT-type breakers as compatible.
• Having a ready-for-service spare on hand to minimize downtime during routine electrical work.

How to verify fit

Before ordering, confirm that your panel accepts SDT-series plug-in breakers and that the 15 A, 240 V, 2-pole configuration matches your circuit requirements. The SDT215 part number is the best reference for compatibility, helping ensure safe, reliable operation in your electrical system.

Practical installation tips

1. Power down the affected section of the panel (shut off the main if required) and verify there is no voltage present.
2. Remove the existing breaker or prepare the empty slot for a plug-in unit.
3. Align the SDT215 with the panel’s bus bars, ensuring the plug-in terminals engage securely.
4. Snap the breaker firmly into place and restore power to test the circuit protection activity.

For reliable protection and straightforward replacement in Square D systems, the SDT215 delivers a focused, no-surprise solution. Keep in mind that fit and ratings must match your panel specifications, and using the exact part number helps safeguard against compatibility issues over the life of the installation.