ABB / Thomas & Betts RC38-15 Miniature Circuit Breaker
- 15A
- 2 Pole
- Plug-On
Quantity
ABB / Thomas & Betts RC38-15 - 15A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
Part of the Q-Line family, this 15A, 2-pole miniature circuit breaker delivers essential thermal-magnetic protection for residential 120/240V circuits. The thin-series design measures just 0.75 inches wide. Designed for legacy infrastructure, it installs into Zinsco and Sylvania load centers. This unit serves as an exact replacement for the obsolete Q215, allowing electricians to safely service older panels. Featuring a 10 kAIC rating, it includes a common trip function.Specifications
| Brand | ABB / Thomas & Betts |
|---|---|
| Part Number | RC38-15-R |
| Series | RC |
| Amperage | 15A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Zinsco Load Centers, Sylvania Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| 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 | CSA C22.2 No. 5, UL 489 |
|---|---|
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip |
Product FAQs
5 answersWhat electrical panels are compatible with the RC38-15 circuit breaker?
This breaker is designed as a direct replacement for legacy Zinsco and Sylvania load centers that accept RC-style plug-in breakers. It allows electricians to safely service older infrastructure without replacing the entire enclosure.
What obsolete circuit breakers does the RC38-15 replace?
This unit serves as an exact replacement for the obsolete Zinsco and Sylvania Q215 breakers. It is also a direct alternative to aftermarket replacement options like the Connecticut Electric UBIZ0215.
What wire sizes are accepted by the box lugs on this 15A breaker?
The terminals accommodate 14-8 AWG copper wire or 12-8 AWG aluminum wire. Always ensure the selected wire gauge matches the 15-amp circuit rating and complies with local electrical codes.
Is the 10 kAIC rating sufficient for residential Zinsco panels?
Yes, the 10 kAIC interrupting rating at 120/240V AC meets the standard fault current requirements for most legacy residential and light commercial Zinsco or Sylvania load centers.
Are there any special safety considerations when installing breakers in older Zinsco panels?
Yes. Legacy Zinsco load centers are known for busbar degradation and arcing issues. Before installing a replacement breaker, a licensed electrician must thoroughly inspect the panel's busbars for signs of pitting, burning, or corrosion to ensure a secure connection.
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