Model SB3a 5-Amp Smart Booster by NCE. NCE has upgraded the SB3 "Smart Booster" to provide for more versatility, more power, and more user options.

Replaces the PCP to upgrade your Power Cab DCC system to 5 amps of power. Additional 5-Amp boosters (DB3a) may be added to the SB3a for even more power handling on larger layouts (sold separately).

Features:

• Operate up to 4 CABs (address range 2 through 5) with up to 6 recalls each
• Operate up to 12 trains simultaneously
• Cabs can be unplugged and used in true walk-around fashion
• Works with auto reversers and circuit breakers
• "Booster only" mode to use with other systems

Specifications:

• Input 14-18vAC (50/60Hz, 5+ Amp), or 18-24vDC
• Output 5.0 Amp (5.1 maximum continuous)

Requires a separate power supply such as the NCE #P515 or DCC #MF615 (sold separately). The SB3a does NOT have a programming track output.