DC Inline Rocker On/Off Switch Cable, 2.5mm x 5.5mm, 20AWG, 3A | RC-T2555

DC Inline Rocker On/Off Switch Cable — 2.5mm x 5.5mm | Part RC-T2555

The RC-T2555 is a reliable inline rocker switch that installs cleanly between your DC power supply and your device — giving you instant manual on/off control without cutting or splicing wires. Featuring a standard 2.5mm x 5.5mm male-to-female pass-through design, it's a perfect plug-and-play solution for higher-voltage or specialized LED lighting, low-voltage electronic appliances, and any DC-powered gear that lacks a built-in power switch.

Technical Specifications

• Part Number: RC-T2555
• Input Connector: 2.5mm (ID) x 5.5mm (OD) Female Jack
• Output Connector: 2.5mm (ID) x 5.5mm (OD) Male Plug
• Wire Gauge: 20 AWG
• Maximum Current: 3A
• Maximum Power: 36W @ 12V / 72W @ 24V
• Switch Type: Inline rocker toggle (on/off)
• Cable Length: 12 inches (30 cm)
• Polarity: Pass-through (does not alter or reverse polarity)

Common Use Cases & Compatible Devices

• Specialized LED light strips, drivers, and holiday displays (12V, 24V)
• CCTV security cameras and monitors utilizing a 2.5mm barrel size
• Small household DC appliances, low-wattage lamps, and DIY electronics
• Hobby projects, microcontrollers, and automation components
• Any low-voltage device with a 2.5mm x 5.5mm DC power input needing a manual power toggle

How It Works

Simply plug the male end of the RC-T2555 into your device’s power input, then connect your power supply's male barrel plug into the female jack of the switch cable. The rocker switch safely interrupts the positive DC power line, allowing you to cut or grant power instantly without repeatedly unplugging the adapter from the wall.

Frequently Asked Questions

Q: What is the maximum wattage this switch can handle?
A: The 20 AWG copper conductors and rocker switch are rated for a maximum current of 3A. At 12V that equals 36W; at 24V it equals 72W. Do not exceed a 3A load to ensure safe, stable operation.

Q: Does this switch interrupt both positive and negative wires?
A: The rocker switch breaks the positive (center) conductor only, which is the standard, safe approach for low-voltage DC inline switches.

Q: Is this cable center positive or center negative?
A: This is a direct pass-through cable. The polarity is entirely determined by your power supply — the switch passes the current through exactly as it receives it without altering it.

Q: Will this work with a standard 2.1mm plug?
A: No. This cable uses a 2.5mm inner diameter pin. While a 2.1mm female plug might physically fit over the 2.5mm plug, it will not make a secure electrical connection. If you need the standard 2.1mm x 5.5mm size, please see our companion model: RC-T2155.