DC Inline Rocker On/Off Switch Cable, 2.1mm x 5.5mm, 20AWG, 3A | RC-T2155
DC Inline Rocker On/Off Switch Cable — 2.1mm x 5.5mm |
Part: RC-T2155
The RC-T2155 is a simple, reliable inline rocker switch that installs between your DC power supply and your device — giving you instant on/off control without modifying any wiring. With a standard 2.1mm x 5.5mm male-to-female pass-through design, it's a plug-and-play solution for LED lighting, low-voltage lamps, and any DC-powered device that lacks a built-in power switch.
Technical Specifications
- Part Number: RC-T2155
- Input Connector: 2.1mm x 5.5mm Male Plug
- Output Connector: 2.1mm x 5.5mm Female Jack
- 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 polarity)
Common Use Cases & Compatible Devices
- LED light strips and LED accent lighting (12V, 24V)
- Low-wattage DC lamps and under-cabinet lights
- CCTV cameras and security lighting
- Small DC fans and ventilation systems
- Hobby electronics, Arduino/Raspberry Pi projects
- Any device with a 2.1mm x 5.5mm DC power input that needs a manual on/off switch
How It Works
Simply plug the male end of the RC-T2155 into your power supply's output, then plug your device's power cable into the female jack. The rocker switch interrupts the DC power line, giving you full on/off control. No tools, no wiring, no modifications required.
Frequently Asked Questions
Q: What is the maximum wattage this switch can handle?
A: The 20 AWG conductors and rocker switch are rated for 3A maximum. At 12V that's 36W; at 24V that's 72W. Do not exceed 3A to avoid overheating.
Q: Will this work with my 12V LED strip?
A: Yes, as long as your LED strip draws 3A or less. This is suitable for most single-color LED strips up to about 36W at 12V.
Q: Does this switch interrupt both positive and negative wires, or just one?
A: The rocker switch interrupts the positive (center) conductor only, which is the standard approach for DC inline switches.
Q: Is this center positive or center negative?
A: The connector is a standard 2.1mm x 5.5mm barrel. Polarity passes through from your power supply — the switch does not alter it.
Q: Is there a version with a 2.5mm connector?
A: Yes — see our RC-T2555 for the 2.5mm x 5.5mm version.
