Reverse Polarity RV Jack Switch (Momentary) Function - Reverses motor direction by swapping the motor plus and minus connections to power and ground. It operates as a momentary switch (active while pressed). Compatibility and benefits - Suitable for most RV/trailer power tongue jacks and many fifth wheel jacks. - Can replace switches of some electric awnings. - Compact, easy to install, and supports standard wiring for 12V DC and 250V AC applications. Key specifications - Voltage: 15A 250V AC / 20A 12V DC - Hole size: 44 x 24.6 mm / 1.73" x 0.97" - Switch size: 44 x 24.6 x 45 mm / 1.73" x 0.97" x 1.78" - Wire length: 21.2 cm / 8.3" Use scenarios - Replace a worn switch in an RV tongue jack control panel on a travel trailer or fifth wheel. - Retrofit a polarity reversing switch in an electric awning or similar system needing forward/reverse control. - Install in compatible 12V or 250V systems that require a momentary polarity reversal for motor operation.