Gaugemaster TLU Seep Magnetic Tension Lock Uncoupler
The electromagnet coil pushes the long pin up to raise the uncoupler ramp used with tension lock couplings. This unit can be mounted beneath the baseboard, with only a hole suitable for the activator pin needing to be drilled through to the uncoupler ramp above.
Antics recommends the use of a push-to-make pushbutton or spring-biased toggle switch to operate this uncoupler to ensure that it is de-energised and returned to the lowered position promptly after use.