Brand: Seep Part Number: GMC-BPPM20 Scale / Type: N / HO / OO Scales Designed with easy installation in mind, PM20 is placed parallel to your point-work and operates equally well orientated either way. PM20 works well with all popular modelling scales, and with the leading brands of track in the UK. The magnetic coils are high-efficiency for reliable operation, needing much less current than most other brands. PM20 also has a plug-in harness that is very easy to use. Mounting screws are included. Fitting the PM20 is simplicity itself, because the harness is pre-terminated, and the PM20 tie-bar linkage just drops over the point 'tie-bar' pin. PM20 also has manual operation, so you can test it before fixing it down. If you fix your points directly to the board - You can simply fix the motor directly onto the board with the screws provided after placing the link over the end of the point tie-bar. If you use track-bed under your points - If the track bed is thin, you may be able to mount PM20 directly, but test first. Otherwise make a pad from card or similarly firm material to raise the PM20 to the correct height before mounting it. Wiring the PM20 - This is easy, as the PM20 features a reversible 3-way plug-in connector. the included harness can be extended with GMC-PM51 Point Motor Wire and GMC-PM50 Connection Boxes. Applying power to PM20 - This product is for low voltage use only, between 16v and 24v (AC or DC are both okay). Please use 1amp supply or greater. Ideally also use a Capacitor Discharge Unit such as the GMC-CDU or similar for optimum performance. As with all solenoids, this motor is designed for use with passing contact switches. Connection to a standard On-On swich (or a permanent connection or power source) will lead to irreversible damage. This pack contains 5 PM20 Point Motors, 5 Harnesses, Screws and instructions. Point Motor Measurements: Length: 68mm Width: 22mm Depth: 9mm