The 48V Relay controls whether the coin hopper collects or refunds coins.

- Compatible with all Protel or Elcotel payphones with a GTE/Quadrum style housing (right side coin slot).
- If replacing a relay/escrow unit which does not utilize a standard coin hopper, or if you would like an entirely new relay/hopper combination, you will need to add the coin hopper option to your order.
- Mounting hardware included.