The MOD-RY4 is a modular unit with 4 x 250VAC 5A Non-Latching Relay ports.

Front of the module has four detachable screw terminal blocks.

Pinout - Top Row

1. Port 1 Common
2. Port 1 Common
3. Port 1 Load
4. Port 2 Common
5. Port 2 Common
6. Port 2 Load

Pinout - Bottom Row

1. Port 3 Common
2. Port 3 Common
3. Port 3 Load
4. Port 4 Common
5. Port 4 Common
6. Port 4 Load

The rear of every module contains a module port, used to connect the module into the modular controller base unit (DIN-MOD4, etc). The pinout for this port is not published.