Bosch D127 Reversing Relay Module

The Bosch D127 is a reversing relay module built to provide dual alarm reporting. It supports direct wire line alarm transmission, complying with insurance and municipal standards.

When installed in an enclosure with a compatible control panel, the D127 manages two separate alarm conditions. It offers contact reversal for one alarm state using a flip-flop (reversal/normal/reversal) operation mode. The output can be configured for dry switching or voltage/current reversal based on the requirements of the monitoring station.