MTL5526 - switch operated Relay

Digital output modules
The single channel Digital Output (DO) module range enables on/off devices in a hazardous area to be
controlled from the safe area. Some units are loop powered while others enable solid-state switching by
providing independent power supplies.
MTL5526 - switch operated Relay
Two channel, output
The MTL5526 enables two separate IS circuits in a hazardous area to be relay-contact controlled
by two on-off switches or logic signals in a safe area. Applications include the calibration of
strain–gauge bridges; changing the polarity (and thereby the tone) of an IS sounder; the testing of
IS fire alarms; and the transfer of safe-area signals into an annunciator with IS input terminals not
segregated from each other.
The output–relay contacts are certified as non–energy–storing apparatus, and can be connected to
any IS circuit without further certification, provided that separate IS circuits are such that they would
remain safe if connected together.