Introduction to the TBX DSS 1625 module

General

The TBX DSS 1625 is a modular base unit comprising 16 50 VA relay outputs. The module is equipped with a terminal block for direct wiring of the preactuators, which can be removed when it is switched off.

The outputs of this module have functions which, in certain cases, are common to a group of channels. Thus, it is possible to assign the 2 channel groups of the module to the various tasks in the application.

Technical specifications

The following table provides the technical specifications of the module.

TBX DSS 1625
Nominal voltage +SV		24 V DC
Supply voltage +SV		19,2 V DC to 30 V DC
Current drawn on +SV of the base module (at 24 V) (with 60 % of the relays active)	if basic unit	125 mA typically
	if extension base unit	negligible
Current drawn at +SV by extension module (at 24 V) (with 60 % of the relays active)		115 mA typically
Immunity to +SV microbreaks (with 60 % of the relays active)		10 ms
Power dissipated at nominal load in the module (with 60 % of the relays active)		3,1 W at 24 V
Dielectric strength between inputs and ground (GND)		1500 V rms - 50/60 Hz for 1 min
Isolation resistance		> 10 MΩ below 500 V DC

Key:
SV	Power supply to module (communication module if present and input interfaces).