3x pieces Siemens PTM1.4D20 Signaling Module Module PTM1 4D20

Siemens PTM1.4D20 Signaling Module

The signaling module is used to detect signaling signals that come from permanent contact of potential-free contacts of various control and switching devices in the system. The messages can be triggered by:

• Two-point sensors such as thermostats, pressure switches, etc.
• Signaling and auxiliary contacts of contactors and switches
• Any contacts of Siemens devices and devices from other manufacturers
• Electronic switches such as transistors and optocouplers

Technical data
Operating voltage AC 24 V ± 20 %
Safety extra-low voltage SELV or
Protective extra-low voltage PELV according to HD 384
Frequency 50 Hz / 60 Hz
Power consumption 3 VA
I/O module supply via P-bus DC 24 V (against G0)
Load units 1 (each 12.5 mA)
Contact query
Voltage DC approx. 30 V
Current 8 mA
Permissible transition resistance at
closed contacts max. 100 Ω (series connection)
Permissible insulation resistance at
open contacts min. 50 kΩ (parallel connection)
Signaling lines
Maximum length 300 m
Minimum wire-∅ 0.6 mm

Item condition: used

Quantity: 3x pieces