Digital Outputs (Relays, Triacs); Admissible Relay Load; Admissible Triac Load - Siemens Desigo TRA Engineering, Mounting And Installation Manual

Type
Data sheet
General use
Fan stages
Fan release
Electric reheater
Light
Blinds
Type
Data sheet
Max. continuous load
Short time load per triac for
starting power in cold condition
Field supply AC 24 V
Field supply DC 24 V
Sum for device
44 / 84
Siemens
Building Technologies
8.3

Digital outputs (relays, triacs)

8.3.1

Admissible relay load

TXM1.6R... TXM1.6RL
N8175 N8177
4 (3) A
4 (3) A
4 (3) A
(4 (3) A)
10 A
8.3.2

Admissible triac load

TXM1.8T
Signal type N8179
BO, MO 8 x 3 VA
4 x 6 VA
3-position 4 x 6 VA
PWM 0...100%, 8 x 3 VA
Spring return 4 x 6 VA
PWM 5...50% 8 x 3 VA
4 x 6 VA
12 VA
max.90s
240 VA
--
24 VA without
field supply
1)
By choosing appropriate signal types, multiple actuators can be run at the same
time because of staggered activation of the triacs. Details see below.
2)
Thermal actuators with a starting power of 6 VA in cold condition:
If driven by a 5...50% PWM signal, they only count for 3 VA.
3)
T 10A fuse in the PXC3 / the power supply module / the bus connection module.
Caution! Use cable cross section suited for 10 A according to local
regulations.
4)
Each triac has a current limitation. No fault messages in case of overload or
short circuit.
Desigo TRA Engineering, mounting and installation
Electrical features of inputs & outputs
TXM1.8RB DXR2...
N8178 N9204ff
4 (3) A
4 (3) A
4 (3) A
(4 (3) A)
3 A
DXR2...
AC 230 V
N9204, N9206
3) 1)
4 VA
3) 1)
4 VA
3) 1)
4 VA
3) 1)
2 x 4 VA
2) 2)
6 VA
max.300s
3) 1)
4 VA
--
1)
4 VA
RXM21.1 RXM39.1
N3835 N3836
5 (4)
5 (4)
(Q34)
1,8 kW
ohm load
(Q14)
DXR2... RXM21.1
4)
AC 24 V AC 230 V
N9205, N9207 N3835
6 VA 2 x 4.5 VA
6 VA 2 x 4.5 VA
6 VA 2 x 4.5 VA
2)
2 x 6VA 2 x 4.5 VA
2)
6 VA 12 VA
6 VA --
xx12P -- --
xx18 2.4 W
xx12P 72 VA 9 VA
xx18 88 VA
CM111043en_09
2016-02-22
2)