Technical Data; General Data - Relay PW250 User Manual

4. Technical data

4.1 General data

Operating voltage
Power consumption
Operating temperature range
M-Bus voltage
M-Bus basic current
Overcurrent threshold
Internal bus resistance
Communication speeds
Bit threshold
Collision threshold
Maximum cable length for
recommended cable type
JYSTY 1 x 2 x 0,8 mm
Galvanic isolation
Housing
LED indicators
Interfaces
Terminals
PW250 · User Manual Version 1.1 – 11 / 2019
110 .. 240 VAC, 47 .. 63 Hz
max. 100W
0 .. 45°C
42 V ( Mark), 28V (Space)
max. 375 mA
> 500 mA
8 Ohm
300 .. 38400 Baud
typ. 7,0 mA
typ. 48 mA
Total (all wires): 1km (9600 baud), 4km (2400 baud), 10km (300 baud)
Max. distance to slave (250 slaves at the end of the cable): 350 m
Max. distance to slave (250 slaves equally distributed): 900 m
All interface are isolated from M-Bus and power supply. The Repeater input is
additionally isolated from the other interfaces.
Light-grey ABS plastic, protective class IP52
H x W x D: 229 x 204 x 76 mm
Mounting on a rail or wall, optional cylinder lock
Power, communication master, slave, warning, short circuit M-Bus, M-Bus activity
10/100 Mbit Ethernet, USB device, RS232C (SUB-D9), RS232C (terminals), RS485,
Repeater (M-Bus IN)
3 pairs screw terminals for M-Bus, 3-pin screw terminal for RS232C, each 1 pair
screw terminals for RS485 and Repeater, 4-pin screw terminal for power supply
PW250
15