LOYTEC L-MBUS20, User Manual, Page: 14 / 16

L-MBUSxx User Manual 14 LOYTEC
4 Specifications
4.1 L-MBUSxx
4.1.1 Physical and Electrical Specifications
Characteristics Value
Supply Voltage 24 VDC or 24 VAC ±10%
Power Consumption L-MBUS20: 0.45 A @ 24 VDC
L-MBUS80: 0.65 A @ 24 VDC
Max number of M-Bus slaves L-MBUS20: 20
L-MBUS80: 80
In rush current up to 950 mA @ 24 VDC
Operating Temperature (ambient) 0

C to + 50

C
Humidity (non condensing)
operating
10 to 90% RH @ 50

C
Humidity (non condensing) storage
90% RH @ 50

C
Enclosure Installation enclosure 6 TE, DIN 43 880
Environmental Protection IP 40 (enclosure); IP 20 (screw terminals)
Installation DIN rail mounting (EN 50 022) or wall mounting with
optional DIN rail
Supported bit rates 300 bits/s – 9600 bits/s
Bus quiescent current L-MBUS20: 0-30 mA
L-MBUS80: 0-120 mA
Resistance to short circuit on
M-Bus continuous
Over current protection
Level:
Minimum switch off time:
L-MBUS20: 190 mA
L-MBUS80: 310 mA
100 ms
Bus voltage when idle 35 V +/-5%
Table 6 Physical and Electrical Characteristics.
Version 1.0 LOYTEC electronics GmbH