Relay outputs
Number of relays
DHB-402
DHB-424
2
4
Maximum voltage, open contacts
250 V ~
Maximum current
0.5 A
Maximum switching power
1500 W or 1250 VA
Electrical working life (250 VAC / 5 A)
1×10
5
cycles
Mechanical working life
1×10
6
cycles
Open collector output (DHB-424 model)
Type
NPN
Voltage / Current
30 V
/ 30 mA
Communications (DHB-424 model)
Field bus
RS-485
Communications protocol
Modbus RTU
Baud rate
4800-9600 - 19200-38400-57600-115200
Stop bits
1 - 2
Parity
none - even - odd
User interface
Display
LED 5 digits
Buttons
4 buttons
LED
5 LEDs
Environmental features
Operating temperature
-25ºC... +55ºC
Storage temperature
-30ºC... +70ºC
Relative humidity (with no condensation)
25 ... 95%
Maximum altitude
2,000 m
Protection degree
Back: IP10/ Front panel: IP65
Mechanical features
Dimensions
)
96×48×93 mm
Weight
< 0.2 Kg
Enclosure
Self-extinguishing V0 plastic
Standards
Electromagnetic compatibility (CEM)� Part 6-2: Generic standards� Immu-
nity for industrial environments�
UNE EN 61000-6-2 :2006
Electromagnetic compatibility (CEM)� Part 6-4: Generic standards� Emis-
sions standard for industrial environments�
UNE EN 61000-6-4:2007
Safety requirements for electrical units for measurement, control and
laboratory use� Part 1: General requirements
UNE EN 61010-1:2011
55
Instruction Manual
DHB-402 DHB-424