AD-KAB 40 GT, AD-KAB 80 GT

Description

With the RS485 relay modules AD-KAB 40 GT and AD-KAB 80 GT, 4 or 8 potential-free NO contacts can be controlled from a distance via RS485 bus. The used Modbus-RTU protocol on these devices on the RS485 bus is an open standard and therefore extremely flexible. The up to eight relays can be individually controlled via a separate Modbus register. The devices are equipped with two rotary coding switches, which can be used to set the bus address on the device. If the DIP switch is active (in manual operation) bus commands for the respective relay are ignored because the manual operation has priority. Due to the compact and efficient switching power supply, the devices can be operated in a wide supply voltage range.

AD-KAB 40 GT, AD-KAB 80 GT

Application

Remote control of loads such as valves or motors in building automation as well as in automation technology.
Attention: A mixed wiring of the relays of extra low voltage and grid voltage is only permitted to a limited extent. For example, care must be taken that relays with 24 V and 230 V signals are not adjacent.

Specific characteristics

RS485-Bus Modbus-RTU protocol rotary coding switch for setting the bus address DIP switch for manual relay operation 4 or 8 potential free relays wide range power supply

Business data

Order number
AD-KAB 40 GT RS485 Relaismodul mit 4 Relais
AD-KAB 80 GT RS485 Relaismodul mit 8 Relais
Accessory
USB/RS485 converter AD-VarioPass3

Information

Downloads
Data sheet pdf en-kab40_80gt.pdf (266 kB)
Safety instructions pdf ad-safety-instructions.pdf (43 kB)

Technical specifications

RS485-Bus
Software protocol Modbus-RTU
Data format (default setting) 19200, e, 8, 1
Max. bus users 99
Bus termination 120 ohms both sides at the end
Max. length of bus 500 m (no spur lines)
Cable Twisted and shielded
Relay
Maximum switching load AC 250 V, 2 A
Maximum switching load DC 50 V, 2 A
Contact construction Closing contact
Switching operations mechanical 10000000
At 230V/2A AC, cos(phi)=1 600000
At 230V/2A AC, cos(phi)=0,4 200000
At 24V/1 A DC 200000
Supply
Voltage range AC 50 ... 253 V AC, 50/60 Hz
Nominal voltage AC 230 V AC
Voltage range DC 22 ... 253 V DC
Nominal voltage DC 24 V DC
Power consumption AC / DC 3,5 VA / 2,5 W
Transmission behaviour
Response time Max. 5 ms
Housing
Dimensions (WxHxD) 71x90x58 mm
Type of protection IP 20
Connection method Detachable terminal clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,5 Nm
Weight ~ 200 g
Manner of fastening 35 mm DIN rail 35mm
Environmental conditions
Ambient temperature -10 ... 60 °C
Storage and transport -10 ... 70 °C (no condensation)
EMC
Product family standard EN 61326-1 1)
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Galvanic isolation, test voltages
Power supply / RS485-Bus 3 kV, 50 Hz (1 min.)
Power supply / relay output 3 kV, 50 Hz (1 min.)
Relay output / RS485-Bus 3 kV, 50 Hz (1 min.)
Protection circuits
RS485-Bus Electrical surge protection
Power supply Electrical surge and reverse current protection
1) During checking, slight signal deviations are possible.

Block and wiring diagram

AD-KAB 40 GT, AD-KAB 80 GT

Dimensions

AD-KAB 40 GT, AD-KAB 80 GT

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