AD-KR 11 GX, AD-KR 12 GX, AD-KR 22 GX


The coupling relays of series AD-KR 11 GX, AD-KR 12 GX (1-channel) and AD-KR 22 GX (2-channel) serve the galvanic separation and amplification of contact messages by means of a 24V auxiliary voltage. At the front, the operating condition of the relay is indicated via a red illuminated diode. A free-wheeling diode and a reverse polarity protection are integral. Due to the narrow type of construction, with an overall housing width of only 6.2 mm, a high packing density is achieved.

AD-KR 11 GX, AD-KR 12 GX, AD-KR 22 GX


Galvanic separation and amplification of contact messages.

Business data

Order number
AD-KR 11 GX 1-channel, 1 changeover contact
AD-KR 12 GX 1-channel, 2 closing contact
AD-KR 22 GX 2-channel, 2 closing contact
Customs tariff number / country of origin 8538 90 91 / Deutschland


Technical specifications

Nominal voltage 24 V DC
Voltage range 20 ... 30 V DC
Response time 6 ms
Fallback time 6 ms
Relay output
Maximum switching load AC 250 V, 2 A
Maximum switching load DC 50 V, 2 A
Switching capacity AC < 100 VA
Switching capacity DC < 100 W
Switching frequency < 1 Hz
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
Contact construction
AD-KR 11 GX 1 potential-free changeover
AD-KR 12 GX 2 potential free contacts
AD-KR 22 GX 2 potential free contacts
Dimensions (WxHxD) 6,2 x 92 x 101 mm³
Type of protection IP 20
Connection method Screw clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,5 Nm
Weight ~ 100 g
Manner of fastening DIN rail mounting 35mm, EN 50022
Environmental conditions
Ambient temperature -10 ... 50 °C
Storage and transport -10 ... +70 °C (no condensation)
Product family standard EN 61326-1
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
Input to relay 1,5 kV, 50 Hz (1 min)
Relay to relay 1,5 kV, 50 Hz (1 min)
Protection circuits
Input Electrical surge protection

Block and wiring diagram

AD-KR 11 GX, AD-KR 12 GX, AD-KR 22 GX


AD-KR 11 GX, AD-KR 12 GX, AD-KR 22 GX

CAD / CAE Daten

CAD model is not yet available for this product.

The CAD product overview can be found at:

Display and operating elements

Designation LED Meaning
R1 red Contact 1 state
R2 red Contact 2 state
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