Bosch APC-AMC2-4R4CF Installation Manual page 29

Access Modular Controller 2
Figure 4.17: Location of the relay output connectors
Each relay output can operate in 'wet' mode, using the AMC2-4R4's internal 12/24 Vdc power
supply for external devices or 'dry' mode with potential free contacts for externally powered
systems.
Figure 4.18: Wet mode and dry mode of the AMC2 relay outputs
Notice!
Risk of damage to equipment
To prevent damage to the relays note the following specifications.
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If using locally manufactured products, please ensure that the specifications of the product
are identical with the those listed above.
Bosch Security Systems B.V.
the maximum switching current is 1.25 A
the maximum switching voltage is 30 Vdc
only ohm resistive load can be connected to the relay
inductive loads have to be short circuited using recovery diodes, see image below. These
diodes (1N4004) are supplied with every AMC2-4R4 package.
If you need higher voltage for special applications you have to connect external relays to
the outputs. Depending on the power supply mode, it is recommended to use the
following Wiegand relay types:
– Flare move 12DC1W10A
– Flare move 24DC1W16A
Installation manual
Installing | en 29
2020-01 | V02 |