· Trigger from 0V, 12V/24V, TTL (5V), PNP and NPN signals
· DIN Rail Mount optional. DIN128
· Blue LED Indicates Relay ON status
· Reverse polarity protected
· Switch up to 5A at 240V

Each relay can be operated by TTL levels, NPN and PNP open collector or 0 to 12V(0 to 24V if using 24VDC relays).
Each relay has two inputs, marked LO and HI.
As the names suggest a low on the LO input will operate the relay.
Similarly a high on the HI input will also operate the relay.

Specifications:
Operating Voltage 12VDC
Input low voltage (LO) 0 - 0.8V
Input high voltage (HI) 2.4 - 12V

Each card has 8 relays which can be split up in pairs to make cards of 2, 4 or 6 relays, each being DIN Mountable.
Current consumption is approx 4mA per relay pair plus 30mA per relay when ON.
ie: An 8 relay card with all the relays active will draw a maximum current of 4 x 4mA + 8 x 30mA = Approx 250mA

We have operated these relays from an old style TTL 7404 Hex Inverter which have less drive capacity than the newer HC and HCT types.
The inverter could operate the relay with both a low and a high output signal.
But what is more important was that the High voltage dropped from 4V to 3.5V showing the output still had capacity to drive other TTL devices

The relays used are Goodsky RW-SS-122D
Each single pole changeover relay contacts SPDT will switch 10A/24VDC , 10A/110VAC, 5A/240VAC.
Coil Resistance for the relays is 400ohm(12V), 1600ohm(24V)

A LED shows the state of each relay.
The Relay Cards are available in 12VDC or 24VDC
Four 3.5mm holes in each corner allow easy mounting on a panel

Dimensions of card

8 relay card - 174(L) x 71(W) x 20(H)mm

DIN RAIL MOUNT FOR RLC128 DIN128

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