== 3A Relay Output Module (WBIO-DO-R3A-8) ==

WBIO-DO-R3A-8

Purpose

Control of contactors, warning lights, etc.

Technical specifications

Contains 8 relays. Two of them are rocker (NO/COM/NC) switching corresponding 8 outputs. The outputs are output to screw clamps designed for a maximum current of 20 A.

Permissible current: up to 3A per channel.

Our detailed article in russian on habr.com about the choice of relay parameters for the switched load: https://habr.com/ru/company/wirenboard/blog/422197/

Parameter	Value
Number of outputs	8
Output type	mechanical relay
contact Configuration	K2-K7	SPST, normally open states: off C is closed and NO
	K1, K8	SPDT (contacts K, NO, NC) conditions: C and NS closed C and NO closed
Maximum switching voltage, alternating current	250 V
Maximum switching voltage, direct current	30 V
Maximum switching current, per channel (*)	3 A
The channel resistance in the open state	< 100 megohms
Voltage isolation between the controller and the output	1500 V (RMS.)
Lifetime: number of switches for 10 A 230 V AC load, cos φ = 1	100 000
Module type	"O" (non-inverted address scheme)
Maximum power consumption	1W
Width, DIN units	3
Size	53,3x90,2x57,5 mm

*) Maximum switching current is specified for 230 VAC resistive load.

Dimensions

Подключение к контроллеру

Смотрите раздел Активирование в веб-интерфейсе контроллера. В поле "Module type" следует выбрать устройство WBIO-DO-RxA-8: 8 Channel Relay I/O module. В веб-интерфейсе реле будут представлены контролами EXTx_R3A1 — EXTx_R3A8 устройства Discrete I/O. Соответствующие MQTT-топики: /devices/wb-gpio/controls/EXTx_R3Ay.

Контролы модуля в веб-интерфейсе

Подключение нагрузки

Реле подключаются в разрыв фазы.

Схема подключения