WBIO-DO-R10A-8 Relay Module

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WBIO-DO-R10A-8 module

WBIO-DO-R10A-8 board

Application

Suitable for switching incandescent lighting and motors.

For information on choosing a relay module, see Recommendations for selecting a relay for a load.

Technical specifications

Parameter	Value
Number of outputs	8
Output type	Mechanical relay
Contact configuration	SPST, normally open States: off C and NO contacts closed
Maximum switching voltage (AC)	250 V
Maximum switching voltage (DC)	30 V
Maximum switching current per channel (*)	7 A
Maximum DC switching current per channel	10 A
Channel resistance (open)	< 100 mΩ
Напряжение изоляции между катушкой реле и контактами	4000 VAC (1 мин)
Напряжение изоляции между разомкнутыми контактами реле	1000 VAC (1 мин)
Service life: number of switching operations for 10 A, 230 V AC load, cos φ = 1	100,000
Module type	"O" (non-inverted address scheme)
Maximum power consumption	1.15 W (2.5 W peak)
Operating conditions
Ambient temperature	From −40 to +80 °C
Relative humidity	Up to 95%, non-condensing
Climatic rating according to GOST 15150-69	O2.1*
Warranty period	2 years
Service life	5 years
Compatibility
Controller compatibility	Wiren Board 5, 6, 7, 8
Module compatibility	Interface modules WB-MIO and WB-MIO-E
Terminal blocks and wire cross-section
Recommended wire cross-section with ferrules	0.5–2.5 mm²
Standard ferrule length	8 mm
Screw tightening torque	0.5 N·m
Dimensions
Width, DIN units	3
Overall dimensions (L × W × H)	53 × 90 × 58 mm
Weight (with packaging)	160 g

* Maximum switching current is specified for a resistive load at 230 V AC.

Operating principle

Contains 8 HF32F-G relays manufactured by Hongfa (Datasheet), with SPST contact configuration (two contacts per relay: NO/COM), each switching a corresponding output. The outputs are routed to screw terminals.

Current up to 7 A per channel. Depending on the hardware revision, each relay contact may be equipped with a varistor for overvoltage protection.

Installation

Module connection to the controller

I/O modules are connected to the Wiren Board controller or the WB-MIO interface converter on the right side via the side connector. Make sure all module pins are properly aligned with the mating connector.

Secure the modules on the DIN rail using end stops on both sides, but leave approximately 2 cm of free space for easy removal when needed.

You can connect up to 8 modules in total: up to 4 input modules (type “I”) and up to 4 output modules (type “O”). Exception: only one WBIO-AI-DV-12 module can be connected.

Addresses are assigned sequentially. You can connect up to 4 modules in any order. If connecting more than 4, group modules by type: connect all of one type first, then the other.

Load connection

Relays are connected in series with the phase conductor.

Wiring diagram

Controller connection setup

General information

After physically connecting the module, it must be added to the controller configuration:

In the web interface, go to Settings → Configuration files.
Open the Extension modules and ports section and select the WBIO module (External I/O module) where the side-mounted WBIO module is connected.
In the dropdown list Module type, select the type of the connected module.
Click the Save button.

To remove a module, select the Not installed type.

Make sure the external module is visible in the web interface:

Go to the Devices section.
Find the Relays & FETs device (or Discrete I/O on Wiren Board 6 and earlier) for digital modules, or ADCs for analog modules. The channels will appear as EXTN_YYYY, where N is the module number and YYYY is the channel name.

The MQTT topic will be of the form /devices/wb-gpio/controls/EXTN_YYYY.

Configuration of a new side-mounted module
Channels of the external module in the Wiren Board web interface

Module-specific features

Web interface appearance

Module controls in the web interface

In the Module type field, select the device WBIO-DO-RxA-8: 8 Channel Relay I/O module.

In the web interface, the relays will appear as controls EXTx_R3A1 to EXTx_R3A8 of the Discrete I/O device.

MQTT topic names: /devices/wb-gpio/controls/EXTx_R3Ay.

Unused output

One output on each side of the device is not used.

Device revisions

The batch number can be found on a sticker on the side of the case or on the PCB.

Revision	Batch	Release date	Differences from previous revision
3.2	v3.2A, v3.2B	05.2025 – ...	Replaced GPIO expander MCP23008-E/SO with STM32G030K6T6 MCU, added status LED
2.6	v2.6C	10.2024 – 05.2025	Added serial number labels
2.6	v2.6A, v2.6B	11.2023 – 10.2024	Removed varistors
2.5	v2.5L	09.2023	Terminal blocks replaced with versions without side walls
2.5	v2.5E, v2.5F, v2.5G, v2.5H, v2.5I, v2.5J, v2.5K	10.2021 – 02.2023	Equipped with more powerful HF32FV-16/5-HLTF(590) relays with inrush current up to 80 A (20 ms)
2.5	v2.5A, v2.5B, v2.5C, v2.5D	12.2020 – 10.2021	Varistor protection, no LED indicators, pluggable terminal blocks
2.4	v2.4A – v2.4M	09.2019 – 03.2021	TVS protection, no LED indicators, pluggable terminal blocks
2.2 – 2.3	225, 279, 311, 330, v2.3A	04.2018 – 09.2019	Varistor protection, no LED indicators, pluggable terminal blocks
2.2	168	Summer 2017	Varistor protection, no LED indicators, screw terminals, 3 A relays
2.0 – 2.2	??, 168/G, 190, 206	Until 02.2018	Varistor protection, no LED indicators, screw terminals
1.2	??	Until 2016	First version: TVS protection, LED indicators, 3 A relays, screw terminals