Two SPDT relay outputs rated 277 VAC 10 A or 28 VDC 10 A
Y301-020 Dual Relay Output Modbus Module
2DO I/O Module
Miniature Modbus-RTU relay node that delivers two SPDT outputs for pumps, valves, or lighting loads inside space-constrained control boxes.

Key Features
Supports output retention modes for none, soft reboot, or full retention
RS485 Modbus RTU by default with optional RS232 or TTL variants
5 to 36 VDC industrial supply in a compact DIN-rail or screw-mount enclosure
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 80 mA @ 12V (all DO off)
- Max Current
- 120 mA @ 12V (all DO on)
- Operating Temperature
- -40°C ~ +85°C
- Humidity
- 5% ~ 95% RH, non-condensing
Digital Outputs
- Channels
- 2
- Type
- SPDT relay
- Contact Rating
- 277 VAC 10 A / 28 VDC 10 A
- Minimum Load
- 10 VAC 10 mA
- Switching Time
- <10 ms operate / <5 ms release
- Electrical Life
- 100k cycles at rated load
- Output Retention
- None / soft reboot / full retention
Communication
- Interfaces
- RS485 (2-wire), optional RS232 or TTL
- Protocol
- Modbus RTU slave
- Baud Rate
- 600~230400 bps (default 9600)
- Slave Address
- 1~255 (software) + DIP offset 0~31
Mechanical
- Dimensions
- 77 x 54 x 32 mm
- Mounting
- 35 mm DIN clip or screw slots
- Protection
- IP20
Product Documents
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