Y301-440/444 4DI + 4DO I/O Module
Y301-440 and Y301-444 provide four digital inputs and four relay outputs for Modbus RTU cabinet expansion.
- Channels
- 4DI + 4DO; Y301-444 adds 4AI
- Interfaces
- RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals
- Protocols
- Modbus RTU slave
- Power supply
- 5–36 VDC
Price for the selected configuration.
Shipping & Tax: Shipping is quoted separately and paid before dispatch. Import duties, taxes, customs fees and destination charges are paid by the customer.
Overview
Y301-440 and Y301-444 provide four digital inputs and four relay outputs for Modbus RTU cabinet expansion. Y301-444 adds four analog inputs, making it a practical choice when a control panel needs switch status, relay control, and process signal acquisition in one module.
Typical applications
- Multi-zone lighting, fan, valve, and pump control.
- Cabinets that need balanced 4DI + 4DO remote I/O.
- Process control panels that also need 0-10 V, 0-5 V, or 4-20 mA input.
How it works & selection
Model Options
| Y301-440 | 4DI + 4DO, compact digital I/O node. |
| Y301-444 | 4DI + 4DO + 4AI, for digital control with analog sensing. |
Selection notes
If your project only needs digital points, choose Y301-440. If analog sensors are part of the same cabinet, Y301-444 avoids an extra module.
Technical specifications
| Channels | 4DI + 4DO; Y301-444 adds 4AI |
|---|---|
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals |
| Protocols | Modbus RTU slave |
| Power supply | 5–36 VDC |
Signals and communication
| Product type / topology | Modbus RTU digital I/O module |
|---|---|
| Channels | 4DI + 4DO; Y301-444 adds 4AI |
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals |
| Protocols | Modbus RTU slave |
| Functions | Pulse counter, AI threshold and logic modes, and up to 8 local automation rules. |
Electrical
| Input signals | 4DI dry/wet contact; Y301-444: 0–10 V, 0–5 V, or 4–20 mA AI |
|---|---|
| Power supply | 5–36 VDC |
| Power consumption | 200 mA @ 12 V typical; 280 mA max |
| Relay outputs | 4 × SPDT relay; 277 VAC 10 A / 28 VDC 10 A |
| Measurement | Y301-444 AI: 16-bit resolution; ±1% FS accuracy; 10 Hz sampling |
Mechanical and environment
| Dimensions | Y301-440: 115 × 90 × 40 mm; Y301-444: 145 × 90 × 40 mm |
|---|---|
| Mounting | 35 mm DIN clip or screw slots |
| Environment | −40 to +85 °C; 5–95% RH, non-condensing; altitude ≤2000 m |
| Protection | IP20; UL94 V-0 flame-retardant housing |
Package & resources
Package contents
Module, digital quick reference guide, and warranty card. Optional accessories include a DIN clip, USB-to-RS485 converter, 12/24 VDC power supply, and shielded RS485 wiring kit.
