# Epson T3-B401SS

Hardware · `T3-B401SS` · verification: source checked

The Epson T3-B401SS is a tabletop SCARA robot with a 400 mm arm length from Joint #1 plus Joint #2. It has a rated payload of 1 kg and a maximum payload of 3 kg, and its controller is built into the robot base. It runs on AC 100-240 V single-phase power and is supplied with Epson RC+ and RC+ Express software and an E-Stop unit.

## Specification

| Property | Value |
|---|---|
| Category | scara robot |
| Payload | 1 kg |
| Reach | 400 mm |
| Repeatability | 0.02 mm |
| Weight | 16 kg |

### Joints

| Name | Range min (°) | Range max (°) |
|---|---|---|
| Joint #1 | -132 | 132 |
| Joint #2 | -141 | 141 |
| Joint #3 |  |  |
| Joint #4 | -360 | 360 |

## Connected

- Manufacturer: [Epson](https://machineschema.com/manufacturer/epson.md)

## Safety

- CE Marking.
- E-Stop unit with cable is included.
- Brakes are provided on the Z-axis only.

## Study notes

- Maximum payload is 3 kg.
- Standard cycle time is 0.52 sec, based on round-trip arch motion (300 mm horizontal, 25 mm vertical) with 1 kg payload.
- Repeatability for Joint #4 is ±0.02 deg.
- Joint #3 has a 150 mm linear motion range.
- Joint #3 maximum down force is 83 N.
- Allowable moment of inertia for Joint #4: rated 0.003 kg·m2, maximum 0.010 kg·m2.
- Power supply is AC 100-240 V single phase; power consumption is 0.66 kVa; power cable length is 5 m.
- Controller is built into the robot base.
- User electric lines: hand I/O IN6/OUT4 D-Sub 15 pin; user I/O IN18/OUT12.
- User pneumatic lines: ø6 mm x2, ø4 mm x1.
- Optional fieldbus I/O boards include EtherNet/IP, EtherCAT, PROFINET, DeviceNet, Profibus, and CC-Link.
- Integrated vision guidance, IntelliFlex parts feeding, teach pendants, and Epson RC+ 7.0 API are available options.

## Sources

1. [https://files.support.epson.com/far/docs/t3-b_all-in-one_scara_robot_specification_sheet_cpd-61647_final.pdf](https://files.support.epson.com/far/docs/t3-b_all-in-one_scara_robot_specification_sheet_cpd-61647_final.pdf) (accessed 2026-10-25)

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