Key facts
- Brand
- Rockwell Automation
- Model
- SMC-50
- Industry
- Industrial
- Documents
- 3
- Languages
- ZH · EN
- Last added
- 2026-10-18
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Rockwell Automation SMC-50 Soft Starter User Manual
The Rockwell Automation SMC-50 is a microprocessor-based reduced-voltage soft starter designed for standard three-phase squirrel-cage induction or star-delta (6-wire) motors. It utilizes six back-to-back thyristors (SCRs) to provide controlled acceleration, running, and deceleration regulation. The device may include an optional integrated solid-state bypass contactor. This manual is written in Chinese.
Read onlineRockwell Automation SMC-50 specifications
| IP Rating (minimum) | IP23 |
|---|---|
| Environmental temperature range (solid‑state) | -20 °C to +40 °C |
| Environmental temperature range (internal bypass) | -20 °C to +50 °C |
| Maximum DPI port output current | 560 mA |
| Standard digital I/O per controller | 2 × 24 V DC inputs, 2 × relay outputs |
All Rockwell Automation SMC-50 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What type of motors is the SMC-50 soft starter designed for?
It is designed for standard three-phase squirrel-cage induction or star-delta (6-wire) motors.
How does the SMC-50 control motor speed?
It uses six back-to-back thyristors (SCRs), with two per phase, to regulate voltage.
What is the minimum IP rating required for the SMC-50 controller cabinet?
The minimum required IP rating for the cabinet is IP23 (NEMA type 1).
What temperature range can the solid‑state SMC-50 operate in?
The solid‑state SMC-50 can operate from –20 °C to +40 °C.
Does the SMC-50 include an integrated bypass contactor?
No, the SMC-50 Starter is fully solid-state with no integrated bypass, though an external bypass contactor can be added as an option.
From: Rockwell Automation SMC-50 Solid-State Smart Motor Controller Selection Guide
What is the rated voltage range for the SMC-50 Smart Motor Controller?
The rated voltage is 200…690V AC.
From: Rockwell Automation SMC-50 Solid-State Smart Motor Controller Selection Guide