ST42 is a compact, reliable, industrial-grade motor driver module developed for 12–24V DC motor systems. Thanks to its simple yet stable internal architecture, it delivers an economical and steady solution for automation applications that require forward/reverse direction control, start–stop and triggering.
Compatible with RF receivers, manual buttons and in-panel control signals, the ST42 operates for many years with low maintenance in direction-control–oriented applications that don't require complex speed profiles. Its panel-friendly dimensions make it easy to integrate into existing enclosures.
› The entry point of the series, with professional quality. For direction-control projects that don't need speed adjustment, start with the reliable and economical ST42 before stepping up to KS250 or PT500.
ST42 at a Glance
⚡ Voltage
12V / 24V DC
◆ Control
Forward – Reverse / On – Off
⚙ Mounting
In-panel – compact
⇄ Input
RF / Manual / PLC
○ Maintenance
Low, long lifetime
★ Position
Entry-level in the series
Key Features
✓ Simple and stable
No unnecessary complexity. The streamlined circuit architecture focused on direction control delivers consistent, predictable behavior.
✓ Multiple control inputs
Works with RF receivers, external buttons and in-panel signal triggers. Flexibility to choose the input source per project.
✓ Panel-friendly design
The compact body allows seamless mounting in existing panels; easy to fix to a DIN rail or a plate.
✓ 12V & 24V compatible
A single module operates on both 12V and 24V DC systems — reduces stock and parts variety.
✓ Fast integration
An open terminal layout and predictable I/O map keep design and test time short.
✓ Economical solution
Skip unnecessary module costs in direction-control projects; industrial quality on a low budget.
How Does It Work?
1
Connect the supply
Feed the 12V or 24V DC supply to the module through an appropriate fuse.
2
Choose the control
Connect one of an RF receiver, manual button or PLC signal as the control input.
3
Connect the motor
Wire the DC motor leads to the output terminals and verify the direction sequence.
4
Test & hand over
Test the forward–reverse motion, fix the unit to the panel and put the system into service.
Series Comparison
| Model | Position |
|---|---|
| › ST42 | Basic DC motor direction control — simple, stable, economical |
| › KS250 | Mid-range — 15A continuous / 45A peak, speed adjustment, built-in AntiSwitch |
| › PT500 | Heavy duty — 30A continuous / 40A peak, IP67, programmable CPU |
Technical Specifications
| Model | ST42 |
| Operating voltage | 12V / 24V DC |
| Motor control mode | Forward – Reverse / On – Off |
| Control inputs | RF receiver, manual button, panel signal |
| Current capacity | Mid-level — suitable for direction-control applications |
| Mounting | In-panel — compact body |
| Application class | Industrial DC motor automation |
| Maintenance | Low — long-lasting build |
Use Cases
| Sector | Benefit |
|---|---|
| ◆ Automatic doors and barriers | Simple and stable direction control for opening/closing motors. |
| ◆ Mini cranes and lifting | An economical driver for small-scale lifting mechanisms. |
| ◆ DC linear actuators | Reliable drive for installations focused on forward–reverse motion. |
| ◆ In-panel automation | A single-board solution as a direction / start-stop module in small panels. |
What's in the Box
✓ ST42 DC motor driver module
✓ Terminal connectors
✓ Wiring diagram
✓ Quick user guide
ST42 — the simple, economical and stable entry model in AXI Teknoloji's DC motor driver series.