◆  Optional with the function as follows:

→  Full-wave speed control

→  Half-wave speed control

→  On-Off version

→  On-Off with Passive linear potentiometer

→  Speed limited in forward or reverse

→  Electronics Speed limited internal in forward or reverse

◆  Optional with Following lock types:

→  No Lock

→  Lock-on

→  Lock-off

→  Lock-off with Lock-on

◆  Optional with the accessor as follows:

→  Knob for adjusting start voltage

→  Dial wheel of Trigger

→  Rubberized Trigger (overmolding)

→  Triac or SCR connected to PCB externally, optional with heat-sink

◆ The electronics in the switches had to be tested together with the corresponding appliances, so the switches are suitable for appliance of class II.

◆  Input side:

→  Pillar teminal Φ=3mm

◆  Output side:

→   Push-in terminals for soldered strands, strands with end sleeves or strands with end claws

AT01 Series Power Tool Switch: Multi-Speed Trigger with Dustproof Design for Cordless Tools

1. Product Overview

The AT01 Series is a versatile, high-performance multi-speed trigger switch designed for cordless and corded power tools, including drills, grinders, jigsaws, reciprocating saws, and hammer drills. Housed in an IP40 dustproof enclosure, it incorporates a bypass contact for full battery voltage at maximum speed while offering multiple speed-control options and lock modes to match diverse tool requirements.

2. Core Features

• Multi-Speed Control:

• Full-wave and half-wave AC control.

• On–Off version or versions with a passive linear potentiometer included.

• Optional speed limiting via electronics in one or both directions.

• Locking Options:

• No lock

• Lock‑on (continuous operation)

• Lock‑off (prevent accidental starts)

• Lock‑off with lock‑on

• Accessories & Customization:

• Adjustable start‑voltage knob

• Dial wheel under trigger for speed setting

• Rubber‑overmolded trigger top

• External Triac/SCR + heat‑sink combination for high-current control

• Safety and Compliance:

• Class II appliance compatibility

• Switch electronics can be pre‑tested with host tools for CE/UL certification

• Input terminal: 3 mm pillar style

• Output: push‑in connectors for stranded wire, ferrules, or lugs

3. Technical Specifications (Typical)

4. Ideal Applications

1. Cordless & Impact Drills

• Precise speed modulation for drilling, mixing adhesives, or fastener installation.

• Lock-on option for reducing fatigue in repetitive drilling tasks.

2. Jigsaws & Reciprocating Saws

• Variable control for cutting soft to hard materials.

• Bypass contact enables full cut-through speed on demand.

3. Electric Hammers & Rotary Hammers

• Full-wave control ensures smooth hammer strikes.

• Lock-off prevents accidental activation during handling.

4. Angled Grinders, Polishers & Sanders

• Dial wheel or potentiometer allows for optimal RPM based on material.

• Lock-on for sustained grinding or sanding jobs.