E-Stop Trigger

E-Stop Trigger

Hardwired automation for CNCs and contactor-driven tools.

The E-Stop Trigger integrates directly with the control circuit of any tool that has its own contactor — CNC routers, lasers, or production equipment — tying into the E-Stop and tool-run signal so GRIT can log runtime, open blast gates, and confirm tool activity without touching the main power wiring.

Key Features

• E-Stop integration: Removable terminal lands directly on the tool's emergency stop circuit
• Tool-run sensing: 3V-24V removable signal terminal reads the tool's run state
• Current transformer: Confirms actual tool load independent of the control signal
• Automated dust collection: Opens blast gates and starts collectors on tool-on
• Status LED: Red/green indicator shows idle or running

Specifications

• SKU GH-TR4000
• Power AC mains
• Signal Input 3V-24V DC
• E-Stop Terminal Removable
• Sensing Current transformer
• Connectivity GRIT Mesh Network
• Status RGB LED

In the Box

• 1x GRIT E-Stop Trigger (GH-TR4000)
• Removable E-Stop contact terminal
• Removable tool-run signal terminal (3V-24V)
• Current transformer
• AC mains power leads

Compatibility

For any tool with its own contactor and accessible E-Stop circuit — CNC routers, lasers, plasma tables, and production equipment.

Installation

Land the E-Stop terminal on the tool's emergency stop circuit, connect the tool-run signal, clamp the current transformer around the load conductor, and power the Trigger from AC mains. We recommend a licensed electrician for all hardwired installations.

*GRIT Hub is required for device functionality.

Important Notes

Professional electrical installation recommended.