The Marantec KDT 3 Push Button Station is:

A manual control device used to operate industrial doors or gates, providing direct commands to open, stop, or close the door system.

It is one of the primary human interface devices in a door system.

Core Function

The KDT3 provides 3 control inputs:

• OPEN (Up)
• STOP
• CLOSE (Down)

These signals are sent directly to the door control unit (e.g. CS300 / CS320)

How it works

1. User presses a button:
   • OPEN → door moves up
   • STOP → door halts immediately
   • CLOSE → door moves down
2. The push button sends a momentary electrical signal to the controller
3. The control panel processes the command and drives the motor

 It acts as a low-voltage control interface, not a power device

Key Features

Three-button control system

• Dedicated buttons for:
  • Open / Stop / Close
• Clear, simple operation for industrial environments

 Momentary contact operation

• Buttons are spring-return (momentary)
• Signal only active while pressed

 Prevents unintended continuous operation

 Universal compatibility

• Works with:
  • Marantec control panels
  • Third-party controllers

 Uses standard dry contact inputs

Surface-mounted design

• Installed directly on:
  • Wall
  • Control pillar
• Easy retrofit or new installation

Industrial durability

• Designed for:
  • Warehouses
  • Factories
  • Roller shutter systems

Technical Specifications

Electrical

• Connection type: Conventional wiring
• Number of contacts: 3
• Contact type:
  • 3 × Normally Open (NO)
• Signal type: Potential-free (dry contact)

Functional

• Functions:
  • Open / Stop / Close
• Operation mode: Momentary push buttons

Mechanical

• Housing: Plastic enclosure
• Mounting: Surface mount
• Dimensions:
  • Width: 72 mm
  • Height: 139.5 mm

Environmental

• Protection rating: IP65

 Meaning:

• Dust-tight
• Protected against water jets
• Suitable for industrial environments

Wiring & Integration

Typical wiring (simplified)

• Uses low-voltage control wiring
• Interfaces with:
  • CS300
  • CS310
  • CS320
  • Other compatible controllers

Role in a Full Door System

The KDT3 works alongside:

• Photocells → prevent closing on obstruction
• Safety edge → stop on contact
• Safety catch → prevent سقوط (fall)
• DoorEdge controller → processes edge signals

 The KDT3 is the manual command input layer

Simple explanation

The KDT3 is:

A 3-button wall station that lets a user manually open, stop, or close an industrial door.

Variants (important)

There are slightly different versions:

• Standard KDT3
  • Open / Stop / Close
  • All momentary
• KDT3-N
  • Includes emergency stop mushroom button
  • Mix of momentary + latching contacts

Key takeaway

• It does not provide safety by itself
• It is a control interface
• Safety still relies on:
  • Photocells
  • Safety edges
  • Controllers

(The Company reserves the right to amend product specifications and information without notice.)