DOR-O-MATIC 4-Position Switch Wiring Conversion
This guide explains how to convert an older DOR-O-MATIC 8-wire switch configuration to a newer 3-wire cord assembly when replacing or upgrading a door control switch.
Overview
Older DOR-O-MATIC 4-position switches utilize an 8-wire configuration identified by numbered conductors. Newer replacement switches use a simplified 3-wire cord.
When replacing the older switch, the existing switch wires must be properly connected to the new 3-wire cord to maintain correct operation.
Old 8-Wire Switch Identification
Wire Number | Wire Color |
1 | Red |
2 | Orange |
3 | White |
4 | Green |
5 | Blue |
6 | Brown |
7 | Yellow |
8 | Black |
New 3-Wire Cord Identification
The replacement cord contains three wires:
- Black
- Red
- Green
Before wiring, cut the cord from the replacement switch as needed to expose the three conductors.
Wiring Conversion Chart
Connect the wires as follows:
Old Switch Wire(s) | Connect To New Cord Wire |
White (#3) | Black |
Blue (#5) | Black |
Black (#8) | Black |
Red (#1) | Green |
Orange (#2) | Green |
Green (#4) | Red |
Unused Wires
The following wires are not used in this conversion:
Wire Number | Color |
6 | Brown |
7 | Yellow |
Important
Brown and Yellow wires must be individually insulated and taped off to prevent accidental contact with the door frame or other conductors.
Wiring Summary
New Cord Black Wire
Connect to:
- White (#3)
- Blue (#5)
- Black (#8)
New Cord Green Wire
Connect to:
- Red (#1)
- Orange (#2)
New Cord Red Wire
Connect to:
- Green (#4)
Unused
- Brown (#6)
- Yellow (#7)
Tape and isolate these wires to prevent short circuits.
Installation Notes
- Verify all connections before energizing the operator.
- Use approved wire connectors.
- Insulate all unused conductors.
- Route wiring away from moving door components.
- Follow all applicable electrical and automatic door safety standards.
Applications
This conversion procedure is commonly used when:
- Replacing obsolete DOR-O-MATIC 4-position switches
- Upgrading older automatic door controls
- Retrofitting Benchmark, Astro-Swing, or other legacy DOR-O-MATIC operator systems
- Converting from an 8-wire switch harness to a modern 3-wire cord assembly
Proper wiring ensures continued operation of the door control switch while simplifying future maintenance and replacement.