Heater Knob, 3 Position Switch, Connector & Pins

Heater Fan Switch with Rotary Knob

A high quality rotary control knob to fit a range of multi position switches. These control knobs are made from injection moulded ABS plastic with a soft rubber textured outer, situated in the middle of the knob is a chrome covered logo. These are perfect for customers whom desire a period or classic looking rotary control switch.

A terminal connector is included only with the 3 and 4 position switches, these connectors help maintain a fully insulated & secure connection for heavy duty/high vibration environments.

Suitable for both 12v up to 20a & 24v up to 10a.
1.5 - 2.5mm² Female Terminals supplied with 3 and 4 Pos Switches.
1.5mm² cable is recommended for axial fans.
2.5mm² cable is recommended for centrifugal fans.
Connection 'C' is live when in any on position, this can be used for a warning light or to operate the AC so that it can only operate when the fan is switched on
D-shaft diameter = 0.25"
D-shaft flat = 0.156".
Knob diameter = 1" (25.4mm).
Knob depth = 0.9" (22.9mm).

Switch Types

Switch Type	2 Position	3 Position	4 Position
Thread Size	7/16-28	7/16-28	7/16-28
Thread Length	0.285"	0.285"	0.360"
Terminal Block	Not Available	Included	Included
Position 1	None	None	L + H
Position 2	B + C	B + H + C	B + L + C
Position 3	-	B + L + C	B + M + C
Position 4	-	-	B + H + C

3 Position Switch Dimensions

ATTENTION

Please note that no connector block is available for the 2 Position Switch, the cables will have to be fitted directly to the spade connections on the back of the switch.
These switches are only compatible with fans & blowers that have onboard resistor packs.

More Information

More Information
Manufacturer	T7Design

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