The DIM13 is a low voltage 12V or 24V PWM lamp and LED dimmer module controlled by a two position centre-off rocker switch or two pushbuttons for 'increase brightness' and 'decrease brightness'.

Connections to the DIM13 are shown in the Connection Diagram section. The 'Brighter' and 'Dimmer' inputs should be switched to positive through a suitable rocker switch or pushbuttons (not supplied) - a centre-off momentary rocker switch is shown. When the rocker or pushbutton is pressed in the 'Brighter' direction, the lamps will get brighter, conversely for the 'Dimmer' direction. A brief press of the switch will increase or decrease the brightness a small amount. If the switch is pressed continuously, the brightness will increase or decrease for as long as the switch is held, until either the fully-on or fully-off state is reached. The 'switch' can be any kind of switch, including relay contacts, but it must be switched to the positive supply voltage.

The DIM13 also has a built-in function where the current brightness setting is saved into non-volatile memory every time it is changed. The brightness level remains in memory even when power is removed, and is restored when power is re-applied. This ensures the preset brightness level is not lost when power is removed.

DIM13 Specifications

Parameter	DIM13	Comment
Datasheet
Nominal Supply Voltage Range	9 - 32 V DC
Peak Supply Voltage Range	5.5 - 40 V DC	Operation not guaranteed
Output Type	High-Side Positive
PWM Switching Frequency	240Hz, 0% - 100% Duty Cycle	+/- 3%
Maximum Output Current	10A
Non-Sustained Peak Output Current	30A	< 3sec
Maximum Load	120W (12V), 240W (24V)
Control Input Type	Up/Down Switch
Quiescent Current, max	14mA	No-load operating current at maximum operating voltage
Operating Temperature Range	-5 - 70°C (23 - 160°F)
Dimensions	52 × 52 × 31mm	L × W × H excl. fixings
Mechanical Fixing	2× 5.2mm dia, 20mm pitch
Electrical Connection	4mm2 rising clamp terminal block
Enclosure Style	Epoxy Potted ABS

DIM13 Typical Connection Diagram

DIM13 Dimensional Drawing

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