Lighting Dimmers SLD Mini


Enquire Now

The interVOLT range of SLD electronic DC lighting dimmers provide an excellent solution for the dimming of conventional (filament) lamps as well as compatible LED devices. The dimming of onboard lighting in boats, RVs, caravans and coaches at an affordable price has always been an issue. The SLD Series overcomes this with a feature packed design, not only presenting great value, but ensuring reliability, longevity and safety.

The SLD range of dimmers include single and two channel versions all housed in interVOLT’s unique Mini Series enclosures which are not only stylish but compact, efficient and installer friendly. The single channel range can be paralleled to increase load capability and controlled from a single momentary switch. A selector switch allows the first dimmer to act as the master device with any subsequent dimmer connected as a slave.

Unique to interVOLT, is the self diagnosing electronics. This design provides valuable feedback to installers and operators alike. An LED displays the system status and will indicate standby power, lamp load connected (lights on), over temperature and output short circuit.

interVOLT dimmers feature a host of devices designed to protect the electronics from various connection and application problems. The dimmers are protected against, short circuit, over temperature and an internal fuse protects the electronics in the event of component failure.

All interVOLT dimmers have an integrated device which stores data for various functions including the memory feature. The memory function records the current ‘brightness’ setting when the lights are switched off, so that same ‘brightness’ is resumed when turned on again.

Soft Starting
A special feature of interVOLT dimmers is the soft start function. High inrush current diminishes the life of common filament lamps. This feature controls the start up power by limiting the in-rush current, considerably extending the bulb life.

An innovative feature of our dimmers is the temperature failsafe mode. Most electronic dimmers either fail or shutdown on temperature overload. interVOLT dimmers are programmed to dim the lighting circuit to 50% of full load if the electronics should overheat.

Parallel Connection Another innovation is the master/slave function. Each interVOLT dimmer is in itself a dual purpose device. Rather than purchasing individual master and slave units the interVOLT dimmers can be made into either by simply using the master/slave slide switch.

Model SLD2040DC SLD2550DC
Continuous Load Rating @ 30°C
200 Watts @ 13.0VDC or
400 Watts @ 26.0VDC
250 Watts @ 13.0VDC or
500 Watts @ 26.0VDC
Length Overall 120mm (4.725”) 170mm (6.690”)
Width Overall 80mm  (3.150”) 80mm  (3.150”)
Height Overall 40mm (1.575”) 40mm (1.575”)
Weight 250 grams (8.80 oz) 350 grams (12.35 oz)
Input Voltage Range 9 – 33VDC
Dimming Voltage Range 10– 98% of input voltage
Standby Current Draw <10mA
Single pole momentary push switch (normally open). Multiple switches can be used.
Operating Temperature -25°C to + 45°C
Operating Humidity Ideally less than 90%
Enclosure Material Marine grade aluminium dye anodised
End Cap Material Injection moulded electrical grade ABS/PC plastic
Terminal Cover Material Extruded temperature resistant ABS
Diagnostic Indicator Tri-colour LED – monitoring standby mode, load on, short circuit and temperature.
Transient Voltage Protection Filtering – Purpose designed circuit
Short Circuit Protection Shutdown – Current sensing circuit (automatic reset)
Over Temperature Protection Foldback to 50% of rated load – Temperature sensing circuit (automatic reset)
Output Circuit Configuration Common negative wiring (switching positive) for ease of installation.
Termination Power – 6-32 UNC H/D screw terminal. Auxiliary – Euro terminal block.
Master/Slave Selection Use selectable slide switch. Located next to auxiliary terminal.
Conformity EMC – Australian AS2064 and European EN50081-1 / EN50082-1
Certification EMC – Australian C Tick mark and European CE mark
Download Brochure
SLD – Brochure
Download Manual
SLD – Manual
Download Technical Data Sheet
SLD 200/400 Watt – Technical Data Sheet
Download Technical Data Sheet
SLD 250/500 Watt – Technical Data Sheet