20 → 105W Light Transformer, 230V ac, 12 V

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): IT
Product Details

Dimmable Electronic Transformers

IP20 independent electronic transformers for halogen lamps

Class II protection against electric shock
Protected against overheating, voltage spikes and overloads
Secure the transformer using inbuilt screw slots

Low Voltage Lighting Transformers

Dimming Methods (where applicable):
Leading Edge:
The control device is either a thyristor or triac which blocks power until they are switched on by the control signal. At that point the current flows almost instantaneously and continues to flow until the end of the half cycle of the mains waveform. When the signal reaches zero, the device turns off and no more current is passed until it is triggered again. Turning the power on and off in this manner averages out creating a constant intensity level and by altering the precise trigger point over a period of time the lamp can be dimmed.

Trailing Edge:
Since this method of dimming uses transistor technology it is not limited to just switching, therefore current can be controlled gradually. Transistors can be programmed to pass current at the start of each half cycle, and gradually switch off later. This will control the full amount of power reaching the lamp without the side effects of a step increase in current.

Specifications
Attribute Value
Primary Voltage Rating 230V ac
Secondary Voltage Rating 12 V
Power Rating 20 → 105W
Dimensions 107 x 35 x 21mm
Length 107mm
Width 35mm
Depth 21mm
Minimum Load Requirement 20W
Minimum Temperature -20°C
Maximum Temperature +55°C
Weight 80g
Type Electronic
Dimming Dimming
Dimming Method Trailing Edge
Maximum Operating Frequency 60Hz
Standards Met EN 55015, EN 60598-1, EN 61000-3-2, EN 61347-1, EN 61347-2-2, EN 61547, EN61047, VDE 0710-T14
Protection Features Over Voltage Protection, Overheating Protection, Overload Protection, Short Circuit Protection
Termination Type Screw
Mounting Type Threaded Slots
Minimum Operating Frequency 50Hz
416 In stock for FREE next working day delivery
Price Each
£ 8.40
(exc. VAT)
£ 10.08
(inc. VAT)
Units
Per unit
1 +
£8.40
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