VMD111/1 Installation Instructions and Technical Specification. Page 3 of 3
VoltMaster: All data refers to MO and SO units unless otherwise stated
Notes:
1 Provide ventilation if installing in cupboard.
2 At full brightness output adjusts to give 11.8V (23.6V) at lamps.
3 Loading capability includes allowance for lamp wattage tolerance.
4 SoftStart operates at switch-on, after mains interruptions and after protection trip delay.
5 For short circuit trip level is very low (no light will show)
6 Use either 8-off terminals or large green terminal.
7 Distribute loads evenly on each side off distribution outlet board if using 8-off terminals.
8 Large green terminal is for wiring to track, high-wire or distribution box.
Condition/feature Requirement (R)/Capability (C) Parameter Value/units Note Type/ comment
Electrical supply (mains input) R Regular sine wave Voltage 207-265V Mandatory Earth
Frequency 48-62Hz must be connected.
Ambient conditions R Non-condensing Temperature 0-45°C 1 VMD300/12, VMD400/24
0-40°C 1 VMD400/12
0-40°C VMDE300/12
Derate for higher temperatures
IP rating IP20
Output C Isolated SELV compatible Nominal 12V 2 VMD300/12 and VMD400/12
VMDE300/12
Voltage 24V 2 VMD400/24
Max. load 300W 3 VMD300/12
(nominal) 400W 3 VMD400/12, VM400/24
Min. load 35W Ensures correct operation
Voltage sensing R 2-wire cable must be Min. cable 2.5mm
2
If sensing cable not connected
connected to track/lamp fitting size to track output freezes at approx half
Min. cable 1mm
2
brightness
size to fused fitting
Sensing cable terminal x 2 Cable size 2.5mm
2
Use load knockout
acceptance
Dimming R Dimming signal terminal Cable size 2.5mm
2
Analogue sig:C1:0V & C4:0-10V
acceptance C1,C2,C3 potentiometer connect
SoftStart C increases output Ramp up 5sec 4 100% effective
slowly from zero time to max.
Overload protection C Trips and reduces Trip 110% ie. trips when overloaded by
output quickly to zero. threshold approx 10% of rated full load
Short circuit protection C Trips and reduces Response <50ms 100% effective
output quickly to zero. time
Recovery after C Soft starts after Total time to 15sec 5 If the fault persists, the output
protection trip approx. 10 second delay recovery continually ramps up to a level
which operates the trip again
Multi outlet units only either: 6
Output terminations. C 8 x fused terminal pairs for Cable size 4mm
2
Total lamp wattage up to individually wired lamp fittings acceptance
maximum load rating Max watts per 100W 7 VMD300/12, VMD400/12
terminal pair 150W 7 VMD400/24
or: 6
C Large Green Cable size 10mm
2
8 Total lamp wattage up to
Terminal pair for track acceptance maximum load rating.
Single outlet units only Ceramic terminal pair Cable size 16mm
2
Output terminations. acceptance
Total lamp wattage up to
maximum load rating
Multi outlet units only One per fused terminal pair As fitted 10A GLASS quick-acting 5 x 20mm
Output fuse rating
Mains supply termination R L, N, Cable size 2x 2.5mm
2
3-way terminal block
(Mandatory Earth) acceptance 2 x 20mm knockout provided
Mains safety fusing R Not customer-replaceable Rating 5A Fast Ceramic 5 x 20mm
Multiload Technology Limited 2 Rosemont Road Hampstead London NW3 6NE Telephone 020 7794 9152 www.multiload.co.uk
Multiload Technology reserve the right to alter any specification for their products or services without prior notice. The information contained within this publication is for guidance only and should not be considered as part of any contract
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