LED DRIVERS
CL Analog Switchable
Up to 33W
350/700mA, 500/700mA & 700/1050mA
CoolLED drivers provide a high performance solution for
powering LEDs from a mains supply.
Linear dimming from conventional 0-10V dimmer.
LED series string is supplied with electronically regulated
constant current.
High efficiency design ensures cool operation and long
life.
Reduces mains current and lowers electricity cost.
Open and short-circuit protected, self-resetting over
temperature trip
Also benefits from Hot Plug protection
Versions available: Flying Lead ‘A’ type & Integral ‘B’ type.
A style is IP66 rated.
Product Description
• Mains input voltage 120 - 277V Ac rms
• Fully-isolated, SELV/Class 2
• High power factor (0.95)
• Self resetting thermal trip
• 86% efficiency
• Surge protection up to 4kV
• Linear dimming from 5% to 100%
• Double insulated (Class II)
0-10V
Harvard Technology Ltd.
EU - Tyler Close, Normanton, Wakefield, WF6 1RL, UK Tel: +44 (0)113 383 1000 Fax: +44 (0)113 383 1010
USA - Suite 330, 9171 Towne Centre Drive, San Diego, California, 92122 Tel: (858) 882 - 3844
www.HarvardTechnology.com
LED DRIVERS
Wiring Diagram - A style
Wiring Diagram - B style
Technical Specification
Mains input voltage
120 - 277V ac rms +/-5%
Mains frequency
47 - 63Hz
Mains surge protection
4kV common-mode 2kV differential
Input-output isolation
3.75kV ac rms
Humidity
95% max non-condensing
Thermal trip
Internal self-resetting
Ambient temperature range
-25oC to 50oC
Dimming range
100% - 5%
Terminal blocks
Rising clamp 10mm pitch input, 5mm pitch output
Enclosure
White polycarbonate UL94-V0 rated
Wire size
12-24 AWG / 0.5mm2 to 1.5mm2
Case Style
Dimensions
Weight
Box Quantity
IP Rating
A - Flying leads
151mm x 32.5mm x 32.50mm
132 or 260g Potted
50
IP66
B - Integral
150mm x 32mm x 32mm
115g
50
IP20
Tolerance: + or - 0.3mm
Harvard Technology Ltd.
EU - Tyler Close, Normanton, Wakefield, WF6 1RL, UK Tel: +44 (0)113 383 1000 Fax: +44 (0)113 383 1010
USA - Suite 330, 9171 Towne Centre Drive, San Diego, California, 92122 Tel: (858) 882 - 3844
www.HarvardTechnology.com
LED DRIVERS
Variants
Current
LED String
Voltage
Max. Tc
Temperature
CL33-700SA-UNI-A/B
350/700mA
16V to 48V
80oC
CL33-700S2A-UNI-A/B
500/700mA
16V to 48V
85oC
CL33-1050SA-UNI-A/B
500/1050mA
16V to
31.5V
80oC
CL33-1050S2A-UNI-A/B
700/1050mA
16V to
31.5V
80oC
Part number
Output power range
33W
(17W @350mA)
33W
(24W @500mA)
33W
(16W @500mA)
33W
(22W @700mA)
Power Factor
at full load
Efficiency
at full load
>0.95 @ 120V
>0.90 @ 277V
86%
>0.95 @ 120V
>0.90 @ 277V
86%
>0.95 @ 120V
>0.90 @ 277V
86%
>0.95 @ 120V
>0.90 @ 277V
86%
Compliance
Approval
Standards
UL8750, UL1310, CSA C22.2 NO.223-M91, CSA C22.2 NO.1071-01, IEC60929, Annex E/ EN62031
UL
0-10V Dimming control output
A voltage between 0V and 0.2V on this terminal gives minimum light output (5% of maximum)
A voltage of 10V gives maximum light output. Between 0V and 10V terminal voltage, the light output is
continuously variable.
The negative terminal of the 0-10V and LED negative are not isolated from each other, this means that the insulation
class of the external 0-10V controller may affect the ground isolation and SELV rating of the LED output.
To maintain SELV isolation of the driver output the 1-10V dimming controller and network should have reinforced or
double insulation from the mains supply.
Setting the desired current
A-Style – For the higher of the two currents the two brown wires must be kept separate, i.e. open circuit. The end
of the wires should be isolated to avoid short circuits. For the lower current the two brown wires should be shorted
together with the connection isolated to avoid short circuits.
B-Style – Drivers are provided set to the highest current of the two supported. In order to set the lower current the
DIP switch should be moved to the alternate position as shown on the label.
Harvard Technology Ltd.
EU - Tyler Close, Normanton, Wakefield, WF6 1RL, UK Tel: +44 (0)113 383 1000 Fax: +44 (0)113 383 1010
USA - Suite 330, 9171 Towne Centre Drive, San Diego, California, 92122 Tel: (858) 882 - 3844
www.HarvardTechnology.com
4
3
6
5
7
8
A
2
3
2
LED DRIVERS
4
4
3
6
5
7
8
A
6
5
7
8
B
A
Dimensions
B
A Style146 ±0.20
B Style
C
B
146 ±0.20
150
150
150
C
NAME
DRAWN
CHK'D
WS
DEBUR AND
BREAK SHARP
EDGES
FINISH:
SIGNATURE
DATE
MFG
Q.A
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
MATERIAL:
NAME
DRAWN
3
4
CHK'D
32.50 ±0.20 LED driver
A-style
DEBUR AND
BREAK SHARP
EDGES
WS
4
NAME
DRAWN
WS
DO NOT SCALE DRAWING
SIGNATURE
N/A
DATE
A3
TITLE:
A-style LED driver
20/02/13
SCALE:1:1
SHEET 1 OF 1
DEBUR AND
BREAK SHARP
EDGES
FINISH:
SIGNATURE
MATERIAL:
DO NOT SCALE DRAWING
DWG NO.
N/A
DATE
REVISION
Harvard Engineering
DWG NO.
APPV'D
3
D
144
REVISION
Harvard Engineering
FINISH:
WEIGHT:
UNLESS OTHERWISE SPECIFIED:
MFG
DIMENSIONS ARE IN MILLIMETERS
SURFACE
FINISH:
Q.A
TOLERANCES:
LINEAR:
ANGULAR:
2
144
144
TITLE:
20/02/13
Output Current Vs Resistors Values
APPV'D
DO NOT SCALE DRAWING
32
32 ±0.20
32.50 ±0.20
32 ±0.20
151
151 ±0.20
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
D
WEIGHT:
SCALE:1:1
TITLE:
REVISION
Harvard Engineering
A3
SHEET 1 OF 1
A-style LED driver
20/02/13
CHK'D
APPV'D
MFG
Q.A
MATERIAL:
A3
DWG NO.
N/A
2
3
4
WEIGHT:
SCALE:1:1
32
32
32
32.50
32.50
±0.20
151 ±0.20
32
32
D
32.50
32 ±0.20
146
146
±0.20
151 ±0.20
C
SHEET 1 OF 1
Harvard Technology Ltd.
EU - Tyler Close, Normanton, Wakefield, WF6 1RL, UK Tel: +44 (0)113 383 1000 Fax: +44 (0)113 383 1010
USA - Suite 330, 9171 Towne Centre Drive, San Diego, California, 92122 Tel: (858) 882 - 3844
www.HarvardTechnology.com