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The Thomas Research Products SD2-120 is a bi-level step-dimming control module specifically designed for use with 0-10V dimmable LED drivers. This module eliminates the need for expensive dimmer units by utilizing standard wall switches to control light output, offering quick switching between 100% and 50% brightness levels, or off.
Electrically, the SD2-120 operates with a nominal input voltage of 120 Vac (100-132 V Min/Max) and a frequency range of 47-63 Hz. It supports a maximum pass current of 1.0A at 120Vac input and can handle a maximum LED driver power of 100W. The insertion loss is less than 1.5W at 100W LED driver power. The control output is Class 2, 0-10V, operating in current sinking mode with a maximum of 50mA.
Environmentally, the module can be stored between -40°C and +85°C, with a maximum case temperature of 75°C and a minimum operating temperature of -40°C. It operates within a humidity range of 5% to 95%. The module boasts a lifetime of 1,000,000 switching cycles. It is designed to be installed within the luminaire enclosure as required by UL standards.
This dimming module is compatible with standard wallbox switches and can also work with occupancy sensors. It is intended for use with 0-10V dimmable LED drivers, though compatibility with drivers from manufacturers other than Thomas Research Products cannot be assured without verification.
The input voltage range is 100-132 Vac.
The maximum LED driver power is 100W.
The minimum operating temperature is -40°C.
The warranty period is 5 years.
The SD2-120 works with two standard wall switches to provide quick switching between 100% and 50% light output from LED luminaires.
The SD2-120 is designed for use with 0-10V dimmable LED drivers.