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        GL-EXP-DIMU-CN

        Crestron Green Light® Universal Dimmer Expansion Module, Cresnet® Communications

        An advanced single-channel dimmer module controlled by Cresnet® communications. Supports dimmable LED, incandescent, electronic low-voltage, magnetic low-voltage, and 2-wire fluorescent lighting loads. UL® 924 listed for emergency lighting control applications.

        The GL-EXP-DIMU-CN is a single-channel universal dimmer expansion module that allows for added lighting zones without an additional cabinet install. The expansion module controls electronic and magnetic low‑voltage, LED, incandescent, and 2‑wire fluorescent loads. Utilizing proprietary zero‑cross filter technology, the GL-EXP-DIMU-CN compensates for line voltage and frequency fluctuations to provide immunity to power line noise and a dramatic reduction in lamp flicker.

        Auto‑Detecting Universal Dimming
        Under normal operation, the GL-EXP-DIMU-CN detects the connected load type and selects the appropriate operating mode automatically. Reverse phase (trailing edge) mode supports incandescent and electronic low-voltage load types, while forward phase (leading edge) mode handles magnetic low-voltage and other inductive load types. Center phase mode is also available, combining reverse and forward phase load control to address special cases. The operative mode is indicated by two LEDs located on the front panel.

        Cresnet® Communications
        The GL-EXP-DIMU-CN interfaces with a Crestron control system via Cresnet. Cresnet is a simple 4‑wire network bus that provides the communications backbone for a system of Crestron lighting dimmers, switches, keypads, shades, thermostats, and other devices.

        Emergency Lighting Control
        The GL-EXP-DIMU-CN is UL® 924 listed for use in controlling an emergency lighting load. In the event of a power failure, a contact closure from a power loss sensor (GLS-PLS-120/277, sold separately) activates the override mode in the GL-EXP-DIMU-CN to turn on the lighting load if it is off (assuming line power is supplied by a backup power source). The override dimming level can be preset to any value when commissioning the lighting system, so even if the load is already on prior to a power failure, it will change to the preset level when override mode is activated.

        Plenum Rated NEMA Enclosure
        The GL-EXP-DIMU-CN is designed to be mounted to a vertical surface and is UL 2043 compliant to allow for installation in an environmental air-handling space above a suspended ceiling. Conduit knockouts are provided on the bottom and lower sides of the unit. All connections are made via screw terminals behind the front cover.

         
        Key Features
        • Single-channel universal lighting dimmer
        • Crestron® system integration via Cresnet® communications
        • Supports dimmable LED, incandescent, electronic low-voltage, magnetic low-voltage, and 2-wire fluorescent lighting loads
        • Rated 16 A at 100-277 VAC
        • Auto load type detection
        • Forward and reverse phase modes
        • Zero-cross filter technology for reduced lamp flicker
        • Extreme stability under noisy power line conditions
        • Built-in air gap relay
        • Closure-activated override mode
        • UL® 924 listed for emergency lighting control
        • Surface mountable NEMA Type 1 enclosure
        • Mounts on a wall panel or above a suspended ceiling
        • UL 2043 listed for installation in an environmental air handling space

        This product may be purchased from select authorized Crestron dealers and distributors. To find a dealer or distributor, please contact the Crestron sales representative for your area. A list of sales representatives is available online at www.crestron.com/How-To-Buy/Find-a-Representative or by calling 855‑263‑8754.

        This product is covered under the Crestron standard limited warranty. Refer to www.crestron.com/warranty for full details.

        The specific patents that cover Crestron products are listed online at patents.crestron.com.

        Certain Crestron products contain open source software. For specific information, please visit www.crestron.com/opensource.

        Crestron, the Crestron logo, Cresnet, and Crestron Green Light are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. UL is either a trademark or registered trademark of Underwriters Laboratories, Inc. in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography. Specifications are subject to change without notice. ©2020 Crestron Electronics, Inc.

         
        Load Control
        Dimmer Channels 1
        Load Rating 16 A
        Line Voltage 100-277 VAC, 50/60 Hz
        Dimmable Load Types Incandescent, LED, electronic low-voltage, magnetic low-voltage, 2-wire fluorescent
        Communications
        Cresnet Cresnet slave mode
        Connections
        NEUT (3) Captive screw terminals;
        Neutral connections for feed and load;
        24 to 10 AWG (0.25 to 4.0 mm2) wire size
        LINE (2) Captive screw terminals;
        Line power feed input and pass-through;
        24 to 10 AWG (0.25 to 4.0 mm2) wire size
        DIM (1) Captive screw terminal;
        Dimmed load output;
        24 to 10 AWG (0.25 to 4.0 mm2) wire size
        OVERRIDE (2) Captive screw terminals;
        Low-voltage contact closure sensing input;
        Activates override mode when a closure is sensed;
        26 to 14 AWG (0.14 to 1.5 mm2) wire size;
        For use with Class 2 wiring only
        CRESNET (4) Captive screw terminals;
        Cresnet slave port (communications only, does not use Cresnet power);
        26 to 14 AWG (0.14 to 1.5 mm2) wire size;
        For use with Class 2 wiring only
        Ground (1) 3-terminal grounding block
        Controls and Indicators
        PWR (1) Green LED, indicates line power is applied to either LINE terminal
        NET (1) Yellow LED, indicates Cresnet network communication
        ERR (1) Red LED, indicates a variety of error conditions via blinking patterns (refer to the installation guide)
        ON/OFF (1) Pushbutton and (1) red LED, pushbutton toggles the load output on and off (press and hold to cycle the dimming level up and down), LED indicates the load output is energized
        FWD (1) Red LED, indicates forward phase mode (or center phase mode if REV indicator is also on)
        REV (1) Red LED, indicates reverse phase mode (or center phase mode if FWD indicator is also on)
        RESET (1) Pushbutton, initiates hardware reset
        SW1 (1) Two-position slide switch (behind front cover), enables/disables the zero-cross detection filter (disabled by default)
        SW2 (1) Two-position slide switch (behind front cover), not used
        SW3, SW4 (2) Two-position slide switches (behind front cover); selects auto detect (default), forward phase, reverse phase, or center phase dimming mode
        Environmental
        Temperature 32° to 104° F (0° to 40° C)
        Humidity 10% to 90% RH (noncondensing)
        Construction
        Enclosure NEMA Type 1, galvanized steel with gray matte powder coated removable front cover panel, extruded aluminum heat sink on rear, (2) integral mounting flanges, (4) 0.5 in. (13 mm) or 0.75 in. (19 mm) conduit knockouts on bottom and lower left & right sides
        Mounting Surface mount, must be oriented upright and mounted to a vertical surface with 6 in. (153 mm) minimum spacing above and below for proper ventilation and heat dissipation
        Dimensions
        Height 8.78 in. (223 mm)
        Width 6.39 in. (163 mm)
        Depth 3.16 in. (81 mm)
        Weight
        3.43 lb (1.56 kg)
        Compliance
        C(UL)US, UL 924, UL 2043, FCC Part 15 Class A commercial use

        This product may be purchased from select authorized Crestron dealers and distributors. To find a dealer or distributor, please contact the Crestron sales representative for your area. A list of sales representatives is available online at www.crestron.com/How-To-Buy/Find-a-Representative or by calling 855‑263‑8754.

        This product is covered under the Crestron standard limited warranty. Refer to www.crestron.com/warranty for full details.

        The specific patents that cover Crestron products are listed online at patents.crestron.com.

        Certain Crestron products contain open source software. For specific information, please visit www.crestron.com/opensource.

        Crestron, the Crestron logo, Cresnet, and Crestron Green Light are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. UL is either a trademark or registered trademark of Underwriters Laboratories, Inc. in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography. Specifications are subject to change without notice. ©2020 Crestron Electronics, Inc.