Crestron electronic IPAC-GL1, GLPS-SW-FT, GLPS-HSW Model Numbers, Green Light Power Switching

Green Light Power Switching Crestron Commercial Lighting Design Guide

GLPS-HSWGreen Light Power Switching Panels (MLO) Main Lug Only and (MCB) Main Circuit Breaker Zero-Cross Arcless Relays

The GLPS-HSW Power Switching Panels come standard with 20A branch circuit breakers, and accept 208Y/120 or 480Y/277 volt feeds terminating to main lugs provided. An optional back-fed main circuit breaker may also be specified.

Four panel sizes are available, dubbed “Small,” “Medium,” “Large,” and “Extra Large.” The panel size is ordinarily determined according to the number of control circuits specified, ranging from 8 to 42 circuits per panel. Each control circuit is rated for 16A at 100-277V.

The GLPS-HSW panels utilize Crestron zero-cross arcless relay technology, achieving a relay lifetime of one million cycles. A high-current triac is employed to handle the high-inrush current turn on, especially with certain load types such as HID and electronic ballasts. Within milliseconds, the continuous load is transferred to a robust 50A mechanically-latching relay. All switching occurs at the zero-cross point of the AC waveform under microprocessor control. This is a complete solution eliminating arcing at the physical relay contacts during turn on and turn off, and supports switching of all types of lighting loads up to 16A at 100V to 277V, as well as motors up to 1 HP.

As an option, GLPS-HSW panels may be equipped with 0-10V fluorescent dimming control substituted in place of some or all switching circuits. Consult Crestron Sales Support Services to specify this option.

The GLPS-HSW panels employ field-replaceable lighting control modules, with 8 or 12 control circuits per module, for excellent configurability and serviceability. Each module includes local relay controls and load state indicators for each circuit, plus additional controls and indicators for use during system commissioning.

Individual hinged doors are provided on the front of each GLPS-HSW panel for access to the circuit breaker panelboard and the local controls on each module. As an option, the local control access door may be omitted.

As part of a complete Green Light system, GLPS-HSW panels connect to an IPAC-GL1 lighting control processor (or other 2-Series control system) via the Cresnet® control network. An optional GLA-PWS50 (or equivalent) power supply is also recommended for each panel to provide backup power to the lighting modules.

Remote emergency override mode allows the lighting system program to be overridden while each circuit is set to an override preset state. The override preset for each circuit is set using the local controls on the front of each lighting module. Remote override mode is activated by an external contact closure from a Crestron GLS-PLS-120/277 power loss sensor or other device.

All low-voltage connections to a GLPS-HSW panel are made via a connector block located near the bottom of the panel. Connections are provided for Cresnet communications, backup power supply, and emergency override.

Crestron Green Light Power Switching panels are configured to order, factory assembled and tested prior to shipping. Each panel is engineered to provide a clean and manageable installation with provisions for wire termination and conduit knockouts. On-site installation is fast and easy with all termination points clearly labeled and accessible from

the front.

MODEL NUMBERS

Specifying and ordering a Crestron Green Light Power Switching panel is facilitated using the following model number system. Simply fill in the appropriate entry in each position according to the steps that follow:

GLPS–HSW–MLO–30–120–10K –ND

GLPS-Relay Type-Feed Type-Number of Ckts-Voltage-AIC Rating-Door Option

The above example is for a “Main Lug Only” panel with 30 “HSW” zero-cross arcless relays, 120V / 10kAIC circuit breakers, and no local control access door.

Relay Type: Enter “HSW” to specify zero-cross arcless switching relays.

Notes: For other relay types, refer to the Selection Guide

0-10V fluorescent dimming is also available. Consult Crestron Sales Support Services to specify this option.

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