Sylvania D3208 dimensions Ganging and Derating Lighting Controls

GANGING AND DERATING LIGHTING CONTROLS

Commercial Grade Lighting Controls

Ganging and Derating Box-Mounted Lighting Controls

Ganging is an installation practice where two or more lighting controls are mounted side-by-side using the required number of connected wallboxes. Ganging may require the removal of part of the fins on Architectural Dimmers or part of the mounting strap on strap-mounted devices. In Architectural Dimmers, the metallic fins help dissipate heat from within the device. Strap mounted dimmers use the mounting strap for the same purpose. Therefore, removing a portion of the fins or strap for ganging purposes will require derating the dimmers to prevent them from overheating.

Ganging and Derating Leviton Lighting Controls

When ganging Mural, True Touch, TouchPoint, ToggleTouch and IllumaTech controls, the side sections of the mounting strap must be removed. Use pliers to carefully bend side sections back and forth until they break off. The side sections of the strap dissipate heat, so removing them requires derating the dimmer’s capacity. See Chart 1.

Note that Leviton SureSlide and Trimatron lighting controls can be ganged without removing any sections of their mounting straps. However, SureSlide and Trimatron controls must also be derated when they’re ganged.

Maximum Load Per Dimmer for Multi-Ganging All Strap-Mounted Dimmers

Chart 1

Dimmer	Single	2-Gang	More Than
Rating			2-Gang
500W	500W	400W	300W
600W	600W	500W	400W
1000W	1000W	800W	700W
400VA	400VA	350VA	250VA
600VA*	600VA	500VA	400VA
1000VA	1000VA	800VA	700VA

*Except IPX06-7, which requires no derating

Maximum Bulb Wattage for Magnetic Low-Voltage Lighting

The capacity of a magnetic low-voltage dimmer is its VA rating. If a wattage rating is also listed (as in this book), it is merely an estimate of the lamp wattage that can be placed on a UL-approved magnetic low- voltage transformer without exceeding the dimmer's VA rating. (This is, in turn, based on an estimate of transformer efficiency.)

Chart 2

Power To	Transformer	Lamp Load
Transformer	Efficiency
1000VA	X 80%	= 800W
600VA	X 75%	= 450W

Architectural

Ganging and Leviton Renoir® and Van Gogh® Architectural Lighting Controls

When fins are broken off on wide and narrow controls for ganging purposes, the number of switch boxes required can be quickly determined by referring to the two charts below.

Ganging

Specification

Switch boxes required				Number of Narrow Controls*
for ganging Leviton
	Controls	0	0		1	2	3	4
architectural controls
when no fins are removed:
		0	•		•	•	•	•
	Wideof
		2	4		6	7	9	11
		1	1		3	5	7	8
	Number
		3	7		9	10	11	13
		4	9		11	12	14	16

*Narrow controls must have fins broken off to be ganged.

Switch boxes required				Number of Narrow Controls
for ganging Leviton
		0
			0	1	2	3	4	5	6
architectural controls
when all inside fins
		0	0	1	2	3	4	5	6
are removed:	Controls
		1	1	3	4	5	6	7	8
	Wide	2	3	5	6	7	8	9	10
		3	5	7	8	9	10	11	12
	of
		4	7	9	10	11	12	13	14
	Number
		5	9	11	12	13	14	15	16
		6	11	13	14	15	16	17	18

Lighting Controls

C

For answers to technical questions, call Leviton’s Techline at 1-800-824-3005 17

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com