Page 70
Types of Dimmer Modules
Dual Dimmer Module 000-A20DD-012(120V), -A27 (120/
277V)
The 000-A20DD-012 & -A27 dimmer is capable of driving:
• Regular incandescent, quartz, quartz halogen, tungsten argon and similar lamp
loads
• Magnetic stepdown transformers to operate low voltage incandescent lamp
types
• Certain electronic stepdown transformers (Check exact types for compatibility)
• Neon and cold cathode transformers, of the low power factor type
• Fluorescent dimmer ballasts requiring 0 VDC to +10 V DC control signals (up to
8)
• Fluorescent dimmer ballasts using two wires for both power and control using
the Advance Mark X dimming ballasts
• Fluorescent dimmer ballasts using two wires for both power and control using
the Lutron TuWire™ ballasts
• Non-dim loads that need to be only turned on and off by the module, not
dimmed
• Dimmed loads that require complete turn off at some point (done by correctly
programming each dimmer slot for the load that is to be connected)
There are many different types and brands of fluorescent dimming ballasts and
electronic low voltage transformers; many of these require different types of
dimmers, modules, and control configurations. If the dimmer ballasts found on a
job site are different than the system was designed to drive, it is necessary to
check with the factory for ballast compatibility. We can assist you in verifying
whether the existing dimmer will drive this different ballast, or whether we
suggest changes to accommodate the different ballast type.
Constant Module 000-A20DC-012 (120V), -A27 (120/277V)
Occasionally there is a requirement to provide a circuit from the dimmer cabinet
to a load that is never switched or dimmed. There is a module that fits into one of
the dimmer slots that contains only two 20-amp circuit breakers and no other
components, providing two “constant” circuits.
High Rise Time Module 000-A20HD-012
Incandescent lamps can make a buzzing sound under some dimmed conditions
due to the rapid heating and cooling of the filament at certain brightness settings.
if a circuit of incandescent lamps are being dimmed, and some of the lamps are
near people, this buzzing noise can be objectionable. The 000-A20HD-012
dimmer module has a special "high rise time" filter chokes to further minimize this
n o i s e . T h e c o m p o n e n t s t a k e u p m o r e s p a c e t h a n t h o s e u s e d i n a r e g u l a r d i m m e r,
so this dimmer takes up one module space, but contains only a single dimmer.
To Next Page
Loading...
