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Master Control Switch (NFP MCS)
The ILC NFP MCS Switch is a single pole double throw (SPDT), momentary contact, normally open NFP switch that mounts in a standard junction box.- Up to 8 Switches and LED pilot light on a single 2-gang plate
- Plate available in durable anodized brushed aluminum, stainless steel or painted white
- 1 to 8 Momentary center OFF rocker switches with or without LED pilot
- Available in 12 standard configurations
- Phenolic or engraved lettering (optional)
- Mounts to standard electrical gang boxes
- Switch available in black, white, or gray
- Custom options such as special colors or material available upon request
Features
The NFP Master Control Switch (NFP MCS) is designed to switch the TRs connected to the IFM. The three wire switch is connected to the IFM with the red wire to the ON terminal, the black wire to the OFF terminal and the yellow wire to the system common yellow. The NFP MCS was designed with a 3 Amp current rating because it must carry the switching current of all the TRs interfaced under one master. The number of TRs that can be controlled from an MCS depends on the mixture of phase driving the mastered TRs. Figure A shows the half-wave, 200 mA current that a PCS must conduct. If three TRs on the same phase are connected to an IFM, the currents will add as shown in Figure B. If the same three TRs were powered by three different phases, the currents in the MCS control loop would sum up as in Figure C.
Specifications
Physical
- Plate material:
- Aluminum
- Stainless Steel
- Painted White
- Mounts to standard electrical 1 or 2 gang switch box
- Mounting screws provided
- Switch size: 9/16 x 13/16
- Switch colors:
- White
- Black (standard)
- Switch Identification (optional):
- Phenolic Labels
- Engraved
Electrical
- Switch plates provided with center OFF momentary rocker switch for ON/OFF operation.
- Single pole double throw (SPDT), momentary
- Quiet "click" provides both tactile and sound feedback when actuated
Operating Environment
- Location Interior space
- Operating 0° to 50° C (32° to 112° F) Temperature
- Relative 10% to 95% Humidity Non-condensing
- Atmosphere Non-explosive, Non-corrosive
- Vibration Stationary application NEMA Level A
Related Downloadable Documents
The following are the most commonly related PDF documents used with this product. Select Resource Library at the top of this page for a comprehensive listing of all PDF documents and all categories or contact ILC directly for personal assistance.