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INSTALLATION AND SERVICE INSTRUCTIONS FOR FEDERAL MODEL 121X
SERIES C 120 Vac AND 24 Vdc EXPLOSION-PROOF LIGHT
SAFETY MESSAGE TO INSTALLERS
It is important to follow all instructions shipped with this product. This device is to be
installed by a trained electrician who is thoroughly familiar with the National Electri-
cal Code and will follow the NEC Guidelines as well as local codes.
The selection of the mounting location for the device, its controls and the routing of the
wiring is to be accomplished under the direction of the facilities engineer and the safety
engineer. In addition, listed below are some other important safety instructions and
precautions you should follow:
• Read and understand all instructions before installing or operating this equipment.
• Do not connect this light to the system when power is on.
• After installation, ensure that all set screws and threaded joints are properly tight-
ened.
• To prevent ignition of hazardous atmospheres, disconnect the fixture from the sup-
ply circuit before opening. Keep tightly closed when in operation.
• After installation, test the light system to ensure that it is operating properly.
• After testing is complete, provide a copy of this instruction sheet to all personnel.
• Establish a procedure to routinely check the light system for proper activation and
operation.
Failure to follow all safety precautions and instructions may result in property damage,
serious injury, or death.
I. GENERAL
The Model 121X Light is an explosion-proof visual signaling device for hazardous
locations and provides 90 flashes per minute. This light is UL listed for indoor and
outdoor use.
This equipment is suitable for use in Class I, Div. 1, Groups C and D; Class II, Div. I,
Groups E, F and G; Class III and non-hazardous locations.
These devices are intended for permanent installation and operation in accordance
with Title 46, Code of Federal Regulations, Part 183, Sub-part I, Section 183.410,
and the applicable requirements of the American Boat and Yacht Council, Inc., and/
or ANSI / NFPA 302, “Fire Protection Standard for Pleasure and Commercial Motor
Craft.”
WARNING
EXPLOSION HAZARD—This light fixture is not backward compatible with
older products. Do not use this light fixture with the Series A versions of
model CMXC, CMXC-R, PMXC, PMXC-R, WMXC, or WMXC-R mounting acces-
sories. Failure to follow this warning may result in personal injury or death.
Summary of Contents for 121X Series
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