Page 780 - 2018_IRC

CHAPTER 40

DEVICES AND LUMINAIRES

ICC user note:
About this chapter: Chapter 40 addresses the "trim-out" (final) stage of construction in which devices and fixtures are installed and con-
nected to the installed wiring system.
This chapter covers receptacle ratings and installation, lighting fixture installation, construction and location, and grounding of devices and fix-
tures.

SECTION E4001 6 feet 7 inches (2007 mm) above the floor or working plat-
SWITCHES form. [404.8(A)]
E4001.1 Rating and application of snap switches. Switches Exception: This section shall not apply to switches and
shall be used within their ratings and shall control only the circuit breakers that are accessible by portable means and
following loads: are installed adjacent to the motors, appliances and other
1. Resistive and inductive loads not exceeding the ampere equipment that they supply. [404.8(A) Exception]
rating of the switch at the voltage involved. E4001.7 Damp or wet locations. A surface mounted switch
2. Tungsten-filament lamp loads not exceeding the or circuit breaker located in a damp or wet location or outside
ampere rating of the switch at 120 volts. of a building shall be enclosed in a weatherproof enclosure or
cabinet. A flush-mounted switch or circuit breaker in a damp
3. Motor loads not exceeding 80 percent of the ampere or wet location shall be equipped with a weatherproof cover.
rating of the switch at its rated voltage. [404.14(A)]
Switches shall not be installed within wet locations in tub or
E4001.2 CO/ALR snap switches. Snap switches rated 20 shower spaces unless installed as part of a listed tub or
amperes or less directly connected to aluminum conductors shower assembly. [404.4(A), (B), and (C)]
shall be marked CO/ALR. [404.14(C)]
E4001.8 Grounded conductors. Switches or circuit breakers
E4001.3 Indicating. General-use and motor-circuit switches shall not disconnect the grounded conductor of a circuit
and circuit breakers shall clearly indicate whether they are in except where the switch or circuit breaker simultaneously
the open OFF or closed ON position. Where single-throw disconnects all conductors of the circuit. [404.2(B)]
switches or circuit breaker handles are operated vertically
rather than rotationally or horizontally, the up position of the E4001.9 Switch connections. Three- and four-way switches
handle shall be the closed (on) position. shall be wired so that all switching occurs only in the
ungrounded circuit conductor. Color coding of switch con-
E4001.4 Time switches and similar devices. Time switches nection conductors shall comply with Section E3407.3.
and similar devices shall be of the enclosed type or shall be Where in metal raceways or metal-jacketed cables, wiring
mounted in cabinets or boxes or equipment enclosures. A bar- between switches and outlets shall be in accordance with Sec-
rier shall be used around energized parts to prevent operator tion E3406.7. [404.2(A)]
exposure when making manual adjustments or switching.
(404.5) Exception: Switch loops do not require a grounded con-
ductor. [404.2(A) Exception]
E4001.5 Grounding of enclosures. Metal enclosures for
switches or circuit breakers shall be connected to an equip- E4001.10 Box mounted. Flush-type snap switches mounted
ment grounding conductor. Metal enclosures for switches or in boxes that are recessed from the finished wall surfaces as
circuit breakers used as service equipment shall comply with covered in Section E3906.5 shall be installed so that the
the provisions of Section E3609.4. Where nonmetallic enclo- extension plaster ears are seated against the surface of the
sures are used with metal raceways or metal-armored cables, wall. Flush-type snap switches mounted in boxes that are
provisions shall be made for connecting the equipment flush with the finished wall surface or project therefrom shall
grounding conductor. be installed so that the mounting yoke or strap of the switch is
seated against the box.
Nonmetallic boxes for switches shall be installed with a
wiring method that provides or includes an equipment ground- Screws used for the purpose of attaching a snap switch to a
ing conductor. (404.12) box shall be of the type provided with a listed snap switch, or
shall be machine screws having 32 threads per inch or part of
E4001.6 Access. Switches and circuit breakers used as listed assemblies or systems, in accordance with the manufac-
switches shall be located to allow operation from a readily turer’s instructions. [404.10(B)]
accessible location. Such devices shall be installed so that the
center of the grip of the operating handle of the switch or cir- E4001.11 Snap switch faceplates. Faceplates provided for
cuit breaker, when in its highest position, will not be more than snap switches mounted in boxes and other enclosures shall be
installed so as to completely cover the opening and, where the

2018 INTERNATIONAL RESIDENTIAL CODE ® 755
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