Regl. 5293, art. 210-50(b)
Such receptacle outlets shall not be connected to the
Cite as Reglamento Núm. 5293, Art. 210-50(b)
heater circuits.
(FPN): Listed baseboard heaters include instructions that may not permit their
installation below receptacle outlets.
424-10. Special Permission. Fixed electric space heating equipment and
systems installed by methods other than covered by this article shall be
permitted only by special permission.
424-11. Supply Conductors. Fixed electric space. heating equipment
requiring supply conductors with over 60°C insulation shall be clearly and
permanently marked. This marking shall be plainly visible after installation
and shall be permitted to be adjacent to the field-connection box.
424-12. Locations.
(a) Exposed to Severe Physical Damage. Fixed electric space heating
equipment shall not be used where exposed to severe physical damage
unless adequately protected.
(b) Damp or Wet Locations. Heaters and related equipment installed in
damp or wet locations shall be approved for such locations and shall be
constructed and installed so that water cannot enter or accumulate in or on
wired sections, electrical components, or duct work.
(FPN No. 1): See Section 110-11 for equipment exposed to deteriorating agents.
(FPN No. 2): See Section 680-27 for pool deck areas.
424-13. Spacing from Combustible Materials. Fixed electric space heating equipment shall be installed to provide the required spacing between the
equipment and adjacent combustible material, unless it has been found to be
acceptable where installed in direct contact with combustible material.
424-14. Grounding. All exposed noncurrent-carrying metal parts of fixed
electric space heating equipment likely to become energized shall be
grounded as required in Article 250.
70-362
NATIONAL ELECTRICAL CODE
C. Control and Protection of Fixed Electric
Space Heating Equipment
424-19. Disconnecting Means. Means shall be provided to disconnect
the heater, motor controller(s), and supplementary overcurrent protective
device(s) of all fixed electric space heating equipment from all ungrounded
conductors. Where heating equipment is supplied by more than one
source, the disconnecting means shall be grouped and identified.
(a) Heating Equipment with Supplementary Overcurrent Protection.
The disconnecting means for fixed electric space heating equipment with
supplementary overcurrent protection shall be within sight from the supplementary overcurrent protective device(s), on the supply side of these
devices, if fuses, and, in addition, shall comply with either (1) or (2) below.
(1) Heater Containing No Motor Rated Over 1/8 Horsepower. The
above disconnecting means or unit switches complying with Section 424-
19(c) shall be permitted to serve as the required disconnecting means for
both the motor controller(s) and heater under either item a or b below.
a. The disconnecting means provided is also within sight from the
motor controller(s) and the heater; or
b. The disconnecting means provided shall be capable of being
locked in the open position.
(2) Heater Containing a Motor(s) Rated Over ¹/₈ Horsepower. The
above disconnecting means shall be permitted to serve as the required disconnecting means for both the motor controller(s) and heater by one of the
means specified in items a through d below.
a. Where the disconnecting means is also in sight from the motor
controller(s) and the heater.
b. Where the disconnecting means is not within sight from the
heater, a separate disconnecting means shall be installed, or the disconnecting means shall be capable of being locked in the open position, or
unit switches complying with Section 424-19(c) shall be permitted.
c. Where the disconnecting means is not within sight from the
motor controller location, a disconnecting means complying with Section 430-102 shall be provided.
d. Where the motor is not in sight from the motor controller location, Section 430-102(b) shall apply.
(b) Heating Equipment Without Supplementary Overcurrent Protection.
(1) Without Motor or with Motor Not Over 1/8 Horsepower. For fixed
electric space heating equipment without a motor rated over 1/8 horsepower, the branch-circuit switch or circuit breaker shall be permitted to
serve as the disconnecting means, where the switch or circuit breaker
is within sight from the heater or is capable of being locked in the open
position.
(2) Over 1/8 Horsepower. For motor-driven electric space heating
equipment with a motor rated over 1/8 horsepower, a disconnecting means
shall be located within sight from the motor controller.
Exception: As permitted by Section 424-19(a)(2).