Specifications - State of Delaware

SECTION 262816 - CIRCUIT AND MOTOR DISCONNECT SWITCH
PART 1 - GENERAL
1.01 SUMMARY:
A. This Section specifies circuit and motor disconnects.
B. Related Work Specified Elsewhere: The following Sections contain requirements that relate to
this Section.
1. Fuses: SECTION 262813.
2. Manual switches used as motor disconnects: SECTION 262726 - WIRING DEVICES.
3. Combination type starters which incorporate disconnect switches in the same enclosure
as the starter and manual motor starters which include the disconnect function as part of
the starter switch assembly: SECTION 262900 - MOTOR CONTROLLERS,
CONTACTORS, PUSH BUTTONS, SELECTOR SWITCHES, INCLUDING LIGHTS
AND RELAYS.
4. Electrical Identification: SECTION 260553.
1.02 REFERENCES:
A. Applicable Standards: Comply with applicable requirements of the following standards.
1. National Electrical Manufacturers Association (NEMA):
a. 250 - Enclosures for Electrical Equipment (1,000V maximum).
b. KS 1 - Enclosed Switches.
2. National Fire Protection Association (NFPA):
a. 70 - National Electrical Code (NEC).
3. Underwriters Laboratories (UL):
a. 98 - Enclosed and Dead-Front Switches.
b. 869 - Electrical Service Equipment.
c. 894 - Switches for Use in Hazardous (Classified) Locations.
d. 977 - Fused Power-Circuit Devices.
1.03 SUBMITTALS:
A. Refer to DIVISION 01 and SECTION 260000 - BASIC ELECTRICAL REQUIREMENTS for
administrative and procedural requirements for submittals.
B. Includes, but not limited to, the following:
1. Product data for each type of product specified.
2. Ampere rating and fused switch short-circuit interrupting ratings.
3. Maintenance data for circuit and motor disconnects for inclusion in Operation and
Maintenance Manual specified in DIVISION 01 and SECTION 260000 - BASIC
ELECTRICAL REQUIREMENTS.
PART 2 - PRODUCTS
2.01 CIRCUIT AND MOTOR DISCONNECT SWITCHES:
A. General: Provide 3-pole circuit and motor disconnect switches in types, sizes, duties, features,
ampere ratings, short-circuit interrupting ratings, energy withstand ratings, and enclosures as
indicated. Provide NEMA 1 enclosure for indoor dry locations. For outdoor disconnect
switches and other indicated wet locations (including hangar bay), provide NEMA 3R
enclosures with raintight hubs. Provide enclosure suitable for hazardous location where
indicated. Switch mechanism shall be interlocked with door mechanism to prevent door from
opening when switch is closed and to prevent switch from being closed when door is open
(provide defeat of this interlock to be used by qualified personnel.) Switch mechanism shall
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