SECTION 16421
MOTOR CONTROLLERS
PART 1 - GENERAL
1.1
SUMMARY
A..
1.2
1.3
1.4
1.5
Section includes manual and magnetic motor controllers in individual enclosures.
REFERENCES
A..
NECA (National Electrical Contractors Association) -Standard of Installation
B..
NEMA AB 1 (National Electrical Manufacturers Association) - Molded Case Circuit
Breakers.
C..
NEMA FU 1 (National Electrical Manufacturers Association) - Fuses.
D..
NEMA ICS 2 (National Electrical Manufacturers Association) - Industrial Control and
Systems: Controllers, Contactors, and Overload Relays Rated Not More Than 2000
Volts AC or 750 Volts DC.
E..
NEMA ICS 5 (National Electrical Manufacturers Association) - Industrial Control and
Systems: Control Circuit and Pilot Devices.
F..
NEMA ICS 6 (National Electrical Manufacturers Association) - Industrial Control and
Systems: Enclosures.
G..
NEMA KS 1 (National Electrical Manufacturers Association) - Enclosed and
Miscellaneous Distribution Equipment Switches (600 Volts Maximum).
H..
NETA ATS (International Electrical Testing Association) - Acceptance Testing
Specifications for Electrical Power Distribution Equipment and Systems
SUBMITTALS
A..
Section 01330 - Submittal Procedures: Submittal procedures.
B..
Product Data: Submit catalog sheets showing voltage, controller size, ratings and size of
switching and overcurrent protective devices, short circuit ratings, dimensions, and
enclosure details.
C..
Test Reports: Indicate field test and inspection procedures and test results.
CLOSEOUT SUBMITTALS
A..
Section 1770 - Execution Requirements: Closeout procedures.
B..
Project Record Documents: Record actual locations and ratings of enclosed controllers.
C..
Operation and Maintenance Data: Submit Replacement parts list for controllers.
QUALIFICATIONS
A..
Manufacturer: Company specializing in manufacturing products specified in this section
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with minimum three years experience.
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PART 2 - PRODUCTS
2.1
2.2
2.3
2.4
MANUAL MOTOR CONTROLLER
A..
Product Description: NEMA ICS 2, AC general-purpose, Class A, manually operated,
full-voltage controller with overload element, red pilot light, NO and NC auxiliary contact,
and push button operator.
B..
Enclosure: NEMA ICS 6, Type as required to meet conditions of installation.
FRACTIONAL-HORSEPOWER MANUAL CONTROLLER
A..
Product Description: NEMA ICS 2, AC general-purpose, Class A, manually operated, fullvoltage controller for fractional horsepower induction motors, with thermal overload unit
and toggle operator.
B..
Enclosure: NEMA ICS 6, Type as required to meet conditions of installation.
MOTOR STARTING SWITCH
A..
Product Description: NEMA ICS 2, AC general-purpose Class A manually operated, fullvoltage controller for fractional horsepower induction motors, without thermal overload
unit, with toggle operator.
B..
Enclosure: NEMA ICS 6, Type 1 as required to meet conditions of installation.
FULL-VOLTAGE NON-REVERSING CONTROLLERS
A..
Product Description: NEMA ICS 2, AC general-purpose Class A magnetic controller for
induction motors rated in horsepower.
B..
Control Voltage: 120 volts, 60 Hertz.
C..
Overload Relay: NEMA ICS 2; melting alloy.
D..
Product Features:
1.
Auxiliary Contacts: NEMA ICS 2, 2 each field convertible contacts in addition to
seal-in contact.
2.
Cover Mounted Pilot Devices: NEMA ICS 5, standard duty type.
3.
Pilot Device Contacts: NEMA ICS 5, Form Z, rated A150.
4.
Pushbuttons: Unguarded type.
5.
Indicating Lights: Resistor, LED type.
6.
Selector Switches: Rotary type.
7.
Relays: NEMA ICS 2.
8.
Control Power Transformers: 120 volt secondary. Provide fused secondary, and
bond unfused leg of secondary to enclosure.
E..
Combination Controllers: Combine motor controllers with disconnect in common
enclosure, using motor circuit protector conforming to NEMA AB 1, with integral
instantaneous magnetic trip in each pole. Obtain IEC Class 2 coordinated component
protection.
F..
Enclosure: NEMA ICS 6, as required to meet conditions. Fabricate enclosure from steel
finished with manufacturer's standard gray enamel.
1.
Interior Dry Locations: Type 1.
2.
Exterior Locations: Type 4X.
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PART 3 - EXECUTION
3.1
GENERAL
A..
3.2
3.3
Provide enclosed controllers for all motorized equipment which do not have factory
installed motor controllers, whether indicated or not, as required by NEC.
INSTALLATION
A..
Install enclosed controllers where indicated, in accordance with NECA "Standard of
Installation."
B..
Install enclosed controllers plumb. Provide supports in accordance with Section 16070.
C..
Height: 5 ft to operating handle.
D..
Select and install overload heater elements in motor controllers to match installed motor
characteristics.
E..
Provide engraved plastic nameplates; refer to Section 16075 for product requirements
and location.
F..
Neatly type label and place inside each motor controller door identifying motor served,
nameplate horsepower, full load amperes, code letter, service factor, and voltage/phase
rating. Place label in clear plastic holder.
FIELD QUALITY CONTROL
A..
Section 1770 - Execution Requirements: Testing, adjusting, and balancing.
B..
Inspect and test in accordance with NETA ATS, except Section 4.
C..
Perform inspections and tests listed in NETA ATS, Section 7.16.1.
END OF SECTION
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