Complete Compiled Specification.pdf - Peck Ormsby Construction

B. COMBINATION STARTER/DISCONNECTS – STAND ALONE UNITS: Subject to compliance
with requirements, provide products manufacturered by one of the following:
Square D
GE
Siemens
Cutler Hammer
2.2 COMBINATION STARTERS
A. Starters: combination type with fused disconnect switch with time delay dual element, 3 pole,
UL Class RK-5 fuses as scheduled; full voltage, non-reversing magnetic starter unless
otherwise shown or noted. Provide quick make, quick break disconnect. Starters shall have
electronic resettable thermal overload elements for all three phases with settings sized for the
actual final motor nameplate full load current. Minimum starter size shall be NEMA 1. For
sizes 4 and above, provide electronic soft start system starter.
B. Each starter shall include:
a. Hand-Off-Automatic selector switch unless otherwise shown or noted. HOA
switch to be of a type that is field convertible to "On/Off" or "Auto/Off".
b. A thermal element reset button.
c. A red transformer type pilot light to indicate when the motor is running.
d. A 120V holding coil.
e. A 480/120V control transformer with primary and secondary fuse protection;
of sufficient VA to handle the holding coil and associated controls. One leg
of the transformer secondary shall be grounded.
f. Two normally open and two normally closed auxiliary contacts.
g. A nameplate engraved with motor identification and Horsepower, Nameplate,
HOA switch, reset button and pilot light shall be mounted in cubicle door. A
door mounted keypad display with indicators, allowing user to program
C. Each electronic solid state starter shall include the items indicated above, plus the following
items:
a. Ramp time, type of start, type of step. Display to show motor current, power
factor, and fault status.
b. Phase loss protection and phase reversal protection.
1. The solid state starter shall utilize an 18 pulse converter design, to maintain minimal
AC line distortion and low harmonics.
2. The Solid State Starter and all components shall be rated to 100,000 AIC.
4. The starter shall have an adjustable ramp start of 0.5 to 180 seconds, and an
adjustable current limit of 0% to 85% of Locked Rotor Current. The starter shall also
have an adjustable Soft Stop from 0 to 60 seconds.
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION March 2, 2009
MOTOR CONTROLLERS Section 16475-2