NEMA Contactors and Starters - Tri-State Electrical Supply

33.2
NEMA Contactors and Starters
A200 Series
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Relays—Current Sensing Protective
Relays—Current Sensing Protective
Product Description
The IQ500 is a heaterless,
current-sensing, solid-state
motor protective relay with
optional communications
capabilities. Several functions
are incorporated into the base
relay (IQ502/IQ504) as
standard:
●
●
●
Overload (overcurrent)
protection
Phase unbalance and
phase loss protection
Ground current protection
(Class II)
The base relay can serve as
the initial building block for a
motor protection system by
adding the IQ500M Special
Function Module. The
module can address
application related motor load
functions with the additional
features:
●
●
●
●
Underload protection
Long acceleration
Jam protection
Load control
The IQ500 can provide a costeffective
alternative to
conventional protective relays
such as current relays,
ground fault relays and phase
loss or phase unbalance
relays. Used with the
PowerNet system, a lowcost,
local area
communication network,
information such as current
values, status, setpoint
values and cause of trip can
be displayed remotely. The
IQ500 relay is ideal for a
variety of industrial
applications such as mining,
timber, material handling, air
conditioning compressors,
wastewater treatment plants
and petrochemical industries.
Contents
Description
Page
Contactors—Non-Reversing and Reversing. . . . . . . . . . . . . 64
Starters—Non-Reversing and Reversing . . . . . . . . . . . . . . . 70
Relays—Thermal and Fast Trip. . . . . . . . . . . . . . . . . . . . . . . 91
Thermal Type B, Class 20, Manual Reset . . . . . . . . . . . . . . 93
Thermal Type A, Class 20, Auto/Manual Reset . . . . . . . . . . 96
Type FT Fast Trip, Class 10. . . . . . . . . . . . . . . . . . . . . . . . . . 99
Heater Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Relays—Current Sensing Protective
Standards and Certifications . . . . . . . . . . . . . . . . . . . . . . 105
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
104 Control Products Catalog CA08102001E—August 2010 www.eaton.com