Advertisement
AC Controls
Magnetic Motor Starters — Full Voltage Non Reversing
3
Size 0–1
⁄
4
With ESP100 Solid State Overload
Key Features (Cont'd)
½
Rugged Industrial Design
½
Dual Voltage, Dual Frequency Coils
½
Overload Test Feature
½
Front Removable Auxiliary Contacts
½
Wide Range of Accessories
½
Easy Coil Access
½
Widest Selection of Overloads in
the Industry
½
Solid State, Melting Alloy, Bimetal, or
Bimetal Ambient Compensated
Overload Protection
½
Exclusive Half Sizes
½
Straight Through Wiring
½
Gravity Dropout
½
Large Silver Cadmium Contacts
½
UL Listed 508 File #E14900
½
CSA Certified File #LR6535
½
Universal Mounting Plate
Application
Class 14 industrial magnetic starters are
designed for across-the-line starting of
single-phase and polyphase motors.
ESP100 starters combine the rugged
characteristics of a NEMA rated contac-
tor with a solid state overload which
provides phase loss protection. It offers
the industrial user greater protection
and added life for motors in heavy duty
applications. The inherent benefits of the
ESP100 result in cost savings as well.
Starter with thermal overload relays
(together with the proper heater ele-
ments) help provide protection to motor
windings from harmful currents and the
resultant temperature rise that may be
caused by overloading the motor, sus-
tained low line voltage, or stalled rotor.
CSI Section 16160
3
Size 0–1
⁄
4
With Melting Alloy Overload
These controls are available in NEMA
sizes 00 through 6. ESP100 starters are
available in NEMA sizes 0 through 6. In
addition to the usual NEMA starter sizes,
four exclusive Half Sizes—1
3
⁄
and 4
1
—are offered. These integral
⁄
2
sizes offer the same rugged, industrial
construction as NEMA sizes, and ensure
efficient operating performance. Half
Sizes provide a real cost savings by cut-
ting down on over capacity when NEMA
sizes exceed the motor ratings.
Across the line or full voltage starting is
used when motor starting torque can be
applied safely and current inrush does
not produce an objectional voltage drop.
All starters are supplied with a NO hold-
ing contact that in conjunction with an
appropriate pilot device will provide low
voltage protection or release.
Features
Size 0–6 Magnetic Starters include the
following standard features:
Molded Coil — Magnetic coils are care-
fully wound and then sealed in epoxy.
Encapsulation helps seal out moisture,
promotes heat transfer, and resists elec-
trical, mechanical, and thermal stresses.
Dual Voltage / Dual Frequency Coil —
Starters are available with dual voltage,
dual frequency coils. They are designed
to operate on either 50 or 60 Hertz.
ESP100 Solid State Overload Relays —
These standard features of the ESP100
provide Extra Starter Performance.
½
True phase loss protection; trips
within 3 seconds.
½
High accuracy trip curves; ± 2%
repeat trip accuracy.
½
Ease of use. Mount, wire and set
FLA.
½
Overload is self protected against
short circuits.
Siemens Electrical Products and Systems
Specification Guide
3
Size 0–1
⁄
4
With Bimetal Overload
½
Overload is self powered and
requires no hard wiring or separate
power source.
½
Simple, versatile adjustment;
, 2
1
, 3
1
,
⁄
⁄
4
2
2
over a 2:1 FLA adjustment range.
Extendable to 4:1 with looping
option.
½
Heaterless construction minimizes
energy costs and the costs of cabinet
ventilation or cooling.
½
Class 20 protection is standard. Class
10 and 30 protection are available.
½
Provides motor protection to
50 / 60 Hertz.
Thermal Overload Relays — Melting
alloy is supplied as standard; optional
bimetal overload relay is available.
Ambient compensated bimetal version is
also available. Bimetal types are convert-
ible from manual to automatic reset and
can be furnished with standard or quick
trip heater elements. Melting alloy over-
loads include a trip indicator and manual
test feature. An isolated normally open or
normally closed contact is available for
use on melting alloy overloads. Bimetal
overloads are also available with NC and
NO (SPDT) Form C contacts.
Starters
15
299
Advertisement
