Starter Unit Components
Starter Unit Protective Devices
Starter units are available with two types of protective
devices: fusible switches and motor circuit protectors (MCP).
Standard Disconnects
Standard fusible units use the following disconnects:
Siemens Visible Blade 30 - 200A
Siemens Molded Case Switch 400, 600A
Fuse Clips
Fuse clips for Sizes 0 - 5 starters are sized forTime-Delay dual
element fuses, type RK.
Fuse clips are provided for fuses sized to protect unit and
motor from short circuits. Overloads are used for motor run-
ning protection. Fuses in combination starters should not be
sized for running protection. Use of non-time delay fuses may
require a larger size fuse clip and switch size and more unit
space. (See table, page G10 for recommended fuse sizes per
HP for branch circuit protection.)
Optional fuse clips for Class J dimension time delay fuses do
not require additional space.
Standard Switch Sizes Used on Plug-In Units
(Horsepower Rated)
Let Through
I
2
T(x10
6
)
Starter Size
Amps
Siemens
0 - 1
30
.05
2
60
.20
3
100
.50
4
200
2.00
Solid-State Controls
As an industrial technology company, Siemens Controls is
capable of providing a wide variety of solid-state devices in
motor control centers. Typical components may include Soft-
start Controllers,
Variable Frequency Drives,
and
Programmable Logic Controllers.
The TIASTAR motor control center is designed to mount
these, and many other user specified solid state controls.
Programmable Logic Controllers
A full line of PLC’s can be mounted in the TIASTAR motor con-
trol center.
Siemens has the flexibility and expertise to provide a wide
variety of configurations to meet user specified requirements
for programmable logic control applications.
Control Power Transformers (CPTs)
Control power transformers for Sizes 0 - 6 are dual primary
single secondary, encapsulated type, with K type secondary
fuses mounted on the transformer. Dual primary fuses are
supplied on all CPTs larger than 50VA.
Temperatures rise: 55
i
C
Maximum Ambient: 50
i
C
Class A Insulation
UL/CSA Recognized Component
50/60 Hz rated
E5
Siemens Energy & Automation, Inc. 1000 McKee Street Batavia, Illinois 60510
SFIM-7002A-0901
Section E, September, 2001
Figure 14
- S7-300 Programmable Logic Controller
Figure 15
- Control Power Transformer
Содержание TIASTAR SFIM-70020
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