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Controls
Manual Motor Protectors - MPW Series
www.weg.net
Outstanding Design
WEG Manual Motor Protectors are the
state-of-the-art products available for
worldwide market. With the latest
technology and design, you’ll find how easy
is to save panel space and to face almost
any application in motor control. Built in a
very compact frame size, WEG’s Manual
Motor Protectors combine, added
information short-circuit and motor overload
protections in just one component.
These devices include a three-position
rotary ON-TRIP-OFF handle, which can be
padlocked in the OFF position.
WEG Manual Motor Protectors are
designed for DIN rail mounting, while lugs
for direct panel mounting are also available
as an accessory.
Even Better Performance
Motor protectors include some of the same
features you can find in WEG’s RW bimetal
overload relays, such as Class 10
protection, ambient temperature
compensation and phase failure sensitivity,
which give you all the protection your
motors need. For short circuit protection,
the magnetic device trips at 13 times the
maximum FLA of the component.
A product for the world
Motor protectors are designed for use
according to international standards, making
them suitable for applications all over the
world. Because of the multiple approvals
WEG’s Manual Motor Protectors can be
used for many different applications. IEC
standards recognize MPW series as a Circuit
Breaker. According to this, different functions
are available:
g
Motor Circuit Protection
g
Manual Disconnect
g
Main Switch
g
Emergency Disconnect
So, if you export your motor control panels
outside the U.S. and Canada, the MPW
series are your right choice. Also, UL508
has MPW series listed as Motor Controller,
allowing them to be used in several different
configurations:
g
Manual Motor Starter,
g
Combination Starter,
g
Group Motor Installations,
g
Motor Disconnect Applications
So, if you use your motor control panels
inside the U.S. and Canada, the MPW series
are still your right choice.
When using WEG’s contactors connected
with the MPW series, you can provide a
remote control either using pushbuttons or
any other remote control device. Manual
Motor Protectors can handle a wide range
of applications, not only three phase motor
control but single phase and DC motors as
well.
Certifications
CONTROLS
WEG Automation - Products and Solutions 197
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www.weg.net
Controls
Manual Motor Protectors - MPW Series
Standard Features
g
High short-circuit interrupting rating – up to 50kA @ 480V
g
Current limiting short-circuit protection
g
Thermal overload protection Class 10
g
Phase loss sensitivity protection
g
Ambient temperature compensation -4ºF +140ºF (-20ºC +60ºC)
g
Lockable rotary handle mechanism for disconnect
g
Visual indication of ON-TRIP-OFF status
g
35mm DIN-rail mounting
g
Snap-in accessories
g
Finger safe protected terminals
g
Rated for DC applications
g
Test trip feature
g
Coordination type 2 per IEC60947-4-1 and UL508E, with WEG’s CWM contactors
g
Manual Motor Starters
g
Group motor installations (per NEC Article 430)
g
Multi-motor starter applications
g
Suitable for motor disconnect applications
g
UL Type-E self protected combination starter
Adjustable
Overload Release
(acc. to motor’s FL A)
Temperature
Compensation
(-4 to +140F)
Rotary Handle
Lockable in Off-position
Fixed Short-Circuit Release
13 x In
CONTROLS
Phase-loss Sensitivity
Test Trip
Switch
Handle with
Trip Position
Indication
198
1-800-ASK-4WEG
Data is subject to change without notice.
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WEG‘s Self Protected Combination Type-E Motor Controller
with Unmatched Features and Benefits
www.weg.net
Combination starters are the most common type of packaged motor
controllers. They are called combination because of their construction
and combined functions required by the US National Electric Code
(NEC): Motor Disconnect, Motor Branch Circuit Protection, Motor
Controller and Motor Overload Protection. UL1 currently recognizes
six different types of combination starters that meet the requirements
of a motor branch circuit.
Constructions Types A through D are traditional starters that use either
a listed disconnect switch and fuses or a listed circuit breakers as the
disconnect means and for short circuit protection. Each type uses a
separate UL 508 listed motor controller and overload relay. Recently
revisions on UL508 introduced the Type E and Type F starters.
UL
Combination
Starter Type
A
B
C
D
E
F
Disconnected Motor Controller
UL 98 Manual
Disconnect
UL 489 Inverse Time Circuit
UL 489 Instantaneous Trip
UL 508 Manual Self-protected
Device Used for Component Function
Branch Circuit
Protection
UL 248 Fuses
UL 508 Motor
Short Circuit
Protector
Breaker
Circuit Breaker
UL 508 Self-protected Combination Controller
Combination Controller
UL 508 Magnetic
or Solid State
UL 508 Magnetic or
Solid State Controller
Controller
Protected Combination
Type E starter is a self-protected combination motor controller that
combines in a single device all the required functions of a combination
starter and eliminates any additional requirements for upstream
fuses or circuit breakers. These starters clear faults within their rating
without sustaining damage to themselves or the rest of the system,
being able to get back into operation. There are two arrangements
for a Type E starter: manual (as stand-alone) and associated with a
contactor. Both are submitted to the same tests sequences.
Type F starter consists of a listed manual Type E combined with
a UL508 listed contactor. The difference between the two types is
related to the absence of self-protected characteristic; hence, Type
F has softened tests sequences allowing damages on the contactor
after a fault.
Motor OL Relay
UL 508 Motor
Overload Relay
UL 508 Manual Self-
Controller
WEG’s self-protected combination Type E combines all of these
functions within a single product for a manual operation or within a set
of two products (with a listed contactor) for a remote operation. Both
options must be associated with the accessories Line Side Terminal
(LST25) and Tripping Signaling Block (TSB-22) to accomplish UL508/
UL489 requirements for spacing (clearance and creepage) and short-
circuit indication.
They are recommended for a wide range of applications where
full voltage combination starters are required. Some examples are:
Pumps, Industrial Washing Machines, Compressors, Blowers, Cutting
Machines, Conveyors, Lumber Processing and many others.
The Manual Type E Starter is a stand-alone product – MPW series
– that ranges from fractional up to 75Hp@460V motors (0.16 to
100A) with up to 100KA@480V and 50KA@600V interrupting short-
circuit capability. Together with some accessories that complete this
product line, the MPW series are a compact and reliable solution for
starting and protecting motors.
WEG also offers an option for a remote Type E & F Starter, combining
the MPW series (as a manual type E) together with a contactor
from CWM Series. As this version undergoes the same tests, it has
the same horse power ratings and short-circuit capabilities as the
manual Type E. However, it provides remote operation and controlling
of the application through the contactor’s coil.
In addition to its popular line of UL enclosed starters, WEG is also
providing a NEMA 4X (IP65) enclosed Type E & F Starter – ESWE
& ESWF – featuring as standard a handle for disconnect means
through the door and a contactor for remote operation. Provisions
for control circuit transformer installation as well as pilot lights are
also included.
CONTROLS
Tests performed in order to fulfill the Type E requirements are
considered the hardest in UL508, including short-circuit and
endurance tests on the same sample. As a comparison, UL
Type E exceeds the requirements for Type F and IEC60947-4-1
Coordination type 2.
TYPES A - D COMBINATION STARTERS TYPES E & F COMBINATION STARTERS
WEG Automation - Products and Solutions 199
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