XTOE045CCSS Eaton / Control Automation, XTOE045CCSS Datasheet - Page 2

• Manufacturer Part Number: XTOE045CCSS
• Description: ELECTRONIC OVERLOAD RELAY, XTOE, (9-45A), IEC STAND ALONE
• Manufacturer: Eaton / Control Automation
• Type: Electronic Overloadr

Specifications of XTOE045CCSS

• Application: Electronic Overload Relay
• Brand/series: C440/XT
• Special Features: Selectable Class 10A, 10,20,30
• Fla Range: 0.33 to 1500 A
• Selectable Trip Class: 10A, 10, 20, 30
• Lead Free Status / Rohs Status: RoHS Compliant part
• For Use With: XT Frame C

Benefits
Reliability and Improved Uptime
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Electronic Overload Education
Description
Motor Protection
Thermal overload
Ground fault
Unbalanced phases
(voltage and current)
Phase loss—current
(single-phasing)
C440 provides the users
with a peace of mind
knowing that their
assets are protected
with the highest level
of motor protection and
communication capability
in its class
Extends the life of your
plant assets with
selectable motor
protection features such as
trip class, phase unbalance
and ground fault
Protects against
unnecessary downtime
by discovering changes
in your system (line/load)
with remote monitoring
capabilities
Status LED provides
added assurance that
your valuable assets are
protected by indicating the
overload operational status
Definition
Overload is a condition in which
current draw exceeds 115% of
the full load amperage rating for
an inductive motor.
A line to ground fault.
Uneven voltage or current
between phases in a three-phase
system.
One of the three-phase voltages is
not present.
Flexibility
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Available with NEMA,
IEC and DP contactors
Improves your return on
investment by reducing
inventory carrying costs
with wide FLA adjustment
(5:1) and selectable
trip class
Patented design
incorporates built-in ground
fault protection thus
eliminating the need for
separate CTs and modules
Flexible communication
with optional I/O enables
easy integration into plant
management systems for
remote monitoring and
control
Available as an open
component and in
enclosed control and
motor control center
assemblies
Cause
• An increase in the load or torque that is
• A low voltage supply to the motor
• A poor power factor causing above
A current leakage path to ground.
When a three-phase load is powered with
a poor quality line, the voltage per phase
may be unbalanced.
Multiple causes, loose wire, improper
wiring, grounded phase, open fuse, etc.
being driven by the motor.
causes the current to go high to
maintain the power needed.
normal current draw.
Motor Protection and Monitoring
Control Products Catalog CA08102001E—June 2010 www.eaton.com
Monitoring Capabilities
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Safety
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Individual phase
currents rms
Average three-phase
current rms
Thermal memory
Fault indication (overload,
phase loss, phase
unbalance, ground fault)
IP 20 rated terminal blocks
Available in Eaton’s
industry leading FlashGard
MCCs
Tested to the highest
industry standards such
as UL, CSA, CE and IEC
RoHS compliant
C440/ XT Electronic Overload Relay
• Increase in current draw leads to heat
• Increase in current can increase
through multiple insulation windings,
ultimately leading to motor failure, not to
mention risk to equipment or personnel
Unbalanced voltage causes large
unbalanced currents and as a result this
can lead to motor stator windings being
overloaded, causing excessive heating,
reduced motor efficiency and reduced
insulation life.
Single-phasing can lead to unwanted
motor vibrations in addition to the results
of unbalanced phases as listed above.
Effect if not Protected
An undetected ground fault can burn
and insulation breakdown, which can
cause system failure.
power consumption and waste
valuable energy.
Standards and
Certifications
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C440/XT Protection
• Thermal trip behavior is defined by
• Trip class is settable from 10A,
Fixed protective setting that takes the
starter offline if ground fault current
exceeds 50% of the FLA dial setting,
i.e., if the FLA dial is set to 12A, the
overload relay will trip if the ground
current exceeds 6A.
Fixed protective setting that takes the
starter offline if a phase drops below
50% of the other two phases.
Fixed protective setting that takes the
starter offline if a phase drops below
50% of the other two phases.
UL, CSA and IEC standards.
10, 20, 30
UL
CSA
CE
NEMA
IEC/EN 60947 VDE 0660
ISO 13849-1 (EN954-1)
RoHS
ATEX directive 94/9/EC
Equipment Group 2,
Category 2
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