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ECS Brushes: Grade Descriptions
ECS/IM | ECS/H | ECS/PM | ECS/EG |
ECS/CM
ECS /IM
GRAPHITE / CARBON GRAPHITE
Resin-bonded and high contact resistance and outstanding
commutating ability. This classification may also included GB Series
and X Series grades.
Typical Applications:
Corded AC – Light Duty Demand
• 120V/230V Vacuums
•
Cannister and Upright Vacuums
• Blower Motors
• Light-Duty Power Tool Uses: Palm Sander
High contact drop, low friction,
more suseptible to electrical burning. Long life applications
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IM
GRADE
Resin Bonded
Graphite
  
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ECS
/ H
GRAPHITE / CARBON GRAPHITE
Low
Resistivity with capability to withstand a wide range of current
density. This classification may
also include 9270 Series grades.
Typical Applications:
Corded AC – Medium
Duty Demand
120V Power Tools (H100, H809)
•
Drills
• Hedge Clippers
• String Trimmers
42V Automotive
Battery Electric Vehicles
General DC Applications
Low contact drop, resistivity, friction.
PTS capabilities.
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H GRADE
Carbonized Resin Bonded Graphite
 
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ECS
/ PM
GRAPHITE / CARBON GRAPHITE
High contact resistance without using
a resin binder; less affected by sparking and overloading than
resin-bonded grades. This
classification may also include C or GB designations.
Typical Applications:
Corded AC – Professional
Demand
120V/230V Power Tools
• Sanders
• Circular Saws
• Drills
• Hedge Clippers
120V Lawnmowers
RFI Suppression (230V Europe)
High contact drop, higher
friction, high resistance to electrical burning. Good
for dynamic breaking applications.
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PM GRADE
Pitch Bonded Graphite
 
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ECS
/ EG
ELECTROGRAPHITE
High thermal and electrical conductivity; has good
strength and filming properties, very resistant to the effects of
electrical discharge.
Typical Applications:
Corded AC– Professional,
Industrial Demand
120V Power Tools
•
Hammer Drills
•
Routers
•
Angle Grinders
•
Cut Saw
120V Floor Care
Industrial Motors
Low resistivity, low
friction, excellent heat resistance. Good for performance sensitive
applications.
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EG GRADE
Electrographite  
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ECS
/ CM
COPPER GRAPHITE
Normally these are copper graphite grades to cover
high current, low voltage applications such as portable appliances.This
classification may also include MB designations.
Typical Applications:
DC – All Ranges of Demand
Automotive
• Starters
• Alternators
• Accessories
Cordless Power Tools
Very low resistivity,
high current density, up to 95% metal content available. DC
applications.
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CM GRADE
Copper Graphite  
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