
18
H
Series 2000
Medium Duty Incremental Rotary Shaft Encoder
Mechanical
Shaft Speed
Shaft Direction
Standard Shaft Sizes (Dia.)
Shaft Extension(s)
Shaft Seals 
Mounting
Bearings
Radial Loading
Axial Loading
Accuracy
Housing
Weight
Connector
6000 RPM maximum
Bidirectional
.2497", .3747"
0.80" with .50x.05" flat
Neoprene or PTFE Options
Refer to dimensional drawings
ABEC 5 Shielded
30 lbs. Operating
15 lbs. Operating
+0.1oof Shaft Rotation Typical
Black Anodized Aluminum
Standard: 14 oz., Sealed: 19 oz. 
6 Pin MS3102 or 18" Cable Out
Electrical
Pulse Rate
Outputs    
10 kHz, up to 200 kHz 
NPN w/ pullup; NPN open collector; PNP sourcing
Line Drivers (5Vdc/TTL level, 8 to 15 Vdc) 
All line drivers have complementary outputs.   
Output Ratings
Open Collector Transistor
Line Drivers   8-15 Vdc
40 Vdc maximum
15 Vdc maximum
5.5 Vdc maximum
8 to 28 Vdc
5 Vdc TTL
Supply Voltage 
5 Vdc with 5V TTL level output
30 mA typical, 50 mA maximum
250 mA maximum
50/50 w/ +20% typical tolerance
Tighter to +5% by spec
5-10 μsec or 25-35 μsec
1 μsec typical, other options available
Supply Current
Current Sinking
Output Duty Cycle
Pulsed Outputs
Rise/Fall Times
See Wiring Diagrams for Pin Outs
Environmental
Operating Temp.
Shock
Vibration
Humidity
Enclosures (Sealed)
(Std)
Electrical Connections
Function
+V
Common
Channel A
Channel B
Channel A
Channel B
Index
C or E*
Index
-20oto +70o C (-4oto +158o F)
50 g’s for 11 Milliseconds
5 to 2000 Hertz at 20 g’s
100% Relative Humidity
NEMA 4 type 
—
 Water-tight
NEMA 12/13 equiv. — Dust-, Oil-Tight
 Enclosure: Standard Series - Industry Standard 2.25"
Cube NEMA 12/13 or NEMA 4 type Sealing
 Flush or Flanged Base Styles
 Anti-Jitter Circuitry, Shatterproof Metal Code Discs -
up to 600 PPR Quadrature
 Internally and Externally Shielded ABEC 5 Stainless
Steel Bearings, Mounted Internally
 Low Supply Current Requirement - 30 milliamps 
typical per encoder, maximum of 50 mA
 Operating Voltage Flexibility - 8 to 28 Vdc or 5 Vdc
TTL Output, 5V or 8 - 15V with line driver
 Operating Temperature Rating designed for extremes,
from -20o to +70o C (-4o to +158o F)
Hercules Encoders
Specifications
6 Pin
B
A
D
E
C
F
Cable Out
D
F
A
B
E
G
C
G
Color
Red
Black
Blue
Brown
White
Green
White
Green
F
* C is standard; for outputs “KI” or “LI” (line driver with index), index pin is E
For the latest specifications visit our website
www.herculesencoders.com