Cutler Hammer, Div of Eaton Corp E51 Technical Specifications
5-90
5
PHOTOELECTRIC
SENSORS
E51 Limit Switch Style, Modular
Wiring Diagrams (Pin numbers are for reference, rely on pin location when wiring)
Operating Voltage Output
2-Wire Sensors
20 – 264V AC or
DC 50/60 Hz
4-Wire Sensors
120V AC
50/60 Hz
10 – 30V DC N.O. and N.C.
Changing light/dark switch on sensor head will reverse output function (N.O. becomes N.C., and N.C. becomes N.O.).
N.O. or N.C.
N.O. and N.C.
NPN
N.O. and N.C.
PNP
Terminal and Cable Models Mini-Connector Models (Face View Male Shown)
White
L1
or +V
Red
Black
L1
Load
Red
Load
Black
+V
Green
Red
Black
+V
Photoelectric Sensors
August 2007
21
Black
Load
L2
Green
21
43
21
43
Orange
White
Green
Orange
White
Green
Load
Load
or (-)
21
43
Load
Load
L2
Orange
White
(-)
(-)
43
L2 or
(-)
L2
(-)
(-)
Load
Load
N.C.
Load
Load
N.C.
Load
N.O.
N.C.
N.O.
Load
N.O.
Load
or +V
+V
L1
L1
+V
Model Selection — Accessories
Description Catalog Number Approximate Dimensions in Inches [mm]
Universal Mounting Bracket 1 hole, includes mounting hardware,
stainless steel
Universal Mounting Bracket 2 hole, includes mounting hardware, steel
E51KH2
E51KH4
Stocked product, typical order quantities guaranteed in stock.
For more information visit: www.eaton.com PG08301004E
5-92
S
5
PHOTOELECTRIC
SENSORS
E51 Limit Switch Style, Modular
Specifications
Description Specification
Output Ratings (NEMA D150)
AC/DC Models
AC Models
DC Models
Protection Latching short circuit protection on 2-wire AC/DC and 4-wire DC models
Indicator LEDs Lights when output is ON. One LED for each output
Enclosure Material Zinc die cast
Gasket Material Viton
Enclosure Ratings NEMA 3, 3S, 4, 4X, 6, 6P, 12 and 13 (IP67)
Hazardous Locations Ratings
Class I
Class II
Class III
Temperature Range -13° to 158°F (-25° to 70°C)
Torque Requirements Switch Body Screws: 25 – 30 in-lb; Sensing Head Screws: 14 – 18 in-lb
Vibration 10 – 55 Hz, 1 mm amplitude
Shock 30g, 11 mS, 1/2 sine wave
Humidity 95% non-condensing
NOTE: Our products conform to NEMA tests as indicated, however, some severe washdown
applications can exceed these NEMA test specifications. If you have questions about a specific
application, contact Eaton’s Cutler-Hammer Sensor Applications Department at 1-800-426-9184.
0.5A continuous
1A continuous
0.6A continuous
E51SCN Sensor Body only: NEMA 4, 4X and 13
Division II — GRPS ABCD
Division II — GRPS F and G
Division 2
Photoelectric Sensors
August 2007
Approximate Dimensions in mm [Inches]
tandard Sensor Sensor with Logic Module
For more information visit: www.eaton.com PG08301004E
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