Cutler Hammer, Div of Eaton Corp E51 Limit Switch Style Catalog Page
Choose from Top
or Side Sensing
Head Can Be
Mounted in
Any of Four
Positions
Viton
Gasket Seals
Throughout
Rugged Zinc
Die Cast
Housing
Conduit, Cable
and Connector
Wiring Options
A Variety of
Receptacles
Meet Your
Wiring Needs
Factory
Assembled
Models with
Tamper-Proof
Screws for a
Lasting Seal
Sensor Bodies
Available for
AC and DC
Operation
August 2007
E51 Modular Limit Switch Style
Inductive Proximity Sensors
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . 1
Model Selection,
Assembled Sensors . . . . . . . . . . . . 2
Model Selection,
Sensor Heads . . . . . . . . . . . . . . . . . 3
Model Selection,
Sensor Bodies . . . . . . . . . . . . . . . . . 4
Model Selection,
Logic Modules. . . . . . . . . . . . . . . . . 4
Model Selection,
Receptacles . . . . . . . . . . . . . . . . . . . 5
Model Selection, Compatible
Connector Cables . . . . . . . . . . . . . . 5
Wiring Diagrams . . . . . . . . . . . . . . . . 6
Model Selection,
Accessories . . . . . . . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . 8
Dimensions . . . . . . . . . . . . . . . . . . . . 8
Inductive Proximity Sensors
E51 Limit Switch Style, Modular
PG.05D.11.T.E
This Rugged Sensor Family Features Modular Components
for Versatile Sensing
1
The Cutler-Hammer
Proximity Sensor Family from
electrical business combines high
performance with a familiar limit
switch style housing. Modular, plugin components provide application
flexibility, ease of maintenance, less
downtime and reduced inventory.
Choose from 2-wire sensors with
AC/DC operation, or 4-wire sensors
in either AC or DC styles. Connection
options include terminal, miniconnector or various lengths of cable.
Choose from standard sensors that
detect all types of metallic targets.
The next page provides more detail
on these sensors.
Approvals
UL Listed
■
■
CSA Certified
(where shown)
Unless otherwise noted, the
products contained in this
document are not designed
or intended for use in human
safety applications.
®
E51 Inductive
Eaton’s
Product Features
■
Rugged construction is ideal for industrial environments
®
Viton
■
■
■
■
■
■
■
■
■
gaskets ensure a positive seal and high resistance to industry
chemicals
Direct replacement for worn out limit switches
Sensor heads and bodies feature captive screws to eliminate loss
All sensor heads include a selector switch to program output function to
either N.O. or N.C.
Sensor bodies feature bifurcated engagement prongs for a reliable
connection when plugging into receptacle stabs
Engagement key between sensor body and receptacle prevents improper
assembly
Sensors accommodate both U.S. and DIN mounting dimensions
Wiring terminals feature captive pressure plate saddles for #18 to #12 AWG
wire. A green screw identified ground terminal is also included
Logic modules are available to provide additional control functions
®
Viton
is a registered trademark of Dupont Dow
Elastomers.
PG.05D.11.T.E For more information visit:
For Customer Service in the U.S. call 1-877-ETN CARE (386-2273) ,
in Canada call 1-800-268-3578 .
For Application Assistance in the U.S. and Canada
call 1-800-426-9184 .
www.eaton.com
Inductive Proximity Sensors
2
E51 Limit Switch Style, Modular
August 2007
Standard Sensors
Standard E51 sensors feature long
sensing ranges and a choice of top
or side sensing heads. Alternate
frequency units eliminate
interference when mounted close to
standard frequency units. Order
Model Selection — Assembled Sensors — Standard
Assembled
Sensor
Sensor Heads
Standard Sensing
Top Sensing 0.51 inches
Side Sensing 0.51 inches
All sensor heads feature a programmable output selector switch for N.O. or N.C. operation. Operation is as follows:
For This
Output Type:
N.O. Target Present Target Absent
N.C. Target Absent Target Present
Logic modules must be ordered separately, see Page 4 . These sensor bodies are rated NEMA 4, 4X and 13.
Fast turn product with typical one business day lead-time to shipment.
Receptacles feature terminal wiring with a 1/2” NPT thread at the conduit entrance. Other connection options are available:
Connection Option Catalog
20 mm thread at the conduit entrance
Mini-Connector termination with epoxy filled receptacle,
Page 5 for additional receptacle options
see
Pre-wired cable with epoxy filled receptacle 8 feet long
Stocked product, typical order quantities guaranteed in stock.
Sensing
Range
(13 mm)
0.94 inches
(24 mm)
(13 mm)
0.94 inches
(24 mm)
Set Selector Position:
“TARGET” “NO TARGET”
Sensor Body and
Receptacle
Shielding Frequency Catalog Number
Shielded Standard E51DT1 E51ALT1 E51CLT1 E51CNT1 E51PLT1 E51NLT1
Alternate E51DT2 E51ALT2 E51CLT2 E51CNT2 E51PLT2 E51NLT2
Unshielded Standard E51DT5 E51ALT5 E51CLT5 E51CNT5 E51PLT5 E51NLT5
Alternate E51DT6 E51ALT6 E51CLT6 E51CNT6 E51PLT6 E51NLT6
Shielded Standard E51DS1 E51ALS1 E51CLS1 E51CNS1 E51PLS1 E51NLS1
Alternate E51DS2 E51ALS2 E51CLS2 E51CNS2 E51PLS2 E51NLS2
Unshielded Standard E51DS5 E51ALS5 E51CLS5 E51CNS5 E51PLS5 E51NLS5
Alternate E51DS6 E51ALS6 E51CLS6 E51CNS6 E51PLS6 E51NLS6
sensors in component form, as
assembled plug-in units, or in a
sealed version where the sensor
body is factory assembled to an
epoxy filled receptacle with tamperproof screws to ensure a lasting
seal.
(with Terminal Wiring)
2-Wire Sensors 4-Wire Sensors
Operating
Voltage
Output N.O. or N.C.
Sensor Body
Receptacle
Sensor Head Only
20 – 264V
AC/DC
E51SAL E51SCL E51SCN
E51RA E51RC E51RCB E51RN E51RN
Catalog Number
Assembled Sensors with Head, Sensor Body and Receptacle
2-wire, 3-pin connector
4-wire, 5-pin connector
12 feet long
20 feet long
120V AC 10 – 30V DC
N.O. and N.C. Complementary N.O. and N.C. Complementary
Accepts Logic
Modules
Number
— 20 E51ALT120
CSMS3F3CY1602 P3 E51ALT1P3
CSMS5D5CY1602 P5 E51CLT1P5
— S E51ALT1S
— S12 E51ALT1S12
— S20 E51ALT1S20
E51SPL
PNP
Suffix Example
E51SNL
NPN
For more information visit: www.eaton.com
PG.05D.11.T.E
Inductive Proximity Sensors
E51 Limit Switch Style, Modular
August 2007
Model Selection — Assembled Sensors — Standard (with Epoxy Filled Receptacles and Pre-wired Cables)
Assembled Sensor
Sensor Base Type with
8 Foot Cable
Operating
Voltage
Output N.O. or N.C.
Sensor Heads
Sensing Range Shielding Frequency Catalog Number
Sensor Head Only
Standard Sensing (Sensor Body Is Attached to Receptacle with Tamper-Proof Screws)
Top Sensing 0.51 inches
(13 mm)
0.94 inches
(24 mm)
Side Sensing 0.51 inches
(13 mm)
0.94 inches
(24 mm)
All sensor heads feature a programmable output selector switch for N.O. or N.C. operation. Operation is as follows:
For This
Output Type:
Set Selector Position:
“TARGET” “NO TARGET”
Shielded Standard E51DT1 E51ALT16P E51CLT16P E51PLT16P E51NLT16P
Alternate E51DT2 E51ALT26P E51CLT26P E51PLT26P E51NLT26P
Unshielded Standard E51DT5 E51ALT56P E51CLT56P E51PLT56P E51NLT56P
Alternate E51DT6 E51ALT66P E51CLT66P E51PLT66P E51NLT66P
Shielded Standard E51DS1 E51ALS16P E51CLS16P E51PLS16P E51NLS16P
Alternate E51DS2 E51ALS26P E51CLS26P E51PLS26P E51NLS26P
Unshielded Standard E51DS5 E51ALS56P E51CLS56P E51PLS56P E51NLS56P
Alternate E51DS6 E51ALS66P E51CLS66P E51PLS66P E51NLS66P
N.O. Target Present Target Absent
N.C. Target Absent Target Present
Switch bases feature 8 feet of SOOW-A cable. Other connection options are available:
Connection Option
Suffix Example
Mini-Connector mounted on 3 foot (900 mm) pigtail cable T E51ALT16PT
Mini-Connector mounted to switch base
Cable longer than 8 feet, add required length in 1 foot
C E51ALT16PC
(Length in feet) E51ALT16P12 for 12 feet
increments to listed Catalog Number — 20 foot maximum
See listing of compatible connector cables on Page 5 .
Fast turn product with typical one business day lead-time to shipment.
2-Wire Sensors 4-Wire Sensors
20 – 264V AC/DC 120V AC 10 – 30V DC
N.O. and N.C.
Complementary
Catalog Number
Assembled Sensors with Head and Sensor Base
3
N.O. and N.C. Complementary
PNP NPN
Model Selection — Sensor Heads
Sensing Range Shielding Frequency Target Material Catalog Number
Standard Sensing
Top Sensing 0.51 inches
(13 mm)
0.94 inches
(24 mm)
Side Sensing 0.51 inches
(13 mm)
0.94 inches
(24 mm)
All sensor heads feature a programmable output selector switch for N.O. or N.C. operation.
Operation is as follows:
For This
Output Type:
Set Selector Position:
“TARGET” “NO TARGET”
Shielded Standard All metals
Alternate All metals
Unshielded Standard All metals
Alternate All metals
Shielded Standard All metals
Alternate All metals
Unshielded Standard All metals
Alternate All metals
E51DT1
E51DT2
E51DT5
E51DT6
E51DS1
E51DS2
E51DS5
E51DS6
N.O. Target Present Target Absent
N.C. Target Absent Target Present
Fast turn product with typical one business day lead-time to shipment.
PG.05D.11.T.E For more information visit: www.eaton.com
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