Cut Sheet

V8-T3-98 Volume 8—Sensing Solutions CA08100010E—July 2015 www.eaton.com
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3.17
Inductive Proximity Sensors
E51 Limit Switch Style, Factory Sealed 6P+ Sensors
Product Selection
Unitized Sensors
Factory Sealed 6P+ Assembled Sensors
Compatible Connector Cables
Standard Cables
6
Notes
1
Switch bases feature 8 ft of SOOW-A cable. Other connection options are available:
2
Sensor head is hard wired to sensor body and cannot be detached. Side sensing head can be unfastened
and rotated to any of four positions.
3
Sensor heads feature color coded target symbols: Yellow for standard frequency; Green for alternate frequency.
4
See listing of compatible connector cables above.
5
For 12 ft.
6
For a full selection of connector cables, see Tab 10, section 10.1.
Two-Wire Sensors Four-Wire Sensors
Operating voltage 20–264 Vac/dc 120 Vac 10–30 Vdc
NO and NC
complementary
NO and NC complementary
Sensing
Range Shielding
Output NO NC PNP NPN
Frequency
3
Assembled Sensor with Head, Sensor Body and Receptacle
Catalog Number
Top Sensing
0.51 in (13 mm) Shielded Standard E51ALT16PU E51BLT16PU E51CLT16PU E51PLT16PU E51NLT16PU
Alternate E51ALT26PU E51BLT26PU E51CLT26PU E51PLT26PU E51NLT26PU
0.94 in (24 mm) Unshielded Standard E51ALT56PU E51BLT56PU E51CLT56PU E51PLT56PU E51NLT56PU
Alternate E51ALT66PU E51BLT66PU E51CLT66PU E51PLT66PU E51NLT66PU
Side Sensing
0.51 in (13 mm) Shielded Standard E51ALS16PU E51BLS16PU E51CLS16PU E51PLS16PU E51NLS16PU
Alternate E51ALS26PU E51BLS26PU E51CLS26PU E51PLS26PU E51NLS26PU
0.94 in (24 mm) Unshielded Standard E51ALS56PU E51BLS56PU E51CLS56PU E51PLS56PU E51NLS56PU
Alternate E51ALS66PU E51BLS66PU E51CLS66PU E51PLS66PU E51NLS66PU
Current Rating
at 600 V
Voltage
Style
Number
of Pins Gauge Length
Pin Configuration/Wire Colors
(Face View Female Shown) Catalog Number
Mini-Style, Straight Female
13 A — 3-pin 16 AWG 6 ft (2m) CSMS3F3CY1602
10 A — 4-pin 16 AWG 6 ft (2m) CSMS4A4CY1602
8 A AC/DC 5-pin,
5-wire
16 AWG 6 ft (2m) CSMS5A5CY1602
Connection Option
4
Instructions Example
Mini-connector mounted on 3 ft (0.9m) pigtail cable
(3-pin for two-wire sensors; 5-pin for four-wire sensors)
Add the letter T before U E51ALT16PTU
Mini-connector mounted to switch base
(3-pin for two-wire sensors; 5-pin for four-wire sensors)
Add the letter C before U E51ALT16PCU
Cable longer than 8 ft, add required length in 1 ft increments
to listed catalog number—20 ft maximum
Add length in feet to end of
catalog number
E51ALT16PU12
5
Top Sensing
2
Sensor Heads
2
Side Sensing
2
Assembled Sensor
with 8 ft Cable
1
Mini-Style
Straight Female
1-Green
2-Black
3-White
1-Black
2-Blue
3-Brown
4-White
1-Black
2-Blue
3-Orange
4-Brown
5-White