Omron D4E-1A20N, D4E-2A21N, D4E-2A20N, D4E-1A21N, D4E-1B20N Datasheet

Small Sealed Switch D4E-@NF-31

Limit

Switches

Small Sealed Switch

D4E-@N

Slim and Compact Switch with Better Seal
and Ensuring Longer Service Life than D4E

• Flat springs with an improved lever ratio of the built-in switch en­sure smooth snap action and long life expectancy.

• Protection cover protects the built-in switch from dust and oil.
Plunger incorporates a tough seal cap that lasts for a long time.

• One touch connector eliminates need for tedious wiring opera­tions and reduces downtime for wiring and maintenance (mod­els with standard, easy-to-use screw terminals are also
available).

• Minute load model with gold cladding is optimal for electronic
control.

• Molded terminal types as well as molded terminal types with op­erating indicator lamps are available for screw terminal systems.

• No difference in mounting pitch and characteristics between
D4E-@N and D4E models.

Model Number Structure

■ Model Number Legend

1. Rated Current

1: 5 A at 125 VAC

(1 A at 125 VAC/30 VDC for model with a connector)

2: 0.1 A at 125 VAC

(0.1 A at 125 VAC/30 VDC for model with a connector)

2. Actuator

A: Roller plunger
B: Crossroller plunger
C: Plunger
D: Sealed roller plunger
E: Sealed crossroller plunger
F: Sealed plunger
G: Roller lever
H: One-way action roller lever

3. Terminals

00: AC connector
10: DC connector
20: Screw terminals without a cable
21: Screw terminals with a cable (right-hand)
22: Screw terminals with a cable (left-hand)
23: Molded terminals with a cable (right-hand)
24: Molded terminals with a cable (left-hand)

(Cable is S-FLEX VCTF 3 m)

4. Operation Indicator

L: Neon lamp (250 VAC)
L1: LED (12 VDC)
L2: LED (24 VDC)
L3: LED (48 VDC)

Note: 1. Only the molded terminal models can be equipped with an

operation indicator.

2. Desired Switches may not be manufactured depending on

the combination between molds and indicators. Contact our
sales representative for further information.

1 2 3 4

D4E-@@@@@N

F-32 Small Sealed Switch D4E-@N

Ordering Information

■ List of Models

Note: 1. When ordering, specify the current type by replacing the blank box of the model number with 0 for AC connector or 1 for DC connector.

2. Approved by UL and CSA.

3. For the plunger and lever actuator models, the NC and NO terminal indicators are reversed.

4. Cold tolerance specifications are available for actuator models with an A, B, C, G, or H in the model number. When ordering, add C to

the model number.
For example: D4E-1A20N → D4E-1A20N-C

Accessories (Order Separately)

Plug

Actuator

One-touch connector type Screw terminal type
General-

purpose

Micro load General-

purpose without

cable

Micro load

without cable

General-

purpose with

cable

Micro load with

cable

D4E-1A@0N D4E-2A@0N D4E-1A20N (see

note 2)

D4E-2A20N D4E-1A21N D4E-2A21N

D4E-1B@0N D4E-2B@0N D4E-1B20N (see

note 2)

D4E-2B20N D4E-1B21N D4E-2B21N

D4E-1C@0N D4E-2C@0N D4E-1C20N (see

note 2)

D4E-2C20N D4E-1C21N D4E-2C21N

D4E-1D@0N D4E-2D@0N D4E-1D20N (see

note 2)

D4E-2D20N D4E-1D21N D4E-2D21N

D4E-1E@0N D4E-2E@0N D4E-1E20N (see

note 2)

D4E-2E20N D4E-1E21N D4E-2E21N

D4E-1F@0N D4E-2F@0N D4E-1F20N (see

note 2)

D4E-2F20N D4E-1F21N D4E-2F21N

D4E-1G@0N D4E-2G@0N D4E-1G20N (see

note 2)

D4E-2G20N D4E-1G21N D4E-2G21N

D4E-1H@0N D4E-2H@0N D4E-1H20N (see

note 2)

D4E-2H20N D4E-1H21N D4E-2H21N

Roller plunger

Crossroller
plunger

Plunger

Sealed roller plunger

Sealed crossroller
plunger

Sealed plunger

Roller lever

One-way action
roller lever

Model Current Type No. of conductors Cable length Applicable models

XS2F-A421-D90-A AC Straight 4 2 m D4E-@@00N
XS2F-A421-G90-A 5 m
XS2F-D421-D80A DC 2 m D4E-@@10N
XS2F-D421-G80-A 5 m

Small Sealed Switch D4E-@NF-33

Limit

Switches

Specifications

■ Approved Standards

■ Approved Standard Ratings

UL, CSA

A300

TÜV (EN60947-5-1)

Note: 1. @: Actuator variation of item II

2. AC-14 0.5 A/125 VAC means as follows:

Applicable category: AC-14
Rated operating current (I

e

): 0.5 A

Rated operating voltage (U

e

): 125 VAC

Agency Standard File No.

UL UL508 E76675
CSA CSA C22.2 No. 14 LR45746
TÜV Rheinland EN60947-5-1 R9551015

Voltage Carry current Current Volt-amperes

Make Break Make Break

120 V 10 A 60 A 6 A 7,200 VA 720 VA
240 V 30 A 3 A

Model Applicable category and ratings Thermal

current (I

the

)

Indicator

I II III IV

1 @ 00 AC-14 0.5 A/125 VAC 5 A --­1 @ 10 DC-12 0.5 A/30 VDC 5 A --­1 @ 20, 21, 22 AC-15 2A/250 VAC

DC-12 2A/48 VDC

5 A ---

1 @ 23, 24 L AC-15 2A/250 VAC 5 A Neon lamp
1 @ 23, 24 L1 DC-12 2A/12 VDC 5 A LED
1 @ 23, 24 L2 DC-12 2A/24 VDC 5 A LED
1 @ 23, 24 L3 DC-12 2A/48 VDC 5 A LED
2 @ 00 AC-14 0.1A/125 VAC 0.5 A --­2 @ 10 DC-12 0.1A/30 VDC 0.5 A --­2 @ 20, 21, 22 AC-14 0.1A/125 VAC

DC-12 0.1A/48 VDC

0.5 A ---

2 @ 23, 24 L AC-14 0.1A/125 VAC 0.5 A Neon lamp
2 @ 23, 24 L1 DC-12 0.1A/12 VDC 0.5 A LED
2 @ 23, 24 L2 DC-12 0.1A/24 VDC 0.5 A LED
2 @ 23, 24 L3 DC-12 0.1A/48 VDC 0.5 A LED

I II III IV

D4E-

1 G 23 L N

F-34 Small Sealed Switch D4E-@N

■ Ratings

Note: 1. The above current ratings are for a standard current and the values in parentheses are for models with a connector.

2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).

3. Lamp load has an inrush current of 10 times the steady-state current.

4. Motor load has an inrush current of 6 times the steady-state current.

■ Characteristics

Note: 1. The above values are initial values.

2. The above ratings may vary depending on the model. Contact your OMRON representative for further details.

3. Durability values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%. Contact your

OMRON sales representative for more detailed information on other operating environments.

Rated voltage General-purpose Micro load

Non-inductive load Inductive load Non-inductive load

Resistive load Lamp load Inductive load Motor load Resistive load

NC NO NC NO NC NO NC NO NC NO

125 VAC 5 (1) A 1.5 (1) A 3 (1) A 2 (1) A 1 (1) A 0.1 A
250 VAC 5 (1) A 1.5 (1) A 3 (1) A 1 A 0.5 A --­8 VDC 5 (1) A --- 1.5 (1) A --- 0.1 A
14 VDC 5 (1) A --- 1.5 (1) A --- 0.1 A
30 VDC 5 (1) A --- 1.5 (1) A --- 0.1 A
125 VDC 0.5 A --- 0.05 A --- --­250 VDC 0.25 A --- 0.03 A --- ---

Inrush current NC 10 A max.

NO 10 A max.

Degree of protection IP67
Durability (see note 3) Mechanical: 10,000,000 operations min.

Electrical: 500,000 operations min. (5 A at 250 VAC, resistive load)

5,000,000 operations min. (10 mA at 24 VDC, resistive load)

Operating speed 0.1 mm to 0.5 m/sec
Operating frequency Mechanical: 120 operations/min

Electrical: 30 operations/min

Rated frequency 50/60 Hz
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 15 mΩ max. (initial value)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity

1,500 VAC, 50/60 Hz for 1 min/Uimp at 2.5 kV (EN60947-5-1) between current-carrying metal parts
and ground, and between each terminal and non-current-carrying metal part

Rated insulation voltage (Ui) 250 VAC
Switching overvoltage 1,000 VAC max. (EN60947-5-1)
Pollution degree

(operating environment)

3 (EN60947-5-1)

Short-circuit protective device (SCPD) 10 A fuse (type gG or gI, IEC269 approved)
Conditional short-circuit current 100 A (EN60947-5-1)
Conventional enclosed thermal current

(I

the

)

5 A (EN60947-5-1)

Protection against electric shock Class II (grounding not required with double insulation)
Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance

Destruction: 1,000 m/s

2

min.

Malfunction: 300 m/s

2

min.

Ambient temperature Operating: –10°C to 80°C (with no icing)
Ambient humidity Operating: 95% max.
Weight Approx. 86 g (in case of roller plunger)

Small Sealed Switch D4E-@NF-35

Limit

Switches

■ Operating Characteristics

Note: The values given in parentheses are reference values.

■ Contact Form

Engineering Data

Electrical Durability (cosφ=1)

Model D4E-1A@@N

D4E-2A@@N

D4E-1B@@N
D4E-2B@@N

D4E-1C@@N
D4E-2C@@N

D4E-1D@@N
D4E-2D@@N

D4E-1E@@N
D4E-2E@@N

OF max. 11.77 N 11.77 N 11.77 N 11.77 N 11.77 N
RF min. 4.90 N 4.90 N 4.90 N 4.90 N 4.90 N
PT max. 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5 mm
OT min. 3 mm 3 mm 3 mm 3 mm 3 mm
MD (reference

value)

(0.1 mm) (0.1 mm) (0.1 mm) (0.1 mm) (0.1 mm)

OP 31.4±0.8 mm 31.4±0.8 mm 25.4±0.8 mm 41.3±0.8 mm 41.3±0.8 mm

Model D4E-1F@@N

D4E-2F@@N

D4E-1G@@N
D4E-2G@@N

D4E-1H@@N
D4E-2H@@N

OF max. 11.77 N 3.92 N 3.92 N
RF min. 4.90 N 0.78 N 0.78 N
PT max. 1.5 mm 2 mm 2 mm
OT min. 3 mm 4 mm 4 mm
MD (reference

value)

(0.1 mm) (0.3 mm) (0.3 mm)

OP 30±0.8 mm 23.1±0.8 mm 34.3±0.8 mm

AC

DC

COM NO NC COM NC NO

COM

NO

NC

2

3

4

1

COM

2

3

4

1

NO

NC

(COM) 1

2 (NC)

4 (NO)

(COM) 1

2 (NC)

4 (NO)

Screw Terminal Type

Lever

Connector Type

Plunger

EN60947-5-1EN60947-5-1

250 VAC

Durability (x10

4

operations)

Switching current (A

)

Operating temperature: 5°C to 30°C
Operating humidity: 40% to 70%.

Operating frequency: 30 operations/min
(cosφ= 1)

F-36 Small Sealed Switch D4E-@N

Nomenclature

Bearing

Built-in Switch

Die-cast Case

Movable Plunger

Rubber Cap (NBR)

Seal Packing (NBR)

Terminal Protection Cover

Screw Terminal

Wiring Ease

Rubber cap provides a tight seal and
ensures a long service life and
smooth reset at low temperatures.

Seal packing withstands a pressure of
186 kPa (D4E's seal packing with­stands a pressure of 98 kPa).

D4E-@N has a wide wiring space of
10 mm horizontally (D4E has a space
of 7.5 mm horizontally).

Screw terminal incorporates a M3
screw with a toothed washer.

The actuator strength has been increased to 4,903 N
(D4E: 294 N) in order to prevent faulty resetting of
the bearing, which may occur when the roller is
pressed with excessive force.

Switch cover ensures high insulation between the
terminals and die-cast. Double insulation means that
grounding is unnecessary. Meets UL, CSA, and EN
standards.
Prevents the movable piece from being pushed in
too far, and thereby contributes to a longer service
life.

Zinc die-cast case is anti-corrosive and tough.

Wired made easier using (D4CC-type)
plug-in connector.

Small Sealed Switch D4E-@NF-37

Limit

Switches

Dimensions

Note: 1. All units are in millimeters unless otherwise indicated.

2. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

3. A 3-m lead wire cable equivalent to the 3-conductor VCTF S-FLEX cable (0.75 mm

2

, 7 mm in dia.) is provided.

4. A 5.8- to 7.6-dia. cable can be applied to the seal rubber for the lead wire outlet.

(46)

3.5

6.5

0.5

10

8

28.4

21.5

4.5

(57)

18

PT

OP

33±0.15

M14 x 1

10

4.2

+0.2

0

PT

OP

M12 x 1

M14 x 1

33±0.15

(46)

3.5 6.5

0.5

10

8

28.4

21.5

4.5

(60)

18

10

4.2

+0.2

0

(46)

3.5

6.5

0.5

10

8

28.4

21.5

4.5

(60)

18

PT

OP

33±0.15

M14 x 1

M12 x 1

10

4.2

+0.2

0

M14 x 1

18

33±0.15

PT

OP

3.5

10

8

4.5

21.5

28.4

10

(46)

6.5

0.5

(57)

4.2

+0.2

0

4.7 holes

16 dia.

4.7 holes

Roller Plunger

4.7 holes

16 dia.

4.7 hole

Roller Plunger

Cross Roller Plunger

Cross Roller Plunger

D4E-1A00N
D4E-1A10N
D4E-2A00N
D4E-2A10N

D4E-1A20N (See note 4.)
D4E-2A20N (See note 4.)
D4E-1A21N (See note 3.)
D4E-2A21N (See note 3.)

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

11 dia. x 4.7 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

11 dia. x 4.7 stainless
sintered alloy roller

D4E-1B00N
D4E-1B10N
D4E-2B00N
D4E-2B10N

D4E-1B20N
D4E-2B20N
D4E-1B21N
D4E-2B21N

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

11 dia. x 4.7 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

11 dia. x 4.7 stainless
sintered alloy roller

F-38 Small Sealed Switch D4E-@N

18

3.5

6.5

0.5

OP

PT

33±0.15

28.4

(57)

21.5

4.5

(46)

10

4.2

+0.2

0

(46)

3.5

6.5

21.5

4.5

28.4

(60)

18

OP

PT

33±0.15

10

M12 x 1

0.5

4.2

+0.2

0

(46)

3.5

10

8

21.5

28.4

4.5

6.5

33±0.15

(57)

PT

OP

M14 x 1

18

10

4.2

+0.2

0

4.2

+0.2

0

M14 x 1

M12 x 1

PT

33±0.15

21.5

28.4

OP

4.5

8

10

(60)

10

3.5

(46)

6.5

0.5

18

16 dia.

Sealed rubber

4.7 holes

4.7 holes

Sealed rubber

4.2

+0.2

dia.

0

0.5 long hole center

4.7 holes

4.7 hole

Plunger

Plunger

Sealed Roller Plunger

Sealed Roller Plunger

D4E-1C00N
D4E-1C10N
D4E-2C00N
D4E-2C10N

D4E-1C20N (See note 4.)
D4E-2C20N (See note 4.)
D4E-1C21N (See note 3.)
D4E-2C21N (See note 3.)

D4E-1D00N
D4E-1D10N
D4E-2D00N
D4E-2D10N

D4E-1D20N (See note 4.)
D4E-2D20N (See note 4.)
D4E-1D21N (See note 3.)
D4E-2D21N (See note 3.)

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

7.8 dia. stainless
steel plunger

0

4.2

+0.2

dia.

holes

Two, panel mounting nut

2.5 mm thickness, 17 mm
width across flats

7.8 dia. stainless
steel plunger

11 dia. x 4.7 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

11 dia. x 4.7 stainless
sintered alloy roller

Small Sealed Switch D4E-@NF-39

Limit

Switches

(46)

3.5

6.5

0.5

21.5

4.5

28.4

(57)

18

10

PT

4.2

+0.2

0

OP

(46)

3.5

6.5

21.5

4.5

28.4

(60)

18

OP

PT

10

M12 x 1

0.5

4.2

+0.2

0

(46)

3.5

6.5

0.5

21.5

4.5

28.4

(57)

18

OP

PT

10

4.2

+0.2

0

33±0.15

(46)

3.5

6.5

21.5

4.5

28.4

(60)

18

OP

PT

33±0.15

10

M12 x 1

0.5

4.2

+0.2

0

33±0.15

33±0.15

4.7 holes

Sealed rubber

4.7 holes

Sealed rubber

4.7 holes

Sealed rubber

4.7 holes

Sealed rubber

Sealed Cross Roller Plunger

Sealed Cross Roller Plunger

Sealed Plunger

Sealed Plunger

D4E-1E00N
D4E-1E10N
D4E-2E00N
D4E-2E10N

D4E-1E20N (See note 4.)
D4E-2E20N (See note 4.)
D4E-1E21N (See note 3.)
D4E-2E21N (See note 3.)

D4E-1F00N
D4E-1F10N
D4E-2F00N
D4E-2F10N

D4E-1F20N (See note 4.)
D4E-2F20N (See note 4.)
D4E-1F21N (See note 3.)
D4E-2F21N (See note 3.)

0

4.2

+0.2

dia.

holes

11 dia. x 4.7 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

11 dia. x 4.7 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

7.8 dia. stainless
steel plunger

0

4.2

+0.2

dia.

holes

7.8 dia. stainless
steel plunger

F-40 Small Sealed Switch D4E-@N

6.5

(57)

18

15

21.5

28.4

0.5

28R

PT

OP

(46)

4.2

+0.2

0

3.5

33±0.15

3.5

6.5

(60)

18

15

21.5

28.4

28R

0.5

(46)

PT

OP

M12 x 1

33±0.15

4.2

+0.2

0

(46)

3.5

15

21.5

28.4

6.5

(60)

18

PT

OP

0.5

23R

33±0.15

M12 x 1

3.5 6.5

(57)

18

15

21.5

28.4

23R

0.5

PT

OP

33±0.15

(46)

4.2

+0.2

0

4.2

+0.2

0

19.4

19.4

19.4

19.4

12

12

12

16 dia.

4.7 holes

4.7 holes

Roller Lever

Roller Lever

4.7 holes

16 dia.

4.7 holes

One-way Action Roller Lever

One-way Action Roller Lever

Operating direction

Operating direction

D4E-1G00N
D4E-1G10N
D4E-2G00N
D4E-2G10N

D4E-1G20N (See note 4.)
D4E-2G20N (See note 4.)
D4E-1G21N (See note 3.)
D4E-2G21N (See note 3.)

D4E-1H00N
D4E-1H10N
D4E-2H00N
D4E-2H10N

D4E-1H20N (See note 4.)
D4E-2H20N (See note 4.)
D4E-1H21N (See note 3.)
D4E-2H21N (See note 3.)

0

4.2

+0.2

dia.

holes

9.5 dia. x 4.8 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

9.5 dia. x 4.8 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

9.5 dia. x 4.8 stainless
sintered alloy roller

0

4.2

+0.2

dia.

holes

9.5 dia. x 4.8 stainless
sintered alloy roller

Small Sealed Switch D4E-@NF-41

Limit

Switches

Molded Terminal Models

■ Molded Terminal Models

The molded-terminal model is available with right-hand, left-hand and underside leads and is recommended for use where the Switch is exposed
to dust, oil or moisture. It can be used like a screw-terminal model (with a cable), and the dimensions and operating characteristics are the same
as for standard models.

Example:

Standard type: D4E-1A20N
Location of lead output: Right-hand → D4E-1A23N

Suffix by Location of Lead Outlet

Lead Supplies

Comparison between Old and New Mold Terminal Models

The D4E-N and D4E are different from each other in terminal specifi­cations.

■ Operation of Indicator-equipped Models

The molded terminal model may be equipped with an operation indicator (neon lamp or LED) upon request to facilitate maintenance and inspection.
The operation indicator is designed to illuminate when the Switch is not operating. (Because of the molded terminal model, any change to the

Switch wiring cannot be made.)

AC Operation

A neon lamp indicator is provided.
The operating voltage is 90 to 250 VAC.

There is no difference in operating characteristics between D4E AC
Models and corresponding D4E Standard Models.

There is no difference in dimensions between D4E AC Models and
D4E Standard Models.

Example:

Basic type: D4E-1A23N
When placing your order for the molded terminal model with an neon
lamp operation indicator, specify the model number as D4E-1A23LN.

Internal Circuit

(2) (1)

Location of lead output Suffix for pre-wired terminal

COM, NC, NO

(1) Right-hand D4E-@@23N
(2) Left-hand D4E-@@24N

Leads Nominal

cross-sectional area

Finished outside diameter Terminal connections Standard length

V.C.T.F. S-FLEX
(vinyl cabtire coat)

0.75 mm

2

3 conductors Black: COM

White: NO
Red: NC

3 m

7 mm dia.

Location of lead output D4E-N D4E

Right-hand D4E-@@23N D4E-@@21
Left-hand D4E-@@24N D4E-@@23
Underside --- D4E-@@22

Neon lamp

Terminal protection cover
(transparent)

Power supply

Built-in switch

Load

Neon lamp R = 240 k

Ω

F-42 Small Sealed Switch D4E-@N

DC Operation

LED indicator is provided.
As a rectifier stack is incorporated, into the unit and no directionality
exists for connection of + and –, this type can also be operated on
AC.

Voltage ratings of LED indicators are as shown in the table below.

Internal Circuit

Note: *An external 24VDC power supply can be used, eg. OMRON

S8VS.

Example:

When ordering a D4E DC Model, add the following suffix to the
model number.

Basic Model: The model number of the D4E-1A23N with a built-in

12-V LED indicator is D4E-1A23L1N.

Typ e Voltag e

rating

Lamp current Internal

resistance

L1 12 V Approx. 2.4 mA 4.3 kΩ
L2 24 V Approx. 1.2 mA 18 kΩ
L3 48 V Approx. 2.1 mA 22 kΩ

Power supply*

Built-in switch

Load

Resistance

LED

Small Sealed Switch D4E-@NF-43

Limit

Switches

Precautions

Refer to the Technical Information for Limit Switches (Cat. No. C121).

■ Correct Use

Do not solder the screw terminals.
Sealing materials may deteriorate when used outdoors or when

exposed to cutting oil, solvents, or chemicals. Check this on actual
equipment and, if deterioration is foreseen, consult your OMRON
representative in advance.

If the one-touch connector is to be mounted onto the switch body,
lightly push up the fitting so that the switch body can then be inserted
into the clamp.

Be sure that the clamp is inserted to the full depth, because the
Switch will not function properly if one of the clamps is improperly
inserted.

If the clamp is properly inserted up to the full depth, it will not slide
out easily. Be sure to carefully confirm all the above items.

Be sure to connect a fuse with a breaking current 1.5 to 2 times the
rated current to the Limit Switch in series in order to protect the Limit
Switch from damage due to short-circuiting.
When using the Limit under the EN ratings, use a gI or gG 10-A fuse
that conforms to IEC260.

Mounting

Secure the Switch with two M4 screws and washers. The tightening
torque applied to each terminal must be 1.18 to 1.37 N·m. Tighten
the screws to the specified torque. An excessive tightening torque
may damage the Switch and cause a malfunction.

Mounting Holes

When mounting the panel mount-type Switch with screws on a side
surface, remove the hexagonal nuts from the actuator.

When mounting the panel mount type on a panel, tighten the hexag­onal nuts of the actuator to a torque less than 7.85 N·m.

Mounting Hole

Operating method, shape of cam or dog, operating frequency, and
the overtravel (OT) have significant effect on the service life and pre­cision of the Limit Switch. Make sure that the shape of the cam is
smooth enough.

Check that OT has a sufficient margin. The actual OT should be
rated OT x 0.7 to 1.

Do not change the operating position by remodeling the actuator.

Wiring

When wiring screw terminals, M3-size round solderless terminals
with an insulation tube is recommended. The conductor size should
be 0.75 mm

2

and cable diameter should be 7 mm.

Refer to the following when wiring.

dz dia.: 3.2

D dia.: 1.9
B: 5.2
L: 16.4
F: 5.8
l: 8.0 (mm)

Insert the switch
body

Lightly push up the filling on the
left and right side alternately.

Switch body

Clamp fitting

Confirm
visually

33±0.15

Two, 4.3 dia. or M4 hole

14.5

±0.2 dia.

D dia.

d

z dia.

D4E-N

Round solderless terminal

Wiring Method

F-44 Small Sealed Switch D4E-@N

Tightening Torque

A loose screw may result in a malfunction. Be sure to tighten each
screw to the proper tightening torque as shown below.

No. Type Torque

1 Terminal screw (M3) 0.24 to 0.44 N·m
2 Switch mounting screw (M4) 1.18 to 1.37 N·m

2

1

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. C028-E1-05