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(3)  Keep the product away from oil or solvent. Oil or solvent make 

the marking on the product illegible and cause deterioration of 

some parts.

(4)  Do not use in an environment with corrosive gas.

(5)  The product may not operate normally in the vicinity of devices 

that generate strong radio waves or magnetic fields, such as 

RFID systems, proximity sensors, motors, inverters, and 

switch-mode power supplies. If the device is used in the 

vicinity of such devices, check the effect before use.

(6)  Installing the switch and the actuator on a metallic material 

may affect the operating distance. If installation on a metallic 

material is necessary, be sure to check the effect on the 

operating distance before use.

(7)  Tighten the screws with a specified torque.

(8)  Use the wires specified by OMRON to wire the product.

(Refer to Connection.)

(9)  Do not extend the cables in excess of the specification of this 

product. Carry out electrical connection according to the wiring 

examples shown in this document and verify the correct 

operation of the product.

(10) During installation, make sure that the safety door switch does 

not come in contact with the actuator due to rattling of the 

guard door. (The performance of the product may be degraded 

by a collision caused by opening or closing the guard door.)

(11) Do not pull or bend the cable excessively. A disconnection 

may cause a malfunction.

(12) Risk time remains unchanged by series connection. However, 

carry out electrical connection according to the wiring 

examples shown in this document.

(13) Be sure to inspect the product daily and every 6 months. 

Failure to do so may cause a system failure and serious injury.

(14) When determining the safety distance, take into account the 

delay of the output of the product caused by the response time. 

Failure to do so may cause the operator to reach the hazardous 

source before the machine is stopped, resulting in serious injury.

(15) Install the product so that the LED indicators of the safety 

door switch are as visible as possible. Misinterpreting the 

status of the safety door switch may result in danger.

(16) Do not use the product at an altitude of 2,000 m or higher.

(17) Do not connect a product different from this product in series 

with this product. Doing so may disturb waveforms of the 

input and output signals, leading to loss of the safety function.

(18) Do not use the product in the water or continuous water 

exposure environment. Doing so may cause water to leak into 

the product. (The degree of protection does not guarantee the 

protection under continuous water exposure environment.)

(19) Do not tamper the product with a replacement actuator. Store 

replacement actuators in a safe place where they cannot be 

easily reached.

(20) Build a safety system using the outputs of both Safety 

Outputs 1 and 2. Wiring with only one safety output may lead 

to loss of the safety function due to a single failure.

(21) Wiring should meet the requirements specified in Section 

9.4.3 of IEC 60204-1 to prevent malfunction due to ground 

faults in the safety output lines.

(22) Do not wire the product to an input of a safety controller in parallel. 

(23) Do not try to disassemble, repair, or modify the product. 

Doing so may cause loss of the safety function.

(24) Do not operate the product in an environment with flammable 

or explosive gas.

(25) After installation of the product, qualified personnel should verify 

to see that the installation, inspection, and maintenance are 

properly performed. The qualified personnel should be qualified 

and authorized to secure the safety on each phase of design, 

installation, running, maintenance and disposal of system.

(26) Auxiliary output is NOT a safety output. Do not use the 

Auxiliary output individually for any safety function. Such 

incorrect use causes loss of the safety function of the product 

and its relevant systems.

(27) Disconnect the product and the controller connected to the 

product from power supply when replacing the product. 

Failure to do so may cause unexpected operation of devices 

connected to the product.

(28) The safety function may not operate normally due to a 

malfunction of the wiring, setting, or switch, and the machine may 

continue to operate, which may result in personal injury. Make 

sure that the safety function works before starting operation.

(29) Do not use the product as a door stopper. (The performance 

of the product may be degraded due to a collision caused by 

opening and closing the guard door.)

(1)  Do not drop the product to the ground or expose to excessive 

vibration or mechanical shocks. Doing so may damage the 

product and cause failure.

(2)  Do not store or use the product under the following conditions. 

Doing so may damage the product and cause failure.

1) At ambient operating temperatures out of the range of -25 to 65°C

2) At ambient storage temperatures out of the range of -25 to 85°C

3) At relative humidity of 93%  or more

4) In direct sunlight

5) Under drastic temperature changes

6) In high humidity that causes condensation

Operating distance

The side allows for a maximum height misalignment (X) of safety 

door switch and actuator of ±8 mm (e.g. mounting tolerance or due 

to guard door sagging). The axial misalignment (Y) is max. ±18 mm.

Actuating curves 

The actuating curves represent the typical operating distance of 

the safety door switch during the approach of the actuator subject 

to the actuating direction.

The continuous signal of the yellow LED signals the actuator 

detection; the flashing of the yellow LED signals that the safety door 

switch is actuated in the different travel area.
Preferred actuation directions: from front or from side

In case of a lateral actuation, the operating distances are reduced 

by approx. 3 mm.

Recommended Adjustment

Align the safety door switch and actuator at a distance of 0.5 x 

assured operating distance (Sao).
The correct functionality of both safety channels must be checked 

by means of the connected safety controller.

The mounting holes provide for a mounting by means of M4 screws 

(max. tightening torque 0.8 N•m). The product can be mounted in any 

position. The minimum bend radius of the -025-type cable is 25 mm. 

The active areas of the safety door switch and the actuator have to 

face each other. The safety door switch must only be used within the 

assured operating distances ≤ Sao and ≥ Sar.

To avoid any interference inherent to this kind of system and any 

reduction of the operating distances, please observe the following 

guidelines: 

• See the figures below for the minimum distances between two safety 

door switches and other systems of the same frequency (125 kHz).

Sealing Kit (D41D-SK)

Contents: 4 flat plugs and 4 plugs with rim for high screw head

Purpose: Used to seal the mounting holes

Mounting Kit (D41D-MS)

Contents: 2 mounting plates and 4 ferrule plugs

Purpose (Mounting plate): Used to fix to a non-flat surface such as a 

profile.

Purpose (Ferrule plug): Used for applications with considerable 

changes in ambient temperature.

Note: 1. Lateral actuation only from the shown side of the safety door switch.

Note:1. If multiple safety door switches are involved in the same 

safety function, the PFH values of the individual 

components must be added.

For use in NFPA 79 Applications.

Adapters providing field wiring means are available from the 

manufacturer. Refer to manufacturer's information.

For use in Pollution Degree 2 Environment.

Safety classification information

High-Coded Safety Door Switch

5673883-0A

Thank you for purchasing Omron products. This 

product is a high-coded safety door switch. 

Please read and understand this document 

before using the products. Keep this document 

ready to use whenever needed. Only qualified 

person trained in professional electrical 

technique should handle the product. Please 

consult your Omron representative if you have 

any questions or comments. Make sure that 

information written in this document are 

delivered to the final user of the product.

Model D41D

Safety Precautions

Indicates a potentially 

hazardous situation which, if 

not avoided, will result in 

minor or moderate injury, or 

may result in serious injury or 

death. Additionally there may 

be significant property 

damage.

Alert Statements

Precautions for Correct Use

Detection Range (Typical Data)

EN

Instruction Manual

EU Declaration of Conformity

Standards

OMRON declares that the D41D is in conformity with the 

requirements of the following EU Directives:

Machinery Directive 2006/42/EC

RE Directive 2014/53/EU

The D41D High-Coded Safety Door Switch is designed for 

safety circuits and is used to monitor the position of movable 

guards.

D41D is designed and manufactured in accordance with the 

following standards:

• EN ISO 13849-1: 2015 PL e Category 4

• EN 60947-5-3

• EN 300 330

• EN ISO 14119

• IEC 61508 

• EN 62061

© OMRON Corporation  2021  All Rights Reserved.

WARNING

WARNING

(1) Disconnect the product from power supply 

when wiring the product. Failure to do so may 

cause unexpected operation of devices 

connected to the product.

(2) Wire the input and output terminals correctly 

and verify the correct operation of the product 

before using the system in which the product 

is incorporated. Incorrect wiring may lead to 

loss of the safety function.

(3) Do not use the product in any direction other 

than the specified mounting orientations of 

the main body and actuator.

(4) Dispose of the product in accordance with the 

laws set by each country.

Precautions for Safe Use

Actuator Mounting Direction

Ratings and Specifications

Dimensions

Mounting

Accessory

Actuation from front

[Unit: mm]

[Unit: mm]

[Unit: mm]

active area

Safety door switch

Actuator

D41D-*CD-N1

Actuation from side

Y

X

Transverse misalignment

-5

-20

5

15

10

-15

20

-10

0

Y [mm]

S [mm]

0

5

10

12

Height misalignment

-5

-20

-24

5 10 15

-15

20 24

-10

0

X[mm]

S [mm]

0

5

10

12

Standard

ISO 13849-1, IEC 61508, IEC 62061

e
99 %

4

6.8 x10

-10

/h

1.2 x 10

-4

Suitable for SIL3 applications

20 years

PL

DC

Safety category

PFH (number)

PFD

SIL

Mission time

19

10.5

22

39.2

47.5

LED indications

18

M4

D41D-*CD-025N2

43

25

47

250

±10

 

 

D41D-A1: M4 screw

(Tightening torque: 0.8 N•m)

D41D-A2 : M5 screw

(Tightening torque: 2 N•m)

D41D-A3 : M3 screw

(Tightening torque: 0.6 N•m)

19

10.5

39

22

18

M4

12

12

16

15

18

12 18

This device complies with part 15 of the FCC Rules and Industry 

Canada license-exempt RSS standard(s).

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including 

interference that may cause undesired operation.

This device complies with the Nerve Stimulation Exposure Limits 

(ISED RSS-102) for direct touch operations. Changes or 

modifications not expressly approved by OMRON Corporation  

could void the user‘s authority to operate the equipment.

Le présent appareil est conforme aux CNR d'Industrie

Canada applicables aux appareils radio exempts de licence.

L'exploitation est autorisée aux deux conditions suivantes:

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage 

radioélectrique subi, même si le brouillage est susceptible d'en 

compromettre le fonctionnement.

Cet appareil est conforme aux limites d‘exposition relatives à la 

stimulation des nerfs (ISED CNR-102) pour les operations 

tactiles directes. Changements ou modifications non 

expressément approuvés par OMRON corporation  pourrait 

annuler le droit de l‘utilisateur à utiliser l‘équipement.

Dispose in accordance with applicable regulations.

Make sure that the DC power supply meets the 

following items. Failure to do so may result in 

serious injury or death.

- Satisfies the requirements of PELV power 

supply defined in IEC 60204-1.

- Satisfies the requirements of class 2 circuits 

defined in UL508.

When complying with safety standards, install 

the product in an appropriate manner in 

accordance with ISO 14119, with due 

consideration of the risk of defeat by the 

operator. Failure to do so may result in serious 

injury or death.

Install the switch and actuator in a position 

where the opening of the guard door can be 

detected within a safe distance. Failure to do so 

may result in serious injury or death.

Do not apply DC voltages exceeding the rated 

voltages, nor any AC voltages to the product. 

Failure to do so may result in serious injury or 

death. 

Use only appropriate components or devices 

complying with relevant safety standards 

corresponding to the required performance 

level and safety category. Failure to do so may 

result in serious injury or death. Conformity to 

requirements of the performance level and 

safety category must be determined as an 

entire system. It is recommended to consult a 

certification body regarding assessment of 

conformity to the required safety level.

*1. Refer to the product catalog for connection specifications with the 

controller.

D41D

RFID

125 kHz

Type 4

D41D-1: High (individual coding)

D41D-2: High (individual coding re-teaching enabled)

-6 dBm max.

100 ms max.

200 ms max.

2 s max.

D41D-A1, D41D-A2, D41D-A3

12 mm

(lateral actuation: 9mm)

10 mm (-10 to 60°C)

6 mm (-10 to 60°C, lateral)

8 mm (-25 to 65°C)

4 mm (-25 to 65°C, lateral)
18 mm

(lateral actuation: 15 mm)

<2.0 mm
<0.5 mm

35 mA

III
3

(UL certification is 2)

24 VDC (-15%/+10%)

(stabilized PELV-power supply) 

100 A 

Pollution degree

Supply voltage (Ue)

Conditional short-circuit current 

Test pulse interval 

1.0 ms max.

Current 

consumption 

per input

5 mA 

Safety output Switching element PNP type, short-circuit proof

(OSSD)

DC-12: 24 VDC (Ue)/0.25 A (Ie) 

DC-13: 24 VDC (Ue)/0.25 A (Ie)

Operating current

(Ie1)

0.25 A max.

Voltage drop (Ud) <1 V

Test pulse duration 1.0 ms max.

Test pulse interval 1,000 ms

Switching element PNP type, short-circuit proof

DC-12:24 VDC (Ue)/0.05 A (Ie)

DC-13:24 VDC (Ue)/0.05 A (Ie)

Operating 

current (Ie2)

0.05 A max.

Voltage drop (Ud) <2 V 

100 ms min.

Utilization category

Auxiliary

output

Utilization 

category

Safety input

Accepted test 

pulse duration 

on input signal

1 Hz

32 VDC

0.8 kV

<0.5 mA

0.5 mA

Minimum operating current (Im)

Switching frequency (f)

Rated insulation voltage (Ui)

Rated impulse withstand 

voltage (Uimp)

OFF-state leakage current (Ir)

Current consumption (Io)

Overvoltage category

-25 to 65°C

-25 to 85°C

93% max.

(non-condensing, non-icing)
IP65 and IP67

10 to 55 Hz, amplitude 1.0 mm

30 g/11 ms

Ambient operating temperature

Ambient storage temperature

(including during transportation)
Ambient operating humidity

Degree of protection

(IEC 60529)

Vibration resistance

Shock resistance

Assured switch-off distance

(Sar)

Differential travel

Repeat accuracy (R)

Typical operating distance

(Sn)(IEC 60947-5-3)
Assured operating distance

(Sao)

(IEC 60947-5-3)

Transmitter outputs

Response time (ON to OFF)

Risk time

Startup time

Actuator

31 max. (*1)
100m max.

(between switch and power supply)

Cable lengths

Connection

Series connection

Model

Fixing screws

Thermoplastic PBT (enclosure)

2×M4

(Refer to the outline drawing for the actuator)

0.8 N•m

(Refer to the outline drawing for the actuator)

Tightening torque of fixing

screws

Material

Detection method

Frequency band

Interlock type (ISO 14119)

Coded level (ISO 14119)

Technical

Electrical

Connection

Environmental 

Weight

Unit: <50 g, Packaged: <110 g

External device fuse rating

Mechanical

2 A max.

Original Instructions

D41D-1CD-N1: Connector plug M8, 

8-pole, A-coded

D41D-2CD-025-N2: Connecting cable 

0.25-m long with connector M12

50

109

90

100

60

6.8

40

16

M5

22

4

3

9

M3

4

1.2 dia.

6 dia.

7

15

16.5

[Unit: mm]

12

4

12

4

12

9

7

2

9

2

9

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