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The Comepi safety limit switches are devices designed and made in

compliance with the interna�onal IEC regula�ons and the EN European 

standards.

They can be used on machines where danger condi�ons may last for a 

certain period of �me a�er the stop signal and for building safety systems 

in compliance with standard ISO14119. Being a protec�on equipment for 

operators, its incorrect installa�on or tampering can damage people, 

even seriously. 

The device installa�on must be carried out according to the regula�ons in 

force by authorized staff only.

Make sure the switch works properly before star�ng the machine and 

periodically check the correct opera�on of the equipment.

Installa�on precau�ons

Before star�ng the machine, check the proper opera�on of the safety 

system.

Periodically check the correct opera�on of the device.

The device installa�on must be carried out by authorized and qualified 

staff only.

The device use must be limited to the applica�ons mee�ng the regula

-

�ons requirements.

The device installa�on and the safety system design must be carried out 

only by people knowing the regula�ons in force.

The device installa�on and the safety system design must be carried out 

in compliance with the regula�ons in force.

In case of doubts or special applica�ons, please contact COMEPI Technical 

Support.

Do not install in dusty or dirty places.

During installa�on and opera�on, it is fundamental to prevent dust and 

dirt from entering the opening when the start key is not inserted.

Before any pain�ng opera�on, cover the openings and the iden�fica�on 

label.

Do not install in places where there are flammable dusts or gases.

Do not install in places with strong vibra�ons; impacts and vibra�ons can

prevent the switch correct opera�on.

Do not remove and install again the star�ng head: improper installa�on 

may lead to malfunc�ons.

Possibility of disassembling, rota�ng and reassembling the drive head:

the opera�on, if performed incorrectly, could lead to malfunc�on.

(follow the instruc�ons on page 2)

Use only proper actuators supplied by COMEPI, suitable for the model 

used; otherwise warranty could be void.

Install the actuator in a suitable way, so that it does not harm the 

operator when the door is open.

If the microswitch is damaged or worn, replace the whole device to 

ensure safety.

If the actuator is damaged or worn, replace it.

Replace the equipment a�er exceeding the mechanical durability limit.

During wiring, keep load under the value of the use category.

Check that safety contacts are connected to a protec�on fuse.

Before reaching the switch contacts, make sure the device is not

supplied with power.

Tighten the screws with a �ghtening torque not higher than 0.5Nm.

The device must not be disposed of following special procedures, just

comply with the regula�ons in force in the country where the device is 

used.

Use limits

Use the switch complying with the regula�ons in force within its 

opera�on limits and following the instruc�ons. 

The manufacturer is not to be held responsible for damages if: the device 

was not used properly, instruc�ons were not followed, assembly and 

maintenance opera�ons were carried out by unauthorized or unskilled 

staff, func�onal tests were omi�ed.

This device complies with the following Direc�ves:

Low Tension Direc�ve 2014/35/EU According to standard EN 60947-5-1

Machinery Direc�ve 2006/42/EC According to standard EN ISO 14119

Direc�ve RoHS 2002/95/EC

Approvals

cULus according to standard UL508 – IMQ according to EN 60947-5-1

(for the complete list of the cer�fied products, please contact COMEPI

Technical Support).

Use and opera�on examples

This kind of device is typically used to ensure the operator’s safety

on machines where a danger condi�on can last a certain �me a�er the 

stop condi�on has been enabled on the machine, for example due to 

iner�a of some mechanical moving parts, or to the presence of parts with 

high temperature or pressure. 

This device, if used singularly, is not suitable for machines where the 

operator can completely enter a fenced area, because an accidental 

closure of the fence may occur a�er the operator had entered this area. 

To test the proper opera�on of the equipment, check the correct 

inser�on of the actuator into the head opening and close the guard 

star�ng the machine. 

In these condi�ons it shall not be possible to open the guard. 

When the machine is stopped and the protec�on disabled, the machine 

shall not start.

Safety warnings

Safety switches protect operators. 

An incorrect installa�on as well as the tampering of the device and of its 

safety system can cause even extremely dangerous situa�ons. 

Never bypass or tamper with the device.

In order to avoid any tampering a�empt, it is advisable for the installer to

mount the device in a place that cannot be easily reached by 

unauthorized staff, even using physical barriers or other means to make 

tampering difficult.

 

Use instruc

ti

ons – Electromagne

ti

c safety limit switch

010 ISTR 03 SC 1221-02

The CE declaraiton of this product is available in the download sec�on of website www.comepi.it or by wri�ng to the following email address: [email protected]

DDC 12 – Electromagne�c switches with separate actuator series FEP

*Only use copper conductors 60/70°C, AWG14-18, stranded and solid conductor. Terminals maximum 

ti

ghtening torque 0.8Nm

Technical data 

Casing  

Technopolymer casing  Rated imp

u

lsive withstand voltage Uimp 

2

,

5

 kV 

Room temperat

u

re d

u

ring opera

ti

on 

-

25°

C … +

70°

C  Conven

ti

onal thermal c

u

rrent 

I

th 

10A

 

E

nvironmental designa

ti

on 

Type-

1

 enclos

u

re 

O

per

a�

onal c

u

rrent  

A

C-

15

 

24

V       

10A

 

 

230

V       

4A

 

Protec

ti

on against electrical 

shocks 

Class 

II

 (thermoplas

ti

c casing

)

 

O

pera

ti

onal c

u

rrent DC-

13

 

24

V          

4A

 

 

Degree of protec

ti

on 

I

I

P

65

 (plas

ti

c casing

)

  Ma

x

im

u

m switching fre

qu

ency 

600

 cycles

/

ho

u

Rated ins

u

la

ti

on voltage Ui 

250

V   Load factor 

0

.

5

 

Use categories according to 

UL

508

 

A300

 

 

Q300

  Resistance between contacts 

25

 m

Ω

 

Connec

ti

ng terminals 

S

crews M

3

 with cable clamp   Terminal marking 

A

ccording to 

IE

60947

-

5

-

1

 

 

Dimensions of connec

ti

ng cables* 

 

0

.

34

 … 

1

.

5

 mm² 

Mechanical d

u

rability 

1

 million opera

ti

ons 

B10

4

 million opera

ti

ons 

 

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