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PRODUCT  l  Safety Mode Conversion Switch

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Human Error Prevention 
Mode Conversion Switch
Product Features

Human Error Prevention Mode Conversion Switch (EMK-C21 Series)


1. Safety mode selector switch for human error prevention – used to stop and

    restart equipment during work in hazardous areas.

2. Door cannot be opened unless the operator possesses the key.

3. Prevents safety accidents caused by human error in advance.
4. Manufactured in compliance with global standards IEC 60947-1:2020 and
    EN 60947-5-1:2017.
5. Compliant with Korean safety regulations S1-G-1 and KS C IEC 60947-5-1.
6. Easy wiring design reduces wiring work time and labor costs.
7. When used in conjunction with the EMD general door interlock switch,
   ensures operator safety and allows safe operation in hazardous areas.
1 . Type of Nameplate (EMK-C21 Series)

1. EMK-CA Nameplate : Applies to Human Error Prevention Mode Conversion Switches installed

outside the Hazardous Areas


2 . Product Type (EMK-C21 Series)
Symbol
Key Separation Location
NC energized position
Lock position
Lock status
Contact Configuration
Model
ATO

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LOCK Type2NC / 1NOEMK-C21-ATO
ATD

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LOCK Type
2NC / 1NO
EMK-C21-ATD
ATM

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LOCK Type
2NC / 1NO
EMK-C21-ATM
3 . Rated/Specifications (EMK-C21 Series)
Model Name
EMK – C21 -  □ □ □
Contact Configuration
1a / 2b
AUX.OutputNPN
Rated Voltage
DC24V
Rated Power Consumption
0.96W ±10% 

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