General-purpose Relay
MK-I/-S
Exceptionally Reliable General-purpose
Relay Features Mechanical Indicator/Push
Button
• Breaks relatively large load currents despite small size.
• Long life (minimum 100,000 electrical operations) assured by
silver contacts.
• Built-in operation indicator (Mechanical, LED), push button,
diode surge suppression, varistor surge suppression.
• Standard models are UL, CSA, SEV, DEMKO, NEMKO,
SEMKO, TÜV (IEC), and VDE.
• Conforming to CENELEC standards.
Model Number Structure
■ Model Number Legend
Standard Models
MK
-
-
1
2
3
4
5
1. Contact Form
2: DPDT
3: 3PDT
2. Cover
P: Dust cover
Special Accessories
MK
-
-
1
2
3
4
5
1. Contact Form
2:
DPDT
3:
3PDT
2. Cover
P:
Dust cover
3. Classification
N:
LED indicator
D:
Diode
V:
Varistor
ND: LED indicator and diode
NV: LED indicator and varistor
6
3. Internal Connection Construction
Blank: Standard
2 or 5: Non-standard connection
(Refer to Terminal Arrangement/
Internal Connections)
4. Mechanical Indicator Push Button
S:
Mechanical indicator and
push button
I:
Mechanical indicator
-
6
7
8
4. Coil Polarity
Blank: Standard
1:
Reverse
(Refer to Terminal Arrangement/
Internal Connections)
5. Internal Connection Construction
Blank: Standard
2 or 5: Non-standard connection
(Refer to Terminal Arrangement/
Internal Connections)
5. Approved Standards
Blank: UL, CSA, DEMKO, NEMKO
SEMKO, SEV, TÜV
VD:
VDE
6. Rated Voltage
(Refer to Coil Ratings)
6. Mechanical Indicator Push Button
S:
Mechanical indicator and
push button
I:
Mechanical indicator
7. Approved Standards
Blank: UL and CSA only
VD:
VDE (N and D models only)
8. Rated Voltage
(Refer to Coil Ratings)
MK-I/-S
General-purpose Relay
A-45