General-purpose Relays MK-S New Model 1
General-purpose Relays
MK-S New Model
General-purpose Relays Featuring
Mechanical Indicator and Lockable Test
Button
• Built-in operation indicator (mechanical and LED), and new
models with lockable test button.
• Nameplate provided on models with lockable test button.
• RoHS Compliant.
• UL approval for most models. (UL approval pending for models
with built-in LED indicators.)
Features
Two-way Action Test Button
Model Number Structure
■Model Number Legend
1. Contact Form
2: DPDT
3: 3PDT
2. Terminals
P: Plug-in
3. Mechanical Indicator/Test Button
Blank: Mechanical indicator
I: Mechanical indicator and lockable test button
4. LED Indicator
Blank: Standard
N: LED indicator
5. Coil Polarity
Blank: Standard
1: Reverse polarity (DC coil only)
6. Surge Absorption
Blank: Standard
D: Surge absorber diode (DC coil only)
V: Surge absorber varistor (AC coil only)
7. Internal Connections
Blank: Standard
2 or 5: Non-standard connections (Refer to “Terminal
Arrangement/Internal Connection”.)
8. Rated Voltage
(Refer to “Coil Ratings”.)
Yellow
button
Relay in
Normal Operation
For Momentary
Operation
For Lock
Operation
Pull down the test
button to the first
position, then press the
yellow button with an
insulated tool to
operate the contact.
Pull down the test
button to the second
position.
(The contact is now in
the locked position.)
12 345 6 7
MKS@@@@@-@-@
2General-purpose Relays MK-S New Model
Ordering Information
■List of Models
■List of Models (Order Separately)
Type Termi-
nals
Contact form Internal connections
(See note 3.)
With mechanical indicator With mechanical indicator
and lockable test button
Coil ratings
Standard
Models
Plug-in DPDT Standard MKS2P MKS2PI AC/DC
Non-standard MKS2P-2 MKS2PI-2
3PDT Standard MKS3P MKS3PI
Non-Standard MKS3P-2 MKS3PI-2
MKS3P-5 MKS3PI-5
Models with
LED Indicator
(See note 2.)
DPDT Standard MKS2PN(1) MKS2PIN(1) AC/DC
Non-standard MKS2PN(1)-2 MKS2PIN(1)-2
3PDT Standard MKS3PN(1) MKS3PIN(1)
Non-Standard MKS3PN(1)-2 MKS3PIN(1)-2
MKS3PN(1)-5 MKS3PIN(1)-5
Models with
Diode
(See note 2.)
DPDT Standard MKS2P(1)-D MKS2PI(1)-D DC
Non-standard MKS2P(1)-D-2 MKS2PI(1)-D-2
3PDT Standard MKS3P(1)-D MKS3PI(1)-D
Non-Standard MKS3P(1)-D-2 MKS3PI(1)-D-2
MKS3P(1)-D-5 MKS3PI(1)-D-5
Models with
LED Indicator
and Diode
DPDT Standard MKS2PN-D MKS2PIN-D DC
Non-standard MKS2PN-D-2 MKS2PIN-D-2
3PDT Standard MKS3PN-D MKS3PIN-D
Non-Standard MKS3PN-D-2 MKS3PIN-D-2
MKS3PN-D-5 MKS3PIN-D-5
Models with
Varistor
DPDT Standard MKS2P-V MKS2PI-V AC
Non-standard MKS2P-V-2 MKS2PI-V-2
3PDT Standard MKS3P-V MKS3PI-V
Non-Standard MKS3P-V-2 MKS3PI-V-2
MKS3P-V-5 MKS3PI-V-5
Models with
LED Indicator
and Varistor
DPDT Standard MKS2PN-V MKS2PIN-V AC
Non-standard MKS2PN-V-2 MKS2PIN-V-2
3PDT Standard MKS3PN-V MKS3PIN-V
Non-Standard MKS3PN-V-2 MKS3PIN-V-2
MKS3PN-V-5 MKS3PIN-V-5
Item Type Model
Track-mounted Socket 8-pin PF083A-E
11-pin PF113A-E
8-pin PF083A-D
11-pin PF113A-D
Hold-down Clip
(For PF083A-E and PF113A-E)
PFC-A1
Rated voltage
Note: 1. When ordering, add the rated voltage to the model number. Rated voltages are given in the coil ratings table in the specifications.
Example: MKS3P 24 VDC
2. The DC coil comes in two types: standard coil polarity and reverse coil polarity.
Refer to Terminal Arrangement and Internal Connections.
Example: MKS2PIN1-2 24 VDC
3. Refer to Terminal Arrangement and Internal Connections for non-standard internal connections.
Reverse coil polarity
General-purpose Relays MK-S New Model 3
Specifications
■Ratings
Coil Ratings
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/−20% for AC rated current and
±15% for DC coil resistance.
2. Performance characteristic data are measured at a coil temperature of 23°C.
3. The maximum voltage is one that is applicable instantaneously to the Relay coil at 23°C and not continuously.
4. For DC-operated Relays with the LED indicator built-in, add an LED current of approx. 5 mA to the rated current.
Contact Ratings
Rated voltage Rated current Coil resistance Must operate
voltage
Must release
voltage
Max. voltage Power
consumption
50 Hz 60 Hz
AC 6 V 443 mA 385 mA 3.1 Ω80% max. of rated
voltage
30% min. of rated
voltage at 60 Hz
25% min. of rated
voltage at 50 Hz
110% of rated volt-
age
Approx. 2.3 VA
at 60 Hz
Approx. 2.7 VA
at 50 Hz
12 V 221 mA 193 mA 13.7 Ω
24 V 110 mA 96.3 mA 48.4 Ω
100 V 26.6 mA 23.1 mA 760 Ω
110 V 24.2 mA 21.0 mA 932 Ω
200 V 13.3 mA 11.6 mA 3,160 Ω
220 V 12.1 mA 10.5 mA 3,550 Ω
230 V 10.0 mA 11.5 mA 4,250 Ω
240 V 11.0 mA 9.6 mA 4,480 Ω
DC 6 V 224 mA 26.7 Ω15% min. of rated
voltage
Approx. 1.4 W
12 V 112 mA 107 Ω
24 V 55.8 mA 430 Ω
48 V 28.1 mA 1,710 Ω
100 V 13.5 mA 7,390 Ω
110 V 12.3 mA 8,960 Ω
Load Resistive load
(cosφ = 1)
Inductive load
(cosφ = 0.4)
Contact mechanism Single
Contact material AgSnIn
Rated load NO 10 A, 250 VAC
10A, 30 VDC
7 A, 250 VAC
NC 5 A, 250 VAC
5 A, 30 VDC
Rated carry current 10 A
Max. switching voltage 250 VAC, 250 VDC
Max. switching current 10 A
Max. switching power NO 2,500 VA/300 W
NC 1,250 VA/150 W
4General-purpose Relays MK-S New Model
■Characteristics
Note: 1. The values given above are initial values.
2. P level: λ60 = 0.1 × 10-6/operation
3. Ambient temperature of models with LED indicator is −25 to 60°C.
■Approved Standards
UL508 (File No. E41515)
CSA Standard: CSA Certification by
: CSA C22.2 No. 14
Note: Applications have been submitted for UL and CSA certification
for models with built-in LED indicators.
IEC Standard/TUV Certification:
IEC61810-1 (Certification No.
R50104853)
Note: When Relays are mounted on the PF083A-E or PF113A-E, the
maximum carrying current is 9 A.
Engineering Data
■Reference Data
Contact resistance 100 mΩ max.
Operate time AC: 20 ms max.
DC: 30 ms max.
Release time 20 ms max.(40 ms max. for built-in Diode Relays)
Max. operating frequency Mechanical: 18,000 operations/h
Electrical: 1,800 operations/h (under rated load)
Insulation resistance 100 MΩ min. (at 500 VDC)
Dielectric strength 2,500 VAC 50/60 Hz for 1 min between coil and contacts
1,000 VAC 50/60 Hz for 1 min between contacts of same polarity and terminals of the same polarity
2,500 VAC 50/60 Hz for 1 min between current-carrying parts, non-current-carrying parts, and opposite
polarity
Insulation method Basic insulation
Impulse withstand voltage 4.5 kV between coil and contacts (with 1.2 × 50 µs impulse wave)
3.0 kV between contacts of different polarity (with 1.2 × 50 µs impulse wave)
Pollution degree 3
Rated insulation voltage 250 V
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)
Malfunction: 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
Shock resistance Destruction: 1,000 m/s2 (approx. 100 G)
Malfunction: 100 m/s2 (approx. 10 G)
Endurance Mechanical: 5,000,000 operations min. (at 18,000 operations/h under rated load)
Electrical: 100,000 operations h. (at 1,800 operations/h under rated load)
Failure rate P level (reference value) 10 mA at 1 VDC
Ambient temperature Operating: –40 to 60°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight Approx. 90 g
Coil ratings Contact ratings Operations
6 to 110 VDC
6 to 240 VAC N.O.
contact
10 A, 250 V AC 50/60 Hz (Resistive)
10 A, 30 V DC (Resistive)
7 A, 250 V AC 50/60 Hz (General Use)
6,000
N.C.
contact
5 A, 250 V AC 50/60 Hz (Resistive)
5 A, 30 V DC (Resistive)
7 A, 250 V AC 50/60 Hz (General Use)
6,000 Coil ratings Contact ratings Operations
6, 12, 24, 48,
100, 110 VDC
6, 12, 24, 100,
110, 200, 220,
240 VAC
N.O.
contact
10 A, 250 V AC 50/60 Hz (Resistive)
10 A, 30 V DC (Resistive)
7 A, 250 V AC 50/60 Hz (General Use)
100,000
N.C.
contact
5 A, 250 V AC 50/60 Hz (Resistive)
5 A, 30 V DC (Resistive)
7 A, 250 V AC 50/60 Hz (General Use)
100,000
Maximum Switching Power Rated Carry Current vs. Ambient Rated Temperature
Note: The lower limit of the ambient operating temperature for models with built-in operation
indicators is −25°C.
100
50
30
10
5
3
110 30 50 100 300 500
1.000
Switching voltage (V)
Switching current (A)
AC resistive load
with NO contact
AC inductive
load
(cosφ = 0.4)
DC resistive load
with NO contact
AC resistive load
with NC contact
DC resistive
load with
NC contact
−40 −20 0 20 40 60 80
10
5
0
UL derating curve
Rated carry current (A)
Ambient temperature (°C)
General-purpose Relays MK-S New Model 5
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Models without Test Button Models with Lockable Test Button
Sockets
See below for Socket dimensions.
Note: Use the Surface-mounting Sockets (i.e., finger-protection models) with "-E" at the end of the model number. When using the PF083A and
PF113A, be sure not to exceed the Socket's maximum carry current of 5 A. Using at a current exceeding 5 A may lead to burning. Round
terminals cannot be used for finger-protection models. Use Y-shaped terminals.
52.5 max.34.5 max.
34.5 max.
0.8 34.5 max.
34.5 max.
52.5 max.0.8
Socket Surface-mounting Socket (for track or screw mounting)
Finger-protection models ---
Maximum carry current 10 A 5 A
2 poles PF083A-E PF083A-D PF083A
3 poles PF113A-E PF113A-E-D PF113A
7
33
4
35.4
2
3.5
7
34
4
35.4
23.5
33±0.2 33±0.2
4
PF083A-E (Conforming to EN 50022)
Mounting Holes
Terminal Arrangement
PF113A-E (Conforming to EN 50022)
52 max.
Eight, M3.5 × 7 sems
41 max.
21 max.
Two, M4 or two 4.5-dia. holes Two, M4 or two 4.5-dia. holes
Eleven, M3.5 × 7 sems
52 max.
42.8 max. 31 max.
Mounting Holes
Terminal Arrangement
6General-purpose Relays MK-S New Model
Hold-down Clips
Mounting Tracks
Mounting Height with Sockets
Surface-mounting Sockets
Note: PF083A(-E) and PF113A(-E) allow either track or screw mounting.
PF083A-D
Terminal Arrangement
Mounting Holes
Eight, M4 screws
Two, M4 or two 4.5-dia. hole
4
5.5
65
27
8
5
21
22
4
12
1
11
2
A1
7
A2
3
14
6
24
38
8
30
PF113A-D
4
5.5
65
27
1
6
11
21
2
A1
11
31
5
22
7
24
10
A2
9
34
3
14
4
12
8
32
38
8
30
Terminal Arrangement
Mounting Holes
Two, M4 or two 4.5-dia. hole
Eight, M4 screws
PFC-A1
4.6
62
60.8
4.5
6
(2 pieces per set)
4.5
15 25 25 25 25 *
10 10
1000 (500)*
7.3±0.15
35±0.3 27±0.15
1
4.5
15 25 25 25 25 15
10 10
1000±4
35±0.3 27 24
16
29.2
1 1.5
* This dimension applies to the PFP-50N Mounting Track. * A total of twelve 25 × 4.5 elliptic holes is provided with six
holes cut from each track end at a pitch of 10 mm.
PFP-100N, PFP-50N
(Conforming to EN 50022)
PFP-100N2
(Conforming to EN 50022)
74.3 84.3
PF083A(-E) PF113A(-E)
77.8
(See
note.)
87.8
(See
note.)
Two
poles
Three
poles
General-purpose Relays MK-S New Model 7
Terminal Arrangement/Internal Connection
Standard Models
(AC/DC Coil)
MKS2P(I) MKS2P(I)-2 MKS3P(I) MKS3P(I)-2 MKS3P(I)-5
Models with
LED Indicator
(AC Coil)
MKS2P(I)N MKS2P(I)N-2 MKS3P(I)N MKS3P(I)N-2 MKS3P(I)N-5
Models with Diode
(DC Coil:
Standard Polarity)
MKS2P(I)N MKS2P(I)N-2 MKS3P(I)N MKS3P(I)N-2 MKS3P(I)N-5
Models with
LED Indicator and
DIode
(DC Coil:
Reverse Polarity)
MKS2P(I)N1 MKS2P(I)N1-2 MKS3P(I)N1 MKS3P(I)N1-2 MKS3P(I)N1-5
Standard Models
(DC Coil:
Standard Polarity)
MKS2P(I)-D MKS2P(I)-D-2 MKS3P(I)-D MKS3P(I)-D-2 MKS3P(I)-D-5
Models with Diode
(DC Coil:
Reverse Polarity)
MKS2P(I)1-D MKS2P(I)1-D-2 MKS3P(I)1-D MKS3P(I)1-D-2 MKS3P(I)1-D-5
Models with
LED indicator
(DC Coil)
MKS2P(I)N-D MKS2P(I)N-D-2 MKS3P(I)N-D MKS3P(I)N-D-2 MKS3P(I)N-D-5
(
Bottom V
i
ew
)
1
2
3
45
6
7
88
6
3
1
27
45
1
2
3
4
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8
10
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11
10
8
7
6
5
4
3
2
1
9
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8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4
7
2
1
36
8
1
2
3
4
567
8
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9
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1
2
3
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6
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6
3
1
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45
1
2
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8
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8
7
6
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4
3
2
1
8General-purpose Relays MK-S New Model
Safety Precautions
■Safety Precautions for Correct Use
Installation
Mount the MK-S with the marking at the bottom.
Handling
Check the coil polarity of models with built-in diodes and wire them correctly
(DC operation coil).
Test Button
Do not use the test button for any purpose other than testing. Be sure not to touch the test button accidentally as this will turn the contacts ON.
Before using the test button, confirm that circuits, the load, and any other connected item will operate safely.
Check that the test button is released before turning ON relay circuits.
If the test button is pulled out too forcefully, it may bypass the momentary testing position and go straight into the locked position.
Use an insulated tool when you operate the test button.
Models with test buttons or LED indicators fulfill the requirements for reinforced insulation between live parts and the front of cover only when the
Relay is in a complete condition, i.e. with the nameplate, nameplate frame, test button, and slider in place. If any of these parts are removed, only
the requirements for basic insulation are fulfilled.
Models with Varistor
(AC Coil)
MKS2P(I)-V MKS2P(I)-V-2 MKS3P(I)-V MKS3P(I)-V-2 MKS3P(I)-V-5
Models with
LED indicator and
Varistor
(AC Coil)
MKS2P(I)N-V MKS2P(I)N-V-2 MKS3P(I)N-V MKS3P(I)N-V-2 MKS3P(I)N-V-5
8
7
6
5
4
3
2
1
5
4
7
2
1
36
8
1
2
3
4
567
8
10
11
99
11
10
8
7
6
5
4
3
2
1
9
11
10
8
7
6
5
4
3
2
1
1
2
3
45
6
7
88
6
3
1
27
45
9
11
10
8
7
6
5
4
3
2
11
2
3
4
567
8
10
11
9
1
2
3
4
567
8
10
11
9
General-purpose Relays MK-S New Model 9
10 General-purpose Relays MK-S New Model
General-purpose Relays MK-S New Model 11
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. J168-E1-01
Printed in Japan
????-?M (????) (?)
OMRON Corporation
Industrial Automation Company
Control Devices Division H.Q.
Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: (81)75-344-7109/Fax: (81)75-344-7149
Warranty and Application Considerations
Read and Understand this Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any
questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other
period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT,
MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES
THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS
OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR
COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT,
WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS
UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND
MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in
the customer's application or use of the products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING
THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Disclaimers
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty.
It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual
performance is subject to the OMRON Warranty and Limitations of Liability.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with your
OMRON representative at any time to confirm actual specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
