Hermetically Sealed Relay MY4H 277
Hermetically Sealed Relay
MY4H
Hermetically Sealed Relay Ideal for
Hazardous Locations
• Class 1 Division 2 approved.
• Fully hermetically sealed for hazardous
locations.
• Cadmium-free contacts for environment-friendly use.
• Models with bifurcated contact also available.
• UL recognized / CSA certified.
Ordering Information
■Model Number Legend:
1. Number of Poles
4: 4 poles
2. Contact
Blank: Single
Z: Bifurcated
3. Enclosure ratings
H: Hermetically sealed
4. Approval
US: Class 1 Division 2 approval
5. Rated voltage
DC12, DC24, AC24, AC110/120
Specifications
■Ratings
Coil
Type Contact form Model
Plug-in socket/solder terminals
Hermetically sealed 4PDT MY4H-US
4PDT (bifurcated) MY4ZH-US
MY - -
12 345
Rated voltage (V) Rated current (mA) Coil resistance
(Ω)
Must operate
voltage
Must release
voltage
Max. voltage Power
consumption
50 Hz 60 Hz
DC 12 75 160 80% max. 10% min. 110% 900 mW
24 36.9 650
AC 110/120 9.9/10.8 8.4/9.2 4,430 30% min. 0.9-1.1 VA
(60 Hz)
24 53.8 46 180
278 Hermetically Sealed Relay MY4H
Contact Ratings
■Characteristics
Contact material Ag alloy
Rated load Resistive
p.f.=1
110 VAC, 3 A
24 VDC, 3A
Inductive
p.f.=0.4
L/R-7 ms
110 VAC, 0.8 A
24 VDC, 1.5 A
Rated carry current 3 A
Max. switching voltage 125 VAC, 125 VDC
Max. switching current 3 A
Max. switching power 330 VA
72 W
Contact resistance 50 mΩ max.
Operate time 20 ms max.
Release time 20 ms max.
Max. operating
frequency
Mechanical 18,000 operations/hr
Electrical 1,800 operations/hr (under rated load)
Insulation resistance 100 MΩ min. (at 500 VDC)
Dielectric strength 1,000 VAC, 1 min between coil and contacts
1,000 VAC, 1 min between contacts of different polarity
700 VAC, 1 min between contacts of same polarity
Vibration resistance Destruction 10 to 55 Hz, 1.0 mm double amplitude
Malfunction 10 to 55 Hz, 1.0 mm double amplitude
Shock resistance Destruction 1,000 m/s2
Malfunction When energized: 200 m/s2
When not energized: 200 m/s2
Endurance Mechanical: 5,000,000 operations
Electrical: 50,000 operations
Ambient temperature Operating -25 to 60°C
Storage -25 to 60°C
Ambient humidity 5% to 85%
Weight Approx. 50 g
Hermetically Sealed Relay MY4H 279
■Characteristic Data
Maximum Switching Power
MY4(Z)H
Endurance
MY4ZH
Dimensions
Unit: mm
■Solder Terminal Models
MY4(Z)H
Switching current (A)
DC resistive load
DC inductive load
(L/R = 7 ms)
AC resistive load
AC inductive load
(cosφ=0.4)
Switching voltage (V)
Note: The endurance is for bifurcated contact models.
110 VAC resistive load
24 VDC resistive load
110 VAC inductive
load (cosφ=0.4) 24 VDC inductive load (L/R = 7 ms)
Switching current (A)
Life expectancy (×104 operations)
Fourteen, 1.2-dia.×3, round holes
2.6
6.4.
35 max.
28.5 max.
22 max.
Terminal Arrangement/
Internal Connections
(There is no coil polarity.)
(BOTTOM VIEW)
280 Hermetically Sealed Relay MY4H
■Socket
Track-mounted Socket Conforming to
Class 1 Division 2
•Special Socket with Class 1 Division 2 approval.
•Holding clips contribute to safety by preventing the Relay
falling out of the Socket due to vibration.
Ordering Information
Note: 1. Class 1 Division 2 approval is obtained for use with the MY4ZH Relay.
2. PYC-A1 hold-down clips are not included, but are recommended. (Clips are packaged 2 per set)
Dimensions
Unit: mm
PYF14A-E
Item Pole Model
Track-mounted socket 4 PYF14A-E
Terminal Arrangement/
Internal Connections
(Top View)
14-M3×8
72 max.
29.5 max.
6+0.2
-0.1
Two, 4. 2 ×5
mounting holes
Mounting Holes
4
31 max.
Hermetically Sealed Relay MY4H
MEMO
Hermetically Sealed Relay MY4H
OMRON ON-LINE
Global - http://www.omron.com
USA - http://www.components.omron.com
Cat. No. X301-E-1b Printed in USA
OMRON ELECTRONIC
COMPONENTS LLC
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
847-882-2288
09/11 Specifications subject to change without notice
All sales are subject to Omron Electronic Components LLC standard terms and conditions of sale, which
can be found at http://www.components.omron.com/components/web/webfiles.nsf/sales_terms.html
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
