Omron MY4H User manual

Hermetically Sealed Relay MY4H 1
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.
• Conforms to UL508 and CSA 22.2.
Model Number Structure
■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
12 VDC, 24 VDC, 24 VAC, 110/120 VAC
Ordering Information
■List of Models
MY- - -
12345
Type Contact form Plug-in socket/solder terminals
Hermetically sealed 4PDT
4PDT (bifurcated)
MY4H-US
MY4ZH-US

2Hermetically Sealed Relay MY4H
Specifications
■Ratings
Coil
Contact Ratings
■Characteristics
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
Contact material Ag alloy
Rated load Resistive
p.f.=1
110 VAC, 3 A
24 VDC, 3 A
Inductive
p.f.=0.4
L/R–7 ms
110 VAC, 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 mΩmax.
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 MΩmin. (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 to 10 Hz, 0.5 mm single amplitude (1.0 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
Malfunction:
When energized: 200 m/s2
When not energized: 200 m/s2
Endurance Mechanical: Single contact: 50,000,000 operations
Bifurcated contact: 5,000,000 operations
Electrical: 100,000 operations. (Single contact)
50,000 operations. (Bifurcated contact)
Ambient temperature Operating: –25 to 60°C
Ambient humidity Operating: 5% to 85%
Weight Approx. 50 g

Hermetically Sealed Relay MY4H 3
Engineering Data
Maximum Switching Power Endurance
MY4(Z)H MY4H
Dimensions
DC resistive load
AC resistive load
Switching voltage (V)
110 VAC resistive load
24 VDC resistive load
Switching current (A)
Note: The endurance is half for bifurcated contact models.
Switching current (A)
Endurance (x104operations)
24 VDC inductive load (L/R = 7 ms)
DC inductive load
(L/R = 7 ms)
AC inductive
load (cosφ=0.4)
110 VAC inductive
load (cosφ=0.4)
MY4(Z)H 2.6
6.4
Fourteen, 1.2-dia.×3, round holes
Solder Terminal Models
35 max.
28.5 max.
22 max.
(There is no coil polarity.)
(BOTTOM VIEW)
Terminal Arrangement/
Internal Connections

4Hermetically Sealed Relay MY4H
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. J131-E1-02
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 MY4(Z)H Relay.
2. Clips are not included.
■Dimensions
■Accessory (Option)
Item Pole Mode
Track-mounted socket 4 PYF14A-E-US
14-M3x8
4
6−0.1
+0.2
PYF14A-E-US
72 max.
29.5 max.
Note: Track mounting is also
possible.
(TOP VIEW)
Two, M3, M4, or 4.5-dia holes
31 max.
(Top View)
Mounting Holes
Tow, 4.2x5
mounting
Terminal Arrangement/
Internal Connections
36.3
4.5
4.5 1.2
PYC-A1
(2 pcs per set)