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  • General-Purpose Relay LY4

General-Purpose Relay LY4 LY4 AC100/110

4.69 (13)
LY4 AC100/110
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22.99 SGD
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Item Feature
Operating Voltage
80% or less
Release Voltage
More than 30 %
Coil Inductance (H)/ Iron Working Time
Reference value: 17.3 (60 Hz)
Coil Inductance (H)/ Iron Opening Time
Reference value: 10.5 (60 Hz)
Indicator Lamp
Not available
Contact Type
Impact Resistance
Inductive Load (cos phi =0.4, L/R = 7 ms)
AC110V 7.5A
Resistance Load
AC110V 10A
Terminal Shape
Plug-in terminal
Number of Pins
Failure Rate P Level (Reference Value: Opening/Closing Frequency 120 times/min)
DC5V 100mA
Installation Shape
Standard type
This product is manufactured in Japanese standards. Please check the specification before you order., This product is manufactured in Japanese standards. Please check the specification before you order.
Recovery Time
25 ms or less Rated operation voltage condition, excluding contact bounce.
Operating Time
25 ms or less Rated operation voltage condition, excluding contact bounce.23 deg C ambient temperature
Contact Maximum Value
Withstand Voltage
Coil and contacts between :AC2000V50/60 Hz 5 min Different pole contacts between :AC2000V50/60 Hz 5 min The junction between same poles :AC1000V50/60 Hz 5 min
Mechanical Durability
More than 50 million (18,000 annual opening and closing frequency/h)
Vibration Resistance (malfunction)
10-55 To 10 Hz single amplitude (double amplitude of 1.0 mm) 0.5 mm
Insulation Resistance (Mohm)
More than 100 Measure the same DC500V insulation resistance meter for voltage section location
Maximum Switching Frequency (times/hour)/mechanical
Number of Poles
Weight (g)
About 70
Power Consumption (VA, W)
About 1.95-2.5
Rated Current
Ambient Humidity
5 - 85%RH
Rated Current (mA)
50Hz:22.5/25.5 60Hz:19/21.8
CR Circuit
Not available
Contact Materials
Not available
Maximum Contact Voltage (V)
Rated Voltage (V)
Impact Resistance (Malfunction)
Maximum Switching Frequency (times/hour)/rated load
External Dimensions (Width (W)x Depth (D)x Height (H)) (mm)
41.5 or less x 42.4 x 28.0 or less
Standard form
Coil Resistance (ohm)
Reference value: 1800 (coil temperature 23 degree c at 60 Hz ) Tolerances: + 15%,-20 %
Vibration Resistance
10-55 To 10 Hz single amplitude (double amplitude of 1.0 mm) 0.5 mm
Electrical Durability
More than 200,000 (rated openign and closing frequency of 1800 times per hour)
Contact Resistance (mohm)
Less than 50 DC5V 1A voltage depression
Operating Ambient Temperature (deg C)
-25-40 (however, not in cases of freezing or dew condensation) With an energization current below 4A, it is -25-55 deg C.
Maximum Voltage (V)
110% (ambient temperature of 23 deg C)
Customer Reviews
5 star 11
4 star 0
3 star 2
2 star 0
1 star 0
Review Rating: 4.69
13 Customer Reviews
The reviews are automatic translation.
Replacement work of things in use
From Japan
On 2017-11-13 15:43:54
There is no special discomfort as it uses only this product
This review is about item#2492341.
To the car's sub battery charge switching circuit.
From Japan
On 2017-10-13 14:54:45
Because it is made by Omron of trust, I use it at all times. This time I chose a high current type, but it is in normal use.
This review is about item#2492314.
When controlling the temperature of the vinyl house, opening and closing of the control signal of the electromagnetic switch
From Japan
On 2017-10-10 20:30:50
It was a relay that was built in the control board installed 40 years ago, but I was touched by the existence of the same model type.
This review is about item#2492323.
Repair of welding machine
From Japan
On 2016-12-28 22:33:25
It is perfect for genuine replacement. If you can keep the price a little more, it is even better.
This review is about item#2492332.
Machine maintenance
From Japan
On 2016-11-16 20:28:34
Since it is the first exchange, I do not know because there is no track record but I hope the movement of the machine will be smooth
This review is about item#2492314.
For office machines
From Japan
On 2016-02-23 18:08:34
I bought this purchase for spare use.
This review is about item#02492323.
Original equipment (car racing field)
From Japan
On 2015-09-17 22:32:41
It can be used under a bad environment without worry with stable operation. I hope you will continue to manufacture it for a long time.
This review is about item#35080726.
Disconnection of circuit
From Japan
On 2014-06-19 20:01:10
Goods are solid and it seems to be reliable
This review is about item#02492314.
Switching instantaneous power interruption
From Japan
On 2014-02-25 19:18:24
· Good for the application
This review is about item#02492314.
We are using it as a fixed time OFF circuit of heater for home toilet.
From Japan
On 2014-02-18 22:51:42
Compact in terms of contact capacity. Robustness is also good. I feel that it is difficult to see the figure of the contact point as an improvement point. Since I am not working for a company, I will remove the company name check.
This review is about item#02492314.