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  • General-Purpose Relay LY4

General-Purpose Relay LY4 LY4 AC100/110

4.60 (10)
LY4 AC100/110
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22.44 SGD
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Item Feature
This product is manufactured in Japanese standards. Please check the specification before you order.
Failure Rate P Level (Reference Value: Opening/Closing Frequency 120 times/min)
DC5V 100mA
Maximum Switching Frequency (times/hour)/mechanical
Rated Current
Rated Current (mA)
50Hz:22.5/25.5 60Hz:19/21.8
Contact Materials
Power Consumption (VA, W)
About 1.95-2.5
Number of Pins
Indicator Lamp
Not available
Inductive Load (cos phi =0.4, L/R = 7 ms)
AC110V 7.5A
Weight (g)
About 70
Maximum Contact Voltage (V)
Coil Inductance (H)/ Iron Working Time
Reference value: 17.3 (60 Hz)
Ambient Humidity
5 - 85%RH
Impact Resistance
Vibration Resistance
10-55 To 10 Hz single amplitude (double amplitude of 1.0 mm) 0.5 mm
Mechanical Durability
More than 50 million (18,000 annual opening and closing frequency/h)
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.
Insulation Resistance (Mohm)
More than 100 Measure the same DC500V insulation resistance meter for voltage section location
Maximum Voltage (V)
110% (ambient temperature of 23 deg C)
Standard form
Contact Maximum Value
Contact Type
Maximum Switching Frequency (times/hour)/rated load
Operating Voltage
80% or less
Number of Poles
Terminal Shape
Plug-in terminal
Not available
Rated Voltage (V)
Installation Shape
Standard type
Impact Resistance (Malfunction)
Resistance Load
AC110V 10A
Release Voltage
More than 30 %
Coil Inductance (H)/ Iron Opening Time
Reference value: 10.5 (60 Hz)
CR Circuit
Not available
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
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
Vibration Resistance (malfunction)
10-55 To 10 Hz single amplitude (double amplitude of 1.0 mm) 0.5 mm
External Dimensions (Width (W)x Depth (D)x Height (H)) (mm)
41.5 or less x 42.4 x 28.0 or less
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
Coil Resistance (ohm)
Reference value: 1800 (coil temperature 23 degree c at 60 Hz ) Tolerances: + 15%,-20 %
Customer Reviews
5 star 8
4 star 0
3 star 2
2 star 0
1 star 0
Review Rating: 4.60
10 Customer Reviews
The reviews are automatic translation.
Repair of welding machine
From Japan
On 2016-12-28 22:33:25
It is not perfect in replacing genuine. After a little more restrained and can the price, it is even better.
This review is about item#2492332.
Maintenance of machinery
From Japan
On 2016-11-16 20:28:34
I do not know because there is no track record because it is the first time the exchange called the movement of the machine is smooth
This review is about item#2492314.
For the workplace of the machine
From Japan
On 2016-02-23 18:08:34
Of this purchase was purchased in the spare.
This review is about item#02492323.
Original Equipment (auto racing field)
From Japan
On 2015-09-17 22:32:41
You can use to under adverse environment peace of mind in the stable operation. I think that I want you to production now even longer.
This review is about item#35080726.
Cutting of the circuit
From Japan
On 2014-06-19 20:01:10
Goods is likely to be firm to have confidence
This review is about item#02492314.
Instantaneous switching of power
From Japan
On 2014-02-25 19:18:24
- Suitable for the application in good
This review is about item#02492314.
We have used for the annual inter-OFF circuit of household toilet heater.
From Japan
On 2014-02-18 22:51:42
It is compact when viewed from the contact capacity. Also robustness is good. It feels and improvements that hard to look at a diagram of the contact. Because it is not company work Remove company name of the check.
This review is about item#02492314.
Machine control system repair
From Japan
On 2013-12-23 17:27:04
Because it is being used in the machine control system that repair has in stock at all times, but this time because there is no retail store in the neighborhood it was purchased in Monotarou's. You can use normally. Also those of the other relay buyers have been written, but because I think that leg of the relay is able to bend at the time of transport, I think that it may be equal to protect refers to the Styrofoam.
This review is about item#02492375.
Synchronization on / off control of the load connected to the tenant circuit.
From Japan
On 2011-09-11 23:14:09
Normally, even pricewise, to say from the multitude of choices I think probably a place to select the "MY ~". But, I am in the "LY ~". <Good points> ① Unlike "MY ~", legs for the operating coil has become the "portrait", Education easy point for beginners of workers, "Honest mistake is less" in terms of the time of construction. <Disliked> ① this time, probably because it was ordered in individual packaging "is one leg, had bent a little bit," because, Situ, repair by pliers. And was exaggerated to say the "disliked", does not also become something of a problem. It plans to use in the future. ② compared with the "MY ~", "price is high" point as the "choice is less" points. I think the price is high for aside, may choices increases. For example, a if "eBook ~", "with the CR circuit," which is granted to line up.
This review is about item#02492341.
As a replacement part.
From Japan
On 2011-01-27 10:31:52
I would like you to consider bulk selling on the box. Individual packaging takes time and effort to peel off as the number increases, and legs often bend.
This review is about item#02492357.