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  • General-Purpose Relay LY4

General-Purpose Relay LY4 LY4N AC200/220

4.60 (10)
LY4N AC200/220
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Item Feature
Coil Inductance (H)/ Iron Opening Time
Reference value: 33.1 (60 Hz)
Indicator Lamp
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 terminals
Number of Pins
Failure Rate P Level (Reference Value: Opening/Closing Frequency 120 times/min)
DC5V 100mA
Installation Shape
Standard type
Operating Voltage
80% or less
Release Voltage
Above 30%
Coil Inductance (H)/ Iron Working Time
Reference value: 57.9 (60 Hz)
Contact Resistance (mohm)
Less than 50 By DC5V 1A voltage depression method.
Operating Ambient Temperature (deg C)
-25 to 55 (however, do not freze or condense ) When current flowing is less than 4A, it will be -25 to 70 degreeC
Maximum Voltage (V)
110% (surrounding temperature of 23 deg C)
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.
Type with built-in operation indication lamp
Coil Resistance (ohm)
Reference value: 6700 (coil temperature 23 degree C, 60 Hz) Tolerance: + 15%,-20 %
Vibration Resistance
10 to 55 to 10 Hz single amplitude 0.5mm (double amplitude of 1.0 mm)
Electrical Durability
200,000 times or more (rated load opening and closing frequency of 1800 times / hour)
Rated Current
Ambient Humidity
5 - 85%RH
Rated Current (mA)
50Hz:11.5/13.1 60Hz:9.8/11.2
CR Circuit
Contact Materials
Maximum Contact Voltage (V)
Rated Voltage (V)
Impact Resistance (Malfunction)
Maximum Switching Frequency (times/hour)/rated load
Maximum Switching Frequency (times/hour)/mechanical
Number of Poles
Weight (g)
About 70
Power Consumption (VA, W)
About 1.95 to 2.5
Vibration Resistance (malfunction)
10 to 55 to 10 Hz single amplitude 0.5mm (double amplitude of 1.0 mm)
Insulation Resistance (Mohm)
100 or more Measure the same DC500V insulation resistance meter for voltage section location
External Dimensions (Width (W)x Depth (D)x Height (H)) (mm)
Less than 41.5 x 42.4 x less than 28.0
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.Surrounding temperature 23 deg C
Contact Maximum Value
Resistance load/10A INDUCTIVE LOAD / 10A
Withstand Voltage
Between coil and contact points: AC2000V 50/60Hz 1min Between heteropolar contact points: AC2000V 50/60Hz 1min Between homopolar contact points: AC1000V 50/60Hz 1min
Mechanical Durability
50 million times or more (opening and closing frequency of 18000 times per hour)
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 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.
Machine control system repair
From Japan
On 2013-12-23 17:27:04
Since it is used in the control system of repaired machine, it is always in stock, but since there is no retail store in the neighborhood, this time I purchased it with monotaro san. It can be used normally. Although other relay purchasers are also written, I think that it is good that the legs of the relay bend at the time of transportation, so it would be good to insert foamed polystyrene and protect it.
This review is about item#02492375.
Synchronous on / off control of the load connected to the tenant circuit.
From Japan
On 2011-09-11 23:14:09
Normally, I think that it is a place to choose "MY ~" even from a large number of choices because of the price. But I'm making it "LY ~". <Good point> Unlike "MY ~", the legs for the motion coil are "vertically oriented", points easy for beginners' workers to educate, "few mistakes" on construction . <Points that were bad> ① Because I ordered it with individuals this time, "Restoring one leg, one bent slightly", restoring on site, with a radio pliers. It is exaggerated to say "bad points", it is not a problem. I plan to use it in the future. ② Compared to "MY ~", "Price is high" and "There are few options" points. Apart from expensive prices, I think it would be better to increase the choices. For example, if it is "MY ~", such as "with CR circuit" lineup that is normally taken.
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.