Page top

Global

These are navigation links to move inside this page.

Go to Global Navigation
Go to Local Navigation
Go to Lead Contents
Go to Primary Contents
Go to Related Contents
Go to Site Information

Global Navigation

Lead Contents

General Purpose Relay

LY

A Miniature Power Relay

Data Sheet (331KB)

Inquiry of LY

Related Contents

Quick links to 'LY' page in your country / territory.

Europe
- Austria
- Belgium
- Czech Republic
- Denmark
- Finland
- France
- Germany
- Hungary
- Italy
- Latvia
- Lithuania
- Netherlands
- Norway
- Poland
- Portugal
- Russia
- Spain
- Sweden
- Switzerland
- Turkey
- United Kingdom

Middle East

Please contact our European headquarters.
Africa
- South Africa

Greater China
- China
- Hong Kong
- Taiwan
Asia-Pacific
- Australia
- India
- Indonesia
- Malaysia
- New Zealand
- Philippines
- Singapore
- Thailand
- Vietnam

Japan / Korea
- Japan
- Korea
Americas

Get more support via Products links, such as manuals and CAD files.

Primary Contents

Coil Rating

Single- and Double-pole Relays

Rated voltage		Rated current		Coil Resistance	Coil Induction (reference value)		Must operate voltage	Must release voltage	Max. voltage	Power Consumption (approx.)
Rated voltage		50 Hz	60 Hz	Coil Resistance	Arm. OFF	Arm. ON	% of rated voltage			Power Consumption (approx.)
AC	6 V	214.1 mA	183 mA	12.2 Ω	0.04 H	0.08 H	80% max.	80% max.	110%	1.0 to 1.2 VA (60 Hz)
	12 V	106.5 mA	91 mA	46 Ω	0.17 H	0.33 H
	24 V	53.8 mA	46 mA	180Ω	0.69 H	1.30 H
	50 V	25.7 mA	22 mA	788ΩW	3.22 H	5.66 H
	100/ 110 V	11.7/ 12.9 mA	10/ 11 mA	3,750 Ω	14.54 H	24.6 H				0.9 to 1 VA (60 Hz)
	110/ 120 V	9.9/ 10.8 mA	8.4/ 9.2 mA	4,430 Ω	19.20 H	32.1 H
	200/ 220 V	6.2/ 6.8 mA	5.3/ 5.8 mA	12,950 Ω	54.75 H	94.07 H
	220/ 240 V	4.8/ 5.3 mA	4.2/ 4.6 mA	18,790 Ω	83.50 H	136.40 H
DC	6 V	150 mA		40 Ω	0.16 H	0.33 H		10% min.		0.9 W
	12 V	75 mA		160 Ω	0.73 H	1.37 H
	24 V	36.9 mA		650 Ω	3.20 H	5.72 H
	48 V	18.5 mA		2,600 Ω	10.6 H	21.0 H
	100/ 110 V	9.1/ 10 mA		11,000 Ω	45.6 H	86.2 H

Note:

1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15% ⁄ -20% for rated currents and ±15% for DC coil resistance.

2. Performance characteristic data are measured at a coil temperature of 23°C.

3. AC coil resistance and impedance are provided as reference values (at 60 Hz).

4. Power consumption drop was measured for the above data. When driving transistors, check leakage current and connect a bleeder resistor if required.

Three-pole Relays

Rated voltage		Rated current		Coil Resistance	Coil Induction (reference value)		Must operate voltage	Must release voltage	Max. voltage	Power consumption (approx.)
Rated voltage		50 Hz	60 Hz	Coil Resistance	Arm. OFF	Arm. ON	% of rated voltage			Power consumption (approx.)
AC	6 V	310 mA	270 mA	6.7 Ω	0.03 H	0.05 H	80% max.	30% min.	110%	1.6 to 2.0 VA (60 Hz)
	12 V	159 mA	134 mA	24 Ω	0.12 H	0.21 H
	24 V	80 mA	67 mA	100 Ω	0.44 H	0.79 H
	50 V	38 mA	33 mA	410 Ω	2.24 H	3.87 H
	100/ 110 V	14.1/ 16 mA	12.4/ 13.7 mA	2,300 Ω	10.5 H	18.5 H
	200/ 220 V	9.0/ 10.0 mA	7.7/ 8.5 mA	8,650 Ω	34.8 H	59.5 H
DC	6 V	234 mA		25.7 Ω	0.11 H	0.21 H		10% min.		1.4 W
	12 V	112 mA		107 Ω	0.45 H	0.98 H
	24 V	58.6 mA		410 Ω	1.89 H	3.87 H
	48 V	28.2 mA		1,700 Ω	8.53 H	13.9 H
	100 /110 V	12.7/13 mA		8,500 Ω	29.6 H	54.3 H

Note:

1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15 % ⁄ -20% for rated currents and ±15% for DC coil resistance.

2. Performance characteristic data are measured at a coil temperature of 23°C.

3. AC coil resistance and impedance are provided as reference values (at 60 Hz).

4. Power consumption drop was measured for the above data. When driving transistors, check leakage current and connect a bleeder resistor if required.

Four-pole Relays

Rated voltage		Rated current		Coil Resistance	Coil Induction (reference value)		Must operate voltage	Must release voltage	Max. voltage	Power consumption (approx.)
Rated voltage		50 Hz	60 Hz	Coil Resistance	Arm. OFF	Arm. ON	% of rated voltage			Power consumption (approx.)
AC	6 V	386 mA	330 mA	5 Ω	0.02 H	0.04 H	80% max.	30% min.	110%	1.95 to 2.5 VA (60 Hz)
	12 V	199 mA	170 mA	20 Ω	0.10 H	0.17 H
	24 V	93.6 mA	80 mA	78 Ω	0.38 H	0.67 H
	50 V	46.8 mA	40 mA	350 Ω	1.74 H	2.88 H
	100/ 110 V	22.5/ 25.5 mA	19/ 21.8 mA	1,600 Ω	10.5 H	17.3 H
	200/ 220 V	11.5/ 13.1 mA	9.8/ 11.2 mA	6,700 Ω	33.1 H	57.9 H
DC	6 V	240 mA		25 Ω	0.09 H	0.21 H		10% min.		1.5 W
	12 V	120 mA		100 Ω	0.39 H	0.84 H
	24 V	69 mA		350 Ω	1.41 H	2.91 H
	48 V	30 mA		1,600 Ω	6.39 H	13.6 H
	100/ 110 V	15/15.9 mA		6,900 Ω	32 H	63.7 H

Note:

1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15% ⁄ -20% for rated currents and ±15% for DC coil resistance.

2. Performance characteristic data are measured at a coil temperature of 23°C.

3. AC coil resistance and impedance are provided as reference values (at 60 Hz).

4. Power consumption drop was measured for the above data. When driving transistors, check leakage current and connect a bleeder resistor if required.

Contact Rating

Relay	Single Contact				Bifurcated contacts
	1-pole		2-, 3- or 4-pole		2-pole
Load	Resistive load (cosΦ = 1)	Inductive load (cosΦ = 0.4, L/R = 7 ms)	Resistive load (cosΦ = 1)	Inductive load (cosΦ = 0.4, L/R = 7 ms)	Resistive load (cosΦ = 1)	Inductive load (cosΦ = 0.4, L/R = 7 ms)
Rated Load	110 VAC 15 A 24 VDC 15 A	110 VAC 10 A 24 VDC 7 A	110 VAC 10 A 24 VDC 10 A	110 VAC 7.5 A 24 VDC 5 A	110 VAC 5A 24 VDC 5 A	110 VAC 4 A 24 VDC 4A
Rated Carry Current	15 A		10A		7A
Max. switching voltage	250 VAC 125 VDC		250 VAC 125 VDC		250 VAC 125 VDC
Max. switching current	15 A		10A		7A
Max. switching power	1,700 VA 360 W	1,100 VA 170 W	1,100 VA 240 W	825 VA 120 W	550 VA 120 W	440 VA 100 W
Failure rate (reference value)^*	100 mA, 5 VDC		100 mA, 5 VDC		100 mA, 5 VDC

^*Note: P level: λ60 = 0.1 x 10^-6⁄operation

Characteristics

Item	All except Relays with bifurcated contacts	Relays with bifurcated contacts
Contact resistance	50 mΩ max.
Operate time	25 ms max.
Release time	25 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, 50/60 Hz for 1 min between contacts of same polarity 2,000 VAC, 50/60 Hz for 1 min between contacts of different 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: 200 m/s²
Endurance	Mechanical: AC: 50,000,000 operations min. (at 18,000 operations/hr) DC: 1,00,000,000 operations min. (at 18,000 operations/hr) Electrical: Single-, three-, and four-pole: 200,000 operations min. (at 1,800 operations/hr under rated load) Double-pole: 500,000 operations min. (at 1,800 operations/hr under rated load)
Ambient temperature^*	Operating: Single- and double-pole standard, bifurcated-contact Relays: -25°C to 55°C (with no icing) (-25°C to 70°C if carry current is 4 A or less) All other Relays: -25°C to 40°C (with no icing) (-25°C to 55°C if carry current is 4 A or less)
Ambient humidity	Operating: 5% to 85%
Weight	Single- and double-pole: approx. 40 g, three-pole: approx. 50 g, four-pole: approx. 70 g

Note:

1. The values given above are initial values

2. The upper limit of 40°C for some Relays is because of the relationship between diode junction temperature and the element used.

Endurance Under Real Loads (reference only)

LY1

Rated voltage	Load type	Conditions	Operating frequency	Electrical life
100 VAC	AC motor	400 W, 100 VAC single-phase with 35-A inrush current, 7-A current flow	ON for 10 s, OFF for 50 s	50,000 operations
	AC lamp	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	100,000 operations
	AC lamp	500 W, 100 VAC with 78-A inrush current, 5-A current flow	ON for 5 s, OFF for 55 s	25,000 operations
	Capacitor (2,000 μF)	24 VDC with 50-A inrush 1-A current flow	ON for 1 s, OFF for 6 s	100,000 operations
	AC solenoid	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	1,500,000 operations
	AC solenoid	100 VA with 5-A inrush current, 0.5-A current flow	ON for 1 s, OFF for 2 s	800,000 operations

LY2

Rated voltage	Load type	Conditions	Operating frequency	Electrical life
100 VAC	AC motor	200 W, 100 VAC single-phase with 25-A inrush current, 5-A current flow	ON for 10 s, OFF for 50 s	200,000 operations
	AC lamp	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	80,000 operations
	Capacitor (2,000 μF)	24 VDC with 50-A inrush current, 1-A current flow	ON for 1 s, OFF for 15 s	10,000 operations
	Capacitor (2,000 μF)	24 VDC with 20-A inrush current, 1-A current flow	ON for 1 s, OFF for 15 s	150,000 operations
	AC solenoid	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	1,000,000 operations
	AC solenoid	100 VA with 5-A inrush current, 0.5-A current flow	ON for 1 s, OFF for 2 s	500,000 operations

LY4

Rated voltage	Load type	Conditions	Operating frequency	Electrical life
100 VAC	AC motor	200 W, 200 VAC triple-phase with 5-A inrush current, 1-A current flow	ON for 10 s, OFF for 50 s	500,000 operations
	AC motor	750 W, 200 VAC triple-phase with 18-A inrush current, 3.5 A current flow	ON for 10 s, OFF for 50 s	70,000 operations
	AC lamp	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	50,000 operations
	Capacitor (2,000 μF)	24 VDC with 50-A inrush current, 1-A current flow	ON for 1 s, OFF for 15 s	5,000 operations
	Capacitor (2,000 μF)	24 VDC with 20-A inrush current, 1-A current flow	ON for 1 s, OFF for 2 s	200,000 operations
	AC solenoid	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	1,000,000 operations
	AC solenoid	100 VA with 5-A inrush current, 0.5-A current flow	ON for 1 s, OFF for 2 s	500,000 operations

Caution: In the interenst of product improvement, specifications are subject to change without notice.

Local Navigation

Relays

General Purpose Relays
- For Control Panel
  - MY
  - LY
  - G2R-[]-S
  - G7T
  - G2A
  - G2A-434
  - G2AK
  - MK-S
  - MK-S(X)
  - MK-I / -S
  - MM
  - MMK
- For Built-in
- Special-purpose

Top of page