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General Purpose Relay For Control Panel LY Type

 
 
 

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Feature :

 

Equipped with arc barrier.

Dielectric strength: 2,000 V.

Built-in diode models added to the LY Series.

Single-pole and double-pole models are applicable to operating coils with ratings of 100 ⁄ 110 VAC, 110 ⁄ 120 VAC, 200 ⁄ 220 VAC, 220 ⁄ 240 VAC, or 100 ⁄ 110 VDC.

Three-pole and four-pole models are applicable to operating coils with ratings of 100 ⁄ 110 VAC, 200 ⁄ 220 VAC, or 100 ⁄ 110 VDC.

 

 

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.)
50 Hz 60 Hz Arm. OFF Arm. ON % of rated voltage
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.)
50 Hz 60 Hz Arm. OFF Arm. ON % of rated voltage
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.)
50 Hz 60 Hz Arm. OFF Arm. ON % of rated voltage
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
500 W, 100 VAC with 78-A
inrush current, 5-A current flow
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
100 VA with 5-A inrush current,
0.5-A current flow
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
24 VDC with 20-A inrush current,
1-A current flow
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
100 VA with 5-A inrush current,
0.5-A current flow
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
750 W, 200 VAC triple-phase with
18-A inrush current, 3.5 A current flow
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
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
100 VA with 5-A inrush current,
0.5-A current flow
500,000 operations