• Equipped with an arc barrier for arc interruption.
• Withstand voltages up to 2,000 V.
• New built-in diode and built-in CR circuit models have
joined the series.
• The lineup also includes models that are compliant
with the LR and VDE safety standards.
• Single-pole and double-pole models have AC4
ratings and DC2 ratings (operating coil ratings: 100/
110 VAC, 110/120 VAC, 200/220 VAC, 220/240 VAC,
and 100/110 VDC).
• Three-pole and four-pole models have AC4 ratings
and DC2 ratings (operating coil ratings: 100/110
VAC, 200/220 VAC and 100/110 VDC).
Refer to the
Common Relay Precautions.
Refer to the standards certifications and compliance section of your
OMRON website for the latest information on certified models.
Model Number Structure
Relays with Plug-in Terminals
Structure
Number
of poles
1
Standard models
Compliance with
Electrical Appliances
and Material Safety Act
2
3
4
Models with diode for
coil surge absorption
(DC coil specification
only)
1
2
3
4
Models with CR circuits
for coil surge
absorption
(AC coil specification
only)
1
Bifur-
cated
Relays with PCB Terminals
Case-surface mounting
Classification
With operation indicators
*LY1
*LY2
**LY2Z
*LY3
*LY4
**LY1-D
**LY2-D
Bifur-
cated
**LY1N
**LY2N
**LY2ZN
**LY3N
**LY4N
**LY1N-D2
**LY2N-D2
**LY2ZN-D2
**LY3N-D2
**LY4N-D2
---
**LY2N-CR
**LY2ZN-CR
*LY1-0
*LY2-0
**LY2Z-0
*LY3-0
*LY4-0
---
---
---
---
---
*LY1F
*LY2F
**LY2ZF
*LY3F
*LY4F
---
---
---
---
---
**LY2Z-D
**LY3-D
**LY4-D
---
**LY2-CR
2
Bifur-
cated
**LY2Z-CR
Note: 1.
Cells with a diagonal line cannot be manufactured. Ask your OMRON representative for details on manufacturing products for cells
containing “---” in the above table.
2.
If #187 tab terminals are required, use the LY1F-T2 or LY2F-T2 (single-pole or double-pole models only).
3.
Refer to page 12 for information on plug-in terminal and socket combinations.
4.
Items with an asterisk (*) in the table are certified for UL, CSA, and SEV. This is indicated with a certification mark on the products.
5.
Items with two asterisks (**) in the table are certified for UL and CSA. This is indicated with a certification mark on the products.
6.
All models in the table are certified for IEC (TÜV).
7.
The models with plug-in terminals (single-pole, double-pole, and 4-pole) were combined with the PTF-E for the EC Declaration of
Conformity. These products display the CE Marking.
1
LY
Ordering Information
Models with Plug-in Terminals
Number of poles
Classification
Model
When your order, specify the rated voltage.
Standard models
LY1
Models with built-in
operation indicators
Models with
single
Models with built-in
contacts
diodes
Models with built-in
diodes and
operation indicators
Models with built-in
CR circuits
Models with built-in
CR circuits and
operation indicators
Standard models
LY1N
LY1-D
LY1N-
D2
---
1 pole
Rated voltage (V)
12, 24, 100/110,
110/120,
or 200/220 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 100/110,
110/120,
or 200/220 VAC
12, 24,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
12, 24, or 48 VDC
Model
LY2
LY2N
LY2-D
LY2N-D2
2 poles
Rated voltage (V)
12, 24, 100/110,110/
120, 200/220,
or220/240 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 100/110,110/
120, 200/220,
or 220/240 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
100/110, 110/120,
200/220, or 220/240
VAC
100/110, 110/120,
200/220, or 220/240
VAC
100/110 or200/220
VAC
12, 24, 48, or 100/
110 VDC
100/110,
110/120,
200/220,
or 220/240 VAC
12 or 24 VDC
12, 24, or 48 VDC
12, 24, or 100/110
VDC
100/110 VAC
100, 110, 110/1 20,
or 200/220 VAC
Model
3 poles
Rated voltage (V)
12, 24, 100/110, or
200/220 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 100/110, or
200/220 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
12, 24,
or 100/110 VDC
---
Model
4 poles
Rated voltage (V)
12, 24, 100/110, or
200/220 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 100/110, or
200/220 VAC
12, 24, 48,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
12, 24, 48,
or 100/110 VDC
---
LY3
LY4
LY3N
LY4N
LY3-D
LY3N-
D2
---
LY4-D
LY4N-
D2
---
---
LY2-CR
---
---
---
---
---
LY2N-CR
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
LY2Z
---
---
---
---
---
---
---
LY2Z-D
LY2ZN-
D2
LY2Z-CR
LY2ZN-
CR
Models with built-in
operation indicators
Bifurcated
contacts
Models with built-in
diodes
Models with built-in
diodes and
operation indicators
Models with built-in
CR circuits
Models with built-in
CR circuits and
operation indicators
---
---
---
---
---
---
LY2ZN
Relays with PCB Terminals
Number of poles
Classification
Models with single
contacts
Model
1 pole
Rated voltage (V)
24,100/110,
110/120, or 200/220
VAC
12 or 24 VDC
Bifurcated contacts
---
---
LY2Z-0
Model
2 poles
Rated voltage (V)
12, 24,
100/110, 110/120, 200/
220, or 220/240 VAC
12, 24, 48
or 100/110 VDC
100/110 VAC
24, 48, or
100/110 VDC
Model
3 poles
Rated voltage (V)
24, 100/110,
or 200/220 VAC
12, 24, 48, or
100/110 VDC
---
---
---
Model
4 poles
Rated voltage (V)
24, 100/110, or 200/
220 VAC
12, 24, 48, or
100/110 VDC
---
---
LY1-0
LY2-0
LY3-0
LY4-0
Case-surface Mounting
Number of poles
Classification
Models with single
contacts
Model
1 pole
Rated voltage (V)
24, 100/110,
110/120, 200/220,
or 220/240 VAC
6, 12, 24, or 100/110
VDC
---
Model
2 poles
Rated voltage (V)
12, 24, 100/110, 110/
120, 200/220,
or 220/240 VAC
12, 24, 48, or 100/110
VDC
24, 100/110,
or 200/220 VAC
12 or 24 VDC
Model
3 poles
Rated voltage (V)
12, 24, 100/110,
or 200/220 VAC
12, 24, or 100/110 VDC
Model
4 poles
Rated voltage (V)
12, 24, 100/110,
or 200/220 VAC
12, 24, or 100/110
VDC
---
---
LY1F
LY2F
LY3F
LY4F
Bifurcated contacts
---
LY2ZF
---
---
2
LY
Ratings and Specifications
Ratings
Standard Models with Built-in Operation Indicators
Operating Coil, Single-pole and Double-pole Models
Item
Rated voltage
(V)
12
24
50
AC
100/110
110/120
200/220
220/240
6
12
DC
24
48
100/110
Rated current (mA)
50 Hz
60Hz
Coil
resistance
(Ω)
Coil inductance (H)
Armature
OFF
Must-operate
voltage (V)
Armature ON
Must-release
voltage (V)
Maximum
voltage (V)
Power
consumption
(VA, W)
106.5
53.8
25.7
11.7/12.9
9.9/10.8
6.2/6.8
4.8/5.3
150
75
36.9
18.5
9.1/10
91
46
22
10/11
8.4/9.2
5.3/5.8
4.2/4.6
46
180
788
3,750
4,430
12,950
18,790
40
160
650
2,600
11,000
0.17
0.69
3.22
14.54
19.2
54.75
83.5
0.16
0.73
3.2
10.6
45.6
0.33
1.3
5.66
24.6
32.1
94.07
136.4
0.33
1.37
5.72
21.0
86.2
10% min.
*2
80% max.
*1
110% of
rated
voltage
30% min.
*2
Approx. 1.0
to 1.2
(at 60 Hz)
Approx. 0.9
to 1.1
(at 60 Hz)
Approx. 0.9
3 poles
Item
Rated voltage
(V)
12
24
AC
100/110
200/220
12
24
DC
48
100/110
Rated current (mA)
50 Hz
60Hz
Coil
resistance
(Ω)
Coil inductance (H)
Armature
OFF
Must-operate
voltage (V)
Armature ON
Must-release
voltage (V)
Maximum
voltage (V)
Power
consumption
(VA, W)
159
80
14.1/16
9.0/10.0
112
58.6
28.2
12.7/13
134
67
12.4/13.7
7.7/8.5
24
100
2,300
8,650
107
410
1,700
8,500
0.12
0.44
10.5
34.8
0.45
1.89
8.53
29.6
0.21
0.79
18.5
59.5
0.98
3.87
13.9
54.3
80% max.
*1
10% min.
*2
30% min.
*2
110% of
rated
voltage
Approx. 1.4
Approx. 1.6
to 2.0
(at 60 Hz)
4 poles
Item
Rated voltage
(V)
12
24
AC
100/110
200/220
12
24
DC
48
100/110
Rated current (mA)
50 Hz
60Hz
Coil
resistance
(Ω)
Coil inductance (H)
Armature
OFF
Must-operate
voltage (V)
Armature ON
Must-release
voltage (V)
Maximum
voltage (V)
Power
consumption
(VA, W)
199
93.6
22.5/25.5
11.5/13.1
120
69
30
15/15.9
170
80
19/21.8
9.8/11.2
20
78
1,800
6,700
100
350
1,600
6,900
0.1
0.38
10.5
33.1
0.39
1.41
6.39
32.0
0.17
0.67
17.3
57.9
0.84
2.91
13.6
63.7
80% max.
*1
10% min.
*2
30% min.
*2
110% of
rated
voltage
Approx. 1.5
Approx.
1.95 to 2.5
(at 60 Hz)
Note: 1.
The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for the AC rated current and ±15% for the
DC coil resistance.
2.
The AC coil resistance and inductance values are reference values only. (at 60 Hz).
3.
Operating characteristics were measured at a coil temperature of 23°C.
4.
The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1.
There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value (at a coil temperature of +23° C).
*2.
The actual values are 30% min. for AC and 10% min. for DC. To ensure release, use a value that is lower than the specified value.
3
LY
Refer to
List of Certified Models
for a list of models that are certified for safety standards and the Electrical Appliances
and Material Safety Act.
Classification
Item
Contact type
Contact materials
Rated load
Rated carry current
Maximum contact voltage
Maximum contact current
Type
Item
Single-pole and double-pole models
(standard models and bifurcated contact
models)
−25
to 55°C
(with no icing or condensation)
*1
5% to 85%
15 A
15 A at 110 VAC
15 A at 24 VDC
Load
Resistive load
Double-, 3-, and 4-pole models
Inductive load
Inductive load
Resistive load
(cos
φ
= 0.4, L/R = 7 ms)
(cos
φ
= 0.4, L/R = 7 ms)
Single
Ag alloy
10 A at 110 VAC
10 A at 110 VAC
7.5 A at 110 VAC
7 A at 24 VDC
10 A at 24 VDC
5 A at 24 VDC
15 A
10 A
250 VAC
250 VAC
125 VDC
125 VDC
15 A
10 A
10 A
Single-pole, double-pole models
(models with built-in operation indicators, models
with built-in diodes, and models with built-in CR
circuits),
3-pole and 4-pole models
−25
to +40°C
(with no icing or condensation)
*2
Note:
1.
1 pole
Bifurcated contacts
Inductive load
Resistive load
(cos
φ
= 0.4, L/R = 7 ms)
Bifurcated
Ag
5 A at 110 VAC
4 A at 110 VAC
5 A at 24 VDC
4 A at 24 VDC
7A
250 VAC
125 VDC
7A
7A
Ambient operating
temperature
Ambient operating
humidity
Some models in the LY1 and LY2 Series have an upper
temperature limit of +40°C. This limitation is due to the
diode junction temperature and the elements used.
2.
Refer to
Ambient Temperature vs. Coil Temperature
Rise
in
Engineering Data
on page 5 to 6 for information
on operation in temperature conditions that are not
described here.
3.
When you apply a minimum of 10 A of current to an LY1
when it is used in combination with a PTF08A, PTF08A-
E, or PT08, connect each of the following terminal pairs:
(1) to (2), (3) to (4), and (5) to (6).
*1.
If the carry current is 4 A or less, the usable ambient temperature
range is
−25
to 70° C.
*2.
If the flowing current is 4 A or less, the usable ambient
temperature range is -25 to 55° C.
Characteristics
Type
Item
Contact resistance
*1
Operating time
*2
Release time
*2
Maximum
Mechanical
operating
Rated load
frequency
Insulation resistance
*3
Between coil and contacts
Between contacts of
Dielectric
different polarity
strength
Between contacts of the
same polarity
Destruction
Vibration
resistance
Malfunction
Destruction
Shock
resistance
Malfunction
Mechanical
Endurance
Electrical
*4
Failure rate P value (reference value)
*5
Weight
Standard models, models with built-in operation
indicators, models with built-in CR circuits, and
models with built-in diodes
50 mΩ max.
25 ms max.
25 ms max.
18,000 operations/h
1,800 operations/h
100 MΩ min.
2,000 VAC at 50/60 Hz for 1 min.
1,000 VAC at 50/60 Hz for 1 min.
10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
1,000 m/s
2
200 m/s
2
AC: 50,000,000 operations min.
(switching frequency: 18,000
DC: 100,000,000 operations min.
operations/h)
1-, 3-, 4-pole: 200,000 operations min.
2-pole: 500,000 operations min.
2-pole: 500,000 operations min.
(rated load, operating frequency: 1,800
(rated load, operating frequency: 1,800
operations/h)
operations/h)
100 mA at 5 VDC
10mA at 5 VDC
1-pole and 2-pole: 40 g, 3-pole: Approx. 50 g, 4-pole: Approx. 70 g
Bifurcated contacts
Note:
The values at the left are initial values.
*1.
Measurement conditions: 1 A at 5 VDC using the voltage
drop method
*2.
Measurement conditions: With rated operating power
applied, not including contact bounce.
Ambient temperature condition: 23° C
*3.
Measurement conditions: For 500 VDC applied to the
same location as for dielectric strength measurement.
*4.
Ambient temperature condition: 23° C
*5.
This value was measured at a switching frequency of 120
