General Purpose Relay
LY
• Arc barrier equipped.
• High dielectric strength (2,000 VAC).
• Long dependable service life assured by Ag-Alloy contacts.
• Choose models with single or bifurcated contacts,
LED indicator, diode surge suppression,
push-to-test button, or RC circuit.
• All models meet UL and CSA
approvals; VDE, LR, and SEV
approved versions are available.
Ordering Information
To Order: Select the part number and add the desired coil voltage rating (e.g., LY1-
DC6).
Type
Terminal
Contact
form
Standard
bracket
mounting
Standard
Plug-in/solder
SPDT
DPDT
3PDT
4PDT
PCB
SPDT
DPDT
3PDT
4PDT
LED indicator
Plug-in/solder
SPDT
DPDT
3PDT
4PDT
Diode surge
suppression
SPDT
DPDT
3PDT
4PDT
LED indicator
and diode surge
suppression
RC circuit
LED indicator
and RC circuit
SPDT
DPDT
4PDT
SPDT
DPDT
SPDT
DPDT
LY1
LY2
LY3
LY4
LY1-0
LY2-0
LY3-0
LY4-0
LY1N
LY2N
LY3N
LY4N
LY1-D
LY2-D
LY3-D
LY4-D
LY1N-D2
LY2N-D2
LY4N-D2
LY1-CR
LY2-CR
LY1N-CR
LY2N-CR
Model
Single contact
Upper
mounting
bracket
LY1F
LY2F
LY3F
LY4F
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Lower
mounting
bracket
LY1S
LY2S
LY3S
LY4S
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bifurcated contact
Standard
bracket
mounting
—
LY2Z
—
—
—
LY2Z-0
—
—
—
LY2ZN
—
—
—
LY2Z-D
—
—
—
LY2ZN-D2
—
—
LY2Z-CR
—
LY2ZN-CR
Upper
mounting
bracket
—
LY2ZF
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Lower
mounting
bracket
—
LY2ZS
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Note: 1.
Types with specifications other than those listed are available. Contact your Omron Sales representative.
2.
To order connecting sockets and mounting tracks, see “Accessories” section.
718
General Purpose Relay
LY
Type
Terminal
Contact
form
Standard
bracket
mounting
Model
Single contact
Upper
mounting
bracket
—
—
—
—
—
—
Lower
mounting
bracket
—
—
—
—
—
—
Bifurcated contact
Standard
bracket
mounting
—
LY2Zl2
—
—
LY2Zl2N
—
Upper
mounting
bracket
—
—
—
—
—
—
Lower
mounting
bracket
—
—
—
—
—
—
Push-to-test
button
Plug-in/solder
SPDT
DPDT
3PDT
4PDT
LY1l4
LY2l4
LY3l4
LY4l4
LY2l4N
LY4l4N
LED indicator and
push-to-test button
Plug-in/solder
DPDT
4PDT
Note: 1.
Types with specifications other than those listed are available. Contact your Omron Sales representative.
2.
To order connecting sockets and mounting tracks, see “Accessories” section.
I
Accessories
Connecting Sockets
To Order: Select the appropriate part numbers for sockets, clips, and mounting tracks (if required) from the following charts.
Track Mounted Sockets
Relay
SPDT
DPDT
3PDT
4PDT
PTF11A
PTF14A-E
Socket*
PTF08A-E
PYC-A1
Relay hold-down clip
Standard
Y92H-3
RC circuit
PFP-100N/PFP-50N
&
PFP-M
or
PFP-100N2
PFP-S
(Option spacer)
Mounting track
* Track mounted socket can be used as a front connecting socket.
Back Connecting Sockets
Relay
Solder
terminal
socket
PT08
PT11
PT14
Wire wrap
terminal
socket
PT08QN
PT11QN
PT14QN
Relay hold-down clip
Standard
PYC-P
Push-to-test
PYC-P2
RC circuit
PYC-1
Mtg. plate
PYC-S
1
PYP-1
PTP-1-3
PTP-1
–
–
PTP-10
Socket Mounting Plate
10
–
PTP-12
–
12
18
PYP-18
–
–
SPDT
DPDT
3PDT
4PDT
Note:
Types PYP-18, PTP-12 and PTP-10 may be cut to any desired length.
Relay
SPDT
DPDT
3PDT
4PDT
PT11-0
PT14-0
PC terminal socket
Standard
PT08-0
PYC-P
Relay hold-down clip
Push-to-test
PYC-P2
PYC-1
RC circuit
General Purpose Relay
LY
719
Specifications
I
Contact Data
Load
SPDT
Resistive load
(p.f. = 1)
Rated load
Contact material
Carry current
Max. operating
voltage
Max. operating
current
Max. switching
capacity
Min. permissible
load
15 A at 110 VAC
15 A at 24 VDC
Ag-Alloy
15 A
250 VAC
125 VDC
15 A
1,700 VA
360 W
100 mA, 5 VDC
1,100 VA
170 W
10 A
1,100 VA
240 W
830 VA
120 W
7A
550 VA
120 W
10 mA, 5 VDC
440 VA
100 W
10 A
7A
Inductive load
(p.f. = 0.4)
(L/R = 7 ms)
10 A at 110 VAC
7 A at 24 VDC
Single contact
DPDT, 3PDT, 4PDT
Resistive load
(p.f. = 1)
10 A at 110 VAC
10 A at 24 VDC
Inductive load
(p.f. = 0.4)
(L/R = 7 ms)
7.5 A at 110 VAC
5 A at 24 VDC
Bifurcated contact
DPDT
Resistive load
(p.f. = 1)
5 A at 110 VAC
5 A at 24 VDC
Inductive load
(p.f. = 0.4)
(L/R = 7 ms)
4 A at 110 VAC
4 A at 24 VDC
I
Coil Data
1- and 2-pole Types – AC
Rated
voltage (V)
Rated current (mA)
50 Hz
6
12
24
50
100/110
110/120
200/220
220/240
214.10
106.50
53.80
25.70
11.70/12.90
9.90/10.80
6.20/6.80
4.80/5.30
60 Hz
183
91
46
22
10/11
8.40/9.20
5.30/5.80
4.20/4.60
Coil
resistance
(Ω)
12.20
46
180
788
3,750
4,430
12,950
18,790
Coil inductance
(ref. value) (H)
Armature
OFF
0.04
0.17
0.69
3.22
14.54
19.20
54.75
83.50
Armature
ON
0.08
0.33
1.30
5.66
24.60
32.10
94.07
136.40
Approx.
0.90 to 1.10
(60 Hz)
Pick-up
voltage
Dropout
voltage
Maximum
voltage
(% of rated voltage)
80% max.
30% min.
110%
Power
consumption
(VA, W)
Approx.
1.00 to 1.20
(60 Hz)
1- and 2-pole Types – DC
Rated
voltage (V)
Rated current (mA)
Coil
resistance
(Ω)
Coil inductance
(ref. value) (H)
Armature
OFF
6
12
24
48
100/110
150
75
36.90
18.50
9.10/10
40
160
650
2,600
11,000
0.16
0.73
3.20
10.60
45.60
Armature
ON
0.33
1.37
5.72
21
86.20
Pick-up
voltage
Dropout
voltage
Maximum
voltage
Power
consumption
(VA, W)
(% of rated voltage)
80% max.
10% min.
110%
Approx.
0.90
Note: 1.
The rated current and coil resistance are measured at a coil temperature of 23°C (73°F) with tolerances of +15%, -20% for AC rated
current, and ±15% for DC rated coil resistance.
2.
The AC coil resistance and inductance are reference values at 60 Hz.
3.
The performance characteristics are measured at a coil temperature of 23°C (73°F).
4.
Class B coil insulation is available.
720
General Purpose Relay
LY
3-pole Type – AC
Rated
voltage (V)
Rated current (mA)
Coil
resistance
(Ω)
Coil inductance
(ref. value) (H)
Armature
OFF
6.70
24
100
410
2,450
8,650
10,400
0.03
0.12
0.44
2.24
10.50
11.50
34.80
38.60
Armature
ON
0.05
0.21
0.79
3.87
18.50
20.60
59.50
74.60
80% max.
Pick-up
voltage
Dropout
voltage
Maximum
voltage
Power
consumption
(VA, W)
50 Hz
6
12
24
50
100/110
120
200/220
240
310
159
80
38
17.30
9.40
60 Hz
270
134
67
33
14.8
8
(% of rated voltage)
30% min.
110%
Approx.
1.60 to 2.00
(60 Hz)
15.90/18.30 13.60/15.60 2,300
10.50/11.60 9.00/9.90
3-pole Type – DC
Rated
voltage
(V)
6
12
24
48
100/110
Rated current (mA)
Coil
resistance
(Ω)
25.70
107
410
1,700
8,500
Coil inductance
(ref. value) (H)
Armature
OFF
0.11
0.45
1.89
8.53
29.60
Armature
ON
0.21
0.98
3.87
13.90
54.30
80% max.
Pick-up
voltage
Dropout
voltage
(% of rated voltage)
10% min.
110%
Maximum
voltage
Power
consumption
(VA, W)
Approx.
1.40
234
112
58.60
28.20
12.70/13
4-pole Type – AC
Rated
voltage (V)
Rated current (mA)
50 Hz
6
12
24
50
100/110
120
200/220
240
386
199
93.60
46.80
19.00
11.00
60 Hz
330
170
80
40
16.40
9.50
Coil
resistance
(Ω)
5
20
78
350
1,800
2,200
6,700
9,000
Coil inductance
(ref. value) (H)
Armature
OFF
0.02
0.10
0.38
1.74
10.50
9.30
33.10
33.20
Armature
ON
0.04
0.17
0.67
2.88
17.30
19
57.90
63.40
80% max.
Pick-up
voltage
Dropout
voltage
(% of rated voltage)
30% min.
110%
Maximum
voltage
Power
consumption
(VA, W)
Approx.
1.95 to 2.50
(60 Hz)
22.50/25.50 19/21.80
11.50/13.10 9.80/11.20
4-pole Type – DC
Rated
voltage (V)
Rated current (mA)
Coil
resistance
(Ω)
Coil inductance
(ref. value) (H)
Armature
OFF
6
12
24
48
100/110
240
120
69
30
15/15.90
25
100
350
1,600
6,900
0.09
0.39
1.41
6.39
32
Armature
ON
0.21
0.84
2.91
13.60
63.70
80% max.
Pick-up
voltage
Dropout
voltage
(% of rated voltage)
10% min.
110%
Approx.
1.50
Maximum
voltage
Power
consumption
(VA, W)
Note: 1.
The rated current and coil resistance are measured at a coil temperature of 23°C (73°F) with tolerances of +15%, -20% for AC rated
current, and ±15% for DC rated coil resistance.
2.
The AC coil resistance and inductance are reference values at 60 Hz.
3.
The performance characteristics are measured at a coil temperature of 23°C (73°F).
4.
Class B coil insulation is available.
General Purpose Relay
LY
721
I
Characteristics
Contact resistance
Operate time
Release time
Operating frequency
Insulation resistance
Dielectric strength
Vibration
Shock
Ambient temperature
Humidity
Service Life
Mechanically
Electrically
Weight
Mechanical durability
Malfunction durability
Mechanical durability
Malfunction durability
Operating
Mechanically
Under rated load
50 mΩ max.
25 ms max.
25 ms max.
18,000 operations/hour
1,800 operations/hour
100 MΩ min. (at 500 VDC)
2,000 VAC, 50/60 Hz for 1 minute
1,000 VAC, 50/60 Hz for 1 minute between contacts of same polarity
10 to 55 Hz, 1.00 mm (0.04 in) double amplitude
10 to 55 Hz, 1.00 mm (0.04 in) double amplitude
1,000 m/s
2
(approx. 100 G)
200 m/s
2
(approx. 20 G)
-40° to 70°C (-40° to 158°F) (over 4A carry currents 55°C max.)
35 to 85% RH
AC: 50 million operations min. (at operating frequency of 18,000 operations/hour)
DC: 100 million operations min. (at operating frequency of 18,000 operations/hour)
See “Characteristic Data”
SPDT, DPDT: Approx. 40 g (1.41 oz), 3PDT: Approx. 50 g (1.76 oz)
4PDT: Approx. 70 g (2.47 oz)
Note:
Data shown are of initial value.
I
Characteristic Data
Maximum switching capacity
LY1
Rated operating current (A)
LY2
Rated operating current (A)
LY3, LY4
Rated operating current (A)
Rated operating current (A)
Rated operating voltage (V)
LY2Z
Rated operating voltage (V)
Rated operating voltage (V)
Rated operating voltage (V)
Electrical service life
LY1
Service Life (X10
6
operations)
LY2
Service Life (X10
6
operations)
LY3, LY4
Service Life (X10
6
operations)
LY2Z
Service Life (X10
6
operations)
Switching current (A)
Switching current (A)
Switching current (A)
Switching current (A)
722
General Purpose Relay
LY
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