OMRON LY lineup

last update: January 15, 2018

Model Number Structure

Structure			Relays with Plug-in Terminals		Relays with PCB Terminals	Case-surface mounting
Classification	Number of poles			With operation indicators
Standard models Compliance with Electrical Appliances and Material Safety Act	1		*LY1	**LY1N	*LY1-0	*LY1F
	2		*LY2	**LY2N	*LY2-0	*LY2F
		Bifur- cated	**LY2Z	**LY2ZN	**LY2Z-0	**LY2ZF
	3		*LY3	**LY3N	*LY3-0	*LY3F
	4		*LY4	**LY4N	*LY4-0	*LY4F
Models with diode for coil surge absorption (DC coil specification only)	1		**LY1-D	**LY1N-D2	---	---
	2		**LY2-D	**LY2N-D2	---	---
		Bifur- cated	**LY2Z-D	**LY2ZN-D2	---	---
	3		**LY3-D	**LY3N-D2	---	---
	4		**LY4-D	**LY4N-D2	---	---
Models with CR circuits for coil surge absorption(AC coil specification only)	1		---	---
	2		**LY2-CR	**LY2N-CR
		Bifur- cated	**LY2Z-CR	**LY2ZN-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 Catalog 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.

Ordering Information

When your order, specify the rated voltage.

Models with Plug-in Terminals

Number of poles		1 pole		2 poles
Classification		Model	Rated voltage (V)	Model	Rated voltage (V)
Models with single contacts	Standard models	LY1	12, 24, 100/110, 110/120, or 200/220 VAC	LY2	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
	Models with built-in operation indicators	LY1N	12, 24, 100/110, 110/120, or 200/220 VAC	LY2N	12, 24, 100/110, 110/120, 200/220, or 220/240 VAC
			12, 24, or 100/110 VDC		12, 24, 48, or 100/110 VDC
	Models with built-in diodes	LY1-D	12, 24, 48, or 100/110 VDC	LY2-D	12, 24, 48, or 100/110 VDC
	Models with built-in diodes and operation indicators	LY1N-D2	12, 24, or 48 VDC	LY2N-D2	12, 24, 48, or 100/110 VDC
	Models with built-in CR circuits	---	---	LY2-CR	100/110, 110/120, 200/220, or 220/240 VAC
	Models with built-in CR circuits and operation indicators	---	---	LY2N-CR	100/110, 110/120, 200/220, or 220/240 VAC
Bifurcated contacts	Standard models	---	---	LY2Z	100/110 or200/220 VAC
		---	---		12, 24, 48, or 100/110 VDC
	Models with built-in operation indicators	---	---	LY2ZN	100/110, 110/120, 200/220, or 220/240 VAC
		---	---		12 or 24 VDC
	Models with built-in diodes	---	---	LY2Z-D	12, 24, or 48 VDC
	Models with built-in diodes and operation indicators	---	---	LY2ZN-D2	12, 24, or 100/110 VDC
	Models with built-in CR circuits	---	---	LY2Z-CR	100/110 VAC
	Models with built-in CR circuits and operation indicators	---	---	LY2ZN-CR	100, 110, 110/120, or 200/220 VAC

Number of poles		3 poles		4 poles
Classification		Model	Rated voltage (V)	Model	Rated voltage (V)
Models with single contacts	Standard models	LY3	12, 24, 100/110, or 200/220 VAC	LY4	12, 24, 100/110, or 200/220 VAC
			12, 24, 48, or 100/110 VDC		12, 24, 48, or 100/110 VDC
	Models with built-in operation indicators	LY3N	12, 24, 100/110, or 200/220 VAC	LY4N	12, 24, 100/110, or 200/220 VAC
			12, 24, 48, or 100/110 VDC		12, 24, 48, or 100/110 VDC
	Models with built-in diodes	LY3-D	12, 24, 48, or 100/110 VDC	LY4-D	12, 24, 48, or 100/110 VDC
	Models with built-in diodes and operation indicators	LY3N-D2	12, 24, or 100/110 VDC	LY4N-D2	12, 24, 48, or 100/110 VDC
	Models with built-in CR circuits	---	---	---	---
	Models with built-in CR circuits and operation indicators	---	---	---	---
Bifurcated contacts	Standard models	---	---	---	---
		---	---	---	---
	Models with built-in operation indicators	---	---	---	---
		---	---	---	---
	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	---	---	---	---

Relays with PCB Terminals

Number of poles	1 pole		2 poles		3 poles		4 poles
Classification	Model	Rated voltage (V)	Model	Rated voltage (V)	Model	Rated voltage (V)	Model	Rated voltage (V)
Models with single contacts	LY1-0	24,100/110, 110/120, or 200/220 VAC	LY2-0	12, 24, 100/ 110, 110/120, 200/220, or 220/240 VAC	LY3-0	24, 100/110, or 200/220 VAC	LY4-0	24, 100/110, or 200/ 220 VAC
		12 or 24 VDC		12, 24, 48 or 100/110 VDC		12, 24, 48, or 100/110 VDC		12, 24, 48, or 100/110 VDC
Bifurcated contacts	---	---	LY2Z-0	100/110 VAC	---	---	---	---
				24, 48, or 100/110 VDC

Case-surface Mounting

Number of poles	1 pole		2 poles		3 poles		4 poles
Classification	Model	Rated voltage (V)	Model	Rated voltage (V)	Model	Rated voltage (V)	Model	Rated voltage (V)
Models with single contacts	LY1F	24, 100/110, 110/120, 200/ 220, or 220/ 240 VAC	LY2F	12, 24, 100/ 110, 110/120, 200/220, or 220/240 VAC	LY3F	12, 24, 100/ 110, or 200/ 220 VAC	LY4F	12, 24, 100/ 110, or 200/ 220 VAC
		6, 12, 24, or 100/110 VDC		12, 24, 48, or 100/110 VDC		12, 24, or 100/110 VDC		12, 24, or 100/110 VDC
Bifurcated contacts	---	---	LY2ZF	24, 100/110, or 200/220 VAC	---	---	---	---
				12 or 24 VDC

Accessories (Order Separately)

Connection Sockets

Connecting method	Mounting method	Number of poles	Model
Front-mounting Sockets (PTA[])	Track or screw mounting	1 or 2	PTF08A
			PTF08A-E *1
		3	PTF11A
		4	PTF14A
			PTF14A-E *1
Back-mounting Sockets (PT[])	Solder terminals	1 or 2	PT08 *2
		3	PT11 *2
		4	PT14 *2
	Wrapping terminals	1 or 2	PT08QN
		3	PT11QN
		4	PT14QN
	Relays with PCB Terminals	1 or 2	PT08-0
		3	PT11-0
		4	PT14-0

*1. The PTF[]A-E Relays have finger protection. Round terminals cannot be used. Use forked terminals.
*2. When ordering PT08, PT11, or PT14 sockets, please note that the minimum order quantity is 10 and orders are accepted in multiples of the minimum order.

Relay Hold-down Clips

Application	Used with Socket		Used with Socket mounting plate	For models with built-in CR circuits
Appearance
Model	PYC-A1	PYC-P	PYC-S	Y92H-3	PYC-1
Minimum order (quantity) *	100	100	10	10	10

* Orders are accepted in multiples of the minimum order.

Socket Mounting Plates

Applicable sockets	Number of sockets	Model
PT08 PT08QN	1	PYP-1 *1
	18	PYP-18 *2
	36	PYP-36 *2
PT11 PT11QN	1	PTP-1-3
	12	PTP-12
PT14 PT14QN	1	PTP-1
	10	PTP-10

*1. When ordering PYP-1, please note that the minimum order quantity is 10 and orders are accepted in multiples of the minimum order.
*2. PYP-18 and PYP-36 can be cut to any required length.

last update: January 15, 2018

OMRON LY dimension

last update: January 15, 2018

(Unit: mm)

Solder terminals

LY1
LY1N
LY1-D
LY1N-D2

LY2, LY2-D
LY2Z, LY2Z-D
LY2N, LY2N-D2
LY2ZN, LY2ZN-D2

LY3
LY3N
LY3-D
LY3N-D2

LY4
LY4N
LY4-D
LY4N-D2

LY2-CR
LY2Z-CR
LY2N-CR
LY2ZN-CR

* These dimensions are for the LY2N-CR.

Relays with PCB Terminals

LY1-0, LY3-0, LY2-0, and LY4-0

Note: The dimensions depicted here are for the LY2-0.
           The dimension with an asterisk (*) is 6.4 for the LY1-0.

Case-surface mounting

LY1F
LY2F

Note: The dimensions depicted here are for the LY1F. The LY2F is also conforms to these measurements.

LY3F

LY4F

Connection Sockets

PTF08A

PTF08A-E (Finger Protection Structure)

Mounting Hole Dimensions

PTF11A

Mounting Hole Dimensions

PTF14A

PTF14A-E (Finger Protection Structure)

Mounting Hole Dimensions

Note: If you use the PTF08A, PTF08A-E, or PT08 with an LY1 Relay, connect the following terminal pairs: 1-2, 3-4, and 5-6 (for usage at 10 A or higher).

PT08

PT08QN

Mounting hole and PCB dimensions

PT08-0

Mounting hole and PCB dimensions

PT11

PT11QN

Mounting hole and PCB dimensions

PT11-0

Mounting hole and PCB dimensions

PT14

PT14QN

Mounting hole and PCB dimensions

PT14-0

Mounting hole and PCB dimensions

Note: Use a panel with a thickness of 1 to 2 mm when mounting a Socket on it.

Hold-down Clips

PYC-A1

Approx. 0.54 g (per clip)
One Set (2 Clips)

PYC-P

Approx. 1.4 g

PYC-S

Approx. 1.8 g

Y92H-3

Approx. 0.7 g (per clip)
One Set (2 Clips)

PYC-1

Approx. 6 g

Socket Mounting Plates (t = 1.6)

OMRON can provide Socket Mounting Plate for convenient Socket installation. Please use these Plates as required.

PYP-1

PYP-18

PYP-36

PTP-1-3

PTP-12

PTP-1

PTP-10

last update: January 15, 2018

OMRON LY specification

last update: June 07, 2013

Ratings

Standard Models with Built-in Operation Indicators

Operating Coil, Single-pole and Double-pole Models

Item		Rated current (mA)		Coil resist- ance (Ω)	Coil inductance (H)		Must- operate voltage (V)	Must- release voltage (V)	Maximum voltage (V)	Power con- sumption (VA, W)
Rated voltage (V)		50 Hz	60Hz		Armature OFF	Armature ON
AC	12	106.5	91	46	0.17	0.33	80% max. *1	30% min. *2	110% of rated voltage	Approx. 1.0 to 1.2 (at 60 Hz)
	24	53.8	46	180	0.69	1.3
	50	25.7	22	788	3.22	5.66
	100/110	11.7/12.9	10/11	3,750	14.54	24.6				Approx. 0.9 to 1.1 (at 60 Hz)
	110/120	9.9/10.8	8.4/9.2	4,430	19.2	32.1
	200/220	6.2/6.8	5.3/5.8	12,950	54.75	94.07
	220/240	4.8/5.3	4.2/4.6	18,790	83.5	136.4
DC	6	150		40	0.16	0.33		10% min. *2		Approx. 0.9
	12	75		160	0.73	1.37
	24	36.9		650	3.2	5.72
	48	18.5		2,600	10.6	21.0
	100/110	9.1/10		11,000	45.6	86.2

3 poles

Item		Rated current (mA)		Coil resist- ance (Ω)	Coil inductance (H)		Must- operate voltage (V)	Must- release voltage (V)	Maximum voltage (V)	Power con- sumption (VA, W)
Rated voltage (V)		50 Hz	60Hz		Armature OFF	Armature ON
AC	12	159	134	24	0.12	0.21	80% max. *1	30% min. *2	110% of rated voltage	Approx. 1.6 to 2.0 (at 60 Hz)
	24	80	67	100	0.44	0.79
	100/110	14.1/16	12.4/13.7	2,300	10.5	18.5
	200/220	9.0/10.0	7.7/8.5	8,650	34.8	59.5
DC	12	112		107	0.45	0.98		10% min. *2		Approx. 1.4
	24	58.6		410	1.89	3.87
	48	28.2		1,700	8.53	13.9
	100/110	12.7/13		8,500	29.6	54.3

4 poles

Item		Rated current (mA)		Coil resist- ance (Ω)	Coil inductance (H)		Must- operate voltage (V)	Must- release voltage (V)	Maximum voltage (V)	Power con- sumption (VA, W)
Rated voltage (V)		50 Hz	60Hz		Armature OFF	Armature ON
AC	12	199	170	20	0.1	0.17	80% max. *1	30% min. *2	110% of rated voltage	Approx. 1.95 to 2.5 (at 60 Hz)
	24	93.6	80	78	0.38	0.67
	100/110	22.5/25.5	19/21.8	1,800	10.5	17.3
	200/220	11.5/13.1	9.8/11.2	6,700	33.1	57.9
DC	12	120		100	0.39	0.84		10% min. *2		Approx. 1.5
	24	69		350	1.41	2.91
	48	30		1,600	6.39	13.6
	100/110	15/15.9		6,900	32.0	63.7

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.

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	1 pole		Double-, 3-, and 4-pole models		Bifurcated contacts
Load	Resistive load	Inductive load (cos φ = 0.4, L/R = 7 ms)	Resistive load	Inductive load (cos φ = 0.4, L/R = 7 ms)	Resistive load	Inductive load (cos φ = 0.4, L/R = 7 ms)
Contact type	Single				Bifurcated
Contact materials	Ag alloy				Ag
Rated load	15 A at 110 VAC 15 A at 24 VDC	10 A at 110 VAC 7 A at 24 VDC	10 A at 110 VAC 10 A at 24 VDC	7.5 A at 110 VAC 5 A at 24 VDC	5 A at 110 VAC 5 A at 24 VDC	4 A at 110 VAC 4 A at 24 VDC
Rated carry current	15 A		10 A		7 A
Maximum contact voltage	250 VAC 125 VDC		250 VAC 125 VDC		250 VAC 125 VDC
Maximum contact current	15 A	15 A	10 A	10 A	7 A	7 A

Type	Single-pole and double-pole models (standard models and bifurcated contact models)	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
Ambient operating temperature	-25 to 55°C (with no icing or condensation) *1	-25 to +40°C (with no icing or condensation) *2
Ambient operating humidity	5% to 85%

Note: 1. 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 the ambient temperature and contact carry current characteristics data on Catalog 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		Standard models, models with built-in operation indicators, models with built-in CR circuits, and models with built-in diodes	Bifurcated contacts
Contact resistance *1		50 mΩ max.
Operating time *2		25 ms max.
Release time *2		25 ms max.
Maximum operating frequency	Mechanical	18,000 operations/h
	Rated load	1,800 operations/h
Insulation resistance *3		100 MΩ min.
Dielectric strength	Between coil and contacts	2,000 VAC at 50/60 Hz for 1 min.
	Between contacts of different polarity
	Between contacts of the same polarity	1,000 VAC at 50/60 Hz for 1 min.
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. DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h)
	Electrical *4	1-, 3-, 4-pole: 200,000 operations min. 2-pole: 500,000 operations min. (rated load, operating frequency: 1,800 operations/h)	2-pole: 500,000 operations min. (rated load, operating frequency: 1,800 operations/h)
Failure rate P value (reference value) *5		100 mA at 5 VDC	10mA at 5 VDC
Weight		1-pole and 2-pole: 40 g, 3-pole: Approx. 50 g, 4-pole: Approx. 70 g

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 operations per minute.

Endurance Under Real Loads (Reference Only)

Item	LY1, 100 VAC			LY2, 100 VAC
Load type	Conditions	Operating frequency	Electrical life (×10,000 operations min.)	Conditions	Operating frequency	Electrical life (×10,000 operations min.)
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	5	200 W, 100 VAC single-phase with 25-A inrush current, 5-A current flow	ON for 10 s, OFF for 50 s	20
AC lamp	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	10	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	8
	500 W, 100 VAC with 78-A inrush current, 5-A current flow		2.5
Capacitor (2,000 μF)	24 VDC with 50-A inrush current, 1-A current flow	ON for 1 s, OFF for 6 s	10	24 VDC with 50-A inrush current, 1-A current flow	ON for 1 s, OFF for 15 s	1
				24 VDC with 20-A inrush current, 1-A current flow		15
AC solenoid	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	150	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	100
	100 VA with 5-A inrush current, 0.5-A current flow		80	100 VA with 5-A inrush current, 0.5-A current flow		50

Item	LY4, 100 VAC
Load type	Conditions	Operating frequency	Electrical life (×10,000 operations min.)
AC motor	200 W, 200 VAC three-phase with 5-A inrush current, 1-A current flow	ON for 10 s, OFF for 50 s	50
	750 W, 200 VAC three-phase with 18-A inrush current, 3.5-A current flow		7
AC lamp	300 W, 100 VAC with 51-A inrush current, 3-A current flow	ON for 5 s, OFF for 55 s	5
Capacitor (2,000 μF)	24 VDC with 50-A inrush current, 1-A current flow	ON for 1 s, OFF for 15 s	0.5
	24 VDC with 20-A inrush current, 1-A current flow	ON for 1 s, OFF for 2 s	20
AC solenoid	50 VA with 2.5-A inrush current, 0.25-A current flow	ON for 1 s, OFF for 2 s	100
	100 VA with 5-A inrush current, 0.5-A current flow		50

last update: June 07, 2013

OMRON LY catalog

• Catalog
• Manual
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
LY Data Sheet	- [7229KB]	Jan 05, 201820180105	LY Data Sheet

• NO. LY
• TYPE:General Purpose Relays For Control Panel Copyright Statement
• DATE:2021-06-07
• Associated products:
  MY Miniature Power Relays/Features G2R-[]-S (S) General-purpose Relay/Features