Bi-power Relays
LY
E
Power-switching Compact
General-purpose Relays
The standard models include models that are
compliant with the UL, CSA, and SEV safety
standards and with the Electrical Appliances and
Material Safety Act.
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,
Refer to the standards certifications and compliance section of your
110/120 VAC, 200/220 VAC, 220/240 VAC, and 100/
OMRON website for the latest information on certified models.
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.
Model Number Structure
Relays with Plug-in Terminals Relays with PCB Terminals Case-surface mounting
Structure
Number
Classification With operation indicators
of poles
1
*LY1 **LY1N *LY1-0 *LY1F
Standard models
*LY2 **LY2N *LY2-0 *LY2F
2
Bifur-
Compliance with
**LY2Z **LY2ZN **LY2Z-0 **LY2ZF
cated
Electrical Appliances
and Material Safety Act
3 *LY3 **LY3N *LY3-0 *LY3F
4
*LY4 **LY4N *LY4-0 *LY4F
1 **LY1-D **LY1N-D2 --- ---
Models with diode for
--- ---
**LY2-D **LY2N-D2
coil surge absorption
(DC coil specification 2
Bifur-
--- ---
**LY2Z-D **LY2ZN-D2
only)
cated
3 --- ---
**LY3-D **LY3N-D2
4 **LY4-D **LY4N-D2 --- ---
Models with CR circuits 1
--- ---
for coil surge
**LY2-CR **LY2N-CR
absorption
2
Bifur-
(AC coil specification
**LY2Z-CR **LY2ZN-CR
cated
only)
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 16 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 (TV).
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
Relays
Models with Plug-in 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)
12, 24, 100/110, 12, 24, 100/110,110/
12, 24, 100/110, or 12, 24, 100/110, or
110/120, 120, 200/220,
200/220 VAC 200/220 VAC
or 200/220 VAC or220/240 VAC
Standard models LY1 LY2 LY3 LY4
12, 24, 48, 12, 24, 48, 12, 24, 48, 12, 24, 48,
or 100/110 VDC or 100/110 VDC or 100/110 VDC or 100/110 VDC
12, 24, 100/110, 12, 24, 100/110,110/
12, 24, 100/110, or 12, 24, 100/110, or
110/120, 120, 200/220,
200/220 VAC 200/220 VAC
Models with built-in
or 200/220 VAC or 220/240 VAC
LY1N LY2N LY3N LY4N
operation indicators
12, 24, 12, 24, 48, 12, 24, 48, 12, 24, 48,
Models with or 100/110 VDC or 100/110 VDC or 100/110 VDC or 100/110 VDC
single
Models with built-in 12, 24, 48, 12, 24, 48, 12, 24, 48, 12, 24, 48,
LY1-D LY2-D LY3-D LY4-D
contacts
diodes or 100/110 VDC or 100/110 VDC or 100/110 VDC or 100/110 VDC
Models with built-in
LY1N- 12, 24, 48, LY3N- 12, 24, LY4N- 12, 24, 48,
diodes and 12, 24, or 48 VDC LY2N-D2
D2 or 100/110 VDC D2 or 100/110 VDC D2 or 100/110 VDC
operation indicators
100/110, 110/120,
Models with built-in
--- --- LY2-CR 200/220, or 220/240 --- --- --- ---
CR circuits
VAC
Models with built-in 100/110, 110/120,
CR circuits and --- --- LY2N-CR 200/220, or 220/240 --- --- --- ---
operation indicators VAC
100/110 or200/220
--- --- --- --- --- ---
VAC
Standard models LY2Z
12, 24, 48, or 100/
--- --- --- --- --- ---
110 VDC
100/110, 110/120,
--- --- 200/220, --- --- --- ---
Models with built-in
LY2ZN
or 220/240 VAC
operation indicators
--- --- 12 or 24 VDC --- --- --- ---
Bifurcated
Models with built-in
--- --- LY2Z-D 12, 24, or 48 VDC --- --- --- ---
contacts diodes
Models with built-in
LY2ZN- 12, 24, or 100/110
diodes and --- --- --- --- --- ---
D2 VDC
operation indicators
Models with built-in
--- --- LY2Z-CR 100/110 VAC --- --- --- ---
CR circuits
Models with built-in
LY2ZN- 100, 110, 110/1 20,
CR circuits and --- --- --- --- --- ---
CR or 200/220 VAC
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)
24,100/110, 12, 24,
24, 100/110, 24, 100/110, or 200/
110/120, or 200/220 100/110, 110/120, 200/
or 200/220 VAC 220 VAC
Models with single
VAC 220, or 220/240 VAC
LY1-0 LY2-0 LY3-0 LY4-0
contacts
12, 24, 48 12, 24, 48, or 12, 24, 48, or
12 or 24 VDC
or 100/110 VDC 100/110 VDC 100/110 VDC
100/110 VAC ---
Bifurcated contacts --- --- LY2Z-0 --- --- ---
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)
24, 100/110, 12, 24, 100/110, 110/
12, 24, 100/110, 12, 24, 100/110,
110/120, 200/220, 120, 200/220,
or 200/220 VAC or 200/220 VAC
Models with single
or 220/240 VAC or 220/240 VAC
LY1F LY2F LY3F LY4F
contacts
6, 12, 24, or 100/110 12, 24, 48, or 100/110 12, 24, or 100/110
12, 24, or 100/110 VDC
VDC VDC VDC
24, 100/110,
or 200/220 VAC
Bifurcated contacts --- --- LY2ZF --- --- --- ---
12 or 24 VDC
2