Document
Bi-power Relays
LY
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, 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.
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Refer to the standards certifications and compliance section of your OMRON website for the latest information on certified models.
Model Number Structure
Structure
Relays with Plug-in Terminals
Relays with PCB Terminals Case-surface mounting
Classification
Number of poles
1
Standard models
Compliance with Electrical Appliances
2 Bifurcated
and Material Safety Act 3
4
Models with diode for
coil surge absorption (DC coil specification only)
1
2 Bifurcated
3
4
Models with CR circuits 1 for coil surge absorption
(AC coil specification only)
2 Bifurcated
*LY1 *LY2
**LY2Z
*LY3 *LY4 **LY1-D **LY2-D
**LY2Z-D
**LY3-D **LY4-D
--**LY2-CR
**LY2Z-CR
With operation indicators
**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
-----
---
-----
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 17 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 8IFOZPVSPSEFS TQFDJGZUIFSBUFEWPMUBHF
Relays
Models with Plug-in Terminals
Classification
Number of poles Model
Standard models
LY1
Models with single contacts
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
Standard models
LY1N
LY1-D LY1N-
D2 ---------
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
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 LY2-CR LY2N-CR LY2Z
LY2ZN LY2Z-D LY2ZN-
D2 LY2Z-CR LY2ZN-
CR
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 LY3
LY3N
LY3-D LY3N-
D2 ---------------------
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
---
---
-----
-------
---
---
---
4 poles Model Rated voltage (V)
12, 24, 100/110, or LY4 200/220 VAC
12, 24, 48, or 100/110 VDC
LY4N LY4-D
12, 24, 100/110, or 200/220 VAC
12, 24, 48, or 100/110 VDC 12, 24, 48, or 100/110 VDC
LY4N- 12, 24, 48, D2 or 100/110 VDC
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
Relays with PCB Terminals
Number of poles Classification
Models with single contacts
Model
LY1-0
1 pole Rated voltage (V) 24,100/110, 110/120, or 200/220 VAC
12 or 2.