Bi-power Relays LY CSM LY DS E 4 5 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/ Refer to the standards certifications and compliance section of your 110 VAC, 110/120 VAC, 200/220 VAC, 220/240 VAC, OMRON website for the latest information on certified models. 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. 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 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 (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. 1LY Ordering Information 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