OMRON General Purpose Relay – LY

Specifications | General Purpose Relay – LY

Ratings

Standard Models with Built-in Operation Indicators

Operating Coil, Single-pole and Double-pole Models

3 poles

4 poles

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.

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 Ambient Temperature vs. Coil Temperature Rise in Engineering 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 the PTF-08-PU, PTF-08-PU-L, 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

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)

Features | General Purpose Relay – LY

• Wiring work can be shortened by as much as 60%* compared to conventional screw terminal sockets by combining with push-in plus terminal sockets (PYF-[]-PU) that feature light insertion force and strong pull-out strength to achieve less wiring work.
• 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).
• When both push-in plus terminals and screw terminal sockets are combined with plug-in terminal types (according to actual OMRON measurements as of November 2015)

Properties | General Purpose Relay – LY