OMRON relays fall into three groups by function: general-purpose miniature electromagnetic relays (MY / LY / G2RL / G2RV series, for general signal switching), timer relays (H3Y / H3BA / H3CR / H3BG / H5CN series, for time-delay control) and auxiliary relays (J7AN-E3, for adding auxiliary contacts). This page covers commonly used models across coil voltages from DC24V to AC240V.
General-purpose relays (MY / LY / G2RL series)
| Model | Coil voltage | Contacts | Features |
|---|---|---|---|
| MY2N | AC / DC, several voltages | 2C (DPDT) | Standard sealed type, common model, 8-pin |
| MY2N-D2 (discontinued) | DC24V | 2C | Built-in suppression diode to protect PLC outputs |
| MY2N-GS (discontinued) | AC / DC | 2C | With safety latch against accidental removal |
| MY4N | AC / DC, several voltages | 4C (4PDT) | 4 sets of contacts, 14-pin |
| MY4N-GS | AC / DC | 4C | MY4N with safety latch |
| MY4H | AC / DC | 4C | High-sensitivity type, low coil power |
| LY4N-J / LY4NJ | AC / DC, several voltages | 4C | Larger 10 A contacts, screw terminals |
| G2RL-2 | DC / AC | 2C | PCB mount, slim design |
| G2RV-ST500-DC24 | DC24V | SPDT | Slim DIN rail type, driven directly by PLC |
| MK2P | AC / DC | 2C 8 A | Power type with test button |
Timer relays (H3 series): selection points
| Model | Power | Time range | Output contacts | Use |
|---|---|---|---|---|
| H3Y-2 | DC24V | Up to 5 s | 2C timed | Compact, short delays |
| H3Y-2-C | DC24V | Multi-range | 2a2b timed | Multi-stage time setting |
| H3BA-N8H | AC110V | Up to 30 s | 1c timed + 1a instantaneous | Analog dial, multifunction, general use |
| H3BG-N8H | AC220V | Up to 60 s | 3a timed | Star-delta motor starting |
| H3CR-A / A8 | DC100–125V / AC100–240V | Up to 300 h | 2C timed | DIN rail, star-delta / multifunction |
| H3CR-G8EL | AC220V | Up to 120 s | 1C timed + 1C instantaneous | Off-delay / multiple delay modes |
| H5CN-XCN (discontinued) | AC100–240V | Up to 99.99 min | 1c timed | Digital display, panel mount, high accuracy |
Trademarks: OMRON and the model names on this page are trademarks or model names of their owner, used here only to identify the products. JIAHON is not the authorized distributor of OMRON in Taiwan.
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