What the ratings mean for fit
The Omron R88M1L4K030CBS2 is a 1S-series servo motor delivering 12.7 Nm of rated torque at 3000 min⁻¹ output speed, drawing 12.8 A at full load. That torque rating tells you what load it can accelerate and hold — 12.7 Nm continuous means it's sized for medium-inertia rotary applications like indexing tables, conveyor drums, or ball-screw axes where the load-to-motor inertia ratio stays under 10:1 for stable tuning. The 3000 min⁻¹ base speed is the standard for most direct-drive or 1:1 belt-coupled axes; if your application needs higher speed, you'll be running in the field-weakening range above that, which reduces available torque. The 12.8 A rated current is what the drive must supply continuously — match this to the drive's continuous current rating, not its peak.
Voltage range and drive compatibility
The motor accepts 323–528 VAC, which covers 400 VAC three-phase mains with typical ±10% tolerance and includes 480 VAC industrial supplies common in North America. That range means it pairs with any 400‑class servo drive that outputs the same voltage class — no step-down transformer needed for 480 V lines. The lower bound at 323 VAC gives headroom for brownout conditions or long cable runs where voltage drop is a concern.
Frame size and mechanical integration
The frame measures 251 mm wide by 130 mm high by 130 mm deep. That's a compact footprint for a motor delivering 12.7 Nm — it fits in the same bolt pattern as other 1S-series motors in this torque class, so swapping from a lower-torque sibling means checking the mounting holes match. The 130 mm square flange is standard for this power level; verify the shaft keyway and pilot diameter against your coupling before ordering.