SKU: R88M-G40030H-S2-Z
Omron R88M-G40030H-S2-Z G-Series Servo Motor, 400 W, 200 VAC, 3000 rpm, with Brake and Safety Companion
Omron R88M-G40030H-S2-Z G-series AC servo motor, 400 W, 200 VAC, 3000 rpm, with 24 VDC electromagnetic brake and oil seal. The "-Z" suffix denotes the safety companion variant, paired with a -Z suffix Accurax G5 drive.
USD 188.00 per unit, volume discounts available
- In stock, ships in 24h
- 100% genuine Omron
- 1-year manufacturer warranty
- Worldwide delivery
Key Features
- 400 W continuous output at 3,000 rpm rated speed
- 200 VAC class
- Smooth shaft with 24 VDC electromagnetic brake (spring-applied)
- Oil seal for gearbox- or oil-lubricated mounting
- 20-bit incremental encoder (compatible with the G5 G-series drive)
- Qualified as the safety companion variant for -Z suffix drives
- 60 mm frame (square flange)
- IP65 body, IP67 shaft seal
400 W 200 V G-series motor with brake and safety companion
The Omron R88M-G40030H-S2-Z is a 400 W, 200 VAC, 3000 rpm member of the Accurax G5 G-series servo motor family, with electromagnetic brake and oil seal, in the safety companion variant. The "R88M-G" prefix denotes the older G-series motor in the G5 family — distinct from the more recent R88M-K series, although both are part of the Accurax G5 platform.
The "H" in the code denotes the 200 V class. "40030" is 400 W at 3000 rpm. The "-S2" suffix indicates a smooth shaft with brake, and the trailing "-Z" is the safety companion variant: the motor is mechanically and electrically identical to the non-Z R88M-G40030H-S2, but it is qualified by Omron to operate with the -Z safety drives in functional-safety applications.
The oil seal (the "S2" also covers the oil-seal option in this code line) is important for gear-coupled or oil-lubricated applications where the bare shaft would otherwise be exposed to lubricant or coolant. The 24 VDC brake is spring-applied and electrically released — fail-safe on power loss.
This motor is a good fit for safety-rated vertical axes and press / shear applications where the load must be held when the servo is off, and where the application needs STO / SS1 / SLS from the drive. The matching drive is the R88D-KN04H-ECT-Z (400 W, 400 V, EtherCAT, safety) — note the voltage class may differ (G-series motor is 200 V, the typical Z drive is 400 V); Omron's selection tables map motor to drive explicitly.
Typical Applications
- Vertical-axis applications with safety-rated drive pairing
- Press and stamping machine feed axes
- Gear-coupled axes in oil-lubricated gearboxes
- Safety-rated Z-axis on robot cells
- Replacement of legacy G-series motors in existing G5 installations
Buying Checklist
- Confirm the matching drive from the Omron selection table — the -Z motor pairs with a specific -Z drive, not with a non-Z drive
- For vertical / Z-axis duty, the brake is essential — never run a vertical axis on a brake-less motor
- The oil seal adds drag and reduces continuous torque by a small amount — account for that in sizing
- Verify the 200 V motor class against the drive's voltage class — G-series motors are 200 V class, but they are commonly driven by 400 V G5 drives via the encoder interface
- If you are designing a new system, prefer the R88M-K series over the older R88M-G series
Technical Specifications
| Series | Accurax G5 (R88M-G, G-series) |
|---|---|
| Model | R88M-G40030H-S2-Z |
| Motor type | AC servo motor, medium-inertia |
| Rated output | 400 W |
| Rated speed | 3,000 rpm |
| Rated voltage | 200 VAC class (200–230 VAC) |
| Rated torque | 1.27 N·m |
| Peak torque | 3.82 N·m (3× rated) |
| Encoder | Incremental serial encoder (20-bit compatible) |
| Shaft | Smooth |
| Oil seal | Yes |
| Brake | 24 VDC spring-applied electromagnetic brake |
| Brake holding torque | ≥ rated torque |
| Frame size | 60 mm square flange |
| Shaft diameter | 14 mm |
| Mass | ≈ 1.4 kg (with brake) |
| Protection | IP65 (body), IP67 (shaft) |
| Insulation class | Class F |
| Operating temperature | 0 °C to +40 °C |
| Safety variant | Qualified companion to -Z suffix drives |
Frequently Asked Questions
What is the difference between R88M-G and R88M-K?
Both are Accurax G5 servo motors. The R88M-G is the older G-series (medium-inertia); the R88M-K is the newer K-series (low-inertia). They are not interchangeable: the encoder interface, shaft dimensions and mounting details differ. For new designs, prefer the R88M-K series.
Why is the motor marked "-Z"?
The trailing -Z is the safety companion designation. The motor itself is mechanically and electrically identical to the non-Z R88M-G40030H-S2, but Omron has qualified it as suitable for use with -Z suffix safety drives in functional-safety applications.
What drive pairs with this motor?
An -Z suffix Accurax G5 drive at the matching power: R88D-KN04H-ECT-Z (400 W, 400 V, EtherCAT, safety) is the common choice. Always confirm with the Omron selection table for your specific safety function.
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