Deskripsi
Power Board
Limitorque Power Board P/N: 102777, a spare part used in Flowserve Limitorque MX Series electric actuators.
- Type: Power Supply / Control PCB
- Model: MX Series actuator power board
- Part Number: 102777
- System Compatibility: Limitorque MX actuators (MX‑05, MX‑10, MX‑15, MX‑20 depending on revision)
- Brand : Limitorque
Product Overview:
The 102777 power board is an internal PCB that provides regulated power distribution and motor control functions for Limitorque MX actuators. It converts incoming AC supply into stable DC voltages for logic circuits, drives the actuator motor, and provides protection against overloads and faults. It is a critical spare for actuator reliability.
Specifications (typical for MX power boards):
| Feature | Specification |
|---|---|
| Function | Power supply, motor drive, and protection |
| Input Voltage | 110–240 VAC (single‑phase) or 380–460 VAC (3‑phase, depending on actuator) |
| Output Voltages | 24 VDC logic, auxiliary DC rails |
| Motor Control | Motor drive interface with torque/limit feedback |
| Protection | Over‑voltage, over‑current, surge suppression, thermal shutdown |
| Interface | Connectors to CPU board, motor, feedback modules |
| Operating Temp | −40 °C to +70 °C |
| PCB Coating | Conformal coating for humidity/corrosion resistance |
| Compliance | IEC 60947, NEMA 4/6, IP68 (when installed in actuator housing) |
Dimensions & Weight:
- Size: ~200 × 120 × 40 mm
- Weight: ~400–600 g
Applications:
- Installed in Limitorque MX actuators (MX‑05, MX‑10, MX‑15, MX‑20)
- Provides regulated power and motor drive for:
- Valve open/close control
- Torque and limit protection
- Local/remote operation
- Used in:
- Power generation
- Oil & gas pipelines
- Water treatment plants
- Chemical and petrochemical automation
- Marine and HVAC systems






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