OTIS MCB3X GCA26800KV44 Elevator Main Drive PCB
The GCA26800KV44 is the OTIS MCB3X (Motion Control Board 3rd generation) inverter PCB, serving as the central control unit for elevator drive systems. This original lift inverter board processes speed profiles, encoder feedback, and safety-chain logic to ensure optimal traction performance for Gen2 and Gen2-Regen elevators.
Key Features
- 100% genuine OTIS spare part, brand-new with intact manufacturer logos
- Industrial-grade 6-layer FR-4 PCB construction with anti-vibration design
- Pre-loaded with OTIS factory firmware - no on-site programming required
- Supports both synchronous and asynchronous motors up to 15 kW capacity
- Wide ambient operating range suitable for high-rise machine-room-less applications
Technical Specifications
| Part Number |
GCA26800KV44 (also compatible with GCA26800KV4) |
| Board Generation |
MCB3X |
| Input Voltage |
24 VDC ±10% (logic) / 380-480 VAC (power stage) |
| Maximum Output Frequency |
0 - 400 Hz |
| PWM Carrier |
8 kHz (adjustable) |
| Encoder Interface |
SIN/COS or TTL, auto-detect capability |
| Protection Class |
IP00 (panel mount) |
| Operating Temperature |
-25 °C to +70 °C |
| Storage Temperature |
-40 °C to +85 °C |
| Humidity |
5% - 95% RH non-condensing |
| Dimensions |
200 mm × 130 mm × 30 mm |
| Weight |
0.22 kg |
| Certifications |
CE, UL, EN 81-20/50 |
Package Contents
1 × OTIS MCB3X GCA26800KV44 Control Board (packaged in anti-static bag and foam box)
Warranty & Shipping
12-month replacement warranty with lifetime technical support. In-stock units ship within 24 hours via DHL, UPS, or FedEx. Average worldwide delivery time: 3-7 days.
Ordering Information
Important: Please verify your existing board revision (KV4 or KV44) and elevator model (Gen2 / Gen2-Regen) before ordering. For bulk orders of 10+ units, contact us for project-based pricing and firmware customization options.