The JB 521C23 KNX shutter blind actuator is a two-channel AC 120 V controller designed for North American junction box installations. Each channel delivers 6 A rated contact current for resistive loads and utilizes two electrically interlocked relays to reverse motor direction.
| Communication | KNX bus |
|---|---|
| Outputs | 2 outputs AC 120 V, 6 A each resistive |
| Relays | Electrically interlocked |
| Calibration | Auto-calibration of travel time |
| Connection | 1/2 inch threaded connection for UL/NEMA junction box |
| Protection | IP20 |
| Power | Bus-powered |
| Dimensions | 70 x 90 x 44.6 mm |
| Warranty | 24 months |