| Model No. | External Dimensions (mm) |
Internal Dimensions (mm) |
Airflow Velocity (Inflow) |
Airflow Velocity (Downflow) |
Electrical |
| EFU-4A2 | 110-120V,AC, 60Hz,1ø | ||||
| EFU-5A2 | 110-120V,AC, 60Hz,1ø | ||||
| EFU-6A2 | 110-120V,AC, 60Hz,1ø |

| STANDARDS COMPLIANCE | CONTAINMENT | ELECTRICAL SAFETY |
| ANSI/ASHRAE 110-1995, USA BS 7258, UK | UL-C 61010A-1, USA CAN/CSA-C22.2, No.61010-1 EN 61010-1, Europe |