| Model | Port size | A | B | C | 
| IDF1E | Rc3/8 | 226 | 410 | 413 | 
| IDF2E | ||||
| IDF3E | 473 | |||
| IDF4E | Rc1/2 | 270 | 453 | 498 | 
| IDF6E | Rc3/4 | 455 | ||
| IDF8E | 485 | 568 | ||
| IDF11E | ||||
| IDF15E1 | Rc1 | 300 | 603 | 578 | 
| IDF22E | R1 | 290 | 775 | 623 | 
| IDF37E | R1 1/2 | 855 | ||
| IDF55E | R2 | 470 | 855 | 800 | 
| IDF75E | 900 | 

| Model | Port size | A | B | C | 
| IDF1E | Rc3/8 | 226 | 410 | 413 | 
| IDF2E | ||||
| IDF3E | 473 | |||
| IDF4E | Rc1/2 | 270 | 453 | 498 | 
| IDF6E | Rc3/4 | 455 | ||
| IDF8E | 485 | 568 | ||
| IDF11E | ||||
| IDF15E1 | Rc1 | 300 | 603 | 578 | 
| IDF22E | R1 | 290 | 775 | 623 | 
| IDF37E | R1 1/2 | 855 | ||
| IDF55E | R2 | 470 | 855 | 800 | 
| IDF75E | 900 | 

| Size | Air compressor size | Applicable size | Size | Air compressor size | Applicable size | ||
| IDF | IDU | IDF | IDU | ||||
| 1E | 0.75 kW | ● | — | 11E | 11 kW | ● | ● | 
| 2E | 1.5 kW | ● | — | 15E1 | 15 kW | ● | ● | 
| 3E | 2.2 kW | ● | ● | 22E | 22 kW | ● | ● | 
| 4E | 3.7 kW | ● | ● | 37E | 37 kW | ● | ● | 
| 6E | 5.5 kW | ● | ● | 55E | 55 kW | ● | ● | 
| 8E | 7.5 kW | ● | ● | 75E | 75 kW | ● | ● | 
| Symbol | Voltage | Applicable size | |||||||||||
| 1E | 2E | 3E | 4E | 6E | 8E | 11E | 15E1 | 22E | 37E | 55E | 75E | ||
| 10 | Single-phase 100 VAC (50 Hz) 100/110 VAC (60 Hz) | ● | ● | ● | ● | ● | ● | ● | ● | — | — | — | — | 
| 20 | Single-phase 200 VAC (50 Hz) 200/220 VAC (60 Hz) | — | — | ● | ● | ● | ● | ● | ● | ∗1 ● | ∗1 ● | — | — | 
| 23 | Single-phase 230 VAC (50 Hz) | — | — | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | ∗2 ▲ | 
| 30 | Three-phase 200 VAC (50 Hz) 200/220 VAC (60 Hz) | — | — | — | — | — | — | — | — | ● | ● | ● | ● | 
| Symbol | Description | 
| Nil | — | 
| A | Cool compressed air output | 
| C | Anti-corrosive treatment for copper tube | 
| K | Moderate pressure specification (Metal bowl with level gauge) | 
| L | With a heavy-duty auto drain | 
| M | With a motor type auto drain | 
| R | With an earth leakage breaker | 
| S | Power supply terminal block connection | 
| T | With a terminal block for power supply, operating, and error signals | 
| V∗2 | With a timer controlled solenoid valve type (Voltage symbol 23 only) |