Phase angle control
Model 18D series
- Description
- Single phase, phase angle control.
- Application
- Variable voltage control of constant resistance loads.
- Phase
- Single phase
- Rating
- 10–1200 A
- Input
- 120, 240, 480 VAC

Ratings, dimensions and list prices
120 VAC input, 0–118 VAC output, 50/60 Hz
| Open chassis, inches | List price | Ventilated enclosure | ||||||
|---|---|---|---|---|---|---|---|---|
| Model number | Fuse amps | kVA at max rated volts | Height | Width | Depth | Open chassis | Enclosure H × W × D | Enclosure adder |
| 18D-1-10i | 10 | 1.2 | 6.25 | 3.5 | 3 | $89.00 | 10 × 6 × 6 | $65.00 |
| 18D-1-20i | 20 | 2.4 | 6.25 | 3.5 | 3 | $118.00 | 10 × 6 × 6 | $65.00 |
| 18D-1-30i | 30 | 3.6 | 6.25 | 3.5 | 4.1 | $134.00 | 10 × 6 × 6 | $65.00 |
| 18D-1-50 | 50 | 5.9 | 12 | 5.5 | 6 | $266.00 | 14 × 12 × 8 | $142.00 |
| 18D-1-80 | 80 | 9.4 | 12 | 5.5 | 6 | $287.00 | 14 × 12 × 8 | $142.00 |
| 18D-1-120 | 120 | 14.1 | 12.5 | 6.5 | 8 | $478.00 | 20 × 16 × 9 | $284.00 |
| 18D-1-150 | 150 | 17.7 | 15 | 9.5 | 8 | $488.00 | 20 × 16 × 9 | $284.00 |
| 18D-1-250 | 250 | 30.0 | 25 | 9.5 | 8 | $696.00 | 30 × 20 × 9 | $408.00 |
| 18D-1-350 | 350 | 41.3 | 21 | 13 | 10.5 | $782.00 | 36 × 24 × 12 | $632.00 |
240 VAC input, 0–238 VAC output, 50/60 Hz
Also for 208/220/230 VAC input
| Open chassis, inches | List price | Ventilated enclosure | ||||||
|---|---|---|---|---|---|---|---|---|
| Model number | Fuse amps | kVA at max rated volts | Height | Width | Depth | Open chassis | Enclosure H × W × D | Enclosure adder |
| 18D-2-10i | 10 | 2.4 | 6.25 | 3.5 | 3 | $119.00 | 10 × 6 × 6 | $65.00 |
| 18D-2-15i | 15 | 3.6 | 6.25 | 3.5 | 3 | $126.00 | 10 × 6 × 6 | $65.00 |
| 18D-2-20i | 20 | 4.8 | 6.25 | 3.5 | 3 | $142.00 | 10 × 6 × 6 | $65.00 |
| 18D-2-30i | 30 | 7.2 | 6.25 | 3.5 | 4.1 | $174.00 | 10 × 6 × 6 | $65.00 |
| 18D-2-50 | 50 | 11.9 | 12 | 5.5 | 6 | $256.00 | 14 × 12 × 8 | $142.00 |
| 18D-2-80 | 80 | 19.0 | 12 | 5.5 | 6 | $287.00 | 14 × 12 × 8 | $142.00 |
| 18D-2-120 | 120 | 28.5 | 12.5 | 6.5 | 8 | $478.00 | 20 × 16 × 8 | $284.00 |
| 18D-2-150 | 150 | 35.7 | 15 | 9.5 | 8 | $488.00 | 20 × 16 × 9 | $284.00 |
| 18D-2-250 | 250 | 60.0 | 25 | 9.5 | 8 | $696.00 | 30 × 20 × 9 | $408.00 |
| 18D-2-350 | 350 | 83.3 | 21 | 13 | 10.5 | $782.00 | 36 × 24 × 12 | $632.00 |
480 VAC input, 0–478 VAC output, 50/60 Hz
Also for 380/415/440 VAC input
| Open chassis, inches | List price | Ventilated enclosure | ||||||
|---|---|---|---|---|---|---|---|---|
| Model number | Fuse amps | kVA at max rated volts | Height | Width | Depth | Open chassis | Enclosure H × W × D | Enclosure adder |
| 18D-4-10 | 10 | 4.8 | 7 | 5.5 | 4.5 | $178.00 | 12 × 10 × 8 | $118.00 |
| 18D-4-20 | 20 | 9.6 | 7 | 5.5 | 4.5 | $187.00 | 12 × 10 × 8 | $118.00 |
| 18D-4-30 | 30 | 14.4 | 7 | 5.5 | 5.5 | $194.00 | 12 × 10 × 8 | $118.00 |
| 18D-4-50 | 50 | 23.9 | 12 | 5.5 | 6 | $289.00 | 14 × 12 × 8 | $142.00 |
| 18D-4-80 | 80 | 38.2 | 12 | 5.5 | 6 | $342.00 | 14 × 12 × 8 | $142.00 |
| 18D-4-120 | 120 | 57.3 | 12.5 | 6.5 | 8 | $478.00 | 20 × 16 × 9 | $284.00 |
| 18D-4-150 | 150 | 71.7 | 15 | 9.5 | 8 | $554.00 | 20 × 16 × 9 | $284.00 |
| 18D-4-250 | 250 | 120 | 25 | 9.5 | 8 | $696.00 | 30 × 20 × 9 | $408.00 |
| 18D-4-350 | 350 | 167 | 21 | 13 | 10.5 | $782.00 | 36 × 24 × 12 | $632.00 |
| 18D-4-450 | 450 | 215 | 27 | 17 | 10.5 | $866.00 | 36 × 24 × 12 | $632.00 |
| 18D-4-600 | 600 | 288 | 27 | 17 | 10.5 | $1072.00 | 42 × 30 × 12 | $898.00 |
| 18D-4-1200 | 1200 | 576 | 47 | 21 | 11 | $2280.00 | 72 × 36 × 12 | $1293.00 |
Drawings

