Approved for Overhead or Underground Entrance - 250 Volts
| Catalog Number | Amps | Volts | Service | H x W x D |
| GLA-403 | 400 | 250 | 1Ø-3W | 42 24 8 |
| GLA-433 | 400 | 250 | 3Ø-3W | 42 24 8 |
| GLA-404 | 400 | 250 | 3Ø-4W | 42 24 8 |
| GLA-603 | 600 | 250 | 1Ø-3W | 42 24 8 |
| GLA-633 | 600 | 250 | 3Ø-3W | 42 24 8 |
| GLA-604 | 600 | 250 | 3Ø-4W | 42 24 8 |
| GLA-803 | 800 | 250 | 1Ø-3W | 42 24 8 |
| GLA-833 | 800 | 250 | 3Ø-3W | 42 24 8 |
| GLA-804 | 800 | 250 | 3Ø-4W | 42 24 8 |
| GLA-1233 | 1200 | 250 | 3Ø-3W | 48 46 12 |
| GLA-1204 | 1200 | 250 | 3Ø-4W | 48 46 12 |
| GLA-1633 | 1600 | 250 | 3Ø-3W | 66 54 14 |
| GLA-1604 | 1600 | 250 | 3Ø-4W | 66 54 14 |
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3Ø-4W Units With Provision For Mounting Three Potential Transformers - 600 Volts
| Catalog Number | Amps | Volts | Service | H x W x D |
| GLA-464 | 400 | 600 | 3Ø-4W | 48 36 14 |
| GLA-664 | 600 | 600 | 3Ø-4W | 48 36 14 |
| GLA-864 | 800 | 600 | 3Ø-4W | 48 36 14 |
| GLA-1264 | 1200 | 600 | 3Ø-4W | 48 46 12 |
| GLA-1664 | 1600 | 600 | 3Ø-4W | 66 54 14 |
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3Ø-4W Units With Provision For Mounting Two Potential Transformers - 600 Volts
| Catalog Number | Amps | Volts | Service | H x W x D |
| GLA-463 | 400 | 600 | 3Ø-3W | 48 36 14 |
| GLA-663 | 600 | 600 | 3Ø-3W | 48 36 14 |
| GLA-863 | 800 | 600 | 3Ø-3W | 48 36 14 |
| GLA-1263 | 1200 | 600 | 3Ø-3W | 48 46 12 |
| GLA-1663 | 1600 | 600 | 3Ø-3W | 66 54 14 |
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Gladstone Power & Light - Complete Listing
| Catalog Number | Amps | Volts | Service | H x W x D |
| GLA-403 | 400 | 250 | 1Ø-3W | 42 24 8 |
| GLA-433 | 400 | 250 | 3Ø-3W | 42 24 8 |
| GLA-404 | 400 | 250 | 3Ø-4W | 42 24 8 |
| GLA-603 | 600 | 250 | 1Ø-3W | 42 24 8 |
| GLA-633 | 600 | 250 | 3Ø-3W | 42 24 8 |
| GLA-604 | 600 | 250 | 3Ø-4W | 42 24 8 |
| GLA-803 | 800 | 250 | 1Ø-3W | 42 24 8 |
| GLA-833 | 800 | 250 | 3Ø-3W | 42 24 8 |
| GLA-804 | 800 | 250 | 3Ø-4W | 42 24 8 |
| GLA-1233 | 1200 | 250 | 3Ø-3W | 48 46 12 |
| GLA-1204 | 1200 | 250 | 3Ø-4W | 48 46 12 |
| GLA-1633 | 1600 | 250 | 3Ø-3W | 66 54 14 |
| GLA-1604 | 1600 | 250 | 3Ø-4W | 66 54 14 |
| GLA-463 | 400 | 600 | 3Ø-3W | 48 36 14 |
| GLA-663 | 600 | 600 | 3Ø-3W | 48 36 14 |
| GLA-863 | 800 | 600 | 3Ø-3W | 48 36 14 |
| GLA-1263 | 1200 | 600 | 3Ø-3W | 48 46 12 |
| GLA-1663 | 1600 | 600 | 3Ø-3W | 66 54 14 |
| GLA-464 | 400 | 600 | 3Ø-4W | 48 36 14 |
| GLA-664 | 600 | 600 | 3Ø-4W | 48 36 14 |
| GLA-864 | 800 | 600 | 3Ø-4W | 48 36 14 |
| GLA-1264 | 1200 | 600 | 3Ø-4W | 48 46 12 |
| GLA-1664 | 1600 | 600 | 3Ø-4W | 66 54 14 |
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