SIT Pits
The Series Isolation Transformer (SIT) pit used for airfield runway lighting comprises a polymer concrete pit and collar with a galvanised lid. A polymer concrete stand is also available to support the series isolation transformer above the base of the pit.
Length: 650mm or 662mm
Width: 550mm or 562mm
Depth: 610mm, 650mm or 890mm
SIT Pits - Shallow Pit - features & benefits
SIT Pits - Deep Pit - features & benefits
SIT Pits - product details
Shallow Pit
Parts List
| Descriptions | Part No | Overall Length (mm) |
Overall Width (mm) |
Depth (mm) |
Weight (kg) |
Spec Info |
|---|---|---|---|---|---|---|
| Shallow SIT Pit with Deep Collar * | 143068 | 662 | 562 | 650 | 156 |  |
| Shallow SIT Pit with Shallow Collar | 143122 | 650 | 550 | 610 | 129 | |
* as per Department of Defence standard MIE-AGL
Deep Pit
Parts list
| Descriptions | Part No | Overall Length (mm) |
Overall Width (mm) |
Depth (mm) |
Weight (kg) |
|---|---|---|---|---|---|
| Deep SIT Pit with Shallow Collar | 143069 | 650 | 550 | 890 | 154 |
All components
| Descriptions | Part No | Overall Length (mm) |
Overall Width (mm) |
Depth (mm) |
Weight (kg) |
|---|---|---|---|---|---|
| SIT Pit Shallow Base (450mm deep) | 142320 | 450 | 350 | 450 | 25 |
| SIT Pit Deep Base (730mm deep) | 142321 | 500 | 400 | 730 | 50 |
| SIT Pit Deep Collar & Lid Assembled | 142958 | 662 | 562 | 200 | 127 |
| SIT Pit Shallow Collar & Lid Assembled | 142322 | 650 | 550 | 160 | 100 |
| SIT Pit Support Stand | 142319 | 230 | 200 | 150 | 4 |
| Universal Lifting Key | 84306 | - | - | - | 0.6 |
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