for aluminium box section frames, very high security versions are available
| Make | Clarke Instruments |
|---|---|
| Manufacturer | Clarke Instruments Limited |
| Model code | 9603F/S |
| Series | 960 ANSI Series |
| Electric Release Type | Mortice Release |
| Fail-Open/ Fail-Secure | Fail-Open |
| Holding Force kN | 10 |
| Additional info | for aluminium box section frames, very high security versions are available |