| Switch | Bystander Sound Pressure (at 27°C) | Declared Sound Power (at 27°C) |
|---|---|---|
| SLX9740-40C-AC-F (SLX 9740-40C with front-to- back airflow | 55 dB(A) | 7.5 bels |
| SLX9740-40C-AC-R (SLX 9740-40C with back-to- front airflow | 59.4 dB(A) | 7.9 bels |
| SLX9740-80C-AC-F (SLX 9740-80C with front-to- back airflow | 59.5 dB(A) | 7.8 bels |
| SLX9740-80C-AC-R (SLX 9740-80C with back-to- front airflow) | 66.7 dB(A) | 8.5 bels |