$ 63.71
| Potential isolation module | 6ES7138-4FD00-0AA0 | 
| Module-specific specifications | |
| Supported synchronous operation | no | 
| Number of outputs | 4 | 
| Cable length | |
| Unshielded | max. 600 m | 
| Shielded | max. 1000 m | 
| Parameter length | 1 byte | 
| Voltages, Currents, Potentials | |
| Nominal load voltage L+ (from power module) | 24 … 48 V DC; 24 AC … 230 V | 
| Polarity reversal protection | no | 
| Total current of the outputs (per module) | max. 10 A | 
| Potential isolation | |
| Between the channels | no | 
| Between the channels and backplane bus | Yes | 
| Permissible potential difference | |
| Between the supply voltage and the backplane bus | 75 V DC, 240 V AC | 
| Isolation tested | |
| Between the supply voltage and the backplane bus | 500 V DC, 1500 V AC | 
| Diagnostic alarm | no | 
| Data for selecting an actuator | |
| Short-circuit protection for the output | No, possible via PM-E or external | 
| Dimensions and weight | |
| Dimensions W × H × D (mm, the total dimensions depend on the selected terminal module) | 15 x 81 x 52 | 
| Weight | Approx. 33 g |