| product brand name | SENTRON | 
| Article Number | 3VA9988-0AA12 | 
| product designation | auxiliary switch | 
| Product version | Accessories for 3VA circuit breakers | 
| Accessories | Auxiliary switch | 
| General technical data | General technical data | 
| degree of pollution | 3 | 
| overvoltage category | III | 
| Voltage |  | 
| surge voltage resistance | 4 kV | 
| Rated operational voltage Ue at AC 50 Hz | 240 V | 
| operating voltage / at DC / rated value / minimum | 250 V | 
| Current | Current | 
| Thermal current limit Ith | 6 A | 
| operational current |  | 
| ● at AC-12 / at 12 V | 6 A | 
| ● at AC-12 / at 24 V | 6 A | 
| ● at AC-12 / at 48 V | 6 A | 
| ● at AC-12 / at 125 V | 6 A | 
| ● at AC-12 / at 220/240 V | 6 A | 
| ● at DC-12 / at 12 V | 6 A | 
| ● at DC-12 / at 24 V | 4 A | 
| ● at DC-12 / at 48 V | 2 A | 
| ● at DC-12 / at 110 V | 0.5 A | 
| ● at DC-12 / at 250 V | 0.25 A | 
| ● at DC-13 / at 12 V | 1 A | 
| ● at DC-13 / at 24 V | 0.8 A | 
| ● at DC-13 / at 48 V | 0.4 A | 
| ● at DC-13 / at 110 V | 0.2 A | 
| ● at DC-13 / at 250 V | 0.1 A | 
| ● at AC-15 / at 12 V | 3 A | 
| ● at AC-15 / at 24 V | 3 A | 
| ● at AC-15 / at 48 V | 3 A | 
| ● at AC-15 / at 125 V | 3 A | 
| ● at AC-15 / at 220/240 V | 3 A | 
| Mechanical Design |  | 
| Height | 56 mm | 
| Width | 7 mm | 
| depth | 30 mm | 
| net weight | 30 g | 
| tightening torque / with screw-type terminals / minimum | 0.4 N·m | 
| tightening torque / with screw-type terminals / maximum | 0.5 N·m |