Siemens APT
ER Series(3A), Intermediate Relays, APT
Model: ER
Key specifications
- Rated impulse withstand voltage 2500V
- Rated thermal current ER4C: 3A
- Degree of protection IP40
Technical parameters
| Product specification | ER4C | |
| Contact pole number and type | 4C/O changeover contact | |
| Contact material | Silver alloy | |
| Conventional thermal current | 3A | |
| Compliance | IEC61810-1, GB/T21711.1 | |
| Product certification | UL/CQC/CE | |
| Ambient temperature | Storage | -40°C~+85°C No freezing or condensation |
| Working | -25°C~+55°C No freezing or condensation | |
| Ambient humidity | Storage | 5~85%RH(no condensation) |
| Working | 5~85%RH(no condensation) | |
| Protection class | IP40 | |
| Rated insulation voltage(V) | 250V | |
| Insulation resistance | 100mΩ | |
| Rated impulse withstand voltage(V) | 2500V | |
| Vibration resistance | 10-55Hz Dual amplitude 1.0mm | |
| Impact resistance | Working status 200m/s2 and non-working status 100m/s2, 11ms | |
| Pull-in time | ≤20ms | |
| Release time | ≤20ms | |
| Power frequency withstand voltage | Between contact and coil | AC 1500V 50Hz·1min |
| Between homopolar contacts | AC 1000V 50Hz·1min | |
| Between heteropolar contacts | AC 1500V 50Hz·1min | |
| Electrical endurance | 1.2×105 times | |
| Mechanical endurance | 2×107 times | |
| Weight | About 30g | |
| Min. package quantity | 20pcs | |





