Summator
Precise detection of fault currents
The summation current sensor is a specialized measuring instrument that plays a crucial role in electrical safety technology. As a high-precision measuring instrument, it records the sum of all currents in a system and thus enables the reliable detection of residual currents.
In the normal operating state of an electrical system, the sum of all incoming and outgoing currents is zero. The summation current sensor continuously monitors this balance. If a residual current occurs, for example due to an insulation fault or an earth fault, the residual current device registers this deviation immediately. This precise measurement enables a rapid response to potentially dangerous situations.
For mounting on shielded and earthed medium-voltage cables
for Earth 4.0, Earth Zero, Earth Zero Flag
| Dimensions for conductors [mm] | Conductor length [m] | Art. No. |
|---|---|---|
| up to 130 mm | 3.00 | 49-6013-029 |
For mounting on insulated medium-voltage cables
for Opto R+D 3.0
| Response values [A] | Cable length [m] | Art. No. |
|---|---|---|
| (10), (20), 40 or 80 | up to 115 | 49-6014-007 |
| 40, 80, 120 or 160 | up to 115 | 49-6014-009 |
Other encoders and sensors
Phase current encoder
Phase current sensors
