SSRK-2
Current transformer
The SSRK-2 to SSRK-6 current summing transformers are specifically designed for use with split-core current transformers (CTs). They enable the summing of 2 to 6 currents in the secondary circuit of low-power current transformers. Their compact design and high accuracy (Class 0.5) make these transformers ideal for energy measurement in low-voltage networks. The low burden of just 0.2 VA is specifically tailored to the low output power of split-core current transformers.
- Dimensions (W × H × D)
- 45 × 115 × 73 mm
- Housing
- D10
- Number of inputs
- 2
- Main transformer
- Equal
- Weight
- 400 g
| Dimensions (W × H × D) | 45 × 115 × 73 mm |
| Housing | D10 |
| Number of inputs | 2 |
| Main transformer | Equal |
| Weight | 400 g |
Electrical properties
| Max. Rated voltage | 720 V |
| Test insulation voltage | 4 kV, 1 min. |
| Rated short-time thermal current (Ith) | 60 x Ir |
| Dynamic rated current (Idyn) | 2.5 x Ith |
| Frequency | 50 - 60 Hz |
| Self-consumption | <0,1VA per channel |
| Insulation class | E |
Mechanical properties
| Housing | Made of self-extinguishing ABS UL94 V-0 |
| Degree of protection | IP40 |
| Operating temperature | –5°C bis +55°C |
| Relative humidity | 5–85%, non-condensing |
| Mounting | DIN rail DIN EN50022 or screw mounting |
| Secondary connections | Screw terminals, max. 1.5 mm² |
| Max. Ratio for unequal main transducers | 1:10 |
| Norm | IEC 61869-2 |
Types
| Output | Cl. | Rated current A | VA | |
|---|---|---|---|---|
| 1 | 5 | |||
| 1A | 0.5 | – | ||
| 5A | 0.5 | – | ||
| Output | Cl. | Rated current A | |
|---|---|---|---|
| 1 | 5 | ||
| 1A | 0.5 | – | |
| 5A | 0.5 | – | |
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