3NJ6940-3BL13

**3NJ6940-3BL13** 

**Data sheet** 

accessory for Switch disconnector with fuses In-line design, pluggable current transformer 600/1 A, Cl. 0.5, legal-for-trade calibrated, 5 VA 

|**Model**||
|---|---|
|**product brand name**|SENTRON|
|**product designation**|Current transformer|
|**design of theproduct**|accessoryfor switch disconnector with fuses 3NJ6|
|**productquality calibrated**|Yes|
|**operating apparentpower rated value**|5 VA|
|**operating voltage**|0.72 kV|
|insulation voltage rated value|3 kV|
|**designation of overcurrent limiting factor**|FS 5|
|operational current rated value maximum|720 A|
|**current**||
|● at input rated value|600 A|
|● at output rated value|1 A|
|**accuracy class of the current transformer**|class 0.5|
|**value range of the operating frequency**|50/60 Hz|
|**Protection class**||
|**protection class IP**|IP20|
|**suitability for use for outside use**|No|
|**suitability for use for interior use**|Yes|
|**product feature touch protection**|Yes|
|**Short circuit**||
|formula for rated short-time thermal current (Ith) for 1 s|60 x Ipr|
|accordingto IEC 61869-2||
|formula for rated dynamic current (Idyn) according to IEC|2.5 x Ith or 150 x Ipr|
|61869-2||
|**Connections**||
|type of electrical connection at output|screw-type terminals|
|**Mechanical Design**||
|**height**|88.5 mm|
|**width**|70 mm|
|**depth**|58 mm|
|**fastening method**|mounting|
|**diameter of inlet opening**|32 mm|
|**outer diameter of thepush-through conductor maximum**|32 mm|
|**Net Weight**|0.334 kg|
|**Environmental conditions**||
|**ambient temperature during operation**||
|● minimum|-10 °C|



Subject to change without notice © Copyright Siemens 

3NJ69403BL13 Page 1/3 

6/4/2026 

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**last modified:** 

6/13/2025 

Subject to change without notice © Copyright Siemens 

3NJ69403BL13 Page 2/3 

6/4/2026 

Subject to change without notice © Copyright Siemens 

3NJ69403BL13 Page 3/3 

6/4/2026