Battery box BK-Ex 24V

The BK-Ex 24 V is an ideal accessory for mobile systems in Ex zones.

Having a high loading capacity it provides the necessary power supply in particular for mobile systems which cannot be permanently connected to the power supply. With weighing terminals iS30-Z2, iS50-Z2 and iS50-Ex the battery box BK-Ex 24V shows its full strength and reliably ensures power supply. The connection system located on the battery box can be separated in the Ex zone. Thus, the BK-Ex 24V can be replaced on the spot by a charged battery box and serves as a replacement battery box. The BK-Ex 24V is charged in the Ex-free area by means of the charger for BK-Ex 24V.

Area of Use

Battery box BK-Ex 24V is designed for explosive areas such as in the chemical industry. It is ideally suitable in connection with the following weighing terminals:

  • iS50-Ex
  • iS50-Z2
  • iS30-Z2


  • Plug-in connection: DXN1
  • Degree of protection according to 60529:2009: IP65
  • Approvals:
    • Directive 94/9/EC (ATEX)
    • IECEx
    • Processing: INMETRO (Brazil)
  • Marking:
    • II2G Ex db eb IIC T6 Gb
    • II2D Ex tb IIIC T80°C Db
  • It can be used as an external battery pack with the battery pack version of the following terminals: iS30-Z2, iS50-Z2, iS50-Ex
  • Easy separation of the pressure-resistant encapsulated plug-in connection

Product images and technical information could deviate and may not be available in your country.

During charging an integrated valve regulates the pressure compensation. This way, there is no need to open the housing during charging. As a matter of course, the BK-Ex 24V meets the requirements in accordance with ATEX and IECEx.

  • 24 V charging unit, primary power connector 220 V/240 V, 50 Hz with Euro plug, secondary 24 V/2.5 A, IP20 protection, output with connector for battery pack connection, charging must be carried out in an Ex-free zone
  • Battery holder made of stainless steel
  • Plug-in connection: DXN1


1.4301 stainless steel housing with handle


Operating time with Bizerba weighing terminal

approx. 10-35 hours, depending on configuration level



10 Ah, with deep discharge protection


It can be used as an external battery pack with the battery pack version for the terminals

iS30-Z2, iS50-Z2, iS50-Ex


Protection type

IP65 according to 60529:2009


Plug-in connection




24 V DC


Total weight

approx. 15 kg


Charger for battery box (optional)

Primary power connector 220 V/240 V, 50 Hz, secondary 24 V/2.5 A, IP20 protection

Output with connector for battery pack connection, charging must be carried out in Ex-free zone



EC type-examination certificate: SEV 15 ATEX 0134 X

IECEx Certificate of Conformity: IECEx SEV 15.0016X


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