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Bender - The Power in Electrical Safety

Bender is synonymous with quality worldwide. Our intention to focus on electrical safety is a pledge we make to both our existing and future customers. We have been doing our best every day for over 65 years with this goal in mind.

BENDER UK is part of the global, German owned BENDER Group. We are committed to using innovative technologies to find solutions for your particular sector and application in order to guarantee the ultimate in electrical safety for people and machines.

We are always there for you, providing comprehensive and informed advice, along with supporting you from planning, to implementation, and beyond. Our Service Dept. is available daily, enabling you to contact us whenever our expertise is required.

Electric Vehicles (EV)

  • Electrical safety for the HV system throughout the entire life cycle of the vehicle
    Continuous monitoring with ISOMETERs series IR155 allow insulation faults to be detected in HV systems at an early stage. In this way a high insulation level in the electric vehicle can be ensured throughout the entire life cycle and under all service conditions.
  • Tried and tested measurement technology
    Proven patented measurement technology allow for precise measurements, measurements of unsymmetrical insulation faults are also possible. Other advantages of the safety concept for electric vehicles are The automatic self-test and continuous monitoring of the connection to earth are further benefits of the safety concept for electric vehicles.
  • The compact, lightweight solution for modern e-vehicle structures
    Because it is small (only weighing 50 g), the PCB can easily be integrated into the information structure of an electric vehicle, using a PWM interface or an optocoupler, for example.

Smart Grid Charge Controller: Faster and Safer Charging of Electric Vehicles

The Bender CC611 charge controller, hereafter referred to as the charge controller, is the main component of a charge point and is designed for use in electric vehicle (EV) charging stations, wall boxes and street light charging points. The charge controller controls type 1 plugs and type 2 sockets. It enables a setup that is in accordance with current standards, such as IEC 62196, IEC 61851-1 and IEC 61851-22.

AC Charging

A prerequisite for safe charging of electric vehicles is to observe and follow certain safety rules in order to prevent hazards for the user, damage to the electric vehicle and damage to the infrastructure.
The charging of an electric vehicle is described in the standards IEC 61851-... resp. DIN EN 61851. Distinction is made between the modes 1-4. In mode 2, the use of a portable residual current protective device (ICCB, IC-RCD) is required, while in mode 3 a residual current device (RCD) and an overcurrent protective device is to be used, e.g. in the charging station.

DC Charging

DC charging stations are generally designed as IT systems (unearthed systems). In accordance with DIN VDE 0100-410:2007-6, an insulation monitoring device in accordance DIN EN 61557-8:200xx is required for insulation monitoring on the supply side.
In order to prevent an interaction between the insulation monitoring device in the vehicle and the insulation monitoring device in the charging station, the insulation monitoring device in the vehicle is usually deactivated during the charging process. The insulation monitoring device in the charging station will then monitor the entire charging circuit.


Phone UK: +44 (0) 1229 480123
Phone Ireland: +35315060611
Fax UK: +44 (0) 1229 480345

Low Mill Business Park
Ulverston Cumbria LA12 9EE
Office opening hours:
Mon - Thu 08:00-17:00
Fri 08:00-14:00