Benning DB 2. Demonstration case for the practical application and training of VDE 0100 installation test devices. Portable demonstration case for simulating safety tests on electrical systems in accordance with DIN VDE 0100/ 0105 (for the education and training of electricians). Realistic representation of a low-voltage installation in a single-family home (TN/TT system). Real components such as residual current circuit breaker, earthed socket, on/off switch with light and current measuring loop of a boiler. Simulated components with connection terminals for equipotential bonding rail, earthing, water pipes and lightning rod. Fault simulation can be set using 5 toggle switches. Measurement of protective conductor (RPE), insulation resistance (RISO), loop (ZL-PE) and line impedance (ZL-N). Testing of a residual current circuit breaker (tripping time, tripping current, contact voltage). Earth resistance measurement using different measuring methods. Voltage, current, frequency measurement and single-pole phase test. Power supply via 230 V mains connection. Robust and dust-proof housing design. Dimensions length 450 x width 330 x depth 110 mm. Weight 3.5 kg