104 Building System Technology > Introduction to Building System Technology Selective RCD EduTrainer The Selective RCD EduTrainer allows for treatment of the topic of selectivity for residual current circuit breakers in mains systems and protective measures. The selective RCCB ideally supplements the RCD A/B EduTrainer, so that it can be easily integrated and its essential characteristics can be elaborated. The locations of all connections are standardised and are laid out as safety sockets. Technical data – Input voltage: 3 x 400 V AC – Output voltage: 3 x 400 V AC – Front panel: 133 mm x 297 mm – Console housing with rubber feet for use in an A4 frame or on a table – Connection via 4 mm safety plugs Order no. 574173 Power Supply Systems and Protective Measures TP 1111 Possibilities of Expansion RCD A/B EduTrainer The RCD A/B EduTrainer covers the topic of residual current circuit breakers in mains systems and protective measures. The two basic types of RCD, type A and type B, are compared with each other and their essential characteristics can be elaborated. The board is equipped with a fault simulator at which various types of voltage can be selected for the simulation of leakage current including alternating voltage, pulsed direct voltage and smoothed direct voltage. An additional voltage tap for expansion circuit breakers/RCCBs enables optimal integration into the equipment set for mains systems and protective measure. The locations of all connections are standardised and are laid out as safety sockets. Technical data – Input voltage: 3 x 400 V AC (50 Hz) – Output voltage: 3 x 400 V AC – Tap for expansion circuit breakers/ RCCBs – Pushbutton and adjustment potentiometer for fault simulation – Voltage type for leakage current can be set to alternating voltage, pulsed direct voltage or smoothed direct voltage – Max. leakage current: approx. 40 mA, option for looping in an ammeter – Front panel: 266 mm x 297 mm – Console housing with rubber feet for use in an A4 frame or on a table – Connection via 4 mm safety plugs Order no. 574174
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