A compact, general purpose power supply offering 2, 4, 6, 8, 10 or 12V ac/dc at up to 5A. Voltage selection is via a key switch. The voltage may be set to any voltage and the key removed to prevent tampering. A common key profile is used for all units so the teacher only requires one key to operate all units. Both ac and dc outputs may be used simultaneously up to the rated current (5A).
Fitted with automatically resetting thermal cut out to protect against overloading or short circuits. Actual d.c. voltage is read on a digital display which demonstrates voltage drop with inceasing load. Combined fuse holder (2A mains fuse), switch and IEC connector. Four units fit into a Gratnells shallow tray for easy storage and transport.
The Volt Switch is a low voltage power supply giving 2, 4, 6, 8, 10 or 12V d.c. at up to 5 amps. Generally the a.c. voltages will be about 2V higher than the d.c. values.
The output is unregulated – this means that when a load is applied the voltage will drop
somewhat. a.c. and d.c. outputs may be used simultaneously up to a total of 5A.
The Volt Switch also has an electronic cut-out system to protect against short circuits and
3 x MES lampholder fitted with 6V, 60mA lamps; 1 x changeover switch; 2 x single pole switch
Product code: 385DDF5p
A compact kit to illustrate the way electricity is transported around the country. Comprises two boxes (step up substation and step down substation) and a set of “HIGH TENSION” transmission lines.
Uses touch proof connectors and comes complete with two SBC lamp holders and lamps. Additional equipment required are a standard lab pack capable of providing 12V a.c. at 2A (min) and 6 connecting leads.
Product code: NGPSUB