RESISTIVE LOAD Description and Specifications for Lab Tenders
It must consist in a single or three-phase resistive step-variable load.
Housed in a metallic box.
The load shall be composed of a rugged metal structure and of a front
On the front panel all the controls, the protection, the output
terminals and a clear synoptic diagram, shall be collected.
The load shall be composed of resistances,
with possibility of star, delta and parallel connection, controlled by
threeswitches. This item must be provided also with fuses protection.
As a function of the switch positions, there shall be the following
Position Resistance Max power per phase
1 1050 Ohm 46 W
2 750 Ohm 65 W
3 435 Ohm 110 W
4 300 Ohm 160 W
5 213 Ohm 230 W
6 150 Ohm 330 W
7 123 Ohm 400 W
Maximum power in single or three phase connection must be 1200 W.
Rated voltage in star
connection must be 380 V, in D connection must be 220V, in single-phase must be
220V. 4 mm. safety terminal included on the front panel for the electrical