MODEL 472: POLY-PHASE PHANTOM LOAD

3 Phase, 4 wire 240V / 415V 50Hz + Earth 3 phase 10A circuit breaker used to protect the unit. Neon indicators indicate which phase is live. Output configuration is switchable from star to delta.

3 phase, 4wire star 240V/415V nominal. Maximum out is 0.7A, 160VA.
The output voltage is controlled by 3 “Variacs”, and is adjustable from 0-110%.
The output is not isolated from the mains supply

3 phase, 3 wire delta 110V nominal.
In this configuration the output from the 472 is isolated from the mains supply.
The N terminal is earthed to chassis and mains earth.
The output of VA and VC terminals is 110V nominal with respect to the N terminal.
The output voltage is controlled by 2 “Variacs” and is adjustable.