What is the difference between 50, 60, and 400 HZ?
Most AC (alternating current) relays operate on standard frequencies and voltages. 50 HZ FREQUENCY: This is a standard alternating current frequency used mostly in Europe, Africa, Australia and Asia. Voltages commonly used with this frequency are: 11 5VAC 10, 115/220 30, 220VAC 10, 220/440 30. 60 HZ FREQUENCY: This is a standard frequency used primarily in the USA and Canada, but it is also used in many other countries. The typical voltages used in households and industries are 11 5VAC 10, 115/200 30, 220/400 VAC. In some instances heavy industry will use 440/66OVAC 30. 400HZ FREQUENCY: This is a standard frequency used in most commercial/military aircraft. It is also used on Navy aircraft carriers, but primarily to serviceaircraft. Most aircraft utilize the 115/208 VAC 400 HZ WYE system, except some newer aircraft, which use 230/400 VAC 400 HZ because of its lighter weight generator system. The 400 HZ frequency is used in aircraft systems primarily because the generators are much ligh
