January 1, 2023

Ohm’s Law

In other instances another material may impede the flow of current, but still allow some though. In electrical circuits, these components are often called resistors. Yet other materials let virtually no current though and these materials are called insulators.
(Source: https://www.electronics-notes.com/)

Variations of Ohm’s Law

One Piece and Two Piece Bands:

Parallel and Series Wiring

3 Post Terminal Wiring

Dual Voltage

3 Phase

Wiring Instructions

Should You Connect Heaters
in a “Series Circuit”?

This question arises when more than one heater is to be connected to electrical power.
– Usually any number of heaters can be connected in a “Parallel Circuit”.
– Usually only two heaters may be connected in a “Series Circuit” as it is much more complicated to do so.
The main disadvantage of a “Series Circuit” is that there is only one path in which the current can flow. Opening or breaking a Series Circuit at any point will cause the entire circuit to “open” or stop operating:

• In a “Series Circuit” every heater must function properly for the entire circuit to operate. If any heater fails, all other heaters within that circuit will not receive power to operate, whereas in a
  “Parallel Circuit” the failure of one heater will not affect the other heaters in that circuit.
• If two heaters are connected in a “Series Circuit” the voltage of each heater must be the same and equal to “one half” of the total voltage available. Example: Let’s say you have two 240 volt heaters connected in series, therefore you must provide a 480 volt supply for the heaters to function properly.
• The wattage of each heater is a “Series Circuit” must also be of the same value. If the wattage and voltage for each heater are not the same value the heaters will not split the voltage equally,
  resulting in improper heating.

If you must wire heaters in “Series” the basic rule of thumb is that only two heaters are wired together, and those heaters must have the same voltage and wattage specifications.