Can you use a 2 pole contactor?
The quick answer is yes.
What does definite purpose mean on a contactor?
Definite Purpose Contactors were originally designed for use in HVAC industries which previously had been using less specialized NEMA rated contactors. The “Definite Purpose” simply means that contactor was made specifically for HVAC-like applications and maintains ratings for those.
Can I replace a 30 amp contactor with a 40 amp?
The contact current rating is the maximum value. A 30 Amp one can be replaced with a 40 Amp one. It fits in the space if it’s not too big.
What is single pole vs double pole?
Both single pole and double pole switches can be either single or double throw. A pole refers to the number of separate circuits a switch can control, a single pole switch can operate one circuit whereas a double pole switch can control two circuits. A throw refers to how many positions can be activated by a switch.
What is the difference between a relay and a contactor?
A contactor joins 2 poles together, without a common circuit between them, while a relay has a common contact that connects to a neutral position. Additionally, contactors are commonly rated for up to 1000V, while relays are usually rated to only 250V.
What is a definite major purpose?
Your major definite purpose is a very specific statement which has the power to influence your subconscious mind. Your burning desire will in turn will force you to take daily action that moves you towards attaining your goal.
Can you use a definite purpose contactor for lighting?
Definite purpose contactors for lighting systems can be controlled either manually or automatically, and are typically used in lower demand, low-cost applications. Both single pole and multi-pole contactors for lighting systems are available.
Why would a single pole contactor be used as opposed to a double pole contactor?
Carriers would use a single pole contactor to bleed a small amount of current through the start winding, as a crankcase heater. This does about nothing. Manufacturers use a single pole because its cheaper. Nothing wrong with going to 2 pole.
Can a contactor be oversized?
A contactor is a glorified switch and the ratings are for its own function. You want to avoid under-sizing a contactor, but you can oversize.
How many AMPS is a 2 pole contactor?
2 pole, 30 amp, non-reversing, definite purpose contactor, 24V AC coil, industry standard mounting plate Category: Definite Purpose Contactors – 2…
What is a DP contactor and what are its applications?
The DP Contactor was developed for applications such as HVAC, refrigeration, fans, blowers and welders for OEMS and manufacturers of machinery. However, the market for DP contactors has grown to include many more commercial, construction and industrial applications
What is the difference between Class 45 and 42 DP contactors?
However, the market for DP contactors has grown to include many more commercial, construction and industrial applications Class 45 and 42 DP Contactors have industry standard mounting but they offer so much more. The Siemens DP Contactors with their compact sizing save space allowing for smaller panels, more wiring room, and easy retrofits.