Should Your Fridge Be Plugged into a Power Converter/Power Box?
To answer the question, “Should your fridge be plugged into a power converter/power box?” simply — No. While there are a number of valid reasons, the largest reason is that this type of equipment cycles on and off, which can overwhelm a surge-protective device.
Power Converters, Power Boxes, and Surge Protectors — Oh My
A power inverter and power converters work on the same principle but perform opposite functions. Inverters are most commonly in use with solar power systems, where they convert the Direct Current (DC) from photovoltaic cells into Alternating Current (AC). A power converter changes AC power to DC power.
The broad definition of a power box is that it is simply a transformer. A power box serves as a router to supply power from the main power supply (the grid) to the houses within a neighborhood. A secondary use for the phrase is a small, portable power supply used for emergencies or other low power periods.
If you suffer a power outage and use a portable generator, you should use a dedicated cord to plug your refrigeration equipment directly into the power outlets on the generator. If your business has a backup generator, the wiring should be consistent with the structure of your normal operating parameters, meaning your fridges will remain in their usual power outlets.
A surge protector is not the same as a power strip. Although similar, the two are uniquely different. A power strip is just that — a strip of outlets with one cord that uses one wall outlet. It allows a user to plug multiple items into one outlet. It is basically just a bigger, bulkier extension cord.
A surge protector is very similar, although it contains circuitry to prevent surges. A surge is a rapid power draw or supply. The surge protector provides a level of protection between the power supply (the grid) and your appliances. These are very beneficial in protecting computers and electronic equipment. Not so much for refrigeration equipment.
Providing the Best Power Supply for Refrigeration Equipment
Power supplies carry power from the transformer through the main electrical panel with breaker switches, then throughout a building. Each breaker delivers a set amount of electrical power for lighting, outlets, HVAC, and other electrical equipment.
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In short, you cannot operate equipment that uses a total of 45amps with a breaker that has a rating of 30amps. When you use power strips or surge protectors, it permits you to plug in more equipment than the breaker rating permits.
In the case of refrigeration units, they cycle on and off as needed to maintain the set temperature. If you have two reefers plugged into one power strip and they cycle at the same time, you will cause the breaker to overload and trip.
Refrigeration units should never use a power strip or surge protector. They should have a direct connection to a wall outlet.
Should Your Fridge Be Plugged into a Power Convertor/Power Box?
If your business uses several refrigeration units, each should be on a separate circuit. Most business electrical systems include design considerations for the type of equipment that will be in use. It is best to contract the services of an electrical company that can make appropriate adjustments to existing electrical systems to accommodate your equipment.
Should Your Fridge Be Plugged into a Power Convertor/Power Box? No, it should not.
If you have questions about your refrigeration equipment, the professionals at Elite Refrigeration Services Inc can help. Our highly-trained technicians are tops in the field. You can use the handy Contact Form to ask questions or arrange for a technician to contact you. Alternately, you may call us at 1-914-222-9173.
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