Tag Archives: uninterruptible power supply


Ever wondered why some plugs have 2 prongs while others have 3? Well, it is all about safety!  Electricity must flow in an uninterrupted circuit. Electrocutions often occur in homes due to defective products, such as appliances, power tools, and improper wiring. Children are particularly susceptible to electrocution not only because of their never ending curiosity but also because they can sense an electrical current as low as 0.006A (6mA). Faulty installations or repairs can also result in electrocution and are a primary cause of electrical accidents at home.

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Take a look at your home outlets for instance, the right smaller slot is for the HOT wire, this is where electricity comes from; the left wider slot is for the neutral wire, this wire completes the circuit and feeds the electricity back into the system.

Implement this idea into a larger power distribution system and you’ve created a huge problem. If excess voltage is applied to the circuit, like a lightning for example, all the excess energy must travel through your electrical network, potentially exploding everything connected to it. To prevent this, a third ground wire is connected straight to your breaker enclosure and is driven straight to the earth. Now when a lightning strikes into your system, the excess energy is directed into the land instead, but we have now created another problem. Before all of this, the only way to be shocked is when you touched both the neutral and hot wires, in that case your body would close the electrical circuit and the voltage would travel through you, from one wire to the other. Now, because of grounding, half of the electrical system is always indirectly connected to you, through your feet. Meaning you only need to touch a single wire or a metal object electrified by one to become an unfortunate circuit. This is why some appliances have the third prong. It is a safety feature for devices with metal cases. It protects the items from wear and tear, aging and faulty manufacturing. A hot wire from within the appliance could come loose and make contact with the metallic case, without the 3rd prong, you could be lethally shocked when touching it. Appliances with this third prong have a wire that connects directly from the metallic case and back to the outlet. Voltage along this path would trip the breaker and cut off the electricity that could potentially kill you.

Meiji Items with Grounding


Electrical Safety with Meiji Products

Prevent serious injury or an accident from happening in your home by using Meiji GFCI’s, AVRS (Automatic Voltage Regulator), UPS (Uninterrupted Power Supply), Wiring Devices, Extension Sets, and Timers which all have grounding or 3rd prongs.  The whole family of Meiji Electric’s GFCI’s MGU252MGF250GF250 and LG20 are classified as Class A in accordance with UL943. This is because all Meiji Electric GFCI’s have a 6mA sensitivity rating, unlike other GFCIs being sold in the markets which only have 15mA rating or even higher. UL Standard indicates the `let go factor’ of women and children should not be more than 6mA sensitivity rating because anything above this range is where `freezing currents’ start and it may not be possible to `let go.’ The Meiji GFCI is different from conventional receptacles, because in the event of a ground fault, it automatically trips, and stops the flow of electricity to your body, thus preventing serious injury. Meiji GFCI’s will work even without a grounded wire, even if a utility box isn’t grounded, installing a GFCI in it will still protect you (and your tools and appliances) from ground faults. The Electrical Code requires installing a GFCI for all wet areas, this is necessary to avoid ground fault which happens when electricity passes through our wet body before it reaches the ground.






Our newest addition is the MGU252, the only square GFCI with a combination of 1 international outlet and 2 USB outlets. It is designed for ease of use with all USB-dependent gadgets and devices while protecting you in wet prone areas. For your convenience, we will be giving a FREE custom-made 3’’x 3’’ utility box UB-252 so you don’t need to worry on where to get one.





So the next time you see that 3rd prong, just remember that it could save your life! Call us at 448-7423, 727-5790, 414-4012 and 413-6636 or email us at sales@meijielectric.ph for your various electrical requirements! You can visit our showrooms located at Unit 15 Landsdale Arcade, Mother Ignacia, Quezon City and 1 Mabolo Street, New Manila, Quezon City. You can also buy our items at your nearest ACE Hardware, Handyman or Ortigas Home Depot branches.


This entry was posted in AVR, Did You Know?, Extension Sets, GFCI, Meiji Electric, Outlets, Timers, Transformers, Uninterruptible Power Supply (UPS), Voltage Protector, Wiring Devices and tagged , , , , , , , , , , on by .

A person in a dark room with his palm in his face…

No… it’s not a scene in a horror or drama film but a typical scenario of a person who experienced a power outage while doing an extensive report in his computer without saving.

Exhausted, annoyed and irritated. These three words may shortly describe the way we feel. But cannot completely justify the feelings this horrific experience can cause. Maybe most of us have experienced this. And it can be a real hassle.  Imagine doing something for 5 hours, and then GONE! This was what happened to me. Heartbreaking!

But there is no reason for you and I to experience this anymore. With Meiji’s Uninterruptible Power Supply (UPS), you can finish all your work without any worry of data loss. Meiji UPS provides us with a 15-30minute backup power during power failure. This also depends on the load plugged into the Meiji UPS.  It’s like having a spare battery for your PC. UPS not only gives us more time to save our files but also to properly shutdown our computers to avoid damages to our internal hard drives. If you are still not convince of its necessity in our computer, I’ll show you why you should be!

Here are 3 reasons why having a UPS is important:


one of the most sensitive appliances we own is our personal computer. PCs are built with electronics and micro chips that can be very reactive to electrical surges. And as we had mentioned in our articles, one sure way to have an electrical surge would be a power outage. You wouldn’t want to keep buying a PC or having it repaired, do you?


Again by using Meiji UPS, there will be no reason for you to redo your work when power loss occurs. It beeps when power is out which alarms you to save your work immediately. Continuous beeping also sends its user the message that the Meiji UPS is low in battery


If you want a long-term investment, Meiji UPS is the one for you. It not just protects your computer from surges, but also has a built-in AVR that prevents surge from damaging the computer connected to the UPS. For the price of one, you can reap the benefit of two!meiji ups

Say no more to wasted time. Bid good bye to redoing hard work! It is better to be ready than sorry! Invest on something that will surely benefit you. With Meiji Uninterruptible Power Supply, work efficiency and security is ensured.  🙂

This entry was posted in Uninterruptible Power Supply (UPS) and tagged , , , , , on by .

uninterruptible power supplyUninterruptible power supply or uninterruptible power source (UPS) serves as a temporary “battery when the main power source is interrupted or cut off.

It protects users from losing important data especially documents that are still being worked on.

UPS also helps users to save and properly shut-off computers  even after power supply has been disrupted.

As good as it sounds, we still have to be smart consumers in choosing the best UPS in the market.

Let’s discuss to you the different types of UPS and from there, be the one to choose which qualities you want your UPS to have.

  • Standby

This is the most common type of UPS found in our homes. It is the one where our personal computers are plugged-in. As its description connotes, the power stands by for a few minutes only. Standby UPS offers the simplest flow of power source. With its high efficiency and convenient size, these types of UPS come in very handy at a relatively low cost.

  • Line Interactive

This type of UPS is used in a larger scope than that of Standby UPS. Line interactive UPS offers additional filtering and provides voltage regulation whenever needed after a down power is experienced. Your Line Interactive UPS offers a built-in AVR with it.

  • Standby-Ferro

Moving on, Standby –Ferro UPS is the type that offers high satisfaction on filtering and reliability when it comes to power interruptions. However, when coupled with generators or the modern computer load, it becomes unstable.

  • Double Conversion Online

A more advanced type of UPS is the double conversion online UPS. This type of UPS has its two components working together however, producing an inefficient result. Because of the heat generated when this UPS works, it can immediately affect the life span of the UPS, as well as the ones that are plugged into it.

  • Delta Conversion Online

When talking about large loads of power, this type of UPS is the best choice. It works just like the Double Conversion Online UPS but differs on the effect it causes itself and the ones plugged into it. Energy losses are also eliminated with this type of UPS.

No single type of UPS is meant to address the different needs when a disruption on power supply is experienced. It also differs on the type of users it will serve. Remember to pick the one that best suits your need.

This entry was posted in Uninterruptible Power Supply (UPS) and tagged , , , , , on by .