Key Takeaways
- The right size starts with the refrigerator’s real electrical rating, not guesswork.
- A refrigerator’s compressor pulls extra power at startup, so the stabilizer should have generous headroom.
- A multi-minute restart delay is a quiet form of protection, because it helps prevent rapid restarts after a brief outage.
- A high watt rating without a real delay can still be a weak match for compressor protection.
- On Amazon Mexico (North America), the cleanest results usually come from searching the exact brand and model code.
Story & Details
In January, two thousand twenty-six, one household decision in Poza Rica, Veracruz, Mexico (North America) came down to a single goal: keep a refrigerator running more safely through unstable power.
At first, the hardest part was not price or brand. It was the missing model number. Without it, “best stabilizer” is just a slogan. Once the label details were known, the refrigerator could be named clearly: LG GB45SPT, with an additional code shown as GC-F569NQAM.AMCFMXM. With that, the sizing question stopped being vague.
The useful math was simple. The refrigerator’s published rating included a nominal current of 2.9 A at 127 V and 60 Hz, and a defrost heater power of 190 W. A quick running estimate comes from volts times amps: 127 V × 2.9 A lands near 368 W. That number is only the calm, steady part of the story. The compressor’s start is the stressful moment, and it is exactly where undersized protection fails.
That is why the delay matters. When power blinks off and back on, a compressor can be forced toward a rapid restart. Even if the refrigerator eventually recovers, that moment can mean a harder start, more heat, and higher current. A restart delay is built to wait a few minutes before restoring power, giving the system time to settle. It is not about comfort. It is about avoiding a rushed restart.
In the practical shortlist, two Steren units stood out because they pair sizing logic with a clear reconnection delay. Steren 920-200 is described as a 2,000 W unit with a seven-minute reconnection delay. Steren 920-050 is described as a 1,000 W unit that also uses a seven-minute reconnection delay. With a running estimate near 368 W, 1,000 W can be enough if the startup margin is respected. The 2,000 W class stays calmer, especially in places with frequent dips or brief outages.
A smaller related device also appeared in the same family: Steren 920-010, a high-capacity protector that includes a reconnection delay around three minutes. It can be useful as a protection layer, but it is not the same idea as a stabilizer designed to regulate voltage during normal swings.
A Koblenz option also entered the set: Koblenz RI-2002, described as a regulator for motor appliances, rated at 2,000 VA / 1,500 W, with a defined input operating range and an automatic disconnect at high voltage. It sits in a comfortable capacity band for many refrigerators. The open question is the delay: a motor-friendly design is valuable, but compressor protection is strongest when a multi-minute restart delay is clearly stated.
The unit already on hand added a real-world test. The label on the ISB Sola Basic CVR 2500 lists 2,500 VA (1,500 W) capacity, an input operating range of 80–140 V, and an output range of 104–127 V. On capacity alone, it comfortably covers a refrigerator whose steady draw is far below 1,500 W. The concern is behavioral, not numerical: the unit restores power immediately after a brief interruption. Its published descriptions focus on voltage correction, not on a multi-minute compressor delay. In a stable grid, that may be fine. In a noisy grid with quick on-off flickers, it is a weaker match than a device that waits by design.
A second product listing sharpened that contrast. A BeaoWink unit is described as 3,000 VA / 2,000 W with dual screens and a USB port, and it mentions a delay protection of five seconds. Five seconds is closer to a pause than a compressor-protecting delay. It can still be a capable stabilizer by wattage, but its stated delay is not in the same class as seven minutes.
For shopping on Amazon Mexico (North America), model-code searching tends to beat category browsing. Searches that often work well include the full brand and model together, such as “Steren 920-200,” “Steren 920-050,” “Steren 920-010,” and “Koblenz RI-2002.” Adding “voltage regulator” or “refrigerator” can help when listings are messy.
A small Dutch note can help in technical shopping situations:
Dutch phrase: “Heeft dit apparaat inschakelvertraging?”
Simple meaning: asking whether the device has a restart delay.
Word-by-word: “Heeft” (has) “dit” (this) “apparaat” (device) “inschakelvertraging” (switch-on delay).
Tone and use: neutral and polite in stores; a shorter variant is “Inschakelvertraging?” when pointing at the specification line.
Conclusions
For an LG GB45SPT refrigerator in Poza Rica, Veracruz, Mexico (North America), the safest choice is not the smallest unit that can run the load. It is the unit that combines enough headroom for startup with a real, multi-minute restart delay.
A 2,000 W stabilizer with a clear seven-minute reconnection delay is an easy, low-stress match. A 1,000 W stabilizer with the same delay can also fit when the startup margin is respected. A 1,500 W unit without a clearly stated delay, even if it can regulate voltage well, is a mixed fit when quick outages are common—because the compressor protection is not only about watts, but also about waiting.
Selected References
[1] https://www.lg.com/mx/refrigeradores/refrigeradores-bottom-freezer-congelador-abajo/gb45spt-sp2/
[2] https://www.steren.com.mx/compensador-de-voltaje-para-electrodomesticos-de-2000-w.html
[3] https://descargas.steren.com.mx/920-200-V0.1-instr.pdf
[4] https://www.steren.com.mx/compensador-y-regulador-de-voltaje-de-1000-w-para-electrodomesticos.html
[5] https://descargas.steren.com.mx/920-050-V1.1-instr.pdf
[6] https://www.steren.com.mx/protector-contra-variaciones-de-voltaje-de-3600-w-para-electrodomesticos.html
[7] https://www.koblenz.com.mx/products/regulador-para-refrigeracion-y-lavado-ri-2002
[8] https://www.isbmex.com/producto.php?id=98
[9] https://www.mercadolibre.com.mx/3000va2000w-regulador-de-voltaje-beaowink-con-2-pantalla-digital-lcd-a-colorinterfaz-universal-y-usb5v2arango-de-voltaje-90-145-vpara-120v-refrigeradoresmicroondaslavadorastvs-color-negro/p/MLM62770164
[10] https://www.youtube.com/watch?v=eMq9j0KY2Ak
[11] https://www.amazon.com.mx/STEREN-Compensador-Regulador-Voltaje-Electrodom%C3%A9sticos/dp/B07VKFGB43
Appendix
Ampere. A unit of electric current; it expresses how much current an appliance draws while operating.
Apparent power. A rating measured in volt-amperes; it is often used on regulators and can differ from watts because of power factor.
Compressor. The motor system in a refrigerator that moves refrigerant and creates cooling; it often needs a higher burst of current at startup.
CVR 2500. A model name used for a household voltage corrector rated at 2,500 VA (about 1,500 W), intended to keep output voltage in a safer range.
Defrost heater. A heating element that melts frost; it runs only at certain times and has its own power rating.
Dutch phrase practice. “Heeft dit apparaat inschakelvertraging?” is a clear way to ask about restart delay; “Heeft” means has, “dit” means this, “apparaat” means device, and “inschakelvertraging” means switch-on delay.
Fuse. A safety part designed to open the circuit when current is too high, helping protect equipment and wiring.
GB45SPT. An LG refrigerator model name used to identify the exact product so that electrical ratings and protection choices can be matched correctly.
Hertz. A unit of frequency for alternating current; household power is commonly 60 Hz in Mexico (North America).
Horsepower. A unit sometimes used for motors; when shown on a regulator, it is a rough indicator of motor-start capability.
Inrush current. The brief surge of current a motor can draw at startup; this is why extra capacity and restart delay matter.
Joule. A unit of energy; in protection devices it often describes how much surge energy can be absorbed.
Nominal current. The normal, expected current draw listed for an appliance under typical conditions.
Power factor. A value between 0 and 1 describing how effectively current becomes useful power; it is why VA and watts are not always the same.
Restart delay. A built-in waiting period before power is restored after an outage; it helps reduce stress on a refrigerator compressor.
Volt. A unit of electric potential; many appliances in Mexico (North America) use a nominal 127 V supply.
Voltage compensator. A device that corrects voltage up or down using transformer steps, aiming to keep output closer to a safer range.
Voltage regulator. A broader term for devices that maintain output voltage within a safer range when input voltage rises or falls.
Watt. A unit of real power; a simple running estimate can be made from volts times amps for many household loads.
My Diary - Leonardo Cardillo 