Earth Leakage Relay Philippines: Brands, Models and How to Choose a Supplier

Purchasing earth leakage protection devices in the Philippines differs from purchasing circuit breakers due to several factors, including the voltage of 230 V at the frequency of 60 Hz, the code applicable (PEC instead of NEC), the mandatory presence of a PS Mark or an ICC sticker on every device sold on the Philippine market, and the decision on which type of sensitivity to use to make it either a device protecting a person or just an appliance. This guide will help you figure out the meaning of the terminology used, the requirements of the Philippine Electrical Code, the brands available in the local market, their prices, and the means of choosing the supplier without encountering the fraud.

Summary: Earth leakage relays, RCDs, RCCBs and ELCBs all refer to devices that trip when current flows out of the circuit instead of returning via the neutral. According to PEC 2017 (Article 2.10.1.8), Filipino households should be provided with Class A GFCI protection for bathrooms, kitchens, outdoor areas, laundries and garages, at a 4-6 mA level, and 30 mA residual current protection for socket outlet circuits. A 30 mA RCD is not an exact substitute for a 4-6 mA GFCI and PEC requires that AHJ approval must be obtained in case an RCD or RCBO is used instead of a receptacle. Expect to spend ₱300 – ₱1500 on a household 2-pole device, ₱1500 – ₱4500 on a 30 A RCBO, and ₱2500 – ₱9000 on a 4-pole industrial type equipment. Meiji, Omni, Royu, Koten and Cosine are popular among local users while Schneider, ABB, Siemens and Mitsubishi Electric are positioned higher than them, and HUYU provides the same products but charges 10% – 20% less than the leading international players.

What an Earth Leakage Relay Actually Is

First, let’s discuss terminology because the Filipino buyers refer to several different terms denoting probably two or three different items.

An earth leakage relay is a general term that refers to a device that measures the vector sum of the currents in all conductors using a core-balance current transformer (CBCT). The currents going out in the phase wires should be equal to the sum of the currents on the neutral conductors. Thus, if a few milliamperes are missing, it indicates that the current has been leaking through another path like a person, water, or a malfunctioning appliance frame.

There are many device types that are based on this concept and share the same acronyms.

Term	Full name	What it does	Overcurrent trip
ELR	Earth leakage relay	Residual current sensing only, often a separate relay driving a shunt trip	No
RCCB / RCD	Residual current circuit breaker	Residual current sensing, DIN-rail mounted	No
RCBO	Residual current breaker with overcurrent	Residual current plus overcurrent in one module	Yes
GFCI	Ground fault circuit interrupter	Personnel protection at 4–6 mA, per UL 943	Sometimes
ELCB (current-operated)	Earth leakage circuit breaker	An older name for a modern RCD	No
ELCB (voltage-operated)	Earth leakage circuit breaker	Detected a voltage rise on an appliance chassis	No

The last row is more significant than it appears. Voltage-operated ELCBs are of antiquated technology. Their operation relied on the earth path being perfect, hence they could fail silently in the very circumstance they were supposed to prevent. They do not conform with current standards according to the PEC, and any supplier who has one as equivalent to an RCD is a bit of a giveaway regarding the intelligence of their catalogue.

The full explanation of the acronym and how the sensing coil works is worth reading before you specify anything, and it is covered in this breakdown of what ELR stands for.

What the Philippine Electrical Code Requires

The Philippine Electrical Code is a product of the Institute of Integrated Electrical Engineers of the Philippines in conjunction with the Board of Electrical Engineering and the legal underpinning of Republic Act 7920. The current version of PEC is PEC 2017, which is modeled after the 2017 NE C.

There are two articles that concern ground-fault protection. The first one is Article 2.10.1.8 which concerns ground-fault circuit interrupters that protect people and the second one is Article 2.30.7.6 which is concerned with the ground-fault protection of appliances.

The regulation regarding personal protection is particular, as it does not actually function like the 30 mA RCD common for Europe. According to PEC 2017, both home and non-home dwellings should have Class A ground-fault circuit interrupter systems with sensitivity between 4 mA and 6 mA for any apparatus in the following premises:

in bathrooms, all 125–250 V sockets in use
in kitchens, countertop receptacles and any socket located less than 1.8 m away from sinks
in the areas outside the building where all sceptical outdoor sockets and plugs are located under the cover
in laundry areas, all sockets located near laundry sinks and washing machines
in garages and workshops
within less than 1.8 m from tubs and showers

In addition, the PEC stipulates 30 mA residual-current safety measures in household socket circuits. This is an extra option and not a replacement for the 4-6 mA requirement.

What buyers misunderstand is the difference between 30 mA RCDs and Class A GFCIs in terms of their sensitivity levels. The 30 mA RCD operates at approximately five to seven times higher current but serves the same purpose, just in different ways: a GFCI is adjusted to go off before person loses his or her ability to control their muscles while a 30 mA RCD has less floor of safety and is still able to provide a person with some protection when he or she is in a water hazard zone. The same way PEC considers the type of device to be standard and does not treat this type device as an equivalent substitute for GFCI. The devices that have ratings of 5-10 mA and that comply with either IEC 61008 or IEC 61009 standards may be able to accomplish the same results under proper conditions but the code requires prior agreement on such procedure in written form from the appropriate authorities before the final design is completed.

One very simple solution that eliminates the necessity of all these disputes is the use of two-stage system. With this approach one installs a 30 mA RCD at the electricity control panel and a Class A GFCI or super sensitive device immediately at the wet area. Such an approach helps fulfill both sets of requirements, and a malfunction on one of the points would not have serious consequences.

Sensitivity, Type and Where Each One Belongs

Two specifications decide what a device can actually do: its trip sensitivity and its Type designation.

Sensitivity	What it protects	Typical use in the Philippines
4–6 mA (Class A GFCI)	People	Bathrooms, kitchens, outdoor outlets, laundry
10 mA	People, higher margin	Special applications, medical locations
30 mA	People	The standard for socket-outlet circuits and final circuits
100 mA	Equipment and fire	Sub-main protection where selectivity is needed
300 mA	Fire	Main incomer, in addition to — never instead of — 30 mA downstream

The Type designation indicates the fault current waves that are recognized by the equipment, and this is where many installations today fail. With solar inverters, variable frequency drives and EV chargers becoming the norm in buildings all over the Philippines, a Type AC device will only detect sinusoidal alternation residual current and cannot recognize the smooth DC component produced by these devices. Type A can detect both alternating and pulsating DC. Type B detects smooth DC as well. Type B is the right specification for any equipment comprising a rectifier, inverter or DC link, and this is not merely an upgrade with a fancy name.

Conditions in the Philippines That Change the Specification

Three local elements cause the design to deviate from the European standard.

230 V at 60 Hz. The electricity provided in the Philippines is usually 230 V single-phase at 60 Hz, with 3-phase 400 V being an option. Devices sold in these territories must work at the frequency of 60 Hz; devices that run only at the frequency of 50 Hz perform in an unpredictable manner, which makes the trip-time information unreliable.

Variety of earth arrangements. Electrical installations in the Philippines consist of different combinations of TT and TN-C-S systems depending on the power supply and the construction date. The type of earthing used defines whether an RCD by itself is sufficient or it has to be supplemented with an earth electrode that corresponds to the required standards and helps to calculate the fault-loop impedance. Mistaken assumptions about this are among the main reasons why newly installed RCDs sometimes fail to function as expected. The explanation of such systems is provided in the overview of TN-C-S and some other types of earthing systems.

Lightning. The average number of thunderstorm days in low-lying areas of the Philippines amounts to 25-50 a year, and those in mountainous regions experience even more. There are two direct consequences of thunderstorms for the placement of leaking-current devices. First of all, an earth electrode should be taken into account, and the minimum requirements state that it should be made of copper-plated steel and have 2.4 m and 15.87 mm (5/8 in) in diameter. Code compliance may indicate about 25 Ohms, although for reliable RCD operation, the value of 5 Ohms and over is favorable. Secondly, surge protection should be upstream of the leaking device.

Brands You Will Actually Find in the Philippines

The local market is perfectly divided between Filipino brands with national distribution and those that are foreign but have a formal presence. Below figures show some street prices in 2026 for a domestic device of 2 poles that vary on the basis of ampere rating and sensitivity.

Brand	Origin	What they supply	Typical price band	Notes
Meiji Electric	Quezon City, PH — since 1981	MCBs, RCCBs, GFCIs, panelboards, wiring devices	₱400–₱2,500	PEEP and DOE compliant; IEC-based designs; wide hardware-store stock
Omni (Yatai International)	Manila, PH — since 1996	Wiring devices and protection accessories	₱350–₱2,000	PNS and ICC marked; the strongest nationwide distributor network
Royu Electrical	Manila, PH — since 2002	Breakers (2-pole screw terminal, 220 V), wiring devices	₱300–₱1,200	Under the FELCO group; BPS certified; fire-retardant polycarbonate
Koten Enterprises	Pasay City, PH — since 1987	Circuit breakers and standard wiring devices	₱300–₱1,800	Mass-housing and institutional favourite; parts always available
Cosine Industries	PH	Customisable panels and protection systems	Project-based	Locally made, strong utility approval, co-labelling available
Schneider Electric	France	Acti9 iRCCB, AvatarOn GFCI, distribution boards	₱700–₱4,500	Widest specification presence on commercial projects
ABB	Switzerland	F200 series RCCB, distribution products	₱900–₱5,000	Common on industrial and utility work
Siemens / Mitsubishi Electric	Germany / Japan	RCCB and RCBO ranges	₱800–₱4,500	Premium pricing; strong on OEM panels
Chint and other Chinese brands	China	MCB, RCCB, RCBO	₱250–₱1,500	Cost-competitive; certification varies enormously by product line

There are two that require mentioning. Among the infamous brands in the Philippines, Meiji is the first choice for many domestic electricians. That’s because it’s available A-to-Z and with understandable labeling, which means that it has got the production from various factories rather than manufacturing everything on its own. Thus, the importance of checking certifications only increases. Cosine is the unique one for projects, given that it has the ability to produce things locally with the utility approval.

On the importers and the stockists level, there are companies like Marshal Electric in Manila that would have global brands for replacement and retrofitting. For the time being, being in need of a simple RCBO replacement, this layer is often faster than trying to get the replacement through the distributor order.

Common Models and What Each One Is For

Devices in this group do not have decorative design because they give you information on pole number, the type of current and other characteristics.

This means that encountering with a model such as 2P, 30mA, Type A, 6kA, you see a two-pole RCD with 30mA sensitivity that works with pulsating DC current and has a maximum short-circuit current of 6kA. Substitute 30 with 300, and a device turns into one that protects from fire and electric shock. Replace 2P with 4P, and the device protects you not only against electric shocks but also indicates if you have a three-phase circuit.

In case of a single-phase 230V domestic distribution board, you would typically encounter a 2-pole 30mA type A RCCB and a number of 16-32 A RCBOs. In commercial kitchens or wet areas of hospitals, you would be protected with devices with 10 mA GFCI. Any system with a drive or anything similarly requiring a type B device will make the specifications different.

HUYU’s residual-current range covers that spread in one family rather than piecemeal: a 16–125 A Type AC/Type A RCCB for the sub-main position, plus RCBOs from 6 A to 125 A, Type B and Type F variants for inverter and drive loads, and the MCB and AFDD lines that sit alongside them in the same board. The point of buying one family is that the accessories, busbars and enclosure widths are already matched.

What It Costs in the Philippines

Philippine pricing is lumped because the cheaper side of the market is crowded by uncertified imports and the expensive one by European brands, leaving very limited possibilities in between. The bands below show 2026 street pricing, so regard the low end of any range with caution unless there is a visible PS Mark.

Device	Typical price (PHP)	Notes
2-pole 30 mA domestic RCCB	₱600–₱1,500	Certified brands sit at the top of the band
2-pole 40–63 A RCCB	₱1,100–₱2,500	Sub-main duty
30 A RCBO	₱1,500–₱4,500	Residual current plus overcurrent
4-pole 63–125 A industrial RCCB	₱4,000–₱15,000	Three-phase plus neutral, sub-main
GFCI receptacle, 230 V	₱600–₱2,000	Wet-location point protection
Whole-home RCD + SPD package	₱1,000–₱8,000	Protection plus surge, materials only
MCB, 10 A, for comparison	₱220–₱400	HUYU ₱220–280; Schneider ₱280–350

There are two noteworthy patterns. The difference between an approved unit and one that is not may appear on paper to be more than fifty percent, however, the uncertified item has no verification that it will break at the values stated in its specifications or withstand short-circuit current of the same value. Therefore, the calculated difference is only a difference on paper. Similar situation can be observed in the table presented above, where HUYU offers its product at a price level of ₱220–280 while major European brands sell their devices for ₱280–400.The full local price breakdown is set out in this circuit breaker price guide for the Philippines.

How to Choose a Supplier

Philippine procurement depends on certifications more than on manufacturers, so figure out this checklist before worrying about price.

PS Mark or ICC. Electrical equipment available in the Philippines is expected to be marked with the Philippine Standard Mark or an Import Commodity Clearance sticker. Without that, an appliance cannot be mentioned in a valid installation, no matter what kind of datasheet is provided.
Specify standards. RCCB has to be certified according to IEC 61008, while RCBO has to provide IEC 61009. An offer saying “It conforms to IEC standards” is not definitive.
Sensitive rating and Type. Make sure the offer indicates that it is 30 mA and appropriate Type A or B. If a drive, inverter or an adapter is included in the installation, Type B is obligatory.
Breaking capacity. Ask what conditional short-circuit current a device is rated for and which protective device is used. The difference between a 10 kA unit and a 6 kA unit is not visible.
60Hz specification. Make sure the part complies with the specifications for 60Hz, not 50 Hz only.
Warranty. It is better to ask for two-year warranty with some possibility of replacement rather than a one-year.
Documentation. Make sure you obtain the test report and Declaration of Conformity each time the shipment arrives, not just once per inquiry.

This way a manufacturer like HUYU operates successfully. We are not well-known brand among Filipino customers, and if the specification mentions Schneider or ABB, it means that this specification involves these brands and not our company. In that case, we are able to compete based on performance specifications — 30 mA, Type A or B, PS Mark or ICC, IEC 61008/61009, two-year warranty according to the specifications strictly. The range and the OEM terms are set out on the RCCB manufacturing programme page.

FAQ

Is an earth leakage relay the same as an RCD or RCCB?

So functionally the two devices are the same as they both sense the current flowing in the live conductors and trip on residual current. However the difference between them comes in terms of the form factor and their application. The earth leakage relay is usually a standalone equipment which is combined with a core balance current transformer and is responsible for the operation of the relay which is utilized when it is required to have a variable action of the device or to trip a large circuit breaker. RCCB is in fact a single DIN event component that performs the switch. In electrical works in the Philippines one will be faced with installation of RCCB or RCBO while earth leakage relays are used in industry and beyond.

Does the Philippine Electrical Code require an RCD in homes?

Yes, in two different ways. The requirement of PEC 2017 Article 2.10.1.8 is that Class A grounding fault circuit interrupters (GFCIs) should be applied when the current range is 4 to 6 mA in outlets located in bathrooms, kitchens near sinks, where water is used outdoors, in laundry areas, garages, and within 1.8 meters of a bathtub or shower. In addition to this, the code specifies that circuitry for socket-outlet circuits has a requirement of 30 mA for the residential output. Both of these requirements are applicable, and one may not replace the other because the thresholds of sensitivity are already different with these two requirements as well as the principles of protection.

Can a 30 mA RCD be used instead of a GFCI in the Philippines?

Rather than a straightforward substitute for the 4-6 mA requirement. It should be noted that PEC specifically mentions that the device with 30 mA rating does not comply with the GFCI regulation as 30 mA is about five to seven times more than the GFCI compliance level. Devices with 5-10 mA rating which are in accordance with IEC 61008 or IEC 61009 are compliant to requirements when the right type is utilized based on the load, but there is a limitation in the sense that prior written approval from AHAJ is necessary before the design completion. Thus, it will be more prudent to provide both: a 30 mA RCBO installed in the electrical panel and a Class A GFCI used in moist locations.

What Type should I specify — AC, A, B or F?

Type AC responds only to sinusoidal alternating residual current and is only used in simple resistive and lighting circuits. Type A adds pulsating DC to its sensing range and is the sensible minimum for modern installations with electronic equipment. Type B is required whenever the circuit contains any of the following: a variable frequency drive, a solar inverter, an EV charger, or any other equipment that can create smooth DC leakage because neither Type AC nor Type A will detect it. Type F is between types A and B when it comes to mixed frequencies from single-phase drives and some inverter loads. If there is any inverter on the load list, specify Type B and stop haggling.

Do I need surge protection as well as earth leakage protection?

Absolutely, and the two are not the same things, as an RCD reacts as regards to any residual current, but does not shield devices from voltage surge. Considering that there can 25-50 storm days every year in the Philippines flat regions, the usage of Type 1 SPD at the point of supplies with the use of Type 2 devices at the switches is common and advisable for anything what has sensitive loads. The distance between these two levels of SPD should be at least 10 m or they can be connected with the help of decoupling elements.

Why does a newly installed RCD trip for no apparent reason?

There are four reasons that can account for the majority of the instances. An included neutral conductor connecting ahead two circuits divides the return path and takes on the characteristics of a ground fault for the coil responsible for sensing the fault. A bootleg ground or neutral conductor that has inadvertently been grounded also produces the same results. Cable insulation that has absorbed moisture, typical for the older Philippine buildings, leads to the presence of a true leakage. Finally, a device that is installed incorrectly because of the type may trigger an alarm on the DC component of the load. In order to localize the source of the issue, disconnect the load first and then check the individual circuits.

References

Conclusion

When looking to purchase earth leakage protection in the Philippines, you will have to think about three different specifications as well as one certificate. The specifications include the sensitivity of the device (i.e. it should be 4–6 mA for personnel protection in compliance with PEC 2017, 30 mA for socket circuits and 300 mA for fire protection), number of poles and the Type of the device (AC means basic protection, A is the most common there is and B is suitable only when the inverter or the drive is used in the device). The certificate you need is either a PS Mark or ICC sticker — without the certificate, you cannot use the device in your installation even if the datasheet states otherwise.

As for the suppliers, you can choose from Meiji, Omni, Royu and Koten companies as they will provide you with fast replacement regardless of the device illness; Cosine company manufactures at local factories and has a range of strong utility approvals; Schneider, ABB, Siemens and Mitsubishi Electric are known for the presence of all specifications required for proper device functioning according to the consultants expectations. HUYU is competing on costs and OEM terms – our prices are 10–20% lower than those of the leading brands but since we are not a well-known brand we have to admit that.

Whichever option you choose to shop for, ask for the data you need (the standard number, declared sensitivity of the device, type of the device and its safety performance) in writing so that at least four points indicated in the quotation would not allow you to deal with most possible troubles.