Signs you need rccb & elcb replacement
- Nothing happens when you press the test button
- The RCCB trips at random even with every circuit switched off
- It will not reset, or feels loose when you push it up
- Your board has an old ELCB with a separate earth wire terminal
- The unit is 10–15 years old and has never been tested
- There is no 10mA RCCB protecting the water heater
How much does rccb & elcb replacement cost in KL?
Our current prices for rccb & elcb replacement across Kuala Lumpur and Selangor (updated October 2026). You get a fixed quote on site before any work starts.
| Job | Price (RM) |
|---|---|
| RCCB / ELCB replacement (unit included)per unit | RM250 – RM450 |
| MCB replacementper breaker | RM80 – RM150 |
| Power tripping: find and fixper job | RM150 – RM400 |
| DB box replacement, single-phaseper board · If the board is worn out | RM1,000 – RM2,000 |
| Inspection visit (minimum charge)per visit | From RM80 |
Prices include labour and standard materials (cable, trunking, standard switches and sockets) unless the item says otherwise. See the full price list.
What's included
- 1RCD test of the existing unit (trip current and trip time)
- 2Insulation test to rule out a wiring fault first
- 3New RCCB of the right sensitivity and rating
- 4Retest to confirm it trips within the required time
- 5A quick lesson on using the monthly test button
- 612-month workmanship warranty
What is the difference between an RCCB and an ELCB?
In Malaysia people use both names for the switch with a 'T' test button. Strictly, an ELCB is the older voltage-operated type found in many pre-1990s houses. It relies on a good earth and can fail to trip. An RCCB measures leakage current directly and is far more reliable.
If your board still has a true ELCB, replace it with an RCCB. It costs RM250 to RM450 fitted and is one of the cheapest safety upgrades for an older house.
Should I use a 10mA, 30mA or 100mA RCCB?
It depends on the circuit. Malaysian wiring rules require 10mA or less for water heaters and wet areas, and 30mA or less for socket circuits and anything handheld. 100mA is used for general protection of the whole installation.
Never replace a tripping 30mA RCCB with a 100mA one to stop the nuisance. It stops the tripping but removes the shock protection on your sockets. We will not do it, and you should not let anyone else.
How often should an RCCB be tested?
Press the test button once a month. It should trip instantly. If it does not, replace it straight away. A full test with an RCD meter, which measures trip time and current, is worth doing every few years and is part of our electrical safety inspection.