4 pole 40A 415V 30mA RCCB RCD breaker Residual Current Circuit Breaker
Rated current In
Rated voltage Ue
Insulation voltage Ui
Rated residual operation current
Rated residual making and breaking capacity
500( In=2540A ) 630 ( In=63A )
Short-circuit current Inc
Break time under
Rated impulse withstand voltage (1.5/50) Uimp
Dielectric test voltage at ind. Freq. FOR 1min
Contact position indicator
Ambient temperature ( with daily average ≤35ºC)
Terminal connection type
Cable/ Pin-type busbar/U-type busbar
Terminal size top/bottom for cable
Terminal size top/bottom for
On DIN rail EN60715 ( 35mm ) by means of fast clip device
From top to bottom
Purpose of RCCB
RCCB is particularly useful in situations where there is a sudden earth fault occurring in the circuit.
However, if the same circuit is protected with RCCB, it will trip the circuit in fraction of a second thus preventing the person
from receiving an electrical shock. Therefore, it is a good and safe practice to install RCCB in your electrical circuit.
How does it Protect?
The underlying fundamental principle behind operation of RCCB is that in ideal situations the current flowing in to the circuitthrough live (hot) wire should be same as the returning current from the neutral.
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: 100% T/T before payment. Or T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.
Q3. What is your terms of delivery?
A: FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, it will take 3 to 25 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.