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30MA/100MA/300MA Type B Rccb Residual Current Type B Residual Current Device 4P RCD RCCB
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
Product Specifications
--Product Description
Product Description
30MA100MA300MA Type B Rccb Residual Current Type B Residual Current Device 4P RCD RCCB
Electrical Features | ||||||||
Mode | Electromagnetic | Rated residual making and breaking capacity (I m) | 500(In=2540A) 630(In=63A) | |
Type(wave form of the earth leakage sensed) | Pure Type B 30mA AC + 6mA DC | Short-circuit current Inc= I c | 10000A | |
Rated current In | 25A,40A,63A | SCPD fuse | 10000 | |
Poles | 4P | Break time under I n | ≤0.1s | |
Rated voltage Ue | 4P 415V~ | Rated impulse withstand voltage(1.5/50) Uimp | 4000V | |
Insulation voltage Ui | 500V | Dielectric test voltage at ind.Freq. for 1min | 2.5kV | |
Rated frequency | 50/60Hz | Electrical life | 2,000 Cycles | |
Rated residual operation current(I n) | 30mA | Mechanical life | 4,000 Cycles |
Installation | ||||||||
Contact position indicator | Yes | Terminal size top/bottom for cable | 25mm2 18-3AWG | |||||
Protection degree | IP20 | Terminal size top/bottom for busbar | 25mm2 18-3AWG | |||||
Ambient temperature(with daily average≤35℃) | -5℃~+40℃ | Tightening torque | 2.5Nm 22In-lbs | |||||
Storage temperature | -25℃~+70℃ | Mounting | On DIN rail EN60715(35mm) by means of fast clip device | |||||
Terminal connection type | Cable/Pin-type busbar/U-type busbar | Connection | From top and bottom | |||||
Tripping Current Range | ||||
Lagging Angle | I n>0.01A | I n≤0.01A | ||
0° | 0.35I n≤I≤1.4I n | 0.35I n≤I ≤2I n | ||
90° | 0.25I n≤I≤1.4I n | 0.25I n≤I ≤2I n | ||
135° | 0.11I n≤I≤1.4I n | 0.11I n≤I ≤2In | ||
Detectable wave form | Pulsating direct current sensitive | Surge current proof | ||
Introduction
A Residual Current Circuit Breakers is another different class of Circuit Breakers. A Residual Current Circuit Breaker (RCCB) is
essentially a current sensing device used to protect a low voltage circuit in case of a fault. It contains a switch device that
switches off whenever a fault occurs in the connected circuit.
Purpose of RCCB
Residual Current Circuit Breakers are aimed at protecting an individual from the risks of electrical shocks, electrocution
andfires that are caused due to faulty wiring or earth faults.
RCCB is particularly useful in situations where there is a sudden earth fault occurring in the circuit.
In such situation, in absence of an RCCB in the circuit, an earth fault may occur and the person is at the risk of receiving an
electrical shock.
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?
As explained above, RCCB is meant for protection from earth faults and associated risk to human life such as electrical shocks.
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.
In case of an earth fault, the current finds a passage to earth through accidental means (such as accidental contact with an openwire etc.). As a result the returning current from neutral is reduced. This differential in the current is also known as
“Residual Current”.
RCCB is designed such way that it continuously senses and compares for difference (residual current value) in current values between the live and neutral wires. Any small change in the current value on account of such event would trigger the RCCB to trip off the circuit.
A Residual Current Circuit Breakers is another different class of Circuit Breakers. A Residual Current Circuit Breaker (RCCB) is
essentially a current sensing device used to protect a low voltage circuit in case of a fault. It contains a switch device that
switches off whenever a fault occurs in the connected circuit.
Purpose of RCCB
Residual Current Circuit Breakers are aimed at protecting an individual from the risks of electrical shocks, electrocution
andfires that are caused due to faulty wiring or earth faults.
RCCB is particularly useful in situations where there is a sudden earth fault occurring in the circuit.
In such situation, in absence of an RCCB in the circuit, an earth fault may occur and the person is at the risk of receiving an
electrical shock.
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?
As explained above, RCCB is meant for protection from earth faults and associated risk to human life such as electrical shocks.
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.
In case of an earth fault, the current finds a passage to earth through accidental means (such as accidental contact with an openwire etc.). As a result the returning current from neutral is reduced. This differential in the current is also known as
“Residual Current”.
RCCB is designed such way that it continuously senses and compares for difference (residual current value) in current values between the live and neutral wires. Any small change in the current value on account of such event would trigger the RCCB to trip off the circuit.
Producing & Packing
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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: 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
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2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.
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