B type RCCB Residual Current Circuit Breaker
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B type RCCB Residual Current Circuit Breaker
Technical Data
Residual Current Circuit Breaker | RCCB
RCCB Electrical Features
| Mode | Electromagnetic |
| Type(wave form of the earth leakage sensed) | B |
| Rated current In | 25,40,63,80A |
| Poles | 2P,4P |
| Rated voltage Ue | 2P 240V~, 4P 415V~ |
| Insulation voltage Ui | 500V |
| Rated frequency | 50/60Hz |
| Rated residual operation current(I△n) | 30mA |
| Rated residual making and breaking capacity (I△m) | 500(In=2540A) 630(In=63A) |
| Short-circuit current Inc= I△c | 10,000A |
| SCPD fuse | |
| Break time under I△n | ≤0.1s |
| Rated impulse withstand voltage(1.5/50) Uimp | 4000V |
| Dielectric test voltage at ind.Freq. for 1min | 2.5kV |
| Electrical life | 2,000 Cycles |
| Mechanical life | 4,000 Cycles |
RCCB Installation
| Contact position indicator | Yes |
| Protection degree | IP20 |
| Ambient temperature(with daily average≤35℃) | -5℃~+40℃ |
| Storage temperature | -25℃~+70℃ |
| Terminal connection type | Cable/Pin-type busbar/U-type busbar |
| Terminal size top/bottom for cable | 35mm2 18-3AWG |
| Terminal size top/bottom for busbar | 35mm2 18-3AWG |
| Tightening torque | 2.5Nm 22In-lbs |
| Mounting | On DIN rail EN60715(35mm) by means of fast clip device |
| Connection | From top and bottom |
RCCB 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△≤2I△n |
| Detectable wave form | Pulsating direct current sensitive | Surge current proof |
| B class Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents,alternating residual sinusoidal currents up to 1000Hz,pulsating direct residual currents and for smooth direct residual currents,whether applied suddenly or increasing slowly. | They react to AC and pulsating DC fault | RCCB’s surge capacity. |
Circuit Diagram
Overall and Installation Dimension(mm)
Residual-current circuit breaker (RCCB), is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock. Injury may still occur in some cases, for example if a human falls after receiving a shock, or if the person touches both conductors at the same time. If the RCD device has additionally overcurrent protection integrated in the same device, it is referred to as RCBO.
The ETEK range of residual current circuit breakers without integral overload protection (RCCBs), provided protection solutions to a wide range of applications.
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