STID-63 RCCB, full name Residual Current Circuit Breaker (STID-63 RCCB), is an electrical safety device specifically designed to prevent electrical fires and electrocution accidents. It mainly monitors the residual current in the circuit, i.e. the difference between the current of the fire line and the zero line. When this difference (usually caused by leakage) exceeds a preset value, the STID-63 RCCB will automatically cut off the circuit in a very short period of time, thus protecting the personal safety and the equipment from damage.
Mode | Electro-magnetic type,Electronic type |
STANDARD | IEC61008-1 |
Residual current characteristics | A, AC G, S |
Pole | 2P 4P |
Rated making and breaking capacity | 500A(In=25A 40A)or 630A(In=63A) |
Rated current(A) | 16,25,40,63A |
Rated frequency(Hz) | 50/60 |
Rated voltage | AC 230(240)400(415) Rated frequency: 50/60HZ |
Rated residual operating current I/ n(A) | 0.03, 0.1, 0.3, 0.5; |
Rated residual non operating current I no | 0.5I n |
Rated conditional short-circuit current Inc | 6KA |
Rated conditional residual short-circuit Current I Ac | 6KA |
Protection class | IP20 |
On symmetrical DIN rail 35mm Panel mounting |
Main Functions of STID-63 RCCB
Leakage Protection: The core function of the STID-63 RCCB is to detect residual current in the circuit and quickly cut off the circuit when leakage is detected. Residual currents are usually caused by damaged equipment insulation, broken wires or human electrocution.
Personal safety protection: By quickly cutting off the leakage circuit, the STID-63 RCCB can effectively prevent electrocution accidents and protect the lives of personnel.
Electrical fire prevention: Leakage of electricity can lead to overheating of the circuit, which in turn can lead to a fire, and the STID-63 RCCB's prompt disconnection function helps prevent such electrical fires.
The STID-63 RCCB contains an internal residual current transformer to detect the residual current in the circuit. When the residual current exceeds a preset value, the transformer triggers the release mechanism inside the STID-63 RCCB, causing it to quickly cut off the circuit.
1.Residual Current Transformer: It is usually a ring-shaped iron core that wraps around the fire and zero wires of the circuit. When there is an imbalance of current between the Fire and Zero wires (i.e. there is a residual current), the transformer senses this imbalance and generates magnetic flux.
2.Tripping mechanism: When the transformer detects a residual current that exceeds a preset value, it triggers the tripping mechanism. The tripping mechanism may be an electromagnet, a mechanical spring, or some other type of mechanism used to quickly cut off the circuit.
High sensitivity: STID-63 RCCB can quickly detect small leakage current and cut off the circuit in a very short time.
High reliability: After rigorous testing and certification, STID-63 RCCBs have high reliability and stability and can operate stably for a long time.
Easy to install and maintain: STID-63 RCCB usually adopts modular design, easy to install and maintain.
Wide range of protection: STID-63 RCCBs are suitable for a wide range of electrical systems, including residential, commercial and industrial.
STID-63 RCCBs are widely used in situations where there is a need to prevent personal injury and electrical fires caused by leakage of electricity. For example:
1.Residential electrical system: In a residence, STID-63 RCCBs are usually installed in the main distribution box or branch distribution box to protect the electrical circuits of the entire residence or a specific area.
2.Commercial electrical systems: In commercial buildings, STID-63 RCCBs may be used to protect circuits in offices, stores, restaurants, and other locations.
3.Industrial Electrical Systems: In industrial areas, STID-63 RCCBs are typically used to protect critical circuits such as production lines, mechanical equipment, and control systems.