SONTUOEC is one of the Chinese suppliers/manufacturers specializing in the production of various small electrical appliances STRO-40L is mainly used in AC 50Hz(60Hz), rated voltage 110/220V, 120/240V, rated current 6A to 40A low voltage terminal distribution system. RCBO is equal with MCB+RCD function; It is used for electric shock protection and human indirect contact protection, electric equipment protection when human body touching electricity or electric network leak current exceeds stipulated value, and over load and short circuit protection ; It can also be a non-frequency operator in the circuit, wildly used in the residential and commercial district. It complies with standard of IEC61009-1.
Specifications:
| Sandard | IEC/EN61009-1 | ||
|
Electrical features |
Type(wave form of the earth leakage sensed) |
|
Electronic type |
| Rated current In | A | A,AC | |
| Poles | P | (1P+N) | |
| Rated voltage | V | 110/220,120V | |
| Rated Current : |
|
6,10,16,20,25,32,40A | |
| Rated sensitivity I△n | A | 0.01,0.03,0.1 | |
| Insulation voltage Ui | V | 500 | |
|
Rated residual making and breaking capacity I△m |
A | 500 | |
| Short-circuit current I△c | A | 6000 | |
| SCPD fuse | A | ||
| Rated frequency | Hz | 50/60 | |
| Pollution degree |
|
2 | |
|
Mechanical features |
Electrical life | t | 4000 |
| Mechanical life | t | 4000 | |
| Protection degree |
|
IP20 | |
|
Ambient temperature (with daily average ≤35ºC) |
ºC | -5~+40(Special application please refer to temperature compensation correction) | |
| Storage temperature | ºC | -25~+70 | |
| Installation | Terminal connection type |
|
Cable/U-type busbar/pin-type busbar |
| Terminal size top/bottom for cable | mm2 | 16 | |
| AWG | 18-5 | ||
| Terminal size top/bottom for busbar | mm2 | 16 | |
| AWG | 18-5 | ||
| Tightening torque | N*m | 2 | |
| In-lbs | 18 | ||
| Mounting |
|
On DIN rail EN 60715(35mm)by means of fast clip device | |
| Connection |
|
From top and bottom | |
Main functions of STRO4-40L RCBO
Overload Protection: When the current in the circuit exceeds the rated value of the STRO1-40 RCBO, it will automatically cut off the circuit within a set period of time to prevent the circuit and equipment from overheating, thus avoiding fire and damage.
Short circuit protection: When a short circuit occurs in a circuit, the STRO1-40 RCBO will quickly cut off the circuit to prevent the short circuit current from causing serious damage to the circuit and equipment.
Leakage Protection: The STRO-40L RCBO is capable of detecting residual current (i.e., leakage current) in a circuit. When the residual current exceeds the set threshold, the STRO1-40 RCBO will cut off the circuit in a very short period of time to prevent electrocution accidents and electrical fires.
Principle of operation of the STRO-40L RCBO
The STRO1-40 RCBO contains an internal thermal magnetic trip detector (for overload and short circuit protection) and a residual current detector (for leakage protection). When the current or residual current in the circuit is abnormal, the corresponding striker triggers the tripping mechanism of the STRO-40L RCBO, making it quickly cut off the circuit.
1.Thermal Magnetic Tripper: It utilizes the heat and magnetic field generated when the current passes through the conductor to trigger the tripping. When the current is too high, the conductor heats up and generates a magnetic field, causing the bimetal inside the thermal magnetic striker to bend or the magnet to attract the iron core, thus triggering the tripping mechanism.
2.Residual current detector: It utilizes a zero sequence current transformer to detect the residual current in the circuit. When the residual current exceeds the set threshold, the residual current detector will send a signal to the tripping mechanism to cut off the circuit.
Main functions of STRO-40L RCBO
Overload Protection: When the current in the circuit exceeds the rated value of the STRO1-40 RCBO, it will automatically cut off the circuit within a set period of time to prevent the circuit and equipment from overheating, thus avoiding fire and damage.
Short circuit protection: When a short circuit occurs in a circuit, the STRO1-40 RCBO will quickly cut off the circuit to prevent the short circuit current from causing serious damage to the circuit and equipment.
Leakage Protection: The STRO-40L RCBO is capable of detecting residual current (i.e., leakage current) in a circuit. When the residual current exceeds the set threshold, the STRO1-40 RCBO will cut off the circuit in a very short period of time to prevent electrocution accidents and electrical fires.
Principle of operation of the STRO-40L RCBO
The STRO-40L RCBO contains an internal thermal magnetic trip detector (for overload and short circuit protection) and a residual current detector (for leakage protection). When the current or residual current in the circuit is abnormal, the corresponding striker triggers the tripping mechanism of the STRO-40L RCBO, making it quickly cut off the circuit.
1.Thermal Magnetic Tripper: It utilizes the heat and magnetic field generated when the current passes through the conductor to trigger the tripping. When the current is too high, the conductor heats up and generates a magnetic field, causing the bimetal inside the thermal magnetic striker to bend or the magnet to attract the iron core, thus triggering the tripping mechanism.
2.Residual current detector: It utilizes a zero sequence current transformer to detect the residual current in the circuit. When the residual current exceeds the set threshold, the residual current detector will send a signal to the tripping mechanism to cut off the circuit.
Features of STRO-40L RCBO
Multi-functional integration: The STRO-40L RCBO integrates overload, short-circuit and leakage protection functions, simplifying the design and installation of electrical systems.
High sensitivity: STRO-40L RCBOs can quickly detect and cut off abnormal and residual currents in the circuit, providing reliable protection.
Easy to install and maintain: STRO-40L RCBOs are usually modularized for easy installation and maintenance.
High safety: STRO-40L RCBOs are rigorously tested and certified for high safety and reliability to ensure the safe operation of electrical systems.
Application Scenarios of STRO-40L RCBO
STRO1-40 RCBOs are widely used in electrical systems in the residential, commercial and industrial sectors, especially those that require simultaneous overload, short circuit and earth leakage protection. They are usually installed in distribution boxes, switchboards or control cabinets to protect circuits and equipment from damage caused by abnormal current and voltage, and to prevent electrocution.