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Modular DIN Rail Products
- Miniature Circuit Breaker (MCB)
- 18mm Width DPN MCB
- Isolator Switch
- Residual Current Circuit Breaker (RCCB)
- Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
- Fuse
- Arc Fault Detection Device (AFDD)
- Surge Protection Device (SPD)
- Reclosing Device
- MCB Accessories
- Safety Breaker
- Earth Leakage Safety Breaker
- Safety Breaker with Outer Cover
- Earth Leakage Satety Breaker with Outer Cover
- Plug in Type Miniature Circuit Breaker (MCB)
- Plug in Type Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
- Modular Contactor
- Relay
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- Smart Molded Case Circuit Breakers
- PV Systems
- Distribution Box
6KA residual current circuit breaker with overcurrent protection TDR1
Technical Data
| Standard | IEC61009-1 |
| Mode | Electromagnetic/Electronic |
| Type | A、 AC |
| Tripping curve | BC |
| Pole | 1P+N 3P+N |
| Rated voltage | 240V~ |
| Rated frequency | 50/60Hz |
| Rated current | 6-40A |
| Rated residual operating current(l△n) | 30、100、300mA |
| Residual operating current range | 0.5l△n~l△n |
| Rated conditional short-circuit current(lcn) | 6KA |
| Energy limiting class | 3 |
| Electrical and Mechanical life | 4000 |
Overload Current Protection Characteristics
| Test Procedure | Type | Test Current | Initial State | Tripping or Non-tripping Time Limit |
Expected Result | Remark |
| A | B、C | 1.13In | cold | t≤1h | no tripping | |
| B | B、C | 1.45In | after test A | t<1h | tripping | The curent steadily rise to the specifed walue within5s |
| C | B、C | 2.55In | cold | 1s<t<60s(In≤32A) 1s<t<120s(In>32A) |
tripping | |
| D | B | 3In | cold | t≤0.1s | no tripping | Turn on theauxiliary switch toclose the current |
| C | 5In | |||||
| E | B | 5In | cold | t<0.1s | tripping | Turn on theauxiliary switch toclose the current |
| C | 10In |
Residual Current Operating Breaking Time
| type | In/A | I△n/A | Residual Current(I△)Is Corresponding To The Following Breaking Time(S) | |||
| ACtype | any | any | In | 2In | 5In | 5A,10A,20A,50A |
| A type | >0.01 | 1.4In | 2.8In | 7In | ||
| 0.3 | 0.15 0.04 | 0.4 max breaking time | ||||
| The general type RCBO whose current I△n is 0.03mA less can use 0.25A instead of 5I△n. | ||||||
Installation
| Protection degree | IP20 |
| Ambient temperature | -25~+40℃ |
| Storage temperature | -25~+70℃ |
| Terminal connection type | Cable |
| Terminal size top/bottom for cable | 25mm² |
| Tightening torque | 3.0N.m |
| Connection | Top and bottom(ELM)Top line(ELE) |
Overall and mounting dimensioned chart

Product overview
This Residual Current Circuit Breaker with Overcurrent Protection (RCBO) is a revolutionary circuit protection device that perfectly integrates three critical safety functions into a single, compact unit: earth leakage protection, short-circuit protection, and overload protection. Its core mission is to safeguard lives and property. The residual current component continuously monitors the balance of current flowing in and out of a circuit. If it detects an imbalance indicative of a leakage current (as little as 30mA), potentially through a person to earth, it disconnects the power within milliseconds, preventing a fatal electric shock. Simultaneously, the integrated overcurrent protection mechanism acts as a vigilant sentry against excessive current. In the event of a short-circuit fault or a sustained overload that could cause wiring to overheat and ignite fires, it trips immediately to isolate the circuit. This all-in-one design eliminates the need for separate devices, providing comprehensive protection and setting a new benchmark for modern electrical safety in any application.
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Modular DIN Rail Products
Smart Molded Case Circuit Breakers
PV Systems
Distribution Box

