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Modular DIN Rail Products
- Miniature Circuit Breaker (MCB)
- 18mm Width DPN MCB
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- 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
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4.5KA/6KA 18mm Width DPN Miniature Circuit Breaker TDM4N
Technical Data
| Standard | IEC60898-1 |
| Rated current (In) | 1-32A |
| Poles | 1P+N |
| Rated voltage(Ue) | 240V~ |
| Insulation voltage(Ui) | 500V |
| Rated frequency | 50/60Hz |
| Rated breaking capacity (Icn) | 4.5KA/6KA/10KA |
| Rated operating short circuit breaking capacity(Ics) | 4.5KA/6KA/10KA |
| Energy limiting class | 3 |
| Tripping curve | B C D |
| Electrical and Mechanical life | 20000 |
Overload Current Protection Characteristics
| Test Procedure | Type | Test Current | Initial State | Tripping or Non-tripping Time Limit |
Expected Result | Remark |
| A | B、C、D | 1.13In | cold | t≤1h | no tripping | |
| B | B、C、D | 1.45In | after test A | t<1h | tripping | The curent steadily rise to the specifed walue within5s |
| C | B、C、D | 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 the |
| C | 5In | auxiliary switch to | ||||
| D | 10In | close the current | ||||
| E | B | 5In | cold | t<0.1s | tripping | Turn on the |
| C | 10In | auxiliary switch to | ||||
| D | 20In | close the current |

Installation
| Protection degree | IP20 |
| Reference temperature for setting of thermal element | 30℃ |
| Ambient temperature | -25~+40℃ |
| Storage temperature | -25~+70℃ |
| Terminal connection type | Cable/Pin-type busbar |
| Terminal size top/bottom for cable | 10mm² |
| Tightening torque | 1.2N.m |
| Connection | Top and bottom |
Combination with accessories
| Auxillary contact | YES |
| Alarm contact | YES |
| Shunt release | NO |
| Under voltage release | NO |
Overall and mounting dimensioned chart

Product Features
The core function is clear: it is mainly used for overcurrent protection and short-circuit protection of all power line facilities and electrical equipment in the building. At the same time, it can perform infrequent on-off operations on the lines under normal working conditions.
Applicable circuit parameters are clear:
Adaptive power supply: AC 50/60Hz;
Rated voltage: 240V;
Rated operating current: up to 32A;
Rated short-circuit breaking capacity: 4.5KA and 6KA are available.
Excellent design and compliance:
Modular design for easy installation and integration;
Complies with IEC60898-1 standards and meets international safety and performance requirements.
Outstanding performance and form advantages:
Reliable performance and strong protection stability;
The protection characteristics are precise and can respond to fault current quickly and accurately;
Small size, saving installation space.
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Modular DIN Rail Products
Smart Molded Case Circuit Breakers
PV Systems
Distribution Box

