ETM8-125 MCB
ETM8-125 series miniature circuit breaker are applicable to the low-voltage terminal distribution in the industry, civil building such as home and residence, energy, communication, infrastructure, lighting distribution system or motor distribution and other fields. They are used for the short circuit and overload protection, control and isolation. This mounting type MCB is used in almost all the countries and regions all over the world.
The breaking capacity of ETM8-125 is 10KA, or 6KA.
The tripping type is B, C, D curve.
The rated current is 63A, 80A,100A,125A.
Product Introduction
| Basic features | ||||
| Standards | EN/IEC 60898-1 | |||
| Certificate | KEMA/Dekra,CE,CB | |||
| Electrical features | ||||
| Rated current in | A | 63, 80, 100, 125 | ||
| Rated voltage Ue | V | 230, 240, 230/400, 240/415, 400, 415 | ||
| Rated frequency | Hz | 50/60 | ||
| Number of poles | P | 1, 2, 3, 4 | ||
| Ultimate short-circuit breaking capacity Icu | kA | 10kA/IEC60898-1 | ||
| Service short-circuit breaking capacity Ics | kA | 7.5kA/IEC60898-1 | ||
| Rated insulation voltage Ui | V | 500 | ||
| Rated impulse withstand voltage Uimp | kV | 4 | ||
| Dielectric test voltage at ind. Freq. for 1 min | kV | 2 | ||
| PoIIution degree | 2 | |||
| Trip form | Thermal magnetic trip | |||
| Magnetic release characteristic | B type(3-5In) | ■ | ||
| C type(5-10In) | ■ | |||
| D type(10-20In) | ■ | |||
| Thermal release characteristic | 1.13In Non trip cold state | >63A T ≥ 2h, ≤ 63A T ≥ 1h | ||
| 1.45In trip after 1.13 test | >63A T<2h, ≤ 63A T<1h | |||
| Magnetic release characteristic | Li=10In±20% | 8In non trip t ≤ 0.2S,12In trip t<0.2s | ||
| Thermal release characteristic | Li=10In | 1.05In Non trip | >63A T ≥ 2h, ≤ 63A T ≥ 1h | |
| 1.3In Trip | >63A T<2h, ≤ 63A T<1h | |||
| Mechanical features | ||||
| Mechanical life | T | 20000 | ||
| Electrical life | T | 10000（In>100A） | ||
| Reference temperature for setting of thermal element | ℃ | 40,50 | ||
| Ambient temperature | ℃ | -35~+70℃ | ||
| Installation | ||||
| Protection degree | IP20 | |||
| Nominal cross-sectional area of the copper conductor | mm2 | 50 | ||
| Tightening torque | N·m | 2.5 | ||
| Line entry | From top and bottom | |||
| Mounting | On Din rail EN50022(35mm) | |||
The ETM8-125 series miniature circuit breakers (MCBs) are designed for low-voltage terminal distribution across a wide range of applications, including residential buildings, commercial facilities, industrial settings, energy systems, communication networks, and infrastructure projects. They are commonly used for protecting circuits against short circuits and overloads, while also providing control and isolation functions.
They are built in compliance with the IEC/EN 60898-1 standard and come certified by Semko, CE, and CB—ensuring performance and safety in both local and international markets.
These breakers are available in 1P, 2P, 3P, with tripping characteristics offered in B, C, or D curve types to meet different protection needs. Depending on the model, they provide a breaking capacity of either 6kA or 10kA.
The rated current ranges from as low as 63A to 125A.
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