RDB67-63 series MCB
2Pages

Catalog excerpts

Usage and its scope of application RDB67-63 (H) High Breaking MCB is suitable for the protective distribution circuit of AC 50Hz (or 60Hz), rated operating voltage up to 400V, rated current up to 63A, rated short-circuit breaking capacity does not exceed 6000A, as the use of circuit's infrequently connecting, breaking and switching, with the functions of over-load and short-circuit protection. Its connecting and breaking indication to make the use more visual and convenient, H type can be connected the bus-bar. Circuit breaker confirms to GB10963.1 standard. Model and its implication Without implies it cannot be connected with the bus-bar H implies it can be connected with the bus-bar Rated current of frame size (A) Design serial No. MCB Enterprise code Normal operating condition and installation condition 3.1Ambient temperature: -5℃~+40℃; Average value in 24h does not exceed +35℃. 3.2 Altitude height of Installation places does not exceed 2000m. 3.3 Condition of atmosphere When it is the highest temperature +40℃, the relative humidity does not exceed 50%, and it allows a certain high relative humidity when it is at relatively low temperature. For example, it reaches 90% when 20℃, and it should take special measurements when there occurring condensation due to the temperature variation. 3.4 Pollution grade: 2 3.5 Installation condition: Installing at the places that without obvious impact and vibration, as well as the medium without danger (explosion). 3.6 Installation mode: installed by TH35-7.5 installation rail. 3.7 Installation category: II, III grade Product classification 4.1 Number of pole: 1P, 2P, 3P, 4P 4.2 Releasing type: C type, D type (B type can be customized when required) 4.3 Rated current: 6, 10, 16, 20, 25, 32, 40, 50, 63A 4.4 Rated operating voltage: 230V/400V Main technique parameter 5.1 Over-current releasing characteristics: under the normal installation condition and reference temperature (30~35)℃, the over current releasing characteristics confirms to table 1. 5.2 Rated short-circuit breaking capacity of circuit breaker to see table 2.

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Releasing Rated current Testing current e ,,,,,,, ,,,,, Predict results Initial status Not releasing Cool status Following 1.45In t< lh Releasing after the test of Is < t < 60s Releasing Cool status ls<t<120s t<Q Is Not releasing Cool status t < 0.1s Releasing Cool status Releasing type c c D Rated short-circuit breaking capacity A 6000 6000 6000 5.3 Mechanical and electrical life: at the specified rated voltage, connecting and breaking the rated current, power factor is 0.85-0.9, testing as the frequency of per hour operation cycling 120 times (>32A) or 240 times (<32A),...

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RDB67-63 series MCB 2Pages

Catalog excerpts

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RDB67-63 series MCB
2Pages