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mccb circuit breaker

BLTM3DC 400A Molded Case Circuit Breaker

BLTM3DC-400
Through many years of dedicated research on the actual system operation situation and customer needs for new energy at home and abroad, UNITE Electric has developed the BLTM3 (DC)-(HU) series of AC and DC Molded Circuit Breakers for New Energy.
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Product Characteristic

  • For the BLTM3-(HU) series Molded Circuit Breaker, the maximum rated voltage is 1140V, and the maximum current is 400A.
  • For BLTM3-(HU) series Molded Circuit Breaker, at 800V, the maximum breaking capacity is 36.5kA, ensuring reliable short-circuit protection for the system.
  • For BLTM3DC-(HU) series Molded Circuit Breaker, the maximum rated voltage is 1500V, and the maximum current is 400A.
  • For BLTM3DC-(HU) series Molded Circuit Breaker, at 1500V, the maximum breaking capacity is 20kA, ensuring reliable short-circuit protection for the system.

Standard

BLTM3(DC)-(HU) series AC/DC molded case circuit breaker complies with the following standards: IEC60947-1, GB/T14048.1 (General Provisions), IEC60947-2, GB/T14048.2 (Circuit Breaker).

Use and Maintenance

Various characteristics and accessories of the circuit breaker are set by the manufacturer and shall not be adjusted during use. Under proper storage and operating conditions, within 24 months from the date of manufacture and with intact seals, the manufacturer will provide free replacement and repair for products damaged or malfunctioning due to manufacturing quality defects.

Applied Environment

  1. Altitude ≤ 2000 m;
  2. Resistant to humid air (three-proof type) ①;
  3. Resistant to salt spray and oil mist (three-proof type);
  4. Resistant to mold (three-proof type);
  5. Used in non-explosive environments, with no metal-corrosive or insulation-damaging gases or conductive dust present.

Note: Three-proof products require special customization; please mark"TH"when ordering.

Technical Parameters

mccb circuit breaker

Outline and Installing Dimensions

mccb circuit breaker
mccb circuit breaker
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