AC MCCB

AC Moulded Case Circuit Breaker

Home＞AC Switch＞AC MCCB

Main Features

Industry: Distribution network

Function: Overload and short circuit protection (for appliance and circuit protection)

Rated Voltage: 400V

Rated Current: Up to 800A

Standard: IEC 60947-2

Main Ratings According to IEC 60947-2

Type T125 T160 T250 T400 T630 T800
Rated Voltage (Ue) AC400V AC400V AC400V AC400V AC400V AC400V
Rated Current (In) A 63,80, 100,125 100,125, 140, 160 180, 200, 225,250 250,315, 350,400 400,500, 630 630,700, 800
Rated Insulation Voltage (Ui) 1000V 1000V 1000V 1000V 1000V 1000V
Rated Service Breaking Cap.(Ics) 25 kA 50 kA 50 kA 50 kA 50 kA 50 kA
Ultimate breaking capacity (Icu) 35 kA 70 kA 85 kA 85 kA 85 kA 85 kA
Electrical Life ≥6,000 ≥3,000 ≥3,000 ≥2,000 ≥2,000 ≥1,500
Mechanical Life ≥9,000 ≥7,000  ≥7,000  ≥4,000 ≥4,000 ≥4,000
Basic Dimension 25x130x68 30x155x88 35x165x88 46x257x103 46x257x103 70x275x103
Degree of Protection IP 20, IP40 with cover IP 20, IP40 with cover IP 20, IP40 with cover IP 20, IP40 with cover IP 20, IP40 with cover IP 20, IP40 with cover
Pollution Degree 2/ III 2/ III 2/ III 2/ III 2/ III 2/ III
Storage Temperature -40℃~+85℃ -40℃~+85℃ -40℃~+85℃ -40℃~+85℃ -40℃~+85℃ -40℃~+85℃
Humidity ≤95% ≤95% ≤95% ≤95% ≤95% ≤95%

Tripping Characteristics

Test Type Test Current Starting State Trip or Non-trip Time Limit Expected Result
1 B,C,D 1.13 In Cold t≤1h No tripping
1 B,C,D 1.45 In Follow Previous t＜1h Trip
1 B,C,D 2.55 In Cold 1s＜t＜60s (For In≤32A)
1s＜t＜120s (For In＞32A)		  Trip
2 B,
C,
D		 3 In
5 In
10 In		 Cold t≤0.1s No Tripping
2 B,
C,
D		 5 In
10 In
20 In		 Cold t≤0.1s Trip

Accessories

For Short Full Name
AX Auxiliary Contact
AL Alarm Contact
SHT Shunt Release
UVT Under-voltage Release