MCCBs

MCCBs (Moulded Case Circuit Breakers) are an electrically operated switch designed to protect an electrical circuit from damage caused by overcurrent, typically resulting from an overload or short circuit.
How do they work?
The basic function of an MCCB is to interrupt current flow after a fault, once the fault is corrected the circuit breaker can be reset (either manually or automatically) to resume normal operation.
MCB or MCCB
Although MCBs and MCCBs both are circuit breakers, there are key differences between the two that make them suitable for specific jobs. The main difference between the two is the capacity, MCBs are rated under 100 amps with an interrupting rating of under 18,000 amps. Consequently, the trip characteristics may not be adjusted since they cater to low circuits. On the other hand, an MCCB comes with an adjustable trip characteristic for the higher loads. An MCCB would typically provide amps as high as 2500 or as low as 10, depending on the application. The interrupting rating of MCCBs range from around 10,000 amps to 200,000 amps.

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Description Price Range Series Number of Poles Current Rating Breaking Capacity at Maximum Voltage Rating Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Break Time Circuit Breaker Type Mounting Hole Diameter
RS Stock No. 831-9188
Mfr. Part No.1SDA068059R1 XT3N 250 TMD 250-2500 3p F F
BrandABB
$1,615.25
Each
units
Protecta XT3N 3 250A 36 kA 690V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 538-3849
Mfr. Part No.2CDE283001R0125 E203/125R
BrandABB
$190.44
Each
units
Pro M E200i 3 125A - 230 V, 400V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 831-9163
Mfr. Part No.1SDA067414R1 XT1N 160 TMD 63-630 3p F F
BrandABB
$716.34
Each
units
Protecta XT1N 3 63A 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9172
Mfr. Part No.1SDA067416R1 XT1N 160 TMD 100-1000 3p F F
BrandABB
$991.22
Each
units
Protecta XT1N 3 100A 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9179
Mfr. Part No.1SDA068058R1 XT3N 250 TMD 200-2000 3p F F
BrandABB
$1,756.04
Each
units
Protecta XT3N 3 200A 36 kA 690V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 831-9181
Mfr. Part No.1SDA068208R1 XT1D 160 3p F F
BrandABB
$722.30
Each
units
Protecta XT1D 3 160A 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9185
Mfr. Part No.1SDA068210R1 XT3D 250 3p F F
BrandABB
$787.81
Each
units
Protecta XT3D 3 250A - 690V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 831-9175
Mfr. Part No.1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
BrandABB
$1,379.20
Each
units
Protecta XT1N 3 160A 36 kA 690V 500V - 76.2mm 130mm 70mm - - -
RS Stock No. 538-3833
Mfr. Part No.2CDE283001R0100 E203/100R
BrandABB
$119.43
Each
units
Pro M S2CU 3 100A - 230 V, 400V - DIN Rail 52.5mm 68mm 90mm - - -