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 Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Application Break Time Circuit Breaker Type
RS Stock No. 831-9172
Mfr. Part No.1SDA067416R1
BrandABB
$351.89
Each
units
Protecta XT1N 3P 100 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9175
Mfr. Part No.1SDA067418R1
BrandABB
$618.69
Each
units
Protecta XT1N 3P 160 A 36 kA 690 V 500V - 76.2mm 130mm 70mm - - -
RS Stock No. 831-9188
Mfr. Part No.1SDA068059R1
BrandABB
$971.36
Each
units
Protecta XT3N 3P 250 A 36 kA 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 831-9163
Mfr. Part No.1SDA067414R1
BrandABB
$353.63
Each
units
Protecta XT1N 3P 63 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9185
Mfr. Part No.1SDA068210R1
BrandABB
$520.74
Each
units
Protecta XT3D 3P 250 A - 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 538-3833
Mfr. Part No.E203/100RD
BrandABB
$91.62
Each
units
Pro M S2CU 3P 100 A - 230 V, 400 V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 831-9179
Mfr. Part No.1SDA068058R1
BrandABB
$735.04
Each
units
Protecta XT3N 3P 200 A 36 kA 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 831-9181
Mfr. Part No.1SDA068208R1
BrandABB
$459.07
Each
units
Protecta XT1D 3P 160 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 831-9169
Mfr. Part No.1SDA067411R1
BrandABB
$325.40
Each
units
Protecta XT1N 3P 32 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 538-3849
Mfr. Part No.E203/125RD
BrandABB
$132.20
Each
units
Pro M E200i 3P 125 A - 230 V, 400 V - DIN Rail 52.5mm 68mm 90mm - - -