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. 178-8225
Mfr. Part No.LV426370
PHP23,205.14
Each
units
Compact NSXm 4 16 A 36 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-7989
Mfr. Part No.LV426788
PHP88,570.74
Each
units
Compact NSXm 4 160 A 50 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS Stock No. 849-4185
Mfr. Part No.LV429853
PHP24,746.38
Each
units
NSX Range LV4 4 100 A 90 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4618
Mfr. Part No.LV432896
PHP147,622.26
Each
units
NSX Range LV4 4 630 A 85 kA 690 V - Fixed 255mm 185mm 110mm - - -
RS Stock No. 178-7901
Mfr. Part No.LV426967
PHP2,388.26
Each
units
- - 3 15 → 125 A - - - Fixed Mount - - - - - -
RS Stock No. 179-9799
Mfr. Part No.EZD400M3320MAK
PHP12,000.44
Each
units
EZD EZD400M 3 320 A 50 kA 440 V - Fixed Mount 140mm 255mm 110mm Motor Protection Instantaneous MCCB
RS Stock No. 874-4212
Mfr. Part No.3VA1116-4EF36-0AA0
BrandSiemens
PHP28,746.71
Each
units
Sentron 3VA 3 160 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 178-7741
Mfr. Part No.LV426458
PHP25,785.63
Each
units
Compact NSXm 3 125 A 50 kA 690 V - Screw 81mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS Stock No. 178-8158
Mfr. Part No.LV426263
PHP20,186.37
Each
units
Compact NSXm 4 40 A 25 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-8211
Mfr. Part No.LV426356
PHP18,520.87
Each
units
Compact NSXm 3 80 A 36 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-8055
Mfr. Part No.LV426100
PHP15,952.85
Each
units
Compact NSXm 3 16 A 16 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-8060
Mfr. Part No.LV426105
PHP15,952.85
Each
units
Compact NSXm 3 63 A 16 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-7960
Mfr. Part No.LV426755
PHP64,489.06
Each
units
Compact NSXm 4 25 A 16 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS Stock No. 178-7828
Mfr. Part No.LV426577
PHP31,850.57
Each
units
Compact NSXm 4 100 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS Stock No. 178-7822
Mfr. Part No.LV426571
PHP27,514.56
Each
units
Compact NSXm 4 25 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS Stock No. 849-4567
Mfr. Part No.LV431853
PHP54,239.70
Each
units
NSX Range LV4 4 250 A 90 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 178-8102
Mfr. Part No.LV426167
PHP22,576.73
Each
units
Compact NSXm 4 100 A 16 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-8094
Mfr. Part No.LV426159
PHP28,092.59
Each
units
Compact NSXm 3 160 A 16 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS Stock No. 178-7988
Mfr. Part No.LV426787
PHP73,031.37
Each
units
Compact NSXm 4 100 A 50 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS Stock No. 178-7847
Mfr. Part No.LV426803
PHP8,413.40
Each
units
- - - - - 110 → 130 V 125V Clip-On 8mm - - - - -
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