Molded Case Circuit Breaker (MCCB) (MPN: BLX-MCCB-6000) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Frame Current Rating (In): 250 A (Frame sizes 100A, 160A, 250A, 400A available), Number of Poles: 3-Pole (3P) / 3-Phase, Rated Operational Voltage (Ue): 415 V AC (50/60 Hz). Standard plant applications include Main incoming circuit breaker for factory distribution switchboards and MCCs, Commercial building electrical intake risers and sub-distribution panels, Diesel generator changeover panels and automatic transfer switch (ATS) protection. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Molded Case Circuit Breaker (MCCB)
Molded Case Circuit Breaker (MCCB) (MPN: BLX-MCCB-6000) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Frame Current Rating (In): 250 A (Frame sizes 100A, 160A, 250A, 400A available), Number of Poles: 3-Pole (3P) / 3-Phase, Rated Operational Voltage (Ue): 415 V AC (50/60 Hz). Standard plant applications include Main incoming circuit breaker for factory distribution switchboards and MCCs, Commercial building electrical intake risers and sub-distribution panels, Diesel generator changeover panels and automatic transfer switch (ATS) protection. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Functional engineering application
The BLX-MCCB-6000 Molded Case Circuit Breaker (MCCB) provides reliable overcurrent and short-circuit protection for main distribution panels, motor control centers (MCC), generator changeovers, and commercial building switchboards across Kenya. Constructed with a heavy-duty thermoset molded casing resistant to mechanical shock and electrical arc tracking, this 3-pole circuit breaker features de-ion arc extinguishing chutes and silver-tungsten main contacts capable of interrupting high fault currents up to 50kA at 415V AC. The breaker incorporates a thermal-magnetic trip unit with adjustable thermal overload protection (0.8 to 1.0 x In) allowing fine-tuning to actual cable ampacity, alongside instantaneous magnetic short-circuit tripping for fast circuit isolation.
Heavy-duty 3-pole 250A molded case circuit breaker with 50kA short-circuit breaking capacity at 415VAC, thermal-magnetic trip unit, arc extinguishing chutes, and IEC/EN 60947-2 compliance.
Quotation & fulfilment
Parametric technical attributes
| Generic BLX-MCCB-6000 | |
| IDENTIFICATION | |
| Component Type | Molded Case Circuit Breaker (MCCB) |
| Manufacturer / Brand | Generic |
| Part Number (MPN) | BLX-MCCB-6000 |
| Stock Keeping Unit (SKU) | STX-BLX-BLXMCCB6000 |
| TECHNICAL PARAMETERS | |
| Frame Current Rating (In) | 250 A (Frame sizes 100A, 160A, 250A, 400A available) |
| Number of Poles | 3-Pole (3P) / 3-Phase |
| Ultimate Breaking Capacity (Icu) | 50 kA @ 415 V AC (IEC 60947-2) |
| Service Breaking Capacity (Ics) | 36 kA (75% Icu) @ 415 V AC |
| Trip Unit Technology | Thermal-Magnetic Trip Unit (TMD) |
| Overload Adjustment Range | Adjustable 0.8 to 1.0 x In (200A to 250A) |
| Short-Circuit Trip (Ii) | Fixed Instantaneous Magnetic 10 x In (2500 A) |
| Utilization Category | Category A (Selectivity non-delayed) |
| Mechanical / Electrical Life | Mechanical: 15,000 cycles; Electrical: 8,000 cycles |
| PERFORMANCE & RATINGS | |
| Rated Operational Voltage (Ue) | 415 V AC (50/60 Hz) |
| Rated Insulation Voltage (Ui) | 800 V AC |
| Impulse Withstand Voltage (Uimp) | 8 kV |
| CONSTRUCTION & CONNECTION | |
| Terminal Connections | Heavy tin-plated copper screw lugs with terminal phase barriers |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | In Stock - Enterprise Rd, Nairobi |
System fitment & verified replacements
Interchangeable models
- Schneider Compact NSX
- ABB Tmax
- Chint NXM
- Siemens 3VA
Commonly installed on equipment from
Common questions on this part
On the front face below the toggle handle, a rotary dial allows continuous adjustment of the thermal overload trip threshold from 0.8 to 1.0 times the nominal current (e.g. 200A to 250A).
Yes. Each BLX-MCCB-6000 is supplied with snap-in high-dielectric interphase barrier plates that prevent accidental arcing or flashover between adjacent line and load terminals.
Yes. Internal accessory pockets accommodate snap-in auxiliary contacts (OF), alarm contacts (SD), and shunt trip coils (MX) for remote emergency tripping or automation feedback.
Yes. The breaker complies fully with IEC 60947-2 standards recognized by Kenya Bureau of Standards (KEBS) and Kenya Power.
Yes. STARNEX stocks 100A, 125A, 160A, 200A, 250A, and 400A MCCBs at our Enterprise Road trade counter for immediate collection.
