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Product Overview
In advanced manufacturing and heavy continuous processing, nuisance tripping caused by motor startup surges can halt production lines and cost thousands per minute. The CHNAILE Intelligent 3-Pole Electronic MCCB ensures this never happens. Unlike rigid thermal-magnetic breakers, this device integrates a highly responsive solid-state microprocessor trip unit right into the faceplate. Calibrated for 100A maximum loads, it empowers electrical engineers to digitally shape the exact time-current curve required by complex inductive loads. Rated for extreme industrial environments up to AC 690V and boasting true Category B selectivity, it is the uncompromising choice for sophisticated panel builders and industrial automation integrators globally.
Technical Parameters
Device Category: | Electronic Molded Case Circuit Breaker (Solid-State MCCB) |
|---|---|
Poles Configuration: | 3P (Simultaneous 3-Phase Intelligent Control) |
Rated Current Range (In): | Adjustable 40A to 100A |
Rated Operating Voltage (Ue): | AC 220V up to AC 690V (Heavy industrial standard) |
Rated Insulation Voltage (Ui): | 750V |
Rated Impulse Withstand Voltage (Uimp): | 8kV |
Ultimate Breaking Capacity (Icu): | 35kA (at 400V) / 15kA (at 690V) |
Short-Time Withstand Current (Icw): | 10kA for 0.1s (Category B Selectivity) |
Control Core: | Advanced Solid-State Trip Unit (Dials: Io, Ir, Isd) |
Standard Compliance: | GB/T 14048.2 / IEC 60947-2 |
1. Solid-State Precision Protection Mechanisms
Category B Selective Coordination: The most critical feature for complex distribution boards. Because of its robust Icw rating (10kA/0.1s), this main breaker can safely "hold" a short-circuit fault for 100 milliseconds without tripping, allowing the smaller downstream breaker closest to the fault to clear it first. This guarantees that the rest of the factory remains fully powered.
Granular Curve Adjustment (Ir & Isd): Using the specialized frontal rotary dials, engineers can precisely set the Long-time overload protection (Ir) and the Short-time delay short-circuit protection (Isd). This is essential for riding through the massive temporary inrush currents generated when spooling up heavy 3-phase motors or VFDs.
35kA Instantaneous Plasma Extinction: Should an ultimate catastrophic short-circuit occur that exceeds the set delay, the microprocessor triggers the massive magnetic latch, violently exhausting 35,000A plasmas into the internal arc chutes to prevent panel destruction.
2. Heavy-Industry Structural Engineering
690V High-Voltage AC Resilience: Standard commercial breakers cap out at 415V. This MCCB is heavily insulated (Ui 750V) to continuously operate in AC 660V/690V heavy industrial grids, such as deep mining operations and offshore wind turbine internal networks.
Dielectric Polymer Armor: The highly sensitive electronic processing board is shielded inside a ruggedized, anti-tracking V0 thermosetting enclosure, protecting the digital brain from severe factory vibrations and 8kV atmospheric voltage spikes.
Tamper-Proof Calibration Interface: The precise current setting dials are recessed and can be sealed beneath a transparent polycarbonate shield, ensuring that unauthorized facility staff cannot accidentally alter the life-saving motor protection curves.
3. Target Application Scenarios
Due to its sophisticated solid-state adjustability and Category B selectivity, this 100A Electronic MCCB is heavily mandated by global EPCs for:
VFD Motor Control Centers (MCC): Acting as the primary incoming protection for large Variable Frequency Drives powering industrial pumps, compressors, and factory conveyor belts.
690V Heavy Industrial Grids: Managing the high-voltage AC distribution circuits inside steel foundries, marine vessels, and subterranean mining shafts.
Automated Manufacturing Plants: Supplying highly stable, nuisance-trip-free power to critical CNC machining arrays and robotic assembly lines.
Commercial AC Solar Combiners: Serving as the intelligent, adjustable main AC disconnect for modern string inverters operating at elevated grid voltages.
4. Global B2B Partnership with CHNAILE Factory
Factory-Direct Automation Supply: Sourcing microprocessor-controlled switchgear directly from our R&D and manufacturing facility gives your system integration firm a profound technological and pricing edge in high-end automation tenders.
Rigorous Solid-State Calibration: We do not rely on standard mechanical testing. Every electronic MCCB is subjected to exhaustive computerized secondary injection testing to verify the exact timing of the Ir and Isd delay curves prior to global export.
Premium OEM Panel Builder Support: We actively partner with elite automation panel builders worldwide, providing comprehensive technical support, customized dial calibrations, and bespoke branding for your proprietary motor control cabinets.
