Schneider Electric MICROLOGIC 6.0A – Advanced Electronic Trip Unit | Masterpact NT/NW Platform
Engineering Background
The MICROLOGIC 6.0A is Schneider Electric’s precision electronic control unit engineered for Masterpact NT and NW series air circuit breakers. Designed to IEC 60947-2 standards, it delivers full LSI (Long-time, Short-time, Instantaneous) protection with integrated earth-fault (ground fault) detection — making it the preferred choice for industrial power distribution panels, data center switchgear, and critical infrastructure MCC applications.
Product Positioning
As a direct-fit replacement and OEM-grade component, the MICROLOGIC 6.0A serves procurement engineers who require traceable, specification-compliant trip units for Masterpact NT/NW frames rated 630 A to 6300 A. Konmask.com supplies this unit with full documentation support and cross-reference verification prior to shipment.
Complete Technical Specifications
| Part Number / SKU | MICROLOGIC 6.0A | LV432693 |
| Manufacturer | Schneider Electric |
| Series / Platform | Masterpact NT / NW |
| Protection Functions | L (Long-time) · S (Short-time) · I (Instantaneous) · G (Earth Fault) |
| Current Setting Range (Ir) | 0.4 × In to 1 × In (continuous adjustment) |
| Short-time Delay (tsd) | 0.1 s / 0.2 s / 0.3 s / 0.4 s |
| Instantaneous Override (Ii) | 2 × In to 15 × In (adjustable) |
| Earth Fault Setting (Ig) | 0.2 × In to 1 × In |
| Compatible Frame | Masterpact NT (630–1600 A) & NW (800–6300 A) |
| Mounting Interface | Direct plug-in, tool-free extraction |
| Display | Analog dial with LED trip indicator |
| Auxiliary Power | Self-powered via CT (no external supply required) |
| Standards | IEC 60947-2 · UL 489 · CE Marked |
| Operating Temperature | -25 °C to +70 °C |
| Weight | 450 g (approx.) |
| Country of Origin | France |
Proven Application Environments
- Industrial Power Distribution: Main incomer and bus-coupler protection in MV/LV substations
- Data Centers: Critical bus protection in Tier III/IV switchgear with earth-fault sensitivity
- Oil & Gas / Petrochemical: Hazardous-area panel feeders requiring IEC-compliant LSI+G protection
- Marine & Offshore: Switchboard trip units where self-powered operation is mandatory
- Building Automation / BMS: Main distribution boards in high-rise commercial buildings
- Utilities & Power Generation: Generator protection and bus-tie breaker control
Engineering Advantages
- Full LSIG Protection: Four-function protection in a single plug-in module eliminates the need for separate earth-fault relays
- Self-Powered Design: Operates without auxiliary supply — critical for fail-safe protection during power events
- Tool-Free Extraction: Hot-swap capable for maintenance without de-energizing the panel
- Continuous Current Adjustment: Fine-grained Ir setting from 0.4 × In allows precise coordination with upstream/downstream devices
- LED Trip Indication: Instant visual fault identification reduces MTTR in field service scenarios
- IEC + UL Dual Certification: Supports both international and North American project specifications
System Architecture & Signal Flow
The MICROLOGIC 6.0A integrates directly into the Masterpact NT/NW mechanical frame via a keyed plug-in connector. Current transformers (CTs) embedded in the breaker frame supply both measurement signal and operating power to the trip unit. The microprocessor continuously monitors L/S/I/G thresholds; on fault detection, it issues a trip command to the breaker’s opening mechanism within the configured time delay. The analog dials provide field-adjustable setpoints without requiring software tools, while the LED indicator latches on trip for post-fault analysis.
Sourcing & Quality Verification
- All units sourced from authorized Schneider Electric distribution channels or verified surplus with full traceability
- Pre-shipment inspection: visual check, label verification (LV432693 part number), and functional continuity test
- Original packaging preserved where available; repackaged units include inspection certificate
- Cross-reference confirmation provided against customer BOM or drawing number upon request
- Counterfeit-prevention: hologram label and date-code verification performed on every unit
Procurement Process
- Confirm Compatibility: Provide your Masterpact frame type (NT or NW) and rated current — our team verifies fit before order confirmation
- Request Quote: Contact [email protected] for volume pricing, lead time, and datasheet package
- Order & Payment: Secure checkout via Konmask.com; T/T wire transfer available for B2B orders above USD 500
- Shipment: DHL / FedEx express worldwide; export documentation (CO, packing list, commercial invoice) included
- After-Sales: 12-month warranty against manufacturing defects; RMA process within 5 business days
Technical FAQ
Q: Is MICROLOGIC 6.0A compatible with Masterpact NT06H1 and NT10H1 frames?
A: Yes. The 6.0A trip unit is compatible with all Masterpact NT frames (630 A–1600 A) and NW frames (800 A–6300 A) that accept the MICROLOGIC plug-in interface.
Q: What is the difference between MICROLOGIC 6.0A and 6.0E?
A: The 6.0A provides analog dial adjustment (no communication). The 6.0E adds Modbus/Ethernet communication for remote monitoring and SCADA integration.
Q: Can the trip unit be replaced without de-energizing the breaker?
A: The MICROLOGIC unit is designed for tool-free extraction; however, Schneider Electric recommends de-energizing the circuit before servicing trip units in live panels per IEC 60364 safety requirements.
Q: Does Konmask provide the LV432693 datasheet and wiring diagram?
A: Yes. Full technical documentation including the Masterpact NT/NW user guide and MICROLOGIC 6.0A instruction sheet is available upon request at [email protected].
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume discounts apply for orders of 5+ units.
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