Product Core Brief

• Model: MDS6163HEA-NNNNN-LCC2E-NNNAX
• Brand: Eaton / Cutler-Hammer
• Series: Magna-DS / Power Defense Low Voltage Air Circuit Breakers
• Core Function: Delivers primary power distribution protection, fault interruption, and isolation across low-voltage switchgear architectures.
• Type: Low Voltage Air Circuit Breaker (Drawout Assembly)
• Key Specs: 1600 A frame rating, 3-pole configuration, 65 kA interrupting capacity at 480 V AC
• Condition: New Original (New Surplus), not refurbished
• ⚠️ Discontinued; limited stock

Section 4: Product Introduction

Power distribution engineers replacing main low-voltage switchgear components recognize that swapping power circuit breakers requires precise frame catalog matching, cradle alignment, and secondary disconnect indexing. The Eaton MDS6163HEA-NNNNN-LCC2E-NNNAX operates as a heavy-duty low-voltage air circuit breaker within the Magna-DS lineup, providing short-circuit protection, overload clearing, and isolation for critical industrial facilities.

This unit provides a direct replacement frame for existing Magna-DS switchgear cells, avoiding time-consuming busbar modifications or cubicle retrofits. Operating with high-speed contact separation and arc chutes, it interrupts short-circuit currents up to 65 kA at 480 V AC. Verify existing switchgear cradle interlocks and trip unit secondary settings prior to racking the breaker into an active cell.

Section 5: Key Selling Points & Differentiators

• High-Capacity Protection: Delivers 1600 A continuous current capability with 65 kA interrupting performance, managing heavy main and feeder distribution loads.
• Factory Quality Assurance: Supplied with full physical and insulation test reports, including contact resistance readings and 24-hour mechanical charge/trip validation.
• Form-Fit Interchangeability: Built to original Magna-DS switchgear mechanical drawout dimensions, permitting drop-in replacement into compatible cell structures.
• Application Boundary: Not recommended for medium-voltage primary distribution networks exceeding 600 V AC; select vacuum circuit breakers for medium-voltage switchgear installations.
• ANSI/UL Certification: Manufactured in compliance with ANSI C37.13 and UL 1066 standards for low-voltage power circuit breakers.

Section 6: Quality Transparency Strategy

1. Incoming Inspection
   • Traceability: Verify serial plates, catalog numbers, and factory nameplates against original shipping manifests and Eaton order codes.
   • Anti-Counterfeit Check: Inspect breaker housing molding, secondary stabs, and laser-etched tags under high-intensity lighting.
   • Visual Audit: Check arc chutes for micro-cracks, verify primary cluster finger springs for tension, and confirm main silver-plated contacts show no pitting or wear.
   • Accessories: Confirm presence of racking mechanism access covers, secondary disconnect blocks, and lifting lugs.
2. Live Functional Test
   • Test Bench Setup: Mount the Eaton MDS6163HEA-NNNNN-LCC2E-NNNAX on a dedicated breaker test station equipped with charging power supplies.
   • Boot Verification: Apply motor charging voltage; verify automatic spring charge completion, manual trip button response, and position indicators (Open/Closed/Charged).
   • Communication Handshake: Interface with the trip unit module using test kits to query status registers and confirm signal processing.
   • I/O & Load Simulation: Perform secondary current injection tests across all phase sensors, verifying long-time, short-time, and instantaneous trip timing curves under a continuous 24-hour diagnostic run.
   • Documentation: Issue a signed Test Report including micro-ohm contact resistance logs, trip timing charts, and time-stamped video records.
3. Electrical Parameter Tests
   • Insulation Resistance: Apply a 1000 V megger test across phase-to-phase, phase-to-ground, and open contact gaps (>100 MΩ threshold).
   • Ground Continuity: Confirm ground shoe resistance to frame ground remains under 0.1 Ω.
4. Firmware / Configuration Verification
   • Firmware Extraction: Query the installed electronic trip unit software revision using field test software.
   • Physical Settings: Inspect and document all trip unit rotary switches, DIP blocks, and hardware interlock positions using high-resolution photographs.