Dual-Source Redundancy & Source Transfer Optimization
The Switch Terminal 400 Frame 6x16 is a specialized six-pole heavy-duty connection system designed for 400A dual-feed three-phase power routing. It is the ideal hardware choice for automatic transfer switches (ATS), dual-source changeover panels, and backup energy enclosures across Tier III data networks, healthcare spaces, and transport systems. By integrating six terminals into one unit, it maps perfectly to two separate three-phase circuits-Feed A (Main Utility) and Feed B (Standby Generator)-transforming chaotic cable routing into a safe, organized setup.
High-Voltage Source Separation & Thermal Security Parameters
≥12mm Feed-to-Feed Isolation Distance: Engineered with thick physical internal walls that provide a clear electrical separation distance of ≥12mm between Feed A and Feed B. This wide clearance withstands high transient impulse spikes and stops cross-source shorting or dangerous back-feeding.
≥8mm Phase-to-Phase Insulation Spacing: Inside each separate power circuit, adjacent phase lines are isolated by a clearance of ≥8mm, which suppresses arcing and ensures absolute circuit independence.
Targeted Ampacity and Cable Compatibility: Perfectly accommodates copper wire sizes up to 16mm² per pole (10-16mm² range), handling a total system current of 400A (up to 200A per independent feed) with an ultra-low contact resistance of ≤0.25 mΩ.
Technical Parameters
| Compatible Switch Type | 400A dual-feed three-phase switches, ATS (2×3P) |
| Number of Poles/Ways | 6 (Feed A |
| Compatible Switch Width | Approx. 216mm |
| Wire Range per Pole | 10-16mm² copper |
| Rated Voltage | 690V AC (each feed, isolated) |
| Total System Current | 400A max (each feed ≤200A) |
| Contact Resistance | ≤0.25 mΩ |
| Dielectric Strength | ≥2.5kV within feed; feed-to-feed isolation ≥3kV |
| Isolation Distance | ≥12mm creepage between feeds |
| Torque Rating | ≥4.0 N·m |
| Terminal Type | Heavy-duty tubular screw or bolt-type |
| Housing Material | Reinforced PA66, V-0 flame rating |
| Cover Material | Transparent polycarbonate with feed and phase labels |
| Protection Rating | IP20 |
| Mounting Method | DIN rail or base plate screw fixing |
| Operating Temperature | -40°C to +105°C |
| Space Saving | Approximately 55% vs. two 3-pole blocks |
| Standards Compliance | IEC 60999-1, GB/T 14048.7, CE, CCC, RoHS |
Strategic Spatial Compression & Workforce Efficiency
55% Panel Space Reclamation Factor: Merging two independent 3-pole layouts into a single high-density 6-pole chassis saves roughly 55% of panel space compared to traditional dual-block setups, maximizing room inside tight ATS cabinets.
50% Reduction in Assembly Labor Hours: The pre-aligned 6-way layout fits onto a standard 35mm DIN rail right next to the transfer switch, cutting overall panel building and line verification time by up to 50%.
Rugged Heavy Industrial Defense & Asset Lifecycle Tracking
Molded from aging-resistant, reinforced PA66 insulation material, this terminal module runs smoothly under continuous heavy industrial loads without material degradation. The transparent safety cover includes permanent laser-etched labeling for both feeds, making it incredibly easy for technicians to spot lines and do maintenance safely. The high-torque terminal screws provide excellent protection against loosening from thermal expansion, keeping power flowing reliably without requiring constant maintenance.
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