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Schneider MTN683890 KNX Bus Power Supply 1280mA Ultra-High Load Integrated Decoupling Multi-Protection
Core Product Positioning
Schneider MTN683890 is the flagship high-power KNX bus power supply of the SpaceLogic REG-K series, exclusively engineered for extra-large-scale KNX building automation systems. Boasting an ultra-high 1280mA load capacity (2x that of the series’ 640mA models) and unlimited parallel expansion with multiple units, it acts as the core power supply guarantee for super-large commercial complexes and public buildings. Integrated with a bus decoupling circuit, one-touch reset, and industrial-grade multi-protection, it stably drives high-density KNX devices, eliminates grid interference via physical isolation, and enables efficient fault handling. With global wide voltage input (AC 92-253V) and full compatibility with the Schneider original KNX ecosystem, it is the first choice for extra-large cross-border KNX projects.
Detailed Technical Specifications
Electrical Core Specs
KNX bus output: DC30V, 1280mA (max continuous load) (powers up to 256 conventional KNX devices per unit)
AC input voltage: 92~253V AC, 50/60Hz (global wide voltage adaptation, no extra voltage regulator required)
Mains frequency tolerance: 50-60Hz ±10%
Total power loss: ≤5.2W (low-power design, reduces overall system energy consumption)
Bus short-circuit withstand current: Max 2A (high tolerance, adaptive to complex grid environments)
Signal transmission: Simultaneous KNX communication & power supply, zero signal interference
No-load power consumption: ≤1.2W (energy-efficient standby, meets industrial energy-saving standards)
Physical & Installation Specs
Mounting method: 35mm standard DIN rail snap-on (plug-and-play, compliant with building automation engineering norms)
Dimensions: 4 TE, approx. 72mm in width (compact design, space-saving for multi-unit parallel layout)
Protection class: IP20 (optimized for indoor electrical control cabinets/low-voltage box environments, dust and touch proof)
Housing material: V0-rated flame-retardant plastic (complies with mandatory building electrical fire protection requirements)
Integrated bus decoupling circuit: Physically isolates the power module from the KNX bus, completely eliminating communication packet loss caused by grid fluctuations and voltage surges
One-touch bus reset: Independent reset button for 1-second fault recovery of buses/devices, no power-off restart required, drastically cutting maintenance time
Full-dimensional electrical protection: Short-circuit/overcurrent/overvoltage/reverse polarity/grid surge protection with automatic recovery after fault elimination, no manual debugging
Unlimited parallel expansion: Supports 2+ identical units in parallel, load capacity doubles with the number of units (note: no mixing with other power models to ensure system stability)
Real-time status indication: Built-in LED indicator, clearly displays power on/operation/fault status for quick on-site fault diagnosis
Emergency power compatible: Accessible to project emergency power systems, ensuring continuous operation of core KNX devices in power outages
Core Application Scenarios
Ideal for centralized/zoned power supply in extra-large KNX building automation systems, adapted to high-density and high-power KNX device deployment scenarios:
Super-large commercial complexes: Power supply for full-building KNX intelligent lighting, environmental control, guidance systems, and security linkage in shopping malls and plazas
High-end star hotels/wellness communities: Powers guest room intelligent control, public area lighting/air conditioning/curtain systems in entire hotels, and all intelligent devices in wellness communities
Super high-rise office buildings/headquarter towers: Serves as the main power supply for floor-zoned KNX systems, matching with zoned power supplies to realize hierarchical system management
Large venues/public buildings: Full-venue power supply for KNX intelligent lighting, security monitoring, and equipment control in exhibition centers, gymnasiums, grade-A hospitals and libraries
Industrial parks/high-end residential communities: Powers intelligent control of office buildings and supporting facilities in industrial parks, and centralized power supply for public areas and villa clusters in high-end communities
High-density high-power device scenarios: Large theaters, exhibition halls with multiple dimmers, motorized curtains and fan coil controllers, meeting the concentrated power supply needs of high-power KNX devices
Core Product Advantages
Ultra-high load + flexible expansion: 1280mA single-unit load capacity, unlimited parallel expansion to meet the full-cycle power supply needs of extra-large projects
Global universal + low power consumption: AC 92-253V wide voltage input, no extra accessories for cross-border projects; low power loss design reduces long-term operation costs
Industrial-grade stability + multi-protection: Wide temperature operating range, high short-circuit tolerance and full-dimensional protection, adaptable to complex grid and on-site environments
Engineering-friendly design: Compact DIN rail mounting, one-touch reset and real-time status indication, reducing commissioning and post-maintenance costs by 60%
100% Schneider ecosystem compatibility: Seamlessly matches all Schneider SpaceLogic KNX devices (switches, dimmers, sensors, gateways), supporting seamless system expansion and upgrade
International standard compliance: Complies with EN 50090 KNX international standards and global electrical safety norms, with CE certification, suitable for global project deployment
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller,Trading Company,Exporter
Year Established:
2015
Total Annual:
800000 USD-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Maituo Intelligent Technology Co., Ltd. has been a professional provider of Building and Home Automation Solutions in China since our establishment. With a focus on delivering intelligent, integrated systems for both commercial buildings and residential spaces, we have forged a strong reputation by ... Maituo Intelligent Technology Co., Ltd. has been a professional provider of Building and Home Automation Solutions in China since our establishment. With a focus on delivering intelligent, integrated systems for both commercial buildings and residential spaces, we have forged a strong reputation by ...
