Relay Panels & SSPC

Highly integrated designs for significant weight and volume savings.
AC and DC secondary distribution utilizing electromechanical and/or solid state power switching devices
High integration of current sensing functions
Assemblies and subassemblies designed as LRUs for ease of replacement
Modular concepts for flexibility, reduced cost, easy reconfiguration and future requirements
Distributed or integrated architecture to optimize electrical power system performance, safety and reliability
Strategically integrated connections to associate secondary distribution assemblies with primary distribution assemblies
Choice of technical solutions based on standard circuit breakers or solid state power controllers

Full integration of hermetically sealed relays onto a PCB
2A-, 5A-, 10A- and 25A- ratings ; low level to 110VDC network voltage
1-, 2-, 3-, 4-, or 6-pole relays
Sockets available for easy relay removal
Use of separated transient suppression devices (PCB mounting or plug-in sockets) and other electronic components (e.g. diodes)
Time delay relay integration (PCB mounting or plug-in sockets)
Flexible technical approach allows for easy change or modifications of schematics
Relay panels designed as LRUs for ease of replacement

Fully integrated circuit breakers on panels for space and weight savings
Panel plug-in concept to the primary distribution or separated panels for cockpit installation
PCB plug-in circuit breakers for cost reduction and easy maintenance
Circuit breaker status reporting using communication buses such as CAN, ARINC, or others

"Design-to-safety" electronics i.e., optimized architecture to achieve the safety objectives of the equipment specifications
BITE features such as Fully Automatic Power On Built-in-Test (PBIT), Continuous Built-in-Test (CBIT) and Initiated Built-in-Test (IBIT)
Accurate I²t over-current and short circuit protection with thermal memory and fully compliant (or better than) thermal circuit breaker trip curve
Reprogrammable trip curves
Various communication buses (ARINC 429, CAN, RS422/485, MIL-STD-1553, Ethernet buses, etc.) for internal use, and for communication with man/machine interface, aircraft central computer, and other aircraft equipment
Load reporting and management such as load shedding, soft start for specific loads (light), and current measurement
Zero voltage turn-on and turn-off (AC device)
Synchronization between 3 phases for AC SSPCs (any phase trip will trip all phases)
Current threshold and delay for actuator overload protection
Programmable time delay on operate or release
Fail-safe functions
Optional arc fault detection
Very low heat dissipation using solid state technology