COMPONENTS / 10 TOOLS
Component Selection Center
Screen component parameters by load and operating conditions, with a traceable selection basis.
Circuit Breaker Selection
Screen reference ratings by load type, starting method and operating current.
Iᴮ ≤ Iₙ ≤ Iᴢ · I_screen = Iᴮ × kContactor Selection
Check motor operating current, utilization category and control coil.
Iₑ (at the utilization category and Uₑ) ≥ IᴮThermal Overload Relay Selection
Find adjustment ranges that cover motor nameplate current.
Iₘᵢₙ ≤ I_nameplate ≤ IₘₐₓCable Selection
Screen conductor cross-sections using current, length, installation method and ambient temperature.
Iᴢ = I_table × k_temperature · ΔU% = ΔU / U × 100%24 VDC Power Supply Selection
Total DC loads such as PLCs, instruments and relays to estimate supply capacity.
P_total = Σ(n × P_unit) · P_target = P_total × (1 + reserve)PLC I/O Selection
Plan CPU and expansion modules from I/O counts, high-speed counters and network protocols.
Planned points = ⌈required points × 1.20⌉S7-1200 Selection
Match CPUs, SBs, SMs and CMs by resources and signal type.
Requirements → Shortfalls → CPU + ModulesMotor Feeder Design
Combine protection, control, cables and supplies into a feeder BOM.
Motor → Protection → Control → BOMControl Cabinet BOM
Combine equipment, I/O and supplies into a control cabinet list.
Equipment → Power / I/O → BOMProduct Reference Library
Review models, key specifications, official sources and verification dates.
Traceable parameters and sources