Search by equipment, voltage, power, duty, condition or application.
Single-function legacy through multifunction numerical relays; 1 A/5 A CT inputs, 57.7/63.5/100/110 V VT and 24–250 Vdc/ac auxiliar…
2–6+ winding/zone inputs; transformer, generator, motor, bus and line schemes; 1 A/5 A or low-energy sensors
Transmission/subtransmission line protection; multiple zones; AC voltage/current inputs; single/three-pole tripping
1/3 phase plus earth inputs; definite/inverse curves; electromechanical through numerical
Residual/zero-sequence inputs from mA sensitive earth fault to kA CT-based protection
Small genset through multi-GW unit protection; current/voltage/frequency/power/differential and synchronising options
2–4 winding current differential plus overcurrent, REF, thermal and through-fault monitoring
4–100+ bays/zones; low/high-impedance or distributed architectures; sub-cycle trip options
LV/MV motors from fractional kW through tens of MW; current/voltage/thermal/start monitoring
LV/MV distribution feeders; overcurrent, earth fault, voltage/frequency, reclosing and arc-flash
Nano 8–32 I/O; compact 16–256 I/O; modular hundreds to >10,000 I/O; safety/redundant variants
About 100 to >1,000,000 I/O/tags; redundant controllers, historians and safety systems
Tens to >1,000,000 tags; local HMI through national control systems; redundant/cloud/hybrid
4–24 inch common panels; web/industrial PCs and multi-monitor operator stations beyond
8–5,000+ I/O; pole-top compact through substation/gateway systems; cellular/radio/fibre variants
Palm-sized edge device through 19-inch multi-slot server; fanless/rugged; -40 to +85°C variants
1U–8U; single to multi-socket; redundant storage/power; rugged or data-centre form
2–64 channels/module common; digital, analog, RTD, thermocouple, pulse, high-speed and safety
Single-bay controller through station systems with hundreds of IEDs; IEC 61850 station/process bus
6–24+ phasor channels/device; 30–240 frames/s; P-class/M-class; GPS/PTP time sync
8–512 analog and 32–2,048 digital channels; local or distributed; high-speed transient recording
3/4 current and 3/4 voltage channels common; IEC 61850-9-2/IEC 61869 sampled values; conventional or NCIT inputs