GUDE 8291-2 21-Fold Switched AC/DC PDU

GUDE Systems
GUDE 8291-2 21-Fold Switched AC/DC PDU

GS-82912

GUDE Expert Power Control 8291-2 is a 19-inch, 1U intelligent PDU with 21 switchable AC/DC ports and per-port metering for precise energy monitoring in IT and AV installations. It supports mixed-voltage devices, event- and schedule-based switching, and programmable on/off sequences for safe startups and remote reboots. Each DC output is eFuse-protected, and plug-and-play sensors track temperature, humidity, and air pressure. Featuring API integration (REST API, HTTPS, SNMP, Telnet, MQTT) and a self-healing 21-channel watchdog, the unit ensures reliable operation, improved energy efficiency, and reduced CO₂ emissions.

Features & Benefits

  • Event and schedule controlled switching
  • Connection of AC and DC consumers with different voltages and connection types
  • Outlet-metered for all DC connectors
  • Precise current metering of up to 9 units and residual current
  • 2 connectors for plug-and-play sensors
  • Fast and easy installation
  • NTP function can be activated
  • Integrated overvoltage protection type 3
  • Each DC output is fused via an eFuse
  • Each power port can be switched via HTTP/S, Telnet, SSH, SNMP or command line interface, as well as via serial interface
  • 17 DC switchable power ports with 24 V, 12 V and 5 V (industrial clamp, USB A)
  • 4 AC switchable power ports with 110-230 V (IEC C13)
  • Programmable on/off sequences for remote reboots (Remote Reboot)
  • Power ports can be switched when preset sensor thresholds are exceeded
  • Self-healing function thanks to 21-channel watchdog: Each power port can be assigned its own Watchdog (ICMP/TCP), which initiates an automatic restart if necessary
  • Switching state and switch-on delay up to 9999 seconds (166 minutes) individually adjustable for each output port after power failure
  • Current peaks due to increased inrush currents are automatically prevented by sequential switch-on with a latency of 1 second
  • Power consumption metering (kWh) with 2 energy counters: one counter counts consistently, the other counter is resettable
  • DC outlet-metering
  • Current metering for 5 V, 12 V and 24 V
  • Maximum available DC current per port: 4 A
  • Current distribution of the banks: 5 V (max. 8.8 A), 12 V (max. 6 A), 24 V (max. 12.5 A)
  • Metering of current (A), voltage (V), phase angle, power factor, frequency (Hz), active power (W), apparent power (VA) and reactive power (VAr)
  • Metering of differential current type A (mA)
  • 2 connectors for combined plug-and-play sensors (temperature, humidity and air pressure) to prevent often occurring physical hazards like overheating and increased humidity or air pressure
  • Integrated type 3 surge protection (SPD) prevents damage to the device and connected loads
  • Each power port is protected against short circuits thanks to integrated eFuse
  • Integrated industrial power supply (max. 300 W) with active harmonic filter (PFC)
  • MTBF value of the power supply unit: approx. 1.8 million operating hours
  • Long-life High-Inrush Relays prevent welding of relay contacts during inrush current peaks
  • Generation of status messages and alarms (e-mail, syslog, SNMP traps, MQTT, SSH, Telnet)
  • Encrypted communication through SSL (TLS 1.1, 1.2, 1.3) and SSH
  • Access protection by IP access control
  • Password protected access
  • Beeper for audible alarm when sensor limits are exceeded/deceeded
  • Easy-to-read LED display for displaying total current, IP address and sensor values
  • Firmware update via Ethernet during operation (no restart required)
  • Simple and flexible configuration via web browser, Windows or Linux program
  • Dynamic assignment of an IP address via DHCP or manual assignment of static IP address
  • Rapid commissioning thanks to free and reliable drivers from our technology partners
  • High-inrush relay: max. 4 sec: 30 A / max. 20 ms: 80 A
  • Measurement of key electrical parameters: current (A), voltage (V), phase angle, power factor, frequency (Hz), active power (W), apparent power (VA) and reactive power (VAr)
  • Outlet-metering for all DC connectors
  • Measurement of residual current type A (mA)
  • 19-inches, 1 HU
  • LxWxH: 43.9 x 24.1 x 4.4 cm (without mounting brackets)
  • Weight: approx. 4.4 kg
  • Operating temperature: 0-50 °C
  • Storage temperature: -20 – 70 °C
  • Relative humidity: 0 – 95 % (non-condensing)
  • 1 power supply IEC C20 (max. 16 A, 110-230 V)
  • 4 power ports IEC C13 (max. 10 A)
  • 12 power ports industrial clamp, 12 V DC or 24 V DC (max. 4 A)
  • Current distribution of the banks: 5 V (max. 8.8 A), 12 V (max. 6 A), 24 V (max. 12.5 A)
  • 5 power ports industrial clamp or USB A (no data transfer), 5 V DC (max. 3 A)
  • 1 Ethernet connector RJ45 (10/100 Mbit/s)
  • 1 serial interface RS232 (Sub-D, 9-pin)
  • 2 connectors (RJ45) for plug-&-play sensors