GUDE 8291-1 21-Fold Switched AC/DC PDU

GUDE Systems
GUDE 8291-1 21-Fold Switched AC/DC PDU

GS-82911

GUDE Expert Power Control 8291-1 is a 19-inch, 1U intelligent PDU with 21 switchable AC and DC ports for IT and AV installations. It supports independent switching and metering across mixed voltages and connection types for flexible power management. The unit includes eFuse protection, environmental monitoring (temperature, humidity, air pressure), and API integration via REST API, HTTPS, SNMP, Telnet, and MQTT. With proactive monitoring, a self-healing watchdog, and controlled switching, it enhances energy efficiency, lowers electricity costs, and reduces CO₂ emissions.

Features & Benefits

  • Event and schedule controlled switching
  • Connection of AC and DC consumers with different voltages and connection types
  • 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 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
  • 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)
  • 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, 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