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Intelligent Power Manager, 20-Amp, Single-Input

Reboot your equipment remotely over the Internet!


Please call 877-877-2269 for a replacement product or part.

Product Features

  • Direct, control, and manage power for all your connected network equipment: file servers, routers, network switches, and more.


  • Turn equipment on, off, or reboot.
  • Control equipment remotely over the Internet through any Web browser, Telnet™, or your own network.
  • External temperature can be monitored with an optional temperature sensor. Other sensors are also available. For details on the temperature sensor or other sensors, call our FREE Tech Support.
  • Features two isolated contact inputs for remote messaging. There are also two auxiliary output contacts for predefined assignments. You can open and close them remotely to activate remote external circuits.
  • Configure the unit as a master PDU with slaves linked via RS-232 or RS-485.
  • Overcurrent protected at 15 amps with one or two front-panel circuit breakers, depending on the model.
  • Sequentially power on and power off any or all equipment over a wide range of time.
  • Monitor input line voltage, total load current, and line frequency.
  • Remote control is via Telnet or a Telnet with Web function, RS-232 DB9 male or female console port, or an RS-485 RJ-11 port.

  • Choose from two models
    • The SP540A accommodates four pieces of equipment and has a total input load capacity of 20 amps.
    • The SP545A features two 20-amp circuits for a total of 40 amps. Each circuit can accommodate four pieces of equipment.

    Web/Telnet functions
    • Enable enhanced Web-based setup and control.
    • Includes Auto-PING for testing.
    • Sends e-mail alerts to three designated recipients.
    • SNMP MIB for standards-based monitoring and control.

    Built for ease of use
    • Designed for easy front-panel operation and access to communications ports.
    • Sturdy steel construction.
    • Fits standard 19" racks and is only 1U high.
    • Includes 1U rackmount brackets.
    • Complies with FCC, CE, UL®, and TUV requirements.

    Tech Specs

    cUL 0
    UL 0
    CE Approval Yes
    Connectors RS-232C: (1) DB9 F (DTE), (1) DB9 M (DCE) Network: (1) RJ-45 (10BASE-T Ethernet); RS-485: (1) RJ-11; AC input: (1) IEC 320 inlet (power cord included); AC output: (4) NEMA 5-20R outlets
    Environmental Temperature: 32 to 113º F (0 to 45º C); Elevation: Up to 10,000 ft. (3048 m)
    Humidity Up to 90% noncondensing;
    Power AC input: (1) IEC 320 C19 plug for (1) 97–137-VAC, 47–63-Hz circuit; AC output: (8) NEMA 5-20R plugs, 20 amps maximum
    Protocols Telnet, RS-232, RS-485, Web
    Size 1.75"H x 17.25"W x 8.25"D (4.4 x 43.8 x 21 cm)
    User Controls (1) manual control button; (1) circuit breaker (20-amp)
    Warranty 2 Years
    Weight 8 lb. (3.6 kg)

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The Intelligent Power Manager, 20-Amp, Single-Input comes with a standard None already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.