CYBERPOWER 

CYBERPOWER RKBS20S4F8R 1800 J 120 V NEMA 5-20P PLUG 12 NEMA 5-20R 4 FRONT 8 REAR

Mfg Part Number:  RKBS20S4F8R  
Image may not reflect the actual item.
Price: $86.51 + Free Shipping
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Feb 09, 2026
No Sales Tax except these states
, PO and Wire.

Engineered for the most demanding applications, the professional-grade Rackbar™ Surge Protector RKBS20S4F8R safeguards systems and networking equipment by absorbing spikes in energy caused by storms and electrical power surges. Designed for network environments, the RKBS20S4F8R also performs superbly for home office use, providing 1800 joules of protection, 20-amp electrical capacity with circuit breaker, and 12 surge-protected outlets (4 front, 8 rear). Industrial-grade metal housing keeps this Rackbar performing flawlessly. Two sets of mounting brackets provide flexible installation options: 1U rackmount (19 in.); 0U vertical rackmount and under-counter configurations.

Features of the RKBS20S4F8R include an EMI/RFI noise filter, LED status indicators, industrial-grade metal housing, AC power cord (15 ft.), and a cord retention tray. The RKBS20S4F8R also comes with a Limited Lifetime Warranty and a Connected Equipment Guarantee.

Main Specification
General Information
Manufacturer CyberPower Systems, Inc
Manufacturer Part Number RKBS20S4F8R
Manufacturer Website Address https://www.cyberpowersystems.com/
Brand Name CyberPower
Product Line Rackbar
Product Model RKBS20S4F8R
Product Name RKBS20S4F8R Rackbar 12 - Outlet Surge Protector with 1800 J Surge Suppression
Product Type Surge Suppressor/Protector
Technical Information
Plug/Connector Type NEMA 5-20P
Receptacles 12 x NEMA 5-20R
Protection Type Surge
Power Description
Input Voltage 120 V AC
Output Voltage 120 V AC
Maximum Line Current 20 A
Surge Energy Rating 1800 J
Physical Characteristics
Power Cord/Cable Length 15 ft
Height 1.8"
Width 17.5"
Depth 2.3"
Weight (Approximate) 4.80 lb
Miscellaneous
Package Contents
  • Rackbar Surge Suppressor RM 1U RKBS20S4F8R 20A 12-Outlet
  • Mounting Brackets (2 Sets)
  • Cord Retention Tray
  • Cord Organizers
  • User Manual
Additional Information
  • Physical Dimensions - (WxHxD) (cm) : 44.45 x 4.45 x 5.72 (cm)
  • Physical Dimensions - (WxHxD) (in) : 17.5 x 1.75 x 2.25 (in)
  • Physical Dimensions - (WxHxD) (mm) : 445 x 44 x 57 (mm)
  • Weight (kg) : 2.18
  • Weight (lb) : 4.8
  • Shipping Dimensions - (WxHxD) (cm) : 17.98 x 6.5 x 50.8 (cm)
  • Shipping - Dimensions (WxHxD, in) : 7.08 x 2.56 x 20 (in)
  • Shipping - Dimensions (WxHxD, mm) : 179.83 x 65.02 x 508.0 (mm)
  • Shipping - Weight (kg) : 2.27
  • Shipping - Weight (lb) : 5
  • Circuit Breaker : 20 A
  • Cord Length : 15 ft (4.6 m)
  • Input Frequency Range : 50 Hz - 60 Hz
  • Input Plug Type : NEMA 5-20P
  • Maximum Input Current : 20A
  • Plug Style : Straight
  • Nominal Output Voltage : 120 VAC
  • Outlets - Front : 4
  • Outlets - Rear : 8
  • Outlets - Total : 12
  • Outlet Type COMPUTED : 12 - NEMA 5-20R
  • Overload Protection : 20A
  • USB Charge Port : No
  • Attenuation : 50 dB
  • Clamping Voltage : 400V (H-N)
  • EMI/RFI Filtration COMPUTED : Yes
  • Maximum Surge Current : 90000 A
  • Maximum Surge Current H-G : 30000 A
  • Maximum Surge Current H-N : 30000 A
  • Maximum Surge Current N-G : 30000 A
  • Maximum Surge Voltage : 6000 V
  • Response Time : 1 Nanosecond
  • Surge Suppression (Joules) : 1800 J
  • Attenuation : 50 dB
  • Clamping Voltage : 400V (H-N)
  • EMI/RFI Filtration COMPUTED : Yes
  • Maximum Surge Current : 90000 A
  • Maximum Surge Current H-G : 30000 A
  • Maximum Surge Current H-N : 30000 A
  • Maximum Surge Current N-G : 30000 A
  • Maximum Surge Voltage : 6000 V
  • Response Time : 1 Nanosecond
  • Surge Suppression (Joules) : 1800 J
  • LED Indicators : Power On (green)
  • Adjustable Mounting Brackets : 2 sets (L-Short, L-Long)
  • Color : Black
  • Cord Retention Tray/Cord Organizers : Yes
  • External Site Ground Pin : Yes
  • Form Factors Supported : 1U Rackmount
  • Material of Construction : Metal
  • Rack Height : 1U
  • Style : Rackmount
  • Operating Elevation : 0 - 10000 ft (0 - 3048 m)
  • Operating Relative Humidity : 0 - 95 % (non-condensing)
  • Operating Temperature : 32 - 95 °F (0 - 35 °C)
  • Storage Elevation : 0 - 50000 ft (0 - 15239 m)
  • Storage Temperature : 5 - 113 °F (-15 - 45 °C)
  • Environmental : RoHS Compliant
  • Safety : UL1363 : UL1449
  • CEG Amount : $150000
  • Connected Equipment Guarantee : Lifetime
  • Product Warranty : Limited Lifetime Warranty
    		•
    Compatibility
    • Data Centers
    • PCs
    • Workstation
    • Server
    • Internetworking Equipment
    • Telecommunication Equipment
    • Security System
    • Audio/Video Equipment
    Environmentally Friendly Yes
    Environmental Compliance Restriction of Hazardous Substances (RoHS)
    Warranty
    Limited Warranty Lifetime
    product information
    WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
    [1024] [true] [Yes] [No] [Yes]