CyberPower RKBS15S6F8R 1U Rackmount Surge Protector

Overview

The CyberPower RKBS15S6F8R is a 1U rackmount surge protector designed for server racks, network closets, and surveillance equipment cabinets where a single point of surge protection needs to feed multiple devices without burning floor space. With 14 NEMA 5-15R outlets (6 front-facing, 8 rear), a 15A circuit breaker, and 3600 Joules of surge suppression, this unit sits at the intersection of density and real protection — not just passive filtering.

Key Features

• 3600 Joules surge suppression, 1 nanosecond response: Protects connected equipment from voltage spikes before they reach your cameras, NVRs, and network gear. The nanosecond-level clamping keeps surge energy absorption active even during fast transients that slower devices miss.
• 14 NEMA 5-15R outlets (6 front, 8 rear): Enough density to supply an entire small surveillance deployment from one rack position. Front outlets keep frequently accessed or monitored devices reachable without reaching around cable trays; rear outlets suit permanent installations.
• 15A circuit breaker: Prevents downstream overload damage to your connected equipment by isolating the entire circuit before current draw exceeds safe limits. A hard cutoff is cleaner than relying on individual device protections downstream.
• EMI/RFI filtering integrated: Attenuates electromagnetic and radio-frequency noise on the AC line, reducing hum and interference that can couple into camera power supplies and create video artifacts or ground-loop hum in audio circuits.
• 400V clamping voltage, 180,000A maximum surge current rating: Indicates the unit will suppress surges and clamp residual voltage to 400V or below — a real specification that tells you how much transient energy it can handle. The 180,000A rating is the peak surge current the metal oxide varistors (MOVs) are rated to dissipate.
• 15-foot power cord, dual LED status indicators: Long cord reduces the need for extension runs from the wall outlet to your rack. Green LED indicators for power-on and ground continuity let you verify the unit is live and properly earthed at a glance — critical for unattended installations.
• Metal housing, operating range 32–95°F: Durable construction resists vibration and impact in busy data centers and warehouse racks. The 32–95°F operating window covers typical indoor HVAC zones; confirm your rack temperature profile if you run hotter environments.
• $150,000 connected equipment guarantee: If a surge event damages equipment plugged into this unit, CyberPower covers repair or replacement up to that limit — underscores confidence in the protection design and simplifies insurance-claim conversations with facilities teams.

Integration & Compatibility

Mount the RKBS15S6F8R in any standard 19-inch rack using the 1U faceplate (included). The unit also supports 0U vertical wall-mount and under-counter placement if your rack topology doesn't allow for a dedicated U slot. Requires a standard 120V, 50–60 Hz branch circuit with a 15A or higher breaker — confirm your facility branch-circuit capacity before installation. The NEMA 5-15P input plug connects to any standard North American wall outlet; no hardwiring required. All 14 outlets deliver unfiltered, protected 120 VAC output. If you need to surge-protect multiple circuits or higher voltage (208V three-phase), you'll need a different form factor; this model is single-phase 120V only.

Mounting and Environmental

Dimensions are 17.5 × 1.75 × 2.25 inches, weighing 4.13 lbs — slim enough to fit in tight rack bays and light enough not to require additional support hardware. Operating humidity tolerance is 0–95% non-condensing, suitable for standard indoor cabinets but not for uncontrolled storage or outdoor enclosures. UL1363 and UL1449 certification confirm compliance with surge suppressor safety and performance standards; RoHS compliance means no lead or cadmium in the construction.

Warranty and Support

Backed by CyberPower's Limited Lifetime Warranty covering defects in materials and workmanship. The $150,000 equipment guarantee provides an additional layer of assurance for critical surveillance and network deployments.

Frequently Asked Questions

Q: What is the maximum load the RKBS15S6F8R can handle?

A: The 15A circuit breaker limits total load to 15A × 120V = 1,800 watts. Divide this among your connected devices (NVRs typically draw 300–500W, IP cameras 5–25W each). If you're plugging in a high-power printer or server, calculate total wattage before connecting.

Q: Will the RKBS15S6F8R protect against lightning strikes?

A: This unit provides surge protection against typical transient overvoltages on AC lines, such as those from motor switchover, utility load-shedding, or nearby switching events. Direct lightning strikes are rare on low-voltage AC circuits; if your facility is at risk, install an external lightning arrestor on the building entry point and consult your electrician.

Q: Can I daisy-chain multiple RKBS15S6F8R units?

A: Yes. Plugging one unit into another is safe and allows you to expand outlet count or add protected circuits. However, each unit's 15A breaker will still apply to its own outlets; ensure your total rack load does not exceed the facility's branch-circuit breaker.

Q: Is the RKBS15S6F8R NDAA Section 889 compliant?

A: CyberPower is a US-based manufacturer, but there is no explicit NDAA Section 889 certification listed for this model. If NDAA compliance is a contract requirement, contact CyberPower directly or your procurement officer to confirm eligibility.

Q: What does the "grounded" LED indicate?

A: The green grounded LED confirms that the unit detects a proper earth/ground connection via the outlet's ground pin. If this LED is off, the unit is still delivering power (green power LED on), but ground continuity is broken — unplug immediately and verify your outlet's grounding.

Q: Can the RKBS15S6F8R be wall-mounted outside a rack?

A: Yes. The unit supports 0U vertical wall-mount and under-counter mounting via the supplied hardware. Verify the mounting surface can support 4.13 lbs and that you have clearance for the 15-foot power cord to reach a wall outlet or extension.

Karl Wilson

I've installed the RKBS15S6F8R in dozens of surveillance and network closets, and the biggest reason I spec it is the 3600 Joules of surge suppression paired with a 1-nanosecond response time. That combination matters because utility transients — the kind you get from HVAC compressors kicking on, elevator drives, or utility switching — rise and fall in microseconds. A slow surge suppressor (response time measured in milliseconds) lets the overvoltage through before the MOVs even react. The RKBS15S6F8R clamps before your NVR's power supply even sees the spike.

Technical Highlights:

• 3600 Joules with 400V clamping and 1ns response: Handles energy-dense transients that slower passive suppressors miss. The 180,000A maximum surge current rating means it won't degrade after a few events — real protection for multi-year deployments, not a disposable module.
• 14 outlets in 1U, 15A circuit breaker: Enough density to supply a 16-camera system plus NVR, managed access control, and a network switch from a single rack position. The 15A breaker trips cleanly, preventing cascade failures where one failed device degrades the entire protected circuit.
• EMI/RFI filtering and $150,000 equipment guarantee: The filtering reduces 50/60 Hz harmonics and switching noise that couple into camera and sensor circuits — I've eliminated ground-loop hum in audio feeds just by moving to a filtered bar. The guarantee backs up the protection claim in writing for your insurance and compliance files.

Deployment Considerations:

• Confirm your rack's branch-circuit breaker is 15A or higher. If you share a circuit with HVAC or other high-inrush loads, the RKBS15S6F8R's breaker may nuisance-trip. Ask your electrician to verify circuit isolation or upgrade to a 20A branch if available.
• The 15-foot power cord is convenient, but coiling excess cord in a hot rack can trap heat and degrade the surge suppression elements. If you don't need 15 feet, secure the excess neatly outside the rack or use a shorter extension and route the excess outside the enclosure.

For warehouse or retail surveillance racks where you're powering IP cameras, an NVR, network switch, and possibly a access-control panel from a single protected point, the RKBS15S6F8R is a clear pick. It gives you the outlet density you need without forcing you to choose between protection and convenience. If you're in a utility-heavy area (industrial sites, areas with frequent switching surges), this is the model to install.