CyberPower MBP15A6 Maintenance Bypass PDU, 120V/15A, 6 Outlets, 1U Rackmount Black
Quick take
The CyberPower MBP15A6 maintenance bypass PDU is designed for rack setups that need a straightforward way to move load power between UPS output and utility power. It combines six NEMA 5-15R outlets with a manual bypass switch and an LED indicator for which power source is active, making it a solid match for UPS battery replacement, maintenance, or controlled power-source changes.
The key buying caveat is capacity: it’s listed for 15A electrical input/output, but it is derated to 12A, so you will want to confirm your connected load stays within that limit.
Pros and cons
Pros
- Maintenance bypass workflow, manually switching between Normal (UPS) and Bypass (utility) power sources
- Six rear NEMA 5-15R outlets for distributing power to rack equipment
- 1U rackmount metal housing for standard server rack installs
- LED display indicates which power source is active
- UL and RoHS compliant, with a three-year limited warranty
Cons
- Electrical capacity is derated to 12A, not the full 15A value you may see on the label
What buyers think
Buyer-review evidence is limited but points to a consistent theme: the MBP15A6 can be used to support maintenance-mode power routing in a rack, with users describing smooth operation when switching power sources. Reviews also highlight that the unit can be helpful when reorganizing or changing which UPS feeds the rack, and one review specifically notes the switch did not cause a noticeable disconnect during source changes.
How the maintenance bypass design works
This is not a standard power strip PDU. The MBP15A6 is built around a manual bypass switch that moves the connected equipment between two upstream sources. In Normal, the outlets receive power from the UPS output. In Bypass, the outlets receive power from utility power. The device also includes an LED indicator so you can confirm which source is currently active.
It uses separate AC cords for utility input (two NEMA 5-15P inputs with a 6-foot utility cord) and UPS connection (a 3.3-foot UPS cord), with the UPS drawing power through a dedicated NEMA 5-15R separate from the outlets for connected devices.
Key specifications that affect real-world compatibility
Outlet type and count
You get six rear NEMA 5-15R outlets, which suits common North American 120V devices with standard 3-prong plugs.
Power rating and the derating caveat
The PDU is described for 100-120VAC with a 15A electrical capacity, but it’s explicitly derated to 12A. If you are powering multiple devices, this derating matters for total load planning.
Mounting and rack fit
As a 1U rackmount unit, it’s intended for standard server racks. It uses rugged metal construction and includes mounting hardware, plus support for connecting to a UPS for tower configurations.
Pros and cons in plain English
Pros
- Designed for UPS maintenance workflows: manual Normal and Bypass switching helps you keep load power aligned with the power source you want during maintenance or battery/UPS work.
- Clear status feedback: the LED display helps you confirm whether UPS or utility power is feeding the outlets.
- Rack-ready build: the metal housing and 1U form factor are meant for installs where durability and mounting stability matter.
- Good outlet count for a small rack segment: six NEMA 5-15R receptacles give you a practical distribution point for multiple devices.
Cons
- Capacity must be planned carefully: derated to 12A, which can be a limiting factor if your devices come close to the maximum.
- 1U fit can surprise you: some racks may have tighter clearance than you assume, so verify physical space around the unit before installation.
Who should buy this maintenance bypass PDU
Consider the CyberPower MBP15A6 if you need a rackmounted way to route load power between UPS output and utility power during maintenance events. It’s especially relevant for IT closets, server rooms, and other environments where you want a controlled method to keep equipment powered while servicing a UPS (for example, during battery replacement or UPS swaps).
Who should avoid it (or look at alternatives)
This PDU may be a poor fit if you are simply looking for general surge protection or a basic rack power distribution unit without any maintenance bypass switching requirement. It may also be challenging if your expected total load will exceed the derated 12A capacity, or if your rack has unusually tight spacing constraints and you cannot verify clearance ahead of time.
Alternatives to consider (by the criteria that matter)
- If you need more outlets or different outlet types: look for a maintenance bypass PDU in a higher-capacity format or with outlet counts that better match your device inventory.
- If your load is near 12A: compare by capacity and derating rules, not just the headline amperage on the listing, and confirm the expected total draw.
- If you need automatic switching: explore bypass solutions that are designed for different control schemes, since this model uses a manual bypass switch.
Verdict
The CyberPower MBP15A6 is a purpose-built maintenance bypass PDU for 120V rack environments, with a manual Normal/Bypass switch, six NEMA 5-15R outlets, and an LED source indicator. It looks like a practical choice for keeping uptime during UPS maintenance, as long as you plan around the derated 12A capacity and confirm the real rack-space fit in your installation.
FAQ
Is the CyberPower MBP15A6 a standard power strip?No. It’s a maintenance bypass PDU designed to switch connected equipment power between UPS output and utility power using a manual bypass switch.
What does “Normal” vs “Bypass” mean?In Normal mode, connected equipment is supplied by the UPS output. In Bypass mode, connected equipment is supplied by utility power.
How many outlets does it have?It provides six rear NEMA 5-15R outlets for connected devices.
What is the power rating?It’s specified for 100-120VAC with 15A electrical capacity, but it is derated to 12A, so total connected load should be planned accordingly.
Is it rackmount?Yes, it’s a 1U rackmount unit with a durable metal housing and mounting hardware for standard server racks.
FAQs
Specifications
| Product Title | CyberPower MBP15A6 Maintenance Bypass PDU, 120V/15A, 6 Outlets, 1U Rackmount Black |
|---|---|
| Category | Electronics > Power Accessories > PDUs |
| Brand | CyberPower |
| Manufacturer | CyberPower Systems |
| Model Number | MBP15A6 |
| Color | Black |
| Item Weight | 3.5 Pounds |
| Number of Outlets | 6 |
| Voltage | 120 |
| Other Special Features of the Product | Mountable |
| Maximum Current | 15 Amps |
| Power Plug Type | Type B - 3 pin (North American) |
| Plug Type | Type B |
| Number of Ports | 6 |
| Compatible Devices | -- Other -- |
| Amperage | 15 Amps |
| Item Dimensions L x W | 3"L x 17"W |
| Shape | Rectangle |
| Recommended Uses For Product | Indoor, Office, College Dorm Room |
| UPC | 649532614592 |
| Global Trade Identification Number | 00649532614592 |
| Mfr Part Number | MBP15A6 |
| Item Type Name | Cyberpower Maintenance Bypass PDU MBP15A6 Power Distribution Unit - Rack-Mountable - 6 output connectors |
| Built-In Media | Maintenance Bypass PDU^Mounting Hardware^Installation Guide |
| External Testing Certification | UL60950_1, cUL |
| Warranty Description | 3 years |
| Unit Count | 1.0 Count |
Recommended next
CyberPower CPS1215RMS Surge Protector, 120V/15A, 12 Outlets, 15 ft Power Cord, 1U Rackmount
The CyberPower CPS1215RMS is a 1U rackmount surge protector with 12 NEMA 5-15R outlets (front and rear) and a 15 ft power cord, built for network racks, data closets, and home office setups that need flexible plug access. It’s commonly chosen for its solid metal housing, low-profile rack fit, and practical outlet layout, with the main tradeoff being that it’s not a smart PDU and surge performance cannot be “proven” after installation.
EVERSECU 18 Channel DC12V 30 Amp Reset Fuse CCTV DC Distributed Power Box with AC Plug and Lock for Security Cameras, DVRs, CCTV Power Supply
The EVERSECU 18-channel DC12V CCTV power box is designed for distributed 12V camera power, with per-output PTC resettable fusing, LED indicators, and multiple protection modes. It is a solid fit for multi-camera installs that want channel-by-channel fault isolation, but you will need to plan for per-channel current capacity and consider fan noise if the enclosure will be placed in a quiet space.
CyberPower PDU41001 Switched PDU, 100-120V/15A (Derated to 12A), 8 Outlets, 1U Rackmount
The CyberPower PDU41001 is a 1U, rackmount switched PDU that adds network control (local and remote) for 8 NEMA 5-15R outlets plus an LCD for at-a-glance electrical readings. It’s designed for people who want to power-cycle devices from anywhere and monitor PDU vitals, with the main tradeoff being an input current limit that’s derated to 12A in practice.
Eaton BRN220GF 2 Pole 20 Amp 120/240 V BR GFCI Circuit Breaker Replaces GFTCB220
The Eaton BRN220GF is a 2-pole 20A GFCI circuit breaker for 120/240V panels, designed for plug-in mounting and ground-fault personnel protection. It can be a strong OEM-style fit for replacement projects, but it may require extra attention to wiring space and neutral routing in some panels.