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Panamax M5400-PM

Power line conditioner, surge protector, and voltage regulator

Item # 299M5400PM

The Panamax M5400-PM delivers high-level protection for your audio/video system.

The Panamax M5400-PM delivers high-level protection for your audio/video system.

Item # 299M5400PM

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About the Panamax M5400-PM

Keep your components safe from power surges

The Panamax M5400-PM delivers high-level protection for your audio/video system. It guards against harmful spikes and maintains outgoing current at a consistent, optimal level, giving you pure, noise-free picture and sound. The 5400-PM can safeguard up to 11 components, and it includes a protected front-panel USB charger for your MP3 player, cell phone or another portable electronic device.
Panamax M5400-PM back panel

The 10 rear-panel AC outlets are divided into 5 isolated banks, which helps prevent noise created by one component from affecting your other gear.

Keep your components safe from power surges

The Panamax M5400-PM delivers high-level protection for your audio/video system. It guards against harmful spikes and maintains outgoing current at a consistent, optimal level, giving you pure, noise-free picture and sound. The 5400-PM can safeguard up to 11 components, and it includes a protected front-panel USB charger for your MP3 player, cell phone or another portable electronic device.

Clean power for high-performance audio/video gear

This power conditioner has ten AC outlets on its back panel, divided into five isolated banks to minimize cross-interference between your components. Two of the outlets accommodate high-current components, such as an amplifier and powered subwoofer. These switched outlets operate on a delay to prevent "speaker thump" when powering your system on and off. A front-panel digital voltmeter and ammeter let you closely monitor the AC power coming into your system.

Ethernet and coaxial RF protection

The M5400-PM also has two sets of protected Ethernet jacks, including one jack on the front panel, so you can surf the web without worry of power surges. A pair of protected telephone jacks prevents spikes from coming in through your phone line, while three sets of coaxial terminals shield your satellite, cable TV and antenna connections.


Product highlights:

  • 11 AC outlets with 5 isolated banks:
    • two isolated banks of two switched outlets
    • two isolated banks of two always-on outlets
    • one isolated bank of two switched high-current outlets with delayed on/off
    • one front-panel convenience outlet
  • front-panel USB charger
  • voltage regulation circuitry ensures that your system receives a consistent, optimal amount of power
  • surge and over- and under-voltage protection
  • filtration circuitry virtually eliminates line noise
  • three sets of coaxial RF connections for cable/satellite/TV antenna
  • two sets of RJ-45 Ethernet line inputs and outputs, including one front-panel connection
  • RJ-11 phone line input and output
  • 12-volt trigger input for delayed outlets
  • front-panel digital voltmeter and ammeter
  • 2125-joule surge protection
  • maximum current rating: 15 amps
  • 17"W x 4-1/4"H x 14-1/4"D
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • $5 million connected-equipment warranty (covers equipment that is damaged by an AC surge while connected to a properly installed Panamax surge protector if protector shows signs of surge damage or is operating outside of design specifications)
  • MFR # M5400-PM

What's in the box:

  • Surge suppressor/power line conditioner
  • 10' AC power cord (IEC C-13 plug)
  • 2 Rack mount brackets
  • 4 Machine screws
  • 4 Plastic washers
  • 42" coaxial cable
  • 48" Ethernet cable (has an RJ45 connector on each end)
  • 49" Telephone cable (has an RJ11 connector on each end)
  • Owner's Guide (English/Spanish/French)

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More details on the Panamax M5400-PM

Mark G.

Features & specs

Type Component
Total AC Outlets 11
Total Current Capacity 15
High-Current Outlets 2
USB Connections USB-A
Coaxial RF Jacks Yes
Line Conditioning Yes
Joule Rating 2125
Powerline Network Compatible No
Connected Equipment Guarantee $5,000,000
Width (inches) 17
Height (inches) 4-1/8
Depth (inches) 14-3/4
Weight (pounds) 20
Parts Warranty 3 Years
Labor Warranty 3 Years

Product Research

Controls And Indicators


11 AC Outlets: The Panamax M5400-PM features 1 front-panel "Always On" AC outlet, 4 rear-panel "Always On" Linear Filtered outlets divided into two separate banks with voltage regulation, 4 rear-panel "Switched" Linear Filtered AC outlets also divided into two separate banks with voltage regulation, and 2 rear-panel "Switched/Delayed High Current" AC outlets.

  • High Current Outlets: The unit's two High Current Outlets provide power from a low impedance noise filtration circuit that does not limit the current to your equipment. Its output is noise isolated from all of the other outlets.
  • Voltage Regulated Linear Noise Filtration Outlets (Switched): The unit's four switched Linear Noise Filtration Outlets are divided into two separate banks and are controlled by the front panel Power Button or the DC Trigger input. These outlets will turn on immediately and turn off after 10 seconds. LiFT EMI/RFI noise filtration is provided by a two-stage balanced Pi filter which also provides noise isolation from the other outlet banks.
  • Voltage Regulated Linear Noise Filtration Outlets (Always On): The units four "always on" Liner Noise Filtration Outlets are divided into two separate banks and will only power off during a fault condition (under-voltage/over-voltage). Power is cleaned from these outlets by a two-stage balanced Pi filter which also provides noise isolation from the other outlet banks.
  • Gaming Outlet: The M5400-PM features a convenient AC outlet located on the front-panel for connecting your gaming system temporarily.

Level 4+ Power Cleaning And Filtration: Level 4+ Power Cleaning and Filtration eliminates common symptoms of contaminated power (including loss of detail, pops, hisses, hums and visual artifacts) and allows your A/V equipment to perform up to its full capability.

Voltage Regulation: The M5400-PM features voltage regulation which improves your audio/video system's performance and prolongs your equipment's life by providing a consistent level of optimal power to all your connected equipment.

Automatic/Visual Voltage Monitoring Circuitry: Panamax's patent pending AVM circuitry continuously monitors the incoming power as displayed on the unit's digital voltmeter. In case of an under-voltage or an over-voltage, a flashing red lightning bolt will be displayed in the voltmeter, and power to the connected equipment is automatically turned off if either of these conditions is detected. When voltage returns to a safe level, power to the equipment is automatically reconnected.

Cross-Contamination Reduction: The M5400-PM is designed to provide noise isolation between 5 isolated outlet banks including 2 high current outlets so that any noise created by an A/V component can not contaminate the power going to equipment plugged into another outlet bank.

Power Sequencing: The M5400-PM features Power Sequencing to guard against blown fuses and potential damaging speaker thump by automatically power outlets on and off in sequence. This feature minimizes in rush current issues by allowing the components plugged into the Switched Outlet Banks to power-up and stabilize before any amplifier and powered subwoofers are turned on. This sequence is reversed during shutdown. The amplifier and powered subwoofers turn off, their power supplies drain and then the equipment plugged into the Switched Outlet Banks are turned off.

Voltage Sense Trigger Input/Output: The M5400-PM voltage sense trigger input and output uses a standard 3.5mm (1/8") mini-mono plug. This feature provides an On/Off trigger for the M5400-PM using a direct current voltage signal. You can connect the DC Trigger Input to a remote trigger device that uses a DC output to trigger a start-up/shutdown sequence. The DC Trigger Output can be connected to a remote trigger device that uses a DC trigger input to pass the M5400-PM's startup/shutdown sequence to an additional device.

HD Ready Coax Jacks: The unit's bi-directional coaxial protection circuits achieve optimum signal quality from newly designed connectors that have less than 0.5 dB of attenuation from 0Hz to 2.2GHz. The unit's clamping level of 75V will meet the demands of both cable and satellite voltage while minimizing exposure to damaging spikes and surges.

Phone Jacks: The unit features an RJ-11 input and output for protecting your standard telephone or pay-per-view lines. The Phone circuit is auto-resetting.

LAN Jacks: The M5400-PM is equipped with two RJ-45 LAN inputs and one RJ-45 LAN output on it rear panel; and a bi-directional RJ-45 LAN jack on its front panel. The LAN protection circuits are designed for 1-/100 baseT Ethernet lines. The front-panel bi-directional LAN jack is an Ethernet pass-thru connection between the units front and rear panel. The front panel LAN port is also great for on-line gaming.

USB Charger: The M5400-PM features a front-panel USB type-A port for charging your MP3 player, cell phone, or other small electronic.

Digital Voltmeter: The M5400-PM features a front-panel Digital Voltmeter which monitors the voltage supplying your home theater equipment. If line voltage drops below 90VAC, or if the line voltage exceeds 142VAC, the display will turn off and the "unsafe voltage" indicator will flash indicating and unsafe voltage condition.

Digital Volts Out/Ammeter: The M5400-PM features a front-panel Digital Volts Out/Ammeter which shows the voltage the unit is proving to connected components or the actual current draw (0-15A) of your system, giving a visual reference as to how your system is functioning under a variety of conditions. The display will flash if the unit is out of regulation.

Outlet Bank Power LEDs: Each bank of outlets feature a corresponding Blue LED indicator. These LEDs indicate the status of the corresponding rear panel outlets. The LED will be lit when the outlets are turned On. They will flash during the startup and shutdown process.

Circuit Breaker: A circuit breaker is located on the back panel of the M5400-PM. The circuit breaker will trip only if the total current draw exceeds the maximum current rating (15A). This means that collectively, all outlets must draw more than 15 amps before the circuit breaker will trip.

Rack-Mount Brackets: The M5400-PM comes with rack-mount brackets to mount it in a 1U rack space.

$5,000,000 Lifetime Connected Equipment Warranty: Panamax will replace, pay to replace at fair market value, or pay to repair, up to $5,000,000 of equipment that is damaged by an AC surge while connected to a properly installed Panamax surge protector, if the surge protector shows signs of surge damage or is operating outside of design specifications. For coverage conditions and information on how to make a claim, please see the warranty sheet.

Controls And Indicators

Front Panel:

  • Power Button: Powers Bank 3, 4 and 5 outlets on and off.
  • Dimmer/Meter Button: Adjusts brightness level of unit's front panel lights and voltmeter. Also toggles the Ammeter display between Volts-Out and Amps.
  • Digital Voltmeter: Digital LED voltmeter indicates the incoming line voltage.
  • Digital Volts Out/Ammeter: The unit's Digital Volts Out/Ammeter shows the voltage the unit is providing to connected components.
  • Outlet Bank Power LEDs: Bank 1, Bank 2, Bank 3, Bank 4 and Bank 5 each have a corresponding LED indicator to indicate they are turned on.
  • Wiring OK: This LED illuminates to indicate that the wall outlet is properly grounded and Line/Neutral polarity is correct.

Rear Panel:

  • Circuit Breaker: Resets M5400-PM.
  • Bank 1 & 2 On LED: This LED illuminates when there is power present on the Bank 1 and 2 receptacles.


Front Panel:

  • AC Outlet: Front panel outlet for gaming systems.
  • USB: USB port for charging portable devices such as MP3 players or cell-phones.
  • LAN: Bi-directional Ethernet pass-thru connection between the front and rear panel.

Rear Panel:

  • Voltage Regulation Always On Bank 1: Two always on linear filtered outlets labeled DVR and VCR/AUX.
  • Voltage Regulation Always On Bank 2: Two always on linear filtered outlets labeled HDTV/Monitor and HD Cable SAT.
  • Voltage Regulation Switched Bank 3: Two switched outlets with linear filtration controlled by the front panel Power button or the DC Trigger input labeled Digital Radio and Pre Amp.
  • Voltage Regulation Switched Bank 4: Two switched outlets with linear filtration controlled by the front panel Power button or the DC Trigger input labeled CD and DVD.
  • High Current Switch Delayed Bank 5: Two switched, high current outlets controlled by the front panel power button or DC Trigger input labeled Receiver and Sub/Amp.
  • Voltage Sense Trigger Input: 3.5mm mono mini-plug which connects to a remote trigger device that uses a DC output to trigger a startup/shutdown sequence.
  • Voltage Sense Trigger Output: 3.5mm mini-plug output which allows the input signal to pass through the M5400-PM to control the start-up/shutdown of an additional device.
  • LAN Jacks: Two RJ-45 inputs and RJ-45 output for 10/100 baseT Ethernet lines.
  • Phone Jacks: One RJ-11 input and one RJ-11 output for standard telephone lines.
  • Coaxial Jacks: 3 pairs of bidirectional threaded female F-type coax terminals
  • Ground Lug: Gold-plated binding post that provides a common grounding point for equipment with separate ground leads.


AC Power:

  • Line Voltage: 120VAC, 60Hz
  • Maximum Current Rating: 15A
  • UL 1449 Surge Suppression Rating: 330V
  • Protection Modes: L-N, L-G, N-G
  • Initial Clamping Level: 200V
  • Joule Rating: 2125 Joules
  • Peak Impulse Current: 72,000A
  • EMI/RFI Noise Filtration:
    • Banks 1, 2, 3, 4: 80dB, 100KHz-2MHz
    • Bank 5 (High Current): 60dB, 100KHz-2MHz
  • Over-voltage Shutoff Threshold: 142V (+/-8)
  • Under-voltage Shutoff Threshold: 90V (+/-2)

DC Trigger Input:

  • Jacks: 3.5mm (1/8") mono mini-plug
  • Voltage And Polarity: 3-24V DC, bidirectional
  • Current Requirement: 4.5mA @ 3V, 58mA @ 24V

DC Trigger Output:

  • Jacks: 3.5mm (1/8") mono mini-plug
  • Pass Through: no delay

LAN Protection:

  • Clamping Level: 52V
  • Connectors: RJ-45
  • Wires Protected: 8 wires

USB Circuit:

  • Jacks: USB-A
  • Power Delivery: 500mA @ 5VDC

Telephone Protection:

  • Clamping Level: 260V
  • Capacitance: approximately 30pf
  • Suppression Modes: metallic and longitudinal
  • Connections: RJ-11
  • Wires Protected: 2 wires (4&5)

Universal Cable and Satellite Protection:

  • Clamping Level: 75V
  • Insertion Loss: <0.5dB
  • Bandwidth: 0MHz - 2.2GHz
  • Connections: Gold-plated female F-type

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Customer Q&A

7 questions already asked

What is the ambient noise level specifications of the 5400 with the unit at full load (Watts) and no load (Watts)? Buzzing would be a dealbreaker for me.
[ Steve  Jan 08, 2023 ]
1 answer
Greetings Steve, and thank you for your question. I reached out to the Panamax technician which they did not have the specifications on the decibel levels for you. He mentioned the voltage regulator is the only component in the M5400-PM that can give off a very slight hum. The M5400-PM has been around since 2007, and we have had one review mentioning a loud hum right out of the box. If this hum was unacceptable and on every M5400-PM, I would think Panamax would have replaced it a while ago.
[ Thomas J.  Jan 12, 2023 ]  Staff
Why does the M5400-pm intermittingly buzz? The buzzing is not mentioned in the owner's manual.
[ James  Oct 29, 2022 ]
1 answer
Greetings James, and thank you for your question. Sorry you may be having an issue with your M5400-PM. Our data base has no know issues with that particular model, so I'm not sure if the buzzing is isolated to your unit. If you purchased the M5400-PM from Crutchfield, call into our tech line. The number will be on your shipping confirmation email. If you purchased it elsewhere, contact Panamax at 800-472-5555. They should be able to resolve the issue.
[ Thomas J.  Oct 31, 2022 ]  Staff
i have the panamax m5400pm and yesterday my output voltage reached 154 and the banks turned off. how can i reset the unit for the banks to be operational again? thanks
[ reese  Feb 12, 2021 ]
3 answers
I thought all you had to do was unplug the unit, wait a few minutes and plug it back in. I have never had that happen so that is all I know
[ Stanley  Feb 12, 2021 ]
To my somewhat limited knowledge of the Panamax m5400-pm system. It consists of a system called buck & boost. The way it should operate is as follows; when the incoming (line voltage) sees 114 to115 volts(low voltage) you will hear a relay activate and the M5400 transformer should boost the transformers load voltage up approximately 7 volts to a normal voltage range of maybe120 thru122. It all depends on how much line voltage is being supplied to the M5400at the time. On the opposite side of that HIGH input voltage will jack up the boost transformers output voltage accordingly. I have to say 154 volts on a normal 120 volt 60HZ input sounds extremely excessive. for an attempted restart, push in on the reset button," back" top left side .If these few suggestions do not help call in, to have the unit repaired by a professional....
[ david  Feb 12, 2021 ]
That is an extreme over voltage on the output (and input to the unit itself). I'd say the internal circuit breaker opened, which can be reset . On this unit, output voltage should be 120V +/-. If the output voltage did reach 154V, this sounds like a failure of the unit somehow. I would suggest contacting Panamax. I would also suggest inspecting any components that were plugged in to it at the time. Modern electronics are not designed for that kind of input voltage.
[ TROY  Feb 12, 2021 ]
Hi, I want to know if I can connect the Paanax M5400-PM to a battery backup MB850 to get time to shutdown all equipment connected to the M5400-PM or what is the best option. Other question about the M5400-PM, when utility power shutdown, the M5400-PM will start up when the utility power come again? Thanks. Eric
[ EricP  May 11, 2020 ]
1 answer
These are not designed to be plugged into one another in any combination. Panamax does make units with all these abilities combined together. I recommend contacting an advisor on 1-800-324-9695 to check current inventory. Also, the M5400PM will automatically restore power to the equipment once the power is on and back to normal levels.
[ Paul  Jun 02, 2020 ]  Staff
If the power goes on and off, flickering, (ex. like during a storm), how does this unit protect your equipment vs. having a ups?
[ Thomas  Mar 15, 2020 ]
6 answers
I believe it shuts off if the differential power is high. That's the safe guard to protect downstream equipment.
[ Ravisher  Apr 16, 2020 ]
Yes it's will protect your equipment.
[ khanxay  Apr 16, 2020 ]
Never noticed any visible fluctuation during a storm, then again I don't recall looking.?
[ francis  Apr 16, 2020 ]
Protects the system for voltage fluctuations but there is no ups built in. What I do is plug my UPS into this unit, and then plug my TV and stereo into the UPS I also have a separate UPS i use for my powered speakers so they are not on the same circuit and plug that UPS into one of the other separate circuits on the back of the Panamax Hope that helps I am very very satisfied with this unit so far.. II live in the USVI and we have power issues all of the time and so far, so good with this baby
[ Stanley  Apr 15, 2020 ]
The unit protects by filtering/cleaning the dirty power from the utility to a steady regulated 120VAC with no interference to your AV equipment. This is critical for your home theater components to produce reliable service and clean viewing. The Panamax is strictly a power conditioner, you still need to supplement the unit with a UPS. I did that to my home theater. I get nice uninterrupted clean power to my AVR and projector. The UPS brand I recommend is made by APC (Schneider Electric). The minimum VA for the UPS size for a home theater should not go below 1500VA. I hope this helps.
[ Kurt  Apr 15, 2020 ]
I did not have that experience to answer to your question
[ MOSES  Apr 15, 2020 ]
I live in an old house without ground wiring in my outlets. Will this still protect me and is there any way to fix it to where itâ??ll protect my equipment without having to rewiring the house?
[ James  Mar 11, 2018 ]
2 answers
[ francis  Apr 16, 2020 ]
Hi James. I believe the Panamax will not be able to protect you without the ground. So, I would suggest paying an electrician to at least wire the one outlet and then they would probably have to run a ground wire outside to the physical ground. New houses have a ground spike that connects to the pyshical electrical box inside. This grounds all outlets in the house to Earth ground. I would talk to a qualified electrician for a quote.
[ Kevin  Mar 25, 2018 ]
What is the weight of the M5400 PM boxed?
[ John  Oct 20, 2017 ]
2 answers
We list the shipping weight as 24.8 pounds.
[ Jeff  Oct 25, 2017 ]  Staff
Panamax says about 23lbs with box
[ Jim  Oct 21, 2017 ]

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