An individual-switch power strip lets you cut power to one outlet at a time, while a master switch cuts every switched outlet on the strip in a single flip.
The whole decision comes down to whether you want to kill one device or the entire desk in one motion. Individual switches mean keeping a router alive while your desk lamps go dark. A master switch means one button ends the day for everything plugged in. Some strips now ship with both, and that combination is where most households land once they think it through.
How Do The Two Switch Types Actually Work?
A per-outlet switch controls only the socket it sits next to, so each plugged device has its own on/off state. A master switch controls all switched outlets together, overriding whatever the individual switches are set to.
That Always On socket is the detail worth noticing. It exists precisely so you can keep a modem or router running while the master switch clears everything else.
Watch for a naming trap here. A “master/slave” strip is a different animal entirely. It senses when a primary device powers up and then feeds power to the secondary outlets automatically. That is automation, not a manual kill switch, and it behaves nothing like a plain master switch.
Which One Fits Your Setup?
Reach for individual switches when something on the strip must stay powered, like a router, modem, or always-on charging brick. Choose a master switch when your goal is the fastest possible shutdown of a whole cluster of gear.
| Switch Type | What It Controls | Best For |
|---|---|---|
| Individual switches | Each outlet separately | Keeping one device live while others sleep |
| Master switch | All switched outlets at once | One-step shutdown of a full desk or media rack |
| Combined unit | Per-outlet switches plus a master override | Mixed setups with critical and disposable gear |
| Always On outlet | Nothing — it never shuts off | Routers, modems, and devices that need constant power |
| Master/slave strip | Follows a primary device’s power state | Home theater stacks tied to one receiver or TV |
| Surge protector | Clamps voltage spikes (listed in Joules) | Protecting sensitive electronics, not switching them |
| Plain power strip | Nothing — no surge protection at all | Low-load lamps and chargers only |
If you want per-outlet control without buying blind, our breakdown of a versatile option covers the smart plugs, USB ports, and outlet count to check before you order. If your setup leans toward smart plugs and USB ports, the tested 16-in-1 power strip breakdown walks through what actually holds up.
Load matters more than switch style, though. Power strips are generally treated as Relocatable Power Taps under UL 1363, and one safety reference cites a maximum total capacity of 1440 watts / 15 amps for a typical strip environment, with connected equipment capped at 600 watts / 5 amps.
Those numbers matter because a strip with switches is not automatically a surge protector. A plain switched strip gives you convenience and zero spike protection.
For the full safety detail, UC Irvine’s electrical safety reference guide spells out the capacity limits and the requirement to use listed equipment with a resettable circuit breaker.
What Are The Most Common Mistakes?
The three mistakes that show up most often are assuming any switched strip is a surge protector, powering always-on gear from a switched outlet, and ignoring the load ceiling.
- Plug a router or modem into a switched outlet without checking the master override, and one accidental flip takes your whole network down.
- Run a space heater, refrigerator, microwave, toaster, or coffee maker off a strip, and you are asking a low-load device to do a job it was never built for.
- Daisy-chain strips into other strips or extension cords, and you stack risk with no benefit.
- Run a strip through walls, ceilings, windows, or floors, or treat it as permanent wiring.
Two more rules worth knowing before you buy anything. For wet or outdoor-adjacent use, GFCI protection is required for nearby electrical equipment, and local code plus the manufacturer’s instructions govern. The standard safety guidance also excludes construction sites and healthcare patient-care areas from ordinary relocatable power tap use.
Tripp Lite’s compliance white paper and Texas Woman’s University’s fire safety guidance both push the same core habits: plug directly into a properly installed wall outlet, use listed equipment with a resettable breaker where required, and turn off unused devices at the strip or unplug them outright.
Which Strip Should You Actually Buy?
Buy individual switches if anything on your strip must stay live. Buy a master switch if one-motion shutdown of the whole cluster is the point. Buy a combined unit if you want both.
Then check three things before checkout: is there an Always On outlet for your router, does the surge rating appear in Joules, and does the total load stay under the strip’s stated capacity. Get those right and the switch question answers itself.
FAQs
Is a power strip with switches the same as a surge protector?
No. A switched power strip only controls power flow to its outlets. Surge protection is a separate function measured in Joules, and a plain strip provides none of it. If you are protecting a computer, TV, or gaming console, verify the Joule rating on the packaging before buying.
Can a master switch turn off outlets I want to keep running?
Yes, unless the strip has an Always On outlet. Look for that feature if a router, modem, or security device depends on constant power.
What is a master/slave power strip?
A master/slave strip senses when a primary device powers on and then supplies power to its secondary outlets automatically. That is different from a manual master switch, which you flip yourself. Master/slave strips are common in home theater setups tied to a single receiver or TV.
References & Sources
- Tripp Lite. “Updated Power Strip Safety and Regulatory Compliance.” Supports the TLP76MSG outlet layout, cord length, Joule rating, and UL 1363 relocatable power tap framing.
- UC Irvine Environmental Health & Safety. “Electrical Safety Reference Guide.” Sources the 1440-watt / 15-amp ceiling, the 600-watt / 5-amp connected-equipment limit, and the GFCI and daisy-chain guidance.
- Texas Woman’s University. “Extension Cord and Power Strip Use.” Confirms that power strips do not themselves provide surge protection and covers prohibited high-power appliances.
