Logic & Relay

Push Button, E-Stop, or Indicator Light? Which Operator Control Does Your Panel Need?

Need to refresh your control panel? Four signaling and operator controls-from an Allen Bradley flush push button to a red mushroom e-stop-are compared by listed price, function, and best use case.

Last updated Aug 17, 2026

Quick take

You need to decide how an operator will start, stop, or read a machine. These four signaling and operator controls cover three different jobs: a flush black push button, a four-color indicator light, a set of small waterproof momentary buttons, and a red mushroom e-stop. Listed prices range from USD 17.50 to USD 65, so the choice depends less on price alone and more on whether you need maintained switching, momentary contact, or multi-color status indication.

Listed-price comparison

OptionListed pricePrice bar
Allen Bradley 800T-A2D1 Flush Black Push ButtonUSD 30.00
Allen Bradley 800T-PC416 4-Function Indicator LightsUSD 65.00
4pcs Metal Momentary Push Button Switch (8mm)USD 17.99
2NC 22mm Emergency Stop Push Button Switch (Red Mushroom)USD 17.50

Decision matrix

  • Pick the Allen Bradley 800T-A2D1 when you need a single heavy-duty flush push button for commercial and industrial control panels.
  • Pick the Allen Bradley 800T-PC416 when you want red, blue, green, and clear indication in one 120V panel head.
  • Pick the four-pack momentary buttons when you need several compact waterproof switches and can wire them without soldering.
  • Pick the mxuteuk 22mm red mushroom e-stop when you need latching emergency shut-off with two normally closed contacts.

Product notes

Allen Bradley 800T-A2D1 Flush Black Push Button

800T-A2D1 "T" ALLEN BRADLEY FLUSH HEAD BLACK PUSH BUTTON NIB NOS

The 800T-A2D1 is a flush-head black push button from the Allen Bradley 800T line, listed as new and built for control equipment panels, commercial wiring, fan control, and industrial use. It carries a heavy-duty feature label and is made in the United States. At a listed USD 30.00, it is the second-most expensive item here, but it gives you one self-contained button rather than a multi-function head. If you are replacing a worn panel control and want the classic Allen Bradley look, this is the button to consider. The trade-off is price per unit: you get one button, while the USD 17.99 four-pack provides four smaller momentary switches if you just need basic contact closure.

Allen Bradley 800T-PC416 Indicator Lights (4-Function)

AB Allen Bradley 800T-PC416 Indicator Lights 4 Function Red Blue Green Clear

This is a multi-color pilot light assembly: one 120V head with red, blue, green, and clear functions. It is suited to showing mode or machine conditions, such as manual versus auto, warnings, or status, through a quad indicator with one bulb drawing about 9.2W when lit. The package includes rubber spacers, the tightening mounting nut, and a decorative barrel nut. It is sold as new-open-box and comes as-is without its original box, which helps explain why it is the highest listed price at USD 65.00. Choose it when a single panel cutout has to convey four different statuses without adding extra pilot light bodies.

4pcs Metal Momentary Push Button Switch (8mm)

4pcs Metal Momentary Push Button Switch Waterproof Silver Point 8mm Mini Micr

This four-pack covers jobs like power start, doorbell, or low-current control. Each button is a metal momentary switch with a high head and silver point, normally open and self-reset: press and hold to close the contact, release to break it. The buttons are waterproof and intended for wet and dusty environments, and they come prewired with wire leads so no soldering is required. The listed price is USD 17.99 for the set. Since the action is momentary rather than latching, treat these as signal buttons, not as emergency stop devices. The 8mm mounting hole requirement is smaller than the 22mm e-stop in this lineup.

2NC 22mm Emergency Stop Push Button Switch (Red Mushroom)

2NC 22mm Emergency Stop Push Button Switch Red Mushroom Equipment e Stop Shut

This mxuteuk e-stop uses a push-twist latching action, so a press stops the machine and a twist releases it. The red mushroom head is 40mm across, the mount hole is 22mm, and the switch carries two normally closed contacts rated at 10 amps with screw terminals. Listed at USD 17.50, it is the least expensive product in this comparison and offers emergency-stop function in a compact industrial-style package. The main limitation is panel fit: the listed maximum panel thickness is 15/64 inch, so a thicker enclosure would push beyond the stated fit range.

Final recommendation by use case

  • Classic heavy-duty push button for commercial and industrial panels: Allen Bradley 800T-A2D1 at USD 30.00.
  • Multi-color status on one head: Allen Bradley 800T-PC416 at USD 65.00.
  • Several compact waterproof momentaries: 4pcs Metal Momentary Push Button Switch at USD 17.99.
  • Red mushroom e-stop with two NC contacts and screw terminals: mxuteuk 2NC 22mm E-Stop at USD 17.50.
Products in this article
800T-A2D1 "T" ALLEN BRADLEY FLUSH HEAD BLACK PUSH BUTTON NIB NOSUSD 30.00View on eBayAB Allen Bradley 800T-PC416 Indicator Lights 4 Function Red Blue Green ClearUSD 65.00View on eBay4pcs Metal Momentary Push Button Switch Waterproof Silver Point 8mm Mini MicrUSD 17.99View on eBay2NC 22mm Emergency Stop Push Button Switch Red Mushroom Equipment e Stop ShutUSD 17.50View on eBay
800T-A2D1 "T" ALLEN BRADLEY FLUSH HEAD BLACK PUSH BUTTON NIB NOSUSD 30.00View on eBayAB Allen Bradley 800T-PC416 Indicator Lights 4 Function Red Blue Green ClearUSD 65.00View on eBay4pcs Metal Momentary Push Button Switch Waterproof Silver Point 8mm Mini MicrUSD 17.99View on eBay2NC 22mm Emergency Stop Push Button Switch Red Mushroom Equipment e Stop ShutUSD 17.50View on eBay

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