Bryant 4821 SPDT 15A Momentary...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$49.91
Bryant 4821 SPDT 15A Momentary-Contact Pushbutton AC Switch

Bryant 4821 SPDT 15A Momentary-Contact Pushbutton AC Switch

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Model: 4821

In Stock (leaves warehouse same day if ordered before 3pm ET)

$49.91
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Bryant 4821 SPDT 15A Momentary-Contact Pushbutton AC Switch

The Bryant 4821 is a single-pole double-throw (SPDT) 15A momentary-contact AC switch built for precise, repeatable manual control in commercial and industrial control-circuit applications. Rated for 15A of AC service, this momentary switch automatically returns to its neutral position once released, making it well suited for pushbutton-style control, signaling, and interlock circuits. As an SPDT device, the 4821 routes a single input to one of two output paths, supporting a wide range of control-circuit configurations. This switch is available in Brown, Ivory, and Light Almond finishes, so electricians can match device plates and interior finishes across a project while retaining the same SPDT, 15A momentary-contact performance.

Key Features

  • 15A AC Rating: Rated for 15A of AC service, suitable for standard control-circuit loads.
  • SPDT Configuration: Single-pole double-throw switching allows a common input to be directed to either of two output contacts for flexible circuit control.
  • Momentary-Contact Action: The switch automatically returns to its neutral, at-rest position when released, making it ideal for pushbutton and interlock control schemes.
  • AC Switch Design: Purpose-built for AC control circuits rather than general lighting or receptacle loads.
  • Model 4821: Identified under Bryant's 4821 designation for straightforward specification and reordering.
  • Finish Options: Available in Brown, Ivory, and Light Almond to coordinate with device plates and wiring device finishes across a project.
  • Professional-Grade Construction: Engineered by Bryant for dependable, repeatable performance in commercial and industrial electrical systems.
  • Manual Actuation: Operated by hand, giving personnel direct, immediate control over the circuits it switches.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Pushbutton Control Stations
  • Industrial Machine and Equipment Control Panels
  • Signaling and Indicator Circuits
  • Momentary Interlock and Safety Control Circuits
  • Commercial and Industrial Control Wiring
  • Panel-Mounted Manual Control Applications

Why Bryant?

Bryant has long been a trusted source for electrical devices used in demanding commercial and industrial environments. The 4821 SPDT momentary-contact AC switch reflects that standard, delivering consistent 15A switching performance for control-circuit applications where reliability matters, and its Brown, Ivory, and Light Almond finish options make it easy to specify for the look of any panel or device plate. For electricians and contractors who need dependable momentary switching, Bryant remains a proven choice, and the 4821's straightforward SPDT, 15A rating makes it easy to specify with confidence for control-circuit projects.

Product Specs

Product Type:
Specialty Switch
Configuration:
SPDT
Amperage Rating:
15A
Series:
4821
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Switches

Bryant 4821 – Frequently Asked Questions

1) What does momentary-contact mean on the Bryant 4821 switch, and can I use it as a regular wall light switch?
Momentary means the 4821 does not stay where you put it. Push or throw it and the contacts transfer; let go and it springs back to its neutral, at-rest position. That makes it a control device for pushbutton stations, signaling, and interlock circuits, not a maintained light switch. If you need the circuit to stay on after you release the handle, you need a maintained-contact toggle switch instead, not the 4821.
2) What does SPDT give me on the Bryant 4821 compared to a single-pole switch?
SPDT is single-pole double-throw: one common input gets routed to either of two output contacts. On the 4821 that lets one manual actuation pick between two circuit paths, so you can energize one leg while the other drops, which is how momentary interlock and two-path signaling schemes are wired. A plain single-pole switch only makes or breaks one path and cannot do that transfer.
3) Is the Bryant 4821 rated for 15 amps AC, and is it suitable for a motor or a lighting load?
The 4821 carries a 15A AC rating and it is built as a control-circuit device rather than a general lighting or receptacle switch. Treat 15A as the ceiling for standard control loads: pilot circuits, signaling, coil and interlock wiring in panels. It is not a DC device, and it is not the part to use for switching branch lighting or a receptacle circuit.
4) Which Bryant 4821 part number do I order for brown, ivory, or light almond?
Three color choices, and the color is carried in the suffix: 4821 is brown, 4821I is ivory, and 4821L is light almond. Electrical performance is identical across all three, so pick the one that matches the device plates and other wiring devices already on the job.
5) Can I standardize on the Bryant 4821 across several control panels in one building?
Yes, and that is a common way to buy it. The 4821 is a single Bryant series with one electrical configuration (SPDT, 15A AC) and three finishes, so an MRO or facilities buyer can stock one model number and cover every momentary control station in the building. Keeping to one finish suffix, 4821 for brown, 4821I for ivory, or 4821L for light almond, keeps replacement plates consistent too.
6) Where would an electrician actually use the Bryant 4821 momentary switch?
Typical placements are pushbutton control stations, industrial machine and equipment control panels, signaling and indicator circuits, momentary interlock and safety control circuits, and panel-mounted manual control where an operator needs immediate hands-on control. It is a manually actuated device, so it belongs where a person is at the panel, not in an automated or remotely driven circuit.
How fast can I get the Bryant 4821 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bryant 4821 come with a warranty?
Absolutely. The Bryant 4821 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bryant 4821?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Bryant 4821 from ZenSupply?
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