Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
BRYANT 4903B Toggle Wall Switch, 3-Way, Maintained, Brown, 120/277V AC, 20 A - Toggle Wall Switches
BRYANTToggle Wall Switches

BRYANT 4903B Toggle Wall Switch, 3-Way, Maintained, Brown, 120/277V AC, 20 A

The BRYANT Wall Switch is a 3-way, maintained toggle switch rated for 120/277V AC and 20 A. This brown, non-illuminated switch (MPN 4903B) is designed for industrial electrical applications requiring a maintained…

SKU 3G-OTH-15885

Also listed as: 4903 B · 4903-B

Brand
BRYANT
Item
4903B Toggle Wall Switch, 3-Way, Maintained, Brown, 120/277V AC, 20 A
Part Number
4903B
Category
Toggle Wall Switches
Available to Order
Also known as:4903BBRYANT
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BRYANT
Manufacturer Part Number
4903B
Illuminated
No
Voltage Rating
120/277V AC

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BRYANT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BRYANT Wall Switch is a 3-way, maintained toggle switch rated for 120/277V AC and 20 A. This brown, non-illuminated switch (MPN 4903B) is designed for industrial electrical applications requiring a maintained contact configuration.

Frequently Asked Questions

What is the BRYANT 4903B wall switch used for?

The BRYANT 4903B is a 3-way, maintained toggle switch used in industrial electrical applications to control a single load from two locations. It is suitable for 120/277V AC circuits up to 20 A, commonly found in commercial and plant environments.

What are the specifications of the BRYANT 4903B toggle switch?

The BRYANT 4903B is a 3-way, maintained toggle switch rated for 120/277V AC and 20 A. It is non-illuminated, brown in color, and designed for industrial use. The manufacturer part number is 4903B.

Where to buy the BRYANT 4903B wall switch worldwide?

3G Electric supplies the BRYANT 4903B wall switch worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a BRYANT 3-way toggle switch?

To install a BRYANT 3-way toggle switch, first turn off power at the breaker. Connect the common wire to the dark screw terminal and the two traveler wires to the brass terminals. Secure the switch in the box and restore power. Always follow local electrical codes.

Used in

Common applications for BRYANT
Healthcare facilities — BRYANT hospital-grade duplex receptacles (e.g., 8200HBWTR) for patient rooms and critical care areas
Commercial office buildings — BRYANT duplex receptacles (e.g., 5262 series) for general power distribution in workstations
Industrial manufacturing plants — BRYANT quad receptacles (e.g., 21254BLK) for high-density power access on production floors
Educational institutions — BRYANT tamper-resistant receptacles for classrooms and laboratories to meet child safety codes
Retail and hospitality — BRYANT single receptacles (e.g., 5261I) for dedicated equipment connections in kitchens or display areas
Data centers — BRYANT 20 A receptacles (e.g., 5-20R) for server rack power distribution units
Not sure this is the right part? Photo-identify it

BRYANT Products

3G Electric supplies BRYANT toggle wall switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BRYANT

View all BRYANT parts
Single-pole, maintained toggle wall switch rated 120/277V AC and 20 A. Features an illuminated design for visibility in low-light conditions. Ivory finish. Suitable for controlling lighting or other loads from one location in commercial and industrial environments
BRYANT
Single-pole, maintained toggle wall switch rated 120/277V AC and 20 A. Features an illuminated design for visibility in low-light conditions. Ivory finish. Suitable for controlling lighting or other loads from one location in commercial and industrial environments
Three-way maintained toggle wall switch with illuminated ivory toggle for visual status indication. Rated 20 A at 120/277V AC. Suitable for controlling a single load from two locations in stairwells, hallways, and large rooms
BRYANT
Three-way maintained toggle wall switch with illuminated ivory toggle for visual status indication. Rated 20 A at 120/277V AC. Suitable for controlling a single load from two locations in stairwells, hallways, and large rooms
Single-pole, maintained toggle wall switch rated 120/277V AC and 15 A. Non-illuminated, brown finish. Used for standard on/off control of lighting and electrical loads in branch circuits for commercial and industrial environments
BRYANT
Single-pole, maintained toggle wall switch rated 120/277V AC and 15 A. Non-illuminated, brown finish. Used for standard on/off control of lighting and electrical loads in branch circuits for commercial and industrial environments
Three-way maintained toggle wall switch rated 120/277V AC and 15A. Illuminated toggle provides visual indication when circuit is on. Ivory finish for standard wall-box installation. Used to control a single load from two locations, such as hallways or staircases
BRYANT
Three-way maintained toggle wall switch rated 120/277V AC and 15A. Illuminated toggle provides visual indication when circuit is on. Ivory finish for standard wall-box installation. Used to control a single load from two locations, such as hallways or staircases
The BRYANT RS315W is a 3-way maintained toggle wall switch rated 120V AC and 15 A. It is non-illuminated with a white finish, designed for wall-mount applications in branch circuits. Typical use includes controlling a single load from two locations, such as hallway or stairway lighting
BRYANT
The BRYANT RS315W is a 3-way maintained toggle wall switch rated 120V AC and 15 A. It is non-illuminated with a white finish, designed for wall-mount applications in branch circuits. Typical use includes controlling a single load from two locations, such as hallway or stairway lighting
Single-pole, maintained toggle wall switch for basic on/off control of lighting or equipment. Rated 120/277V AC, 20 A. Non-illuminated ivory finish. Suitable for flush wall-mount installation in commercial and industrial branch circuits
BRYANT
Single-pole, maintained toggle wall switch for basic on/off control of lighting or equipment. Rated 120/277V AC, 20 A. Non-illuminated ivory finish. Suitable for flush wall-mount installation in commercial and industrial branch circuits

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first