Apply to be a TradeMaster!
Filter menu expanded

Filters

666 items
Reset

SORT

Product Availability

Show In Stock Only (231)

Product Type

Access Door (4)
Control Module (6)
Electrical Part (423)
Light Switch (1)
Relay (173)
Replacement Part (2)
Switching Relay (5)
Transformer (52)

Mount

DIN Rail (2)
Foot (38)
Hub (36)
Panel (2)
Remote (1)

Price Range

Under $1 (2)
$1 to $5 (9)
$5 to $10 (11)
$10 to $15 (6)
$15 to $20 (12)
$20 to $25 (27)
$25 to $30 (19)
$30 to $35 (28)
$35 to $40 (37)
$40 to $45 (40)

Functional Devices

Help Face
Need a little help?
666 items
Grid
List
Compare
Product Image of EnOcean 902 MHz Wireless Relay, Transceiver / Repeater, 20A SPDT, 208 Vac Power Input, Dry Contact Input, NEMA 1 Housing
$225.16 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 4" Track Mount Power Relay, 30 Amp 3PDT, with 24 VAC/DC Coil
$120.20 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of 23.00" H x 22.50" W x 0.25" Perforated Steel Sub-Panel, For Use with MH5500
$264.50 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of EnOcean 902 MHz Wireless Relay, Transceiver / Repeater, 20A SPDT, 120-277 Vac Power Input, 0-10 Vdc Analog Output, NEMA 1 Housing
$259.83 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Transformer, 50VA, 240 to 24 Vac, Circuit Breaker, Foot & Single Threaded Hub Mount
$54.11 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Current Switch, Solid Remote, Fixed, 1.25-150A
$62.80 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 24-1/2" x 12-1/2" x 6-1/2" Metal Housing, NEMA 1 w/ SP3804S Sub-Panel & Coin Latch
$280.85 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Current Switch and Relay Combination, 20 Amp SPST + Override, 24 Vac/dc Coil, Fixed, 0.50-20 Amp
$114.60 each
In Stock
Get 1 by Fri, Aug 14
In Stock
Get 1 by Fri, Aug 14
Compare
Product Image of Enclosed Pilot Relay, 10A SPST-N/C + Override + Monitor, 10-30 Vac/dc/120 Vac Coil, NEMA 1 Housing
$50.30 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Power Control Center, 10A Switch / Circuit Breaker, 120 Vac, 2 Outlets, Terminals, NEMA 1 Housing
Power Control Center, 10A Switch / Circuit Breaker, 120 Vac, 2 Outlets, Terminals, NEMA 1 Housing
SKU: PSPT2RB10
Functional Devices
SKU: PSPT2RB10
$54.70 each
In Stock
Get 2 by Tue, Aug 11
In Stock
Get 2 by Tue, Aug 11
Compare
Product Image of Pilot Panel Relay, 15A SPST + Override + Monitor w/ 10-30 Vac/DC/120 Vac Coil, 2-3/4" Track Mount
$51.70 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Current Switch and Relay Combination, 10A SPDT Relay, 10-30v Coil, Remote Solid Core, Fixed, 1.25-150A
$108.30 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of Enclosed Mechanically Latching Relay, 20A SPST + True Override, w/ 24 Vac/DC Coil, Red Housing
$128.25 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 24-1/2" x 12-1/2" x 6-1/2" Metal Housing, NEMA 1 w/ 4" x 18" Mounting Track
$264.90 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Power Panel Relay, 20A SPDT w/ 24 Vac/DC/208-277 Vac Coil, 4" Track Mount
$39.75 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Pilot Relay, 10A SPST + Override, 10-30 Vac/dc/208-277 Vac Coil, Hi/Lo Voltage Separation, NEMA 1 Housing
$56.00 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 12.5" H x 12.5" W x 7.0" D with SP3304 Sub-Panel Metal Enclosure, NEMA 1
$234.80 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of BACnet MS/TP Network Relay Device w/ Binary Output Set Point, One Binary Output + Override, 24 Vac/dc Power Input, NEMA 4 Housing
$254.80 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Split Core, Current Switch, Fixed, 0.50-150 Amp, Terminal
$54.40 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of Power Control Center, 4A Switch / Circuit Breaker, 120 Vac, 2 Outlets, Terminals, NEMA 1 Housing
$61.15 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 14-1/2" x 7-7/10" x 3-9/10" Metal Housing, NEMA 1 w/ 4" x 12" Mounting Track
$104.40 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 4" Track Mount Power Relay, 30 Amp DPST-N/O, with 24 VAC/DC Coil
$85.85 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of Enclosed Pilot Relay, Hi/Lo Voltage Separation, 10 Amp SPST & Override, with 10-30 VAC/DC/120 VAC Coil
$54.00 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of Transducer & Relay Combination, 10A SPDT, 10-30 Vac/dc Coil, Analog, 0-10A, 0-5 Vdc/0-10 Vdc Output, NEMA 1 Housing
$70.15 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Self-Powered Solid Core Current Transformer with 333 mV Output (5A)
$24.83 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of UPS Power Control Center Interface Board, Status Contacts, 2.75" Track Mount in 12" x 14" x 6" Metal Enclosure
$304.50 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Switch, 20A, 2 Position Maintained, On/Off, 2 Wires, Red Housing
$29.25 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Polarized Relay, 10A SPST-N/C + Override w/ 24 Vac/DC Coil, Red Housing
$40.10 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Pilot Panel Relay, 15A SPST + Override + Monitor w/ 10-30 Vac/DC/208-277 Vac Coil, 2-3/4" Track Mount
$48.05 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Mechanically Latching Relay, 20A SPST + True Override, w/ 24 Vac/DC Coil, Status LED, Auxulliary Output, NEMA 1 Housing
$138.45 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Mechanically Latching Relay, 20A SPST + True Override w/ 12 Vac/DC Coil, Status LED, Auxiliary Output, NEMA 1 Housing
$165.65 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of NEMA 1 Metal Enclosure w/ Coin Latch (24.5" x 12.5" x 6.5")
$310.28 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of DIN Rail Current Switch & Relay Combination, 10A SPST-N/O + Coil Side Override, 10-30 Vac/dc Coil, Adjustable, 0.25-10A
$174.00 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Single 100 VA Power Supply, 10 Amp Main Breaker (120 Vac to 24 Vac Enclosure)
$176.30 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of 24-1/2" x 12-1/2" x 6-1/2" Metal Housing, NEMA 1 w/ 2-3/4" x 18" Mounting Track
$273.40 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Power Panel Relay, 10A DPDT w/ 24 Vac/DC/208-277 Vac Coil, 4" Track Mount
$44.25 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Pilot Relay, 10A SPDT + Override, 10-30 Vac/dc/208-277 Vac Coil, Hi/Lo Voltage Separation, NEMA 1 Housing
$70.20 each
In Stock
Get 5 by Wed, Aug 12
In Stock
Get 5 by Wed, Aug 12
Compare
Product Image of Current Transformer, Rope, Rogowski Coil, 70mV Output, 8000A, Wire Leads
$379.00 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 2.75" Track Mount Pilot Relay, 15 Amp SPST & Override, with 12 VAC/DC Coil
$37.50 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of Enclosed Current Switch, Adjustable, 0.50-30A, NEMA 1 Housing
$47.10 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Transformer, 50VA, 277 to 24 Vac, Circuit Breaker, Foot and Single Threaded Hub Mount
$42.10 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of 24-1/2" x 10-1/4" x 3-9/10" Metal Housing, NEMA 1 w/ 4" x 24" Mounting Track
$258.00 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 12-1/2" x 12-1/2" x 7" Metal Housing, NEMA 1 w/ SP3304 Sub-Panel & Key Latch
$278.35 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of 40 VA Power Supply, 120 Vac to 24 Vac, 2-3/4" Track Mount
$52.80 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of BACnet MS/TP Network Relay Device, One Binary Output + Override, One Binary Input, 24Vac/dc Power Input, NEMA 1 Housing
$243.50 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Enclosed Low Input/Optoisolated Relay, 20A DPDT, 208-277 Vac Power Input, 5-25 Vac/dc Control Input, Hi/Lo Voltage Separation, NEMA 1 Housing
$148.25 each
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Out of Stock
Get it by Tue, Aug 25 - Tue, Sep 1
Compare
Product Image of Split Core, Adjustable Current Switch, 0.75-150 Amp, Terminal
$55.00 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Compare
Product Image of 4" Track Mount Pilot Relay, 15 Amp SPST, Override & Monitor, with 10-30 VAC/DC/120 VAC Coil
4" Track Mount Pilot Relay, 15 Amp SPST, Override & Monitor, with 10-30 VAC/DC/120 VAC Coil
SKU: RIBMU1SM-250
Functional Devices
SKU: RIBMU1SM-250
$58.15 each
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Backorder
Get it by Wed, Sep 9 - Wed, Oct 7
Resources
FAQs, Manuals & Videos
Articles
More About Functional Devices
Functional Devices, Inc. has been designing and manufacturing quality electronic devices in the USA since 1969. Current product offerings include relays, current sensors, power control, enclosures, power supplies, transformers, and accessories. Functional Devices has established itself as a leader in the HVAC, Building Controls, Energy Management, Energy Savings, Lighting Controls, and Wireless industries.