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Functional Devices

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Product Image of Dry Contact Panel Relay, 30A 3PDT, Class 2 Dry Contact Input, 120 Vac Input, 4" Track Mount
$155.05 each
In Stock
Get 1 by Wed, Nov 11
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Product Image of 4" Track Mount Power Relay, 20 Amp SPDT & Override, with 24 VAC/DC/120 VAC Coil
$56.50 each
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Product Image of Panel I/O Expander, 3 Outputs, 24 Vac/dc Power Input, 0-10 Vdc / 0-5 Vdc Control Input, 2-3/4" Track Mount
$137.95 each
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Product Image of Enclosed Power Relay, 20A 3PST-N/C, 24 Vac/dc Coil, Hi/Lo Voltage Separation, NEMA 1 Housing
$161.90 each
Out of Stock
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Product Image of EnOcean 902 MHz Wireless Phase Angle Dimmer, Receiver / Repeater, 120 Vac Power Input, 600W Rated, Dimming Mode Selectable, NEMA 1 Housing
$177.52 each
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Product Image of Split Core, Adjustable Current Switch, 0.75-150 Amp, Terminal
$55.00 each
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Product Image of Current Transformer, Rope, Rogowski Coil, 70mV Output, 6000A, Wire Leads
$270.80 each
Out of Stock
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Product Image of Current Transformer, Rope, Rogowski Coil, 70mV Output, 4000A, Wire Leads
$193.45 each
Out of Stock
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Product Image of Enclosed Mechanically Latching Relay, 20A SPST + True Override, w/ 24 Vac/DC Coil, Red Housing
$128.25 each
Out of Stock
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Product Image of Pilot Panel Relay, 15A SPST-N/C + Override w/ 10-30 Vac/DC/208-277 Vac Coil, 4" Track Mount
$36.15 each
Out of Stock
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Product Image of Panel I/O Expander, 2 Outputs, 24 Vac/dc Power Input, 0-10 Vdc / 0-5 Vdc Control Input, 2-3/4" Track Mount
$158.57 each
Out of Stock
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Product Image of Panel I/O Expander, 4 Outputs, 24 Vac/dc Power Input, 0-10 Vdc / 0-5 Vdc Control Input, 2-3/4" Track Mount
$142.10 each
Out of Stock
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Product Image of Power Panel Relay, 30A DPST-N/C w/ 24 Vac/DC Coil, 2-3/4" Track Mount
$100.15 each
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Product Image of DIN Rail Current Switch & Relay Combination, 10A SPST-N/O, 10-30 Vac/dc Coil, Fixed, 0.25-10A
$122.00 each
Out of Stock
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Product Image of Enclosed Polarized/Alarm Relay Hi/Low Separation 20 Amp SPDT w/ 24 Vac/dc Coil
$47.36 each
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Product Image of Enclosed Pilot Relays, 10A 2 SPDT, 10-30 Vac/dc/208-277 Vac Coil, Hi/Lo Voltage Separation, NEMA 1 Housing
$73.80 each
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Product Image of Current Transducer, Split Core, Analog, 4-20 mA, 0-20A, Wire Leads
$91.25 each
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Product Image of Current Transducer, Solid Core, Analog, 4-20 mA, 0-100A, Wire Leads
$47.84 each
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Product Image of Solid Core, Current Transducer, Analog, 0-5 Vdc Output, 0-20 Amp, Terminals
$30.95 each
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Product Image of Enclosed Power Relay 20A 3PST-N/C w/ 480 Vac Coil, NEMA 1 Housing
$162.65 each
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Product Image of Enclosed Polarized Relay, 10A SPDT-N/C + Override w/ 12 Vac/DC Coil, Red Housing
$36.30 each
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Product Image of Snap-On Pilot Panel Relay, 10A SPDT w/ 24 Vac/DC Coil, DIN Rail Mountable, 2-3/4" Track Mount
$35.30 each
Out of Stock
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Product Image of Enclosed Pilot Relay 10 Amp, SPDT & Override w/ 10-30 Vac/dc/208-277 Vac Coil
$100.98 each
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Product Image of Enclosed Current Switch & Relay Combo, 20A SPST-N/O, Adjustable w/ 24 Vac/DC Coil, Red Housing
$106.95 each
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Product Image of Enclosed Pilot Relay, 10A SPDT w/ 10-30 VDC Limited Inrush Coil, NEMA 4X Housing
$41.65 each
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Product Image of 600VA UPS Backup Power Control Center, 12" x 14" x 6" Metal Enclosure
$481.45 each
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Product Image of 4-1/4" x 7" x 2" Plastic Housing, NEMA 4/4X, 3/4" MNPT Nipple, Gray Lid
$47.55 each
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Product Image of 4-1/4" x 7" x 2" Plastic Housing w/ 2-3/4" x 6" Mounting Track, NEMA 1, 3/4" MNPT Nipple
$34.55 each
Out of Stock
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Product Image of 200 VA Power Supply, 40VA x 5, Class 2 Outputs, 120 Vac - 24 Vac, Hi/Lo LVC, Exterior 120 Vac Receptacle & Circuit Breakers Switches, Metal Enclosure
$721.45 each
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Product Image of Enclosed Single UL Class 2 DC Power Supply, 120 Vac to 24 Vdc at 2.5 Amp
$331.50 each
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Product Image of Single 75 VA Power Supply, 120 to 24 Vac, UL Class 2, Secondary Wires, 10A Main Breaker, Metal Enclosure
$297.90 each
In Stock
Get 1 by Fri, Nov 13
In Stock
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Product Image of 500 VA Power Supply, UL508, Five 100 VA Class 2 Outputs, 480/277/240/120 Vac to 24 Vac, Metal Enclosure
$595.65 each
Out of Stock
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Product Image of 850VA UPS Backup Power Control Center, Status Contacts, 14" x 16" x 6" Metal Enclosure
$846.55 each
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Product Image of 300 VA Power Supply, Three 100 VA Class 2 Outputs, 480/277/240/120 Vac to 24 Vac, Polymetal Subpanel Pre-Mounted
$340.80 each
Out of Stock
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Product Image of 4" Panel Switch 24 Vac w/ LED Indicators
$23.65 each
Out of Stock
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Product Image of Power Control Center, 4A Switch / Circuit Breaker, 120 Vac, 2 Outlets, Terminals, NEMA 1 Housing
$61.15 each
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Product Image of Enclosed Single 40 VA Power Supply, 10 Amp Main Breaker, (120 Vac to 24 Vac Enclosure)
$151.65 each
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Product Image of DIN Rail Mount DC Power Supply Single Switching, 100-240 Vac to 24-28 Vdc, 2.5 Amp
$97.50 each
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Product Image of DIN Rail Mount DC Power Supply, Single Switching, 100-240 Vac to 24-28 Vdc, 3.8A, Screw Terminals
$125.05 each
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Product Image of Switch, 20A, 2 Position Maintained, On/On, 3 Wires, Red Housing
$29.95 each
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Product Image of 23.00" H x 22.50" W x 0.13" Polymetal Sub-Panel, For Use with MH5500
$131.90 each
Out of Stock
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Product Image of Switch, 20A, 2 Position Maintained, On/On, 3 Wires, NEMA 1 Housing
$23.90 each
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Product Image of EnOcean 902 MHz Wireless Key Card Transmitter Switch
$161.37 each
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Product Image of Transformer, 175 VA, 120 to 24 Vac, Thermal Fuse on Primary, Foot and Single Threaded Hub Mount
$88.10 each
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Product Image of Transformer, 240 VA, 120 to 24 Vac, Foot and Single Threaded Hub Mount, Bottom Opening
$99.85 each
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Product Image of 19.00" H x 11.75" W x 0.25" Perforated Steel Sub-Panel, For Use with MH3800
$142.75 each
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Product Image of 600 VA Uninterruptible Power Supply
600 VA Uninterruptible Power Supply
SKU: UPS600
Functional Devices
SKU: UPS600
$306.62 each
Out of Stock
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Out of Stock
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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.
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