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Functional Devices

We are best known for our RIB (Relay in a Box®) brand product lines. We manufacture our products in the heartland of Indiana where every unit is tested before it leaves the production floor to ensure our customers get the product quality they have come to expect. RIB’s ease of installation, product performance and durability are why our customers enjoy confidence and peace of mind in every box with each RIB purchase.

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Picture of 24V 15AMP RELAY W/ JUMPER

24V 15AMP RELAY W/ JUMPER

FUNCTIONAL DEV:RIBMN24S-J
SKU: FUNCTIONAL DEV:RIBMN24S-J
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V

LONWORKS 20A SPST 24V

FUNCTIONAL DEV:RIBMW24SB-LNAI
SKU: FUNCTIONAL DEV:RIBMW24SB-LNAI
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V 1DI 1T2

LONWORKS 20A SPST 24V 1DI 1T2

FUNCTIONAL DEV:RIBMW24SB-LNT2
SKU: FUNCTIONAL DEV:RIBMW24SB-LNT2
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V

LONWORKS 20A SPST 24V

FUNCTIONAL DEV:RIBMW24SB-LNT3
SKU: FUNCTIONAL DEV:RIBMW24SB-LNT3
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPDT 24V/208-277V

LONWORKS 20A SPDT 24V/208-277V

FUNCTIONAL DEV:RIBTW2402B-LN
SKU: FUNCTIONAL DEV:RIBTW2402B-LN
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V/208-277V

LONWORKS 20A SPST 24V/208-277V

FUNCTIONAL DEV:RIBTW2402SB-LN
SKU: FUNCTIONAL DEV:RIBTW2402SB-LN
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V

LONWORKS 20A SPST 24V

FUNCTIONAL DEV:RIBTW24SB-LNAI
SKU: FUNCTIONAL DEV:RIBTW24SB-LNAI
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V

LONWORKS 20A SPST 24V

FUNCTIONAL DEV:RIBTW24SB-LNT3
SKU: FUNCTIONAL DEV:RIBTW24SB-LNT3
$0.00
Product Availability: Out of stock
Picture of LONWORKS 20A SPST 24V/120V

LONWORKS 20A SPST 24V/120V

FUNCTIONAL DEV:RIBTWX2401SB-LN
SKU: FUNCTIONAL DEV:RIBTWX2401SB-LN
$0.00
Product Availability: Out of stock
Picture of 208-277VAC 24VAC/DC 20A RELAY

208-277VAC 24VAC/DC 20A RELAY

FUNCTIONAL DEV:RIBTWX2402SB-LN
SKU: FUNCTIONAL DEV:RIBTWX2402SB-LN
$0.00
Product Availability: Out of stock
Picture of 50VA 120/24VAC TRANSFORMER

50VA 120/24VAC TRANSFORMER

FUNCTIONAL DEV:TR050VA001
SKU: FUNCTIONAL DEV:TR050VA001
$0.00
Product Availability: Out of stock
Picture of XFRMR US MADE 40VA 120-24V

XFRMR US MADE 40VA 120-24V

FUNCTIONAL DEV:TR40VA001US
SKU: FUNCTIONAL DEV:TR40VA001US
$0.00
Product Availability: Out of stock
Picture of XFRMR 40VA 120-24V

XFRMR 40VA 120-24V

FUNCTIONAL DEV:TR40VA002US
SKU: FUNCTIONAL DEV:TR40VA002US
$0.00
Product Availability: Out of stock
Picture of XFRMR 40VA 120-24V

XFRMR 40VA 120-24V

FUNCTIONAL DEV:TR40VA022
SKU: FUNCTIONAL DEV:TR40VA022
$0.00
Product Availability: Out of stock
Picture of XFRMR 50VA 277-24V; 2 HUBS

XFRMR 50VA 277-24V; 2 HUBS

FUNCTIONAL DEV:TR50VA007
SKU: FUNCTIONAL DEV:TR50VA007
$0.00
Product Availability: Out of stock
Picture of TRANSFORMER 120/208/240:24VAC 50VA CLASS 2

TRANSFORMER 120/208/240:24VAC 50VA CLASS 2

FUNCTIONAL DEV:TR50VA016
SKU: FUNCTIONAL DEV:TR50VA016
$0.00
Product Availability: Out of stock
Picture of XFRMR 75VA 277-24V

XFRMR 75VA 277-24V

FUNCTIONAL DEV:TR75VA003
SKU: FUNCTIONAL DEV:TR75VA003
$0.00
Product Availability: Out of stock
Picture of DRILL SCREW #8 X 5/8 HEX HEAD

DRILL SCREW #8 X 5/8 HEX HEAD

FUNCTIONAL DEV:DS80625
SKU: FUNCTIONAL DEV:DS80625
$0.22
Product Availability: Out of stock
Picture of 2LX2.75W MOUNTING TRACK

2LX2.75W MOUNTING TRACK

FUNCTIONAL DEV:MT212-2
SKU: FUNCTIONAL DEV:MT212-2
$1.20
Product Availability: Out of stock
Picture of RELAYMOUNTINGTRACK 2LONGX4W

RELAYMOUNTINGTRACK 2LONGX4W

FUNCTIONAL DEV:MT4-2
SKU: FUNCTIONAL DEV:MT4-2
$1.42
Product Availability: Out of stock
Picture of ADAPTRACK DIN RAIL TRACK 4X2

ADAPTRACK DIN RAIL TRACK 4X2

FUNCTIONAL DEV:AT4-2
SKU: FUNCTIONAL DEV:AT4-2
$2.34
Product Availability: Out of stock
Picture of WALL SWITCH PLATE WHITE

WALL SWITCH PLATE WHITE

FUNCTIONAL DEV:WSTP-W
SKU: FUNCTIONAL DEV:WSTP-W
$2.34
Product Availability: Out of stock
Picture of MOUNTING TRACK 2.75 X 4IN

MOUNTING TRACK 2.75 X 4IN

FUNCTIONAL DEV:MT212-4
SKU: FUNCTIONAL DEV:MT212-4
$3.61
Product Availability: Out of stock
Picture of RELAY MOUNTING TRACK 4X4

RELAY MOUNTING TRACK 4X4

FUNCTIONAL DEV:MT4-4
SKU: FUNCTIONAL DEV:MT4-4
$3.81
Product Availability: Out of stock
Picture of PLUGGABLE L TERMINAL STRIP

PLUGGABLE L TERMINAL STRIP

FUNCTIONAL DEV:TS-AN
SKU: FUNCTIONAL DEV:TS-AN
$4.03
Product Availability: Out of stock
Picture of END STOPS FOR DIN RAIL 35MM

END STOPS FOR DIN RAIL 35MM

FUNCTIONAL DEV:ADIN35ES
SKU: FUNCTIONAL DEV:ADIN35ES
$4.16
Product Availability: Out of stock
Picture of 6 OF 2.75 WIDE MNTG TRACK

6 OF 2.75 WIDE MNTG TRACK

FUNCTIONAL DEV:MT212-6
SKU: FUNCTIONAL DEV:MT212-6
$5.30
Product Availability: Out of stock
Picture of MOUNTING TRACK 4.00 X 6 IN.

MOUNTING TRACK 4.00 X 6 IN.

FUNCTIONAL DEV:MT4-6
SKU: FUNCTIONAL DEV:MT4-6
$5.43
Product Availability: Out of stock
Picture of TERMINAL COVER FOR PSH[5/3]00A

TERMINAL COVER FOR PSH[5/3]00A

FUNCTIONAL DEV:APS53-TC
SKU: FUNCTIONAL DEV:APS53-TC
$6.63
Product Availability: Out of stock
Picture of ADAPTRACK DIN RAIL TRACK 4X6

ADAPTRACK DIN RAIL TRACK 4X6

FUNCTIONAL DEV:AT4-6
SKU: FUNCTIONAL DEV:AT4-6
$6.71
Product Availability: Out of stock