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Disconnects

Industrial-Grade Disconnects for Safe Power Isolation

Shop dependable disconnect switches designed to safely isolate electrical equipment during maintenance or emergencies. We offer fused and non-fused safety disconnects from trusted brands like Square D, Cutler-Hammer, and Eaton—available in a range of voltage and amperage options.

Perfect for commercial, industrial, and heavy-duty applications, our selection includes both indoor and outdoor models built for durability and code compliance. Each unit is inspected and tested to ensure long-lasting performance.

Need help finding the right disconnect for your system? Our experts are ready to assist with fast, accurate support.

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Square D NQOD442L600 NQOD Panelboard 600A 208Y/120V 3PH 4W 42 Circuit MAIN LUG P283 Used

Square D NQOD442L600 NQOD Panelboard 600A 208Y/120V 3PH 4W 42 Circuit MAIN LUG P283 Used

$3,000.00

$3,000.00

Square D NQOD442L400 Panelboard 400A 208Y/120V 3PH 4W Indoor Encl 42 Circuit MLO P470 Used

Square D NQOD442L400 Panelboard 400A 208Y/120V 3PH 4W Indoor Encl 42 Circuit MLO P470 Used

$1,000.00

$1,000.00

Square D NQOD442L400 Panelboard 400A 208Y/120V 3PH 4W Indoor Encl MLO 42 Circuit P469 Used

Square D NQOD442L400 Panelboard 400A 208Y/120V 3PH 4W Indoor Encl MLO 42 Circuit P469 Used

$1,000.00

$1,000.00

Square D NQOD442L400TFL Panelboard 400A 208Y/120V 3PH 4W 42 Cir Indoor Encl MLO P365 Used

Square D NQOD442L400TFL Panelboard 400A 208Y/120V 3PH 4W 42 Cir Indoor Encl MLO P365 Used

$1,000.00

$1,000.00

Square D NQOD442L225CU Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB 225Amp P637 Used

Square D NQOD442L225CU Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB 225Amp P637 Used

$750.00

$750.00

Square D NQOD442L2C Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB QBL32200 P634 Used

Square D NQOD442L2C Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB QBL32200 P634 Used

$750.00

$750.00

SQUARE D NQOD442L225 MLO Panelboard 225A 208Y/120V 3P 4W Main Lug 42 Circuit P297 Used

SQUARE D NQOD442L225 MLO Panelboard 225A 208Y/120V 3P 4W Main Lug 42 Circuit P297 Used

$500.00

$500.00

SQUARE D NQOD442L225 Panelboard 225A 208Y/120V 4W 3P Main Lug MLO 42 Circuit P295 Used

SQUARE D NQOD442L225 Panelboard 225A 208Y/120V 4W 3P Main Lug MLO 42 Circuit P295 Used

$500.00

$500.00

SQUARE D NQOD442L225 Panelboard 225A 208Y/120V 3PH 4W Main Lug 42 Circuit MLO P287 Used

SQUARE D NQOD442L225 Panelboard 225A 208Y/120V 3PH 4W Main Lug 42 Circuit MLO P287 Used

$650.00

$650.00

Square D NQOD430M100CUNL Panelboard 100A 208/120V 3PH 4W Indoor Encl MCB 30 Cir P569 Used

Square D NQOD430M100CUNL Panelboard 100A 208/120V 3PH 4W Indoor Encl MCB 30 Cir P569 Used

$750.00

$750.00

Square D NQOD20M100CU Panelboard 100A 240V 1PH 3W Indoor Encl 20 Circuit MCB P528 Used

Square D NQOD20M100CU Panelboard 100A 240V 1PH 3W Indoor Encl 20 Circuit MCB P528 Used

$750.00

$750.00

Square D NQOD20L100CU Panelboard 100A 120/240V 3PH 3W MLO Main Lug 20CIR NEMA 1 P309 Used

Square D NQOD20L100CU Panelboard 100A 120/240V 3PH 3W MLO Main Lug 20CIR NEMA 1 P309 Used

$500.00

$500.00

Square D NQOD12M100CU Panelboard 100A 120/240V 1PH 3W Indoor Encl 12 Circuit MCB P481 Used

Square D NQOD12M100CU Panelboard 100A 120/240V 1PH 3W Indoor Encl 12 Circuit MCB P481 Used

$750.00

$750.00

Square D NQOD Panelboard 100A 208/120V 3PH 4W 42 Circuit Indoor Encl MCB QOB3100 P648 Used

Square D NQOD Panelboard 100A 208/120V 3PH 4W 42 Circuit Indoor Encl MCB QOB3100 P648 Used

$750.00

$750.00

Square D NOQD Panelboard 100A 120/240V 1PH 3W MLO Main Lug 24 CIR NEMA 1 P527 Used

Square D NOQD Panelboard 100A 120/240V 1PH 3W MLO Main Lug 24 CIR NEMA 1 P527 Used

$500.00

$500.00

Square D NQOD Panelboard 125A 120/208V 1PH 3W 42 Cir Indoor Encl MCB Q2L32125 P466 Used

Square D NQOD Panelboard 125A 120/208V 1PH 3W 42 Cir Indoor Encl MCB Q2L32125 P466 Used

$750.00

$750.00

SQUARE D NQOD442L225 NQOD Panelboard 225A 208Y/120V 3P 4W Main Lug MLO MH35 P321 Used

SQUARE D NQOD442L225 NQOD Panelboard 225A 208Y/120V 3P 4W Main Lug MLO MH35 P321 Used

$500.00

$500.00

Square D NQOD Panelboard 100A 208Y/120V 3PH 4W 100 Amp Main Lug MLO 42 Circuit P263 Used

Square D NQOD Panelboard 100A 208Y/120V 3PH 4W 100 Amp Main Lug MLO 42 Circuit P263 Used

$750.00

$750.00

Square D NQOD Panelboard 125A 208Y/120V 3PH 4W 125 Amp 42 Cir Main Q2L3125 MCB P252 Used

Square D NQOD Panelboard 125A 208Y/120V 3PH 4W 125 Amp 42 Cir Main Q2L3125 MCB P252 Used

$750.00

$750.00

Square D NQOD Panelboard 150A 208Y/120V 3PH 4W 42 Circuit 150 Amp MCB Q2L3150 P247 Used

Square D NQOD Panelboard 150A 208Y/120V 3PH 4W 42 Circuit 150 Amp MCB Q2L3150 P247 Used

$750.00

$750.00

Square D NQOD Panelboard 100A 120/208V 3PH 4W MLO 24 Circuit Main Lug 100 Amp P103 Used

Square D NQOD Panelboard 100A 120/208V 3PH 4W MLO 24 Circuit Main Lug 100 Amp P103 Used

$500.00

$500.00

Square D NQ442L2C NQ Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB QJL32150 P655 Used

Square D NQ442L2C NQ Panelboard 225A 240V 3PH 4W 42 Cir Indoor Encl MCB QJL32150 P655 Used

$750.00

$750.00

Square D NQ442L2C NQ Panelboard 225A 240V 3PH 4W Indoor Encl 42 Circuit MLO P622 Used

Square D NQ442L2C NQ Panelboard 225A 240V 3PH 4W Indoor Encl 42 Circuit MLO P622 Used

$500.00

$500.00

Square D NQ NQ442L2C Panelboard 225A 240V 3PH 4W MLO Indoor Encl 42 Circuit P620 Used

Square D NQ NQ442L2C Panelboard 225A 240V 3PH 4W MLO Indoor Encl 42 Circuit P620 Used

$500.00

$500.00

Square D NQ NQ442L2C Panelboard 225A 240V 3PH 4W Indoor Encl 42 Circuit MLO P618 Used

Square D NQ NQ442L2C Panelboard 225A 240V 3PH 4W Indoor Encl 42 Circuit MLO P618 Used

$500.00

$500.00

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir LAP36400MB MCB Indoor Encl P677 New

Square D NF Panelboard 400A 480/277V 3PH 4W 42Cir LAP36400MB MCB Indoor Encl P677 New

$3,500.00

$3,500.00

Square D NF Panelboard 400A 480/277V 3PH 4W Main LAP36400MB MCB Indoor Encl P670 New

Square D NF Panelboard 400A 480/277V 3PH 4W Main LAP36400MB MCB Indoor Encl P670 New

$4,500.00

$4,500.00

Square D NF Panelboard 400A 480Y/277V 3PH 4W 42 Cir Indoor Encl MLO HDL36150U33X P639 New

Square D NF Panelboard 400A 480Y/277V 3PH 4W 42 Cir Indoor Encl MLO HDL36150U33X P639 New

$4,500.00

$4,500.00

Square D NF Panelboard 600A 480Y/277V 3PH 4W 42 Cir Indoor Encl MCB LGP36600U31X P608 Used

Square D NF Panelboard 600A 480Y/277V 3PH 4W 42 Cir Indoor Encl MCB LGP36600U31X P608 Used

$4,500.00

$4,500.00

Square D NF Panelboard 600A 480/277V 3PH 4W 54 Circuit Main Lug MLO Indoor Encl P572 Used

Square D NF Panelboard 600A 480/277V 3PH 4W 54 Circuit Main Lug MLO Indoor Encl P572 Used

$4,000.00

$4,000.00

Square D NF Panelboard 400A 600/347V 3PH 4W MLO 54 Circuit Main Lug Indoor Encl P570 Used

Square D NF Panelboard 400A 600/347V 3PH 4W MLO 54 Circuit Main Lug Indoor Encl P570 Used

$3,000.00

$3,000.00

Square D NF Panelboard 400A 600/347V 3PH 4W MLO 54 Circuit Indoor Encl MH62 P564 Used

Square D NF Panelboard 400A 600/347V 3PH 4W MLO 54 Circuit Indoor Encl MH62 P564 Used

$3,000.00

$3,000.00

Square D NF Panelboard 600A 480Y/277V 3PH 4W MLO 54 Circuit Main Lug Indoor Encl P560 Used

Square D NF Panelboard 600A 480Y/277V 3PH 4W MLO 54 Circuit Main Lug Indoor Encl P560 Used

$4,000.00

$4,000.00

Square D NF Panelboard 300A 480/277V 3PH 4W Indoor Encl 54 Cir MCB Main LCP36300 P535 Used

Square D NF Panelboard 300A 480/277V 3PH 4W Indoor Encl 54 Cir MCB Main LCP36300 P535 Used

$5,200.00

$5,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Box MH44 250 Amp P409 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Box MH44 250 Amp P409 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Cir Box MH44 Main Lug MLO 250Amp P405 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Cir Box MH44 Main Lug MLO 250Amp P405 Used

$1,000.00

$1,000.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Cir 250 Amp Box MH44 240V P396 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Cir 250 Amp Box MH44 240V P396 Used

$1,000.00

$1,000.00

Square D NF Panelboard 400A 600Y/347V 3PH 4W MLO 42 Circuit Main Lug Indoor Encl P375 Used

Square D NF Panelboard 400A 600Y/347V 3PH 4W MLO 42 Circuit Main Lug Indoor Encl P375 Used

$1,200.00

$1,200.00

Square D NF Panelboard 400A 600Y/347V 3PH 4W MLO 42 Cir Main Lug Indoor Encl P373 Used

Square D NF Panelboard 400A 600Y/347V 3PH 4W MLO 42 Cir Main Lug Indoor Encl P373 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl 250 Amp MLO P355 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl 250 Amp MLO P355 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl Main Lug MLO P354 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl Main Lug MLO P354 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl MLO Main Lug P353 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl MLO Main Lug P353 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl Main Lug MLO P352 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl Main Lug MLO P352 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl MLO 250 Amp P346 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W 42 Circuit Indoor Encl MLO 250 Amp P346 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4W Main Lug 42 Circuit MLO Indoor Encl P341 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4W Main Lug 42 Circuit MLO Indoor Encl P341 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH Main Lug MLO Indoor Encl 42 Circuit 4W P340 Used

Square D NF Panelboard 250A 600Y/347V 3PH Main Lug MLO Indoor Encl 42 Circuit 4W P340 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH Main Lug MLO Indoor Encl 42 Circuit 4W P339 Used

Square D NF Panelboard 250A 600Y/347V 3PH Main Lug MLO Indoor Encl 42 Circuit 4W P339 Used

$1,200.00

$1,200.00

Square D NF Panelboard 250A 600Y/347V 3PH 4WIndoor Encl Main Lug 42 Circuit MLO P336 Used

Square D NF Panelboard 250A 600Y/347V 3PH 4WIndoor Encl Main Lug 42 Circuit MLO P336 Used

$1,200.00

$1,200.00

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