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Square-D

Square-D

240V and 600V NEMA 3R Safety Switch Disconnects


The National Electric Code, section 690.15, requires PV arrays to have a disconnecting means to isolate the inverter from the PV power source. Utility grid-tie inverters that utilize PV arrays with voltages above 250 VDC require a 600 VDC rated disconnect to perform this function. For inverters that do not include a DC disconnect, one of these can be used. The Square-D 600 VDC 30, 60, and 100 A 3-pole safety switches are rated by the factory to handle one 600 VDC circuit per pole. The 30 A switch is rated for 15 A Isc for non-fused and 12.8 A Isc for fused. The 60 A switch is rated for 48 A Isc for non-fused and 38 A Isc for fused. The 100 A switch is rated for 80 A Isc for non-fused and 64 A Isc for fused. They can be used for disconnecting up to 3 PV arrays for 3 grid-tie inverters. All of the Square-D 600 VDC disconnects are rated for disconnecting one circuit at full rated power using 2 poles in series.

Many utilities require an AC disconnect between a grid-tie inverter and the AC load center, close to the AC service entrance, and with a visible and lockable handle. A 30 A /240 V disconnect works for up to 5 kW at 240 VAC and the 60 A disconnect works for up to 11 kW. Use an AC load center to connect multiple inverters to a single disconnect. The breakers can be back-fed with the inverter outputs and the load center main lugs will handle the combined outputs to be connected to the AC disconnect. Use Class R fuses of the proper voltage and amperage for fused disconnects. 600 V fuses will not fit into 240 V disconnects, and 250 VAC/125 VDC fuses will not fit into 600 V disconnects.

 

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DISCONNECT, SQUARE D, H368NR,1200A, 600V
DISCONNECT, SQUARE D, H368NR,1200A, 600V, 3P, FUSIBLE, NEMA 3R Heavy Duty Square D AC Safety ..
$1,076.19
Ex Tax: $1,076.19
DISCONNECT, SQUARE D, HU361DS, 30A, 600V
DISCONNECT, SQUARE D, REHU493IP, 100 A, 1000 V, 4 POLE, NON-FUSIBLE, 3R Square D Solar Safety..
$805.68
Ex Tax: $805.68
DISCONNECT, SQUARE D, REHU393IP, 100 A,
DISCONNECT, SQUARE D, REHU393IP, 100 A, 1000 V, 3 POLE, NON-FUSIBLE, 3R Square D Solar Safety..
$753.75
Ex Tax: $753.75
DISCONNECT, SQUARE D, REHU394IP, 200 A,
DISCONNECT, SQUARE D, REHU394IP, 200 A, 1000 V, 3 POLE, NON-FUSIBLE, 3R Square D Solar Safety..
$1,005.00
Ex Tax: $1,005.00
DISCONNECT, SQUARE D, REHU493IP, 100 A,
DISCONNECT, SQUARE D, REHU493IP, 100 A, 1000 V, 4 POLE, NON-FUSIBLE, 3R Square D Solar Safety..
$1,122.25
Ex Tax: $1,122.25
DISCONNECT, SQUARE D, REHU494IP, 200 A,
DISCONNECT, SQUARE D, REHU494IP, 200 A, 1000 V, 4 POLE, NON-FUSIBLE, 3R Square D Solar Safety..
$1,772.15
Ex Tax: $1,772.15
BUSBAR, SQUARE D, GTK03, GROUND BUS KIT
Description This ground kit is used for Square D heavy duty safety switches, 3 terminal..
$7.96
Ex Tax: $7.96
BUSBAR, SQUARE D, GTK0610, GROUND BUS KI
Equipment Switch Ground Kit, NEMA Type 1, 3R, Aluminum, Heavy/General Duty Switch, Series F, 60/1..
$15.08
Ex Tax: $15.08
BUSBAR, SQUARE D, PK15GTA, GROUND BUS KI
Schneider Electric/Square D QO and Homeline Ground bar kit is used on QO load center. It features..
$12.56
Ex Tax: $12.56
BUSBAR, SQUARE D, PK18GTA, GROUND BUS KI
Schneider Electric/Square D Homeline™ Ground bar assembly has a conductor made of copper/aluminum..
$9.93
Ex Tax: $9.93
BUSBAR, SQUARE D, PK3GTA1, GROUND BUS KI
Schneider Electric/Square D Load center grounding bar assembly has aluminum/copper construction t..
$9.84
Ex Tax: $9.84
BUSBAR, SQUARE D, PK4GTA, GROUND BUS KIT
Schneider Electric/Square D Load center grounding bar assembly has aluminum/copper construction t..
$10.05
Ex Tax: $10.05
BUSBAR, SQUARE D, PK9GTA, GROUND BUS KIT
Schneider Electric/Square D QO and Homeline load center grounding bar assembly has copper/alumini..
$11.73
Ex Tax: $11.73
BUSBAR, SQUARE D, PKOGTA2, GROUND BUS KI
Schneider Electric / Square D Equipment ground lug kit accommodates aluminum /copper wires of siz..
$48.58
Ex Tax: $48.58
BUSBAR, SQUARE D, PKOGTA7, GROUND BUS KI
Safety Switch Equipment Ground Kit Used On - Heavy Duty Safety Switch Commodity Code – 3100 Switc..
$132.41
Ex Tax: $132.41
BUSBAR, SQUARE D, PKOGTA8, GROUND BUS KI
SQUARE D PKOGTA8 : HDSS EQUIP GRND ASSEMBLY 240V+600V 1200A Technical Description: EQUIPMENT GROU..
$135.76
Ex Tax: $135.76
BUSBAR, SQUARE D, SN03, NEUTRAL BUS KIT
Neutral Kit, Standard; Switch Voltage Rating 240/600 V; Switch Current Rating 30/60 Ampere; Wire ..
$56.00
Ex Tax: $56.00
BUSBAR, SQUARE D, SN0610, NEUTRAL BUS KI
Specifications : • Product Type : Neutral Assembly • Voltage Rating : 240/600 V • Amperage ..
$73.70
Ex Tax: $73.70
BUSBAR, SQUARE D, SN20A, NEUTRAL BUS KIT
Schneider Electric / Square D Neutral assembly ground kit is compatible with safety switch. It ha..
$138.19
Ex Tax: $138.19
CONDUIT FIITING, SQD, 1.5 IN THREADED, B
Rainproof Switch Bolt On Hub, NEMA Type 3R Enclosure, Conduit Size 1.5 Inch    ..
$15.33
Ex Tax: $15.33
CONDUIT FIITING, SQD, 2 IN THREADED, B20
Rainproof Switch Bolt On Hub, NEMA Type 3R Enclosure, Conduit Size 2 Inch     ..
$28.48
Ex Tax: $28.48
CONDUIT FITTING, 1-1/4IN DIA,  STEEL, B
Rainproof Switch Bolt On Hub, NEMA Type 3R Enclosure, Conduit Size 1.25 Inch    ..
$15.33
Ex Tax: $15.33
CONDUIT FITTING, 1IN DIA,  STEEL, B STYL
Rainproof Switch Bolt On Hub, NEMA Type 3R Enclosure, Conduit Size 1 Inch     ..
$15.33
Ex Tax: $15.33
CONDUIT FITTING, 3/4IN DIA, STEEL, B STY
Rainproof Switch Bolt On Hub, NEMA Type 3R Enclosure, Conduit Size 3/4 Inch    ..
$24.91
Ex Tax: $24.91
DISCONNECT, CUTLER-HAMMER, DG222URB, 60A
SAFETY SWITCH, DPST, 60A/240V, N3R NON-FUSIBLE, NEMA 3R ENCLOSED GENERAL DUTY   &nbs..
$148.18
Ex Tax: $148.18
DISCONNECT, SQUARE D, D221NRB, 30A, 240V
Square D, AC Disconnect, NEMA 3R, 30A, 240V, 2-Pole Fused, Neutral Bar     ..
$69.76
Ex Tax: $69.76
DISCONNECT, SQUARE D, D222NRB, 60A, 240V
Square D D222NRB Safety Switch 60A 240VAC, Fusible, General Duty, 2-Pole     ..
$126.05
Ex Tax: $126.05
DISCONNECT, SQUARE D, D223NRB, 100A, 240
Square D, AC Disconnect, NEMA 3R, 100A, 240V, 2-Pole Fused, Neutral Bar UL listed CSA cer..
$188.44
Ex Tax: $188.44
DISCONNECT, SQUARE D, D224NRB, 200A, 240
Schneider Electric / Square D D224NRB General Duty Fusible Safety Switch; 200 Amp, 240 VAC, 2 Pol..
$464.31
Ex Tax: $464.31
DISCONNECT, SQUARE D, D321NRB, 30A, 240V
Square D, AC Disconnect, NEMA 3R, 30A, 240V, 3-Pole Fused, Neutral Bar, D321NRB UL listed ..
$113.28
Ex Tax: $113.28
DISCONNECT, SQUARE D, D322NRB, 60A, 240V
Square D, AC Disconnect, NEMA 3R, 60A, 240V, 3-Pole Fused, Neutral Bar, D322NRB UL listed ..
$170.85
Ex Tax: $170.85
DISCONNECT, SQUARE D, D323NRB, 100A, 240
D323NRB Safety Switch , 100A, Fusible, Cartridge (Class H, K or R), 3-Pole     ..
$316.58
Ex Tax: $316.58
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