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NSI ISR-250

Part #NSI ISR-250 IN-LINE SPLICE #6-#250AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 6 AWG to 250 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-250

150 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$39.26/EA

Regular Price: $58.67/EA, you save $19.41 (33%)

QTY

U/M

EA BX /4

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NSI ISR-600

Part #NSI ISR-600 IN-LINE SPLICE #6-#600AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 6 AWG to 600 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-600

2 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$76.06/EA

Regular Price: $117.31/EA, you save $41.25 (35%)

QTY

U/M

EA BX /2

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NSI ISR-500

Part #NSI ISR-500 IN-LINE SPLICE #4-#500AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 4 AWG to 500 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-500

44 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$62.38/EA

Regular Price: $96.18/EA, you save $33.80 (35%)

QTY

U/M

EA BX /2

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NSI ISR-1/0

Part #NSI ISR-1/0 IN-LINE SPLICE #14-#1/0AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 14 to 1/0 AWG Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 3/16 in Hex, -4

MFG #ISR-1/0

189 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$23.36/EA

Regular Price: $38.90/EA, you save $15.54 (40%)

QTY

U/M

EA BX /4

ADD TO CARTADD TO LIST

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NSI ISR-250

Part #NSI ISR-250 IN-LINE SPLICE #6-#250AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 6 AWG to 250 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-250

150 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$39.26/EA

Regular Price: $58.67/EA, you save $19.41 (33%)

QTY

U/M

EA BX /4

ADD TO CARTADD TO LIST

Compare

NSI ISR-600

Part #NSI ISR-600 IN-LINE SPLICE #6-#600AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 6 AWG to 600 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-600

2 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$76.06/EA

Regular Price: $117.31/EA, you save $41.25 (35%)

QTY

U/M

EA BX /2

ADD TO CARTADD TO LIST

Compare

NSI ISR-500

Part #NSI ISR-500 IN-LINE SPLICE #4-#500AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 4 AWG to 500 kcmil Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 5/16 in Hex

MFG #ISR-500

44 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$62.38/EA

Regular Price: $96.18/EA, you save $33.80 (35%)

QTY

U/M

EA BX /2

ADD TO CARTADD TO LIST

Compare

NSI ISR-1/0

Part #NSI ISR-1/0 IN-LINE SPLICE #14-#1/0AWG INSULATED DUAL RATED NSI Polarisâ„¢ In-Line Splicer/Reducer, Series: ISR, Aluminum/Copper Conductor, 14 to 1/0 AWG Conductor, 600 VAC, 1 Pole, 2 Conductor, Class B and C Wire Type, 3/16 in Hex, -4

MFG #ISR-1/0

189 in Stock. More available 02/24/2026

VIEW BRANCH INVENTORY

$23.36/EA

Regular Price: $38.90/EA, you save $15.54 (40%)

QTY

U/M

EA BX /4

ADD TO CARTADD TO LIST

Results Per Page

12243648