Convertible Mains — 3-Phase, 4-Wire 480Y/277V

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SIEM P1E30MC400CT

Part #SIEM P1E30MC400CT 400AMP 277/480VAC 3PHASE 30CIRCUIT INTERIOR ONLY PANELBOARD COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 400 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel Housing Ma

MFG #P1E30MC400CT

1 in Stock. More available 02/25/2026

VIEW BRANCH INVENTORY

$953.61/EA

Regular Price: $3855.00/EA, you save $2,901.39 (75%)

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SIEM P1E30MC250CT

Part #SIEM P1E30MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (30) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E30MC250CT

3 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$575.13/EA

Regular Price: $2325.00/EA, you save $1,749.87 (75%)

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SIEM P1E42MC400CT

Part #SIEM P1E42MC400CT 400AMP 277/480VAC 3PHASE 4WIRE (42) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 400 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E42MC400CT

1 in Stock. More available 02/09/2026 and 02/23/2026

VIEW BRANCH INVENTORY

$1100.80/EA

Regular Price: $4450.00/EA, you save $3,349.20 (75%)

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SIEM P1E42MC250CT

Part #SIEM P1E42MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (42) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E42MC250CT

4 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$686.45/EA

Regular Price: $2775.00/EA, you save $2,088.55 (75%)

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SIEM P1E18MC250CT

Part #SIEM P1E18MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (18) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E18MC250CT

3 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$465.06/EA

Regular Price: $1880.00/EA, you save $1,414.94 (75%)

QTY

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SIEM P1E30MC400CT

Part #SIEM P1E30MC400CT 400AMP 277/480VAC 3PHASE 30CIRCUIT INTERIOR ONLY PANELBOARD COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 400 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel Housing Ma

MFG #P1E30MC400CT

1 in Stock. More available 02/25/2026

VIEW BRANCH INVENTORY

$953.61/EA

Regular Price: $3855.00/EA, you save $2,901.39 (75%)

QTY

ADD TO CARTADD TO LIST

Compare

SIEM P1E30MC250CT

Part #SIEM P1E30MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (30) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E30MC250CT

3 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$575.13/EA

Regular Price: $2325.00/EA, you save $1,749.87 (75%)

QTY

ADD TO CARTADD TO LIST

Compare

SIEM P1E42MC400CT

Part #SIEM P1E42MC400CT 400AMP 277/480VAC 3PHASE 4WIRE (42) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 400 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E42MC400CT

1 in Stock. More available 02/09/2026 and 02/23/2026

VIEW BRANCH INVENTORY

$1100.80/EA

Regular Price: $4450.00/EA, you save $3,349.20 (75%)

QTY

ADD TO CARTADD TO LIST

Compare

SIEM P1E42MC250CT

Part #SIEM P1E42MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (42) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E42MC250CT

4 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$686.45/EA

Regular Price: $2775.00/EA, you save $2,088.55 (75%)

QTY

ADD TO CARTADD TO LIST

Compare

SIEM P1E18MC250CT

Part #SIEM P1E18MC250CT 250AMP 277/480VAC 3PHASE 4WIRE (18) CIRCUIT PANELBOARD INTERIOR ONLY COPPER BUS Siemens Panelboard Interior, Type P1, 480/277 VAC, 250 A, BQD Breaker, 3-Phase, 4-Wire Wiring Configuration, Copper Bus, NEMA 1/3R/12 Enclosure, Steel H

MFG #P1E18MC250CT

3 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$465.06/EA

Regular Price: $1880.00/EA, you save $1,414.94 (75%)

QTY

ADD TO CARTADD TO LIST

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12243648