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1200A Industrial Control Panel

UL 508A listed enclosed industrial control panel, suitable for use as service equipment. 480Y/277 VAC, 65 kA SCCR, with a dedicated VFD branch and Class T/J fused outputs for pump and fan loads.

Part number BS_UL_1200A_M1

Rev. 1.0

Dry Cooler & Pump Control
CDU / Mechanical Rooms

Panel Type: Enclosed Industrial Control Panel — Service Equipment
Listing: UL 508A Listed — Suitable for Use as Service Equipment
UL File: E529270 (BITSINK LLC)
Supply Voltage: 480Y/277 VAC, 3-phase, 4-wire + ground, solidly grounded wye, 60 Hz

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UL 508A listed, service-equipment rated

Suitable for use as service equipment under UL File E529270.

Integrated VFD branch

20 HP AutomationDirect DURAPULSE sensorless vector VFD pre-wired into the panel.

Arc Reduction Maintenance System

Main breaker ARMS function lowers incident energy during live maintenance.

Active thermal management

Filtered forced-air cooling with adjustable thermostat, 40°C activation setpoint.

Dual-voltage control transformer

3,200 VA control transformer supports up to 5 UL 489 branch breakers.

Full documentation package

BOM, single-line, layout drawings, GFP test instructions, and FAT report included.

General Specifications

Panel Type	Enclosed Industrial Control Panel — Service Equipment
Listing	UL 508A Listed — Suitable for Use as Service Equipment
UL File	E529270 (BITSINK LLC)
Supply Voltage	480Y/277 VAC, 3-phase, 4-wire + ground, solidly grounded wye, 60 Hz
Service Rating	1,200 A
Max Combined Continuous Load	960 A
SCCR	65 kA RMS symmetrical @ 480 VAC
Enclosure Type	UL / NEMA Type 1 — indoor, general purpose

Service Disconnect & Main OCPD

Device	Noark M6N1200E3, 3-pole MCCB
Frame / Interrupting Rating	1,200 A frame, 600 VAC max, 65 kA @ 480 VAC
Trip Unit	LSIG (long-time/short-time/instantaneous/ground fault)
Arc Reduction	Integral Arc Reduction Maintenance System (ARMS)

Bus, Neutral & Grounding

Main Power Bus	1/4 in × 5 in silver-plated copper, 3-phase
Neutral Disconnect Link	1,250 A, installed for insulation testing
Main Bonding Jumper	1/4 in × 5 in silver-plated copper, dedicated per NEC 250.28
Equipment Ground Bus	1/4 in × 2 in copper, rated for 100 kA short-circuit withstand

480 VAC Branch Circuits

Branch Devices	4 × Noark M2H250T3 (250A MCCB); 1 × 80A Class T fuse block (VFD branch); 1 × DURAPULSE GS23-4020 20HP VFD; 1 × 100A Class J fused output
Combined Continuous Load	Limited to 950 A

120 VAC Control Power

Control Transformer	3,200 VA, single-phase, 480V primary, 115/230V dual-voltage
Secondary Protection	15A Class CC fused; up to 5 UL 489 single-phase branch breakers

Active Thermal Management

System Type	Active forced-air, filtered intake/exhaust
Cooling Fans	(4) × 39 CFM, 120 VAC, axial
Control	Adjustable thermostat, 0–60°C range, 40°C activation setpoint

Standards & Markings

Panel Standard	UL 508A — Industrial Control Panels, Sections 73–79
Field Marking	Available fault current label per NEC 110.24; arc-flash label per NFPA 70E
Documentation	BOM, single-line, layout drawings, GFP test instructions, FAT report