Match the delivered machine.
Not a remembered voltage.
Build an electrical scope from the exact nameplate, OEM documentation, options, accessories and site—not a generic model assumption.
The power path starts at the source and ends at every accessory.
A nominal building voltage does not resolve available capacity, phase, frequency, fault current, conductor and overcurrent sizing, disconnecting means, grounding, transformers, power quality or accessory loads.
Facts to establish
- Machine and accessory nameplates for voltage, phase, frequency and ratings
- OEM input, overcurrent, disconnect, grounding and transformer guidance
- Available service, panel and feeder capacity under actual demand
- Facility voltage, voltage variation, phase balance and power-quality concerns
- Robots, chillers, mist collectors, conveyors, compressors and peripheral loads
- Applicable electrical code, permits, inspection and qualified-person scope
Documents and deliverables
- Nameplate and OEM electrical documentation
- One-line diagram and load calculation
- Panel, feeder, disconnect and transformer schedule
- Short-circuit or coordination study if project conditions require it
- Permit, inspection and testing record
- Final settings, labels and as-built changes
Ask before the decision becomes expensive.
A useful answer identifies a person, document, number, date, scope or acceptance test. Replace assumptions with evidence.
What arrives on the truck?
Confirm the machine's actual nameplate and all separately powered accessories before ordering electrical equipment.
Can the facility carry the new demand?
Evaluate the upstream service and realistic simultaneous loads, not only an empty breaker position.
Does conversion solve compatibility?
A transformer changes voltage; it does not automatically resolve phase, frequency, capacity, grounding or power quality.
Who owns final connection and testing?
Assign licensed work, OEM checks, energization authority and acceptance before delivery.
Pause when the scope is vague.
- Electrical design from an online specification table without the delivered nameplate
- A breaker space treated as proof of facility capacity
- Transformer selection based only on volts
- Accessories omitted from the load and disconnect plan
- Machine energized before grounding, protection and inspection are complete
What a controlled file contains.
- Nameplate photographs
- Approved electrical design
- Equipment and conductor schedule
- Inspection and energization authorization
- Voltage and startup test results
Use the source that controls the question.
These links provide a starting point. The exact machine, agreement, site, jurisdiction and qualified professionals control the final decision.
Connect this question to the whole machine.
Machine ownership is a chain. Use the next relevant guide instead of treating any one checkpoint as the complete answer.
Machine electrical reference
Use the MBB three-phase, kW, amp and conversion library.
Open the guide →ELECTRICIANSFind industrial electricians
Research providers by state and verify licensing and scope.
Open the guide →UTILITIESPlan air, coolant and extraction
Carry the same exact-configuration discipline into every utility.
Open the guide →Direct answers, with the boundary intact.
Machine Blue Book organizes research. It does not replace engineering, legal, tax, insurance, safety, appraisal or trade advice.
Is a voltage match enough?
No. Phase, frequency, load, protection, disconnecting means, grounding, fault current and power quality also matter.
Can MBB size my feeder or transformer?
No. MBB provides educational references; a qualified electrical professional must design and verify the installation.
Do accessories count as separate loads?
Often yes. Confirm every separately powered peripheral and whether it is supplied from the machine or facility.
Why verify the physical nameplate?
Machines and options vary. The delivered equipment's approved documentation and nameplate are stronger evidence than a generic listing.
Machine Buying Guide
Carry this evidence into the rest of the decision—from machine identity through handover and final economics.