A 347V or 480V tower crane light should be specified only when the exact luminaire model, driver, frequency, wiring arrangement and product certification cover the project supply.
A supplier should not describe a floodlight as “480V compatible” merely because another product family uses a high-voltage driver. Likewise, a UL or ETL mark on another model does not certify the proposed CRANESTAR configuration.
REITA’s CRANESTAR series includes 480W, 720W, 960W and 1200W construction work floodlights. A North American 347–480V configuration must be confirmed separately through model-specific electrical and certification documentation.
North American Readiness Gate
| Requirement | Evidence Required Before Publication or Sale |
|---|---|
| 347V operation | Model-specific datasheet, nameplate and wiring diagram |
| 480V operation | Model-specific datasheet, nameplate and wiring diagram |
| Frequency | Confirmed 60Hz or appropriate rated range |
| Certification | NRTL listing for the actual model and applicable standard |
| Canada | Certification mark and scope covering Canadian requirements |
| Driver | Exact manufacturer, model and voltage rating |
| Inrush | Test or manufacturer data |
| Surge | Test level and test method |
| Wiring | Conductors, phase arrangement, ground and terminal details |
| Photometry | IES file for the exact model and optics |
| Mounting | Weight, bracket, locking and secondary retention |
| Environmental | IP, IK, operating temperature and corrosion evidence |
| Support | Warranty, spare parts and North American claim process |
Until these items are real, the page should remain unpublished.
347V and 480V Are Not Interchangeable Labels
A North American RFQ should state:
- Nominal site voltage;
- Measured voltage range;
- Frequency;
- Phase arrangement;
- Neutral availability;
- Grounding method;
- Branch-circuit arrangement;
- Breaker;
- Contactor;
- Cable length;
- Connector or disconnect;
- Number of fixtures per circuit.
The fixture must be rated for the actual voltage applied to its input terminals.
Do not assume:
- A 277V driver can operate at 347V;
- A 347V driver can operate at 480V;
- A “high-voltage” driver covers every North American system;
- A 50Hz model automatically has complete 60Hz documentation;
- A single-phase input can be connected in any arbitrary three-phase arrangement.
The approved wiring diagram must control the installation.
What Does NRTL Certification Mean?
OSHA’s Nationally Recognized Testing Laboratory program recognizes private organizations that test and certify products within defined scopes. Each NRTL uses its own registered mark, and certification applies to the evaluated product and relevant safety standard.
Intertek is one recognized NRTL, and the ETL Listed Mark is used to show that a product has been tested and certified to applicable North American safety requirements. ETL marks can cover the United States and Canada when the certification scope and mark indicate that coverage.
The buyer should verify:
- Manufacturer;
- Model number;
- Certification mark;
- Listing directory entry;
- Applicable standard;
- Voltage;
- Wattage;
- Wet-location or outdoor rating;
- US-only or US-and-Canada scope;
- Factory follow-up status;
- Any installation limitations.
“NRTL components inside” is not the same as a listed complete luminaire.
UL vs ETL
A contractor may use “UL tower crane light” as a general search phrase, but OSHA does not define approval as “UL only.” The relevant question is whether the electrical equipment has an acceptable certification by an OSHA-recognized NRTL for the applicable product standard and intended use.
Therefore, a future REITA page should not claim:
- UL Listed;
- ETL Listed;
- cUL certified;
- cETL certified;
- approved for Canada;
unless the exact CRANESTAR model appears under the corresponding certification scope.
North American Construction Illumination
OSHA 1926.56 requires construction areas, ramps, runways, corridors, offices, shops and storage areas to meet the minimum illumination intensities in Table D-3 while work is in progress. The table provides minimums by area or operation, but a tower crane project may require higher task-specific levels for lifting, inspection, material identification or detailed work.
A lighting proposal should evaluate:
- General construction floor;
- Hook path;
- Load landing area;
- Storage zone;
- Temporary roadway;
- Pedestrian route;
- Crane platform;
- Site perimeter.
The DIALux or AGi32-style model should report average lux or foot-candles, minimum values, uniformity, fixture positions and aiming.
Metal-Halide Retrofit Matrix
| Existing System | What Must Be Recorded | LED Selection Approach |
|---|---|---|
| 1000W metal halide | Lamp, ballast, reflector, age and mounting height | Compare actual photometry and required illumination |
| 1500W metal halide | Total system power and beam pattern | Evaluate one or more controlled LED fixtures |
| 2000W metal halide | Existing throw, reflector and ground results | Use project calculation, not a fixed wattage ratio |
| Mixed old fixtures | Quantity, condition and circuit load | Redesign each working zone |
| Unknown system | Photographs, nameplate and field measurements | Establish baseline before specifying LED |
No universal statement such as “480W LED always replaces 1000W metal halide” should be used.
The replacement decision should account for:
- Ballast losses;
- Lamp depreciation;
- Reflector condition;
- Existing beam;
- Crane height;
- Horizontal target distance;
- Required illumination;
- Number of fixtures;
- Cold-start and restart requirements;
- Maintenance access.
Use the Metal Halide to LED Tower Crane Light Replacement Guide for the full retrofit workflow.
Surge, Inrush and Switching
High-power LED drivers can draw a short-duration inrush current when energized.
The electrical engineer should verify:
- Peak inrush;
- Duration;
- Number of fixtures per breaker;
- Breaker curve;
- Contactor rating;
- Simultaneous switching;
- Generator supply;
- Voltage drop;
- Surge protection;
- Grounding and bonding.
A fixture may have a low normal operating current but still create switching problems when several units start together.
The quotation should include actual model-specific values rather than generic driver marketing information.
Wiring and Disconnect Requirements
The project should define:
- Cable type;
- Conductor size;
- Grounding conductor;
- Connector;
- Local disconnect;
- Junction box;
- Strain relief;
- Vertical cable support;
- Wet-location suitability;
- Flexible sections where movement occurs;
- Lockout and servicing procedure.
The complete crane installation must be reviewed by the electrical contractor and authority having jurisdiction.
Mechanical Requirements
North American contractors should request:
- Fixture weight;
- Projected area;
- Bracket drawing;
- Mounting-hole dimensions;
- Fastener specification;
- Tilt range;
- Locking method;
- Secondary safety cable;
- Vibration evidence;
- Wind-load review;
- Inspection procedure.
NRTL listing of the luminaire does not automatically approve a custom crane bracket or the crane structure.
Documents Required in the RFQ
- Model-specific datasheet;
- 347V or 480V nameplate;
- 60Hz confirmation;
- Wiring diagram;
- Driver model;
- Operating current;
- Inrush data;
- Surge information;
- IES file;
- Dimensions;
- Weight;
- Bracket drawing;
- IP and IK reports;
- NRTL certificate or listing;
- US/Canada certification scope;
- Installation manual;
- Warranty;
- Spare-parts plan;
- Packaging and freight information.
North American Project Input Form
Project country: [United States/Canada]
State or province: [location]
Crane model: [model]
Crane height: [height]
Jib length: [length]
Mounting position: [position]
Target area: [dimensions]
Required illumination: [foot-candles/lux]
Site voltage: [347V/480V/other]
Frequency: [60Hz]
Phase and neutral arrangement: [details]
Cable length: [length]
Existing lamp: [type and wattage]
Required certification: [US/Canada/both]
Required delivery date: [date]
Frequently Asked Questions
Does REITA currently claim that every CRANESTAR model supports 347–480V?
No. High-voltage availability must be confirmed for the exact model in the datasheet and quotation.
Is ETL accepted in the United States?
ETL is issued by Intertek, an OSHA-recognized NRTL. Acceptance depends on the applicable certification, model and listing scope.
Does a US ETL mark automatically cover Canada?
No. The certification mark and scope must indicate Canadian coverage where required.
Can a 720W LED replace a 1000W metal-halide crane light?
It may be possible in a specific project, but the decision must use photometry, mounting height, existing reflector condition and target illumination.
Is 480V always three phase at the light?
The site distribution may be three phase, but the individual luminaire input and connection must follow its approved wiring diagram.
Conclusion
A North American tower crane floodlight page should only be published when REITA has:
- A real 347V or 480V model;
- 60Hz electrical documentation;
- Wiring, surge and inrush data;
- Verified photometry;
- Approved mechanical information;
- A valid NRTL strategy;
- US and Canadian support definitions.
Until then, direct buyers to the global CRANESTAR Tower Crane LED Floodlight Series and collect project requirements through the REITA contact page.