KKELLWOODLIGHTING Tel 01387 255 816Edit seriesOffice

Hazardous Area · Zone 1 and Zone 21

Specialist light for grain stores and mills - polycarbonate diffuser and hazardous-area approved

Explosion Proof Grain Store Lighting

  • 30W to 300W
  • 3,600lm to 33,000lm
  • 118lm/W to 127lm/W
  • IP66
  • 5 Years, 3 Years (Emergency) warranty

Order code STA-120-757-120PC-V4-UB-GR-I1

120W nominal. 330 × 197 mm, 11.0 kg. CE, RoHS, ATEX, IECEx.

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Stanford Series

BUILD THIS FITTING

Order code STA-120-757-120PC-V4-UB-GR-I1

120W nominal. 330 × 197 mm, 11.0 kg. CE, RoHS, ATEX, IECEx.

CIBSE target · 200 lx

Lux does not change the order code.

My schedule

Request a lighting design

Modification

  • CE
  • 127 lm/W
  • 5 years
  • IK08
  • IP66
  • Emergency

Kellwood's Stanford Series Grain Store variant is a purpose-built lighting solution for Zone 1 and Zone 2 hazardous areas, ideal for grain stores, food production, and other dust-prone environments where glass-free, explosion-proof lighting is essential.

With its robust polycarbonate diffuser and aluminium enclosure, the grain store variant removes the risk of glass contamination while delivering reliable performance in demanding conditions. Available in Standard and 3hr Maintained Emergency versions, it supports safety during both routine operations and unexpected power loss.

Offering a range of lumen outputs, optics, and mounting options, the Stanford Grain Store variant adapts easily to both targeted tasks and wide-area lighting. Wire-in-wire-out configurations and integrated emergency gear ensure a flexible, cost-effective solution for hazardous sites requiring dependable, compliant illumination.

Request a quote or a lighting design. Kellwood prices the fitting. The order code goes with the request.

Order code STA-120-757-120PC-V4-UB-GR-I1

Performance summary
Series codeSTA
Nominal power30W to 300W
Efficacy118lm/W to 127lm/W @ CRI>70
Lumen output3,600lm to 33,000lm
Lumen maintenanceL70B50 ≥50,000 hours
CertificationCE, RoHS, ATEX, IECEx
Warranty5 Years, 3 Years (Emergency)

No lumen row is entered yet. The order code still prints; the lumen stays blank.

DOWNLOADS

Questions for Adam list what the sheet and the measured files do not settle yet.

LIGHT DISTRIBUTION OPTIONS


60PC

90°60°30°0°30°60°90°
Polar

60° circular

Symmetric

Clear

Drawn from the beam setting, not measured

80PC

90°60°30°0°30°60°90°
Polar

80° circular

Symmetric

Clear

Drawn from the beam setting, not measured

120PC

90°60°30°0°30°60°90°
Polar

120° circular

Symmetric

Clear

Drawn from the beam setting, not measured

Polar: solid green C0–C180, dashed blue C90–C270, dotted amber the plane through the brightest direction when it lies between them; rings at 25% steps of the peak. Isolux: the footprint on the floor with the fitting aimed straight down, contours at 50%, 25% and 10% of the brightest point, grid in mounting heights (H). Both are drawn from the first measured file for that optic.

DESIGN FEATURES


designed for Purpose

The Stanford Series Grain Store variant has a selection of features that are of particular benefit for grain store, flour mills, and general food production applications: Glass-Free Construction: Built without glass components, reducing the risk of shattering and contamination in food-sensitive environments like grain storage areas. Ingress Protection (IP) Rating: Its high, IP66 rating, ensures dust-tight performance, essential in grain storage areas and mills. Corrosion-Resistant Housing: Constructed from robust, corrosion-resistant materials such as stainless steel or coated aluminium. ATEX/IECEx Certified: Certified for use in hazardous areas (Zone 2/22), making it compliant with safety regulations for explosive dust atmospheres typically present in grain handling facilities. Impact-Resistant Diffuser: Utilises polycarbonate, shatter-resistant materials for the diffuser, ensuring durability and safety during operation or maintenance. Optimised Light Distribution: Designed to provide wide and even light coverage, reducing shadows and improving visibility across large open areas like grain bins or silos. Integrated Emergency: Optional Remote-test 3hr emergency provides back-up illumination in the event of a power failure, allowing operatives to safely exit the area.

designed for Purpose

TYPICAL APPLICATIONS


CASE STUDIES


SPECIFICATIONS


Light source
Chip Brand, Model, & SizeLumiled Luxeon 5050
Light EmissionDirect
CCT5700K, (3000K, 4000K, 5000K optional)
CRI≥70, (≥80 optional)
DiffusersClear
Symmetric Light Distribution60°, 80°, 120°
Electrical
System Operating PowerSTA-30: 30W; STA-45: 45W; STA-60: 60W; STA-80: 80W; STA-100: 100W; STA-120: 120W; STA-150: 150W; STA-200: 200W; STA-240: 240W; STA-300: 300W
System Power Factor>0.9
Input Voltage100-277VAC, 220-240VAC (Emergency)
Input Frequency50-60Hz
Power Factor>0.98
THD<10%
Insulation ClassI
Surge Protection/Fusing5kV
Environmental
IP RatingIP66
IK RatingIK08 (IK10 front face with the wire guard)
Ambient Usage Tolerance-40°C to 55°C, -20°C to 55°C (Emergency)
Ambient Storage Tolerance-20°C to 55°C
Ambient Humidity Tolerance0% to 90% RH
Physical/Mechanical
Product Dimensions: ø x H (mm)STA-30 to STA-80: 275 x 195; STA-100 to STA-150: 330 x 197; STA-200 to STA-300: 415 x 197
Wire-In-Only Electrical ConnectionRecommended 1mm² to 4mm²
Wire-In-Wire-Out Electrical ConnectionRecommended 1mm² to 4mm²
Wire-In-Wire-Out InstallationYes (up to 4 separate cable gland entries for 30W-240W)
Inlet ThreadM20 (M20x1.5), M25 (M25x1.5), NPT3/4”
Gland TypeBrass with Nickel Plated Non-Armoured (Armoured optional)
Suitable Cable Size (ø)M20 = 6.1-13.2mm, M25 = 9.5-15.9mm, NPT3/4” = 12.5-20.5mm
Fixture WeightSTA-30 to STA-80: 8.5kg; STA-100 to STA-150: 11.0kg; STA-200 to STA-300: 14.0kg (excludes bracketry)
Fixture Primary Material(s)ADC12 Aluminium Alloy (1.5-3.5% Copper) and 316 Stainless Steel Fixings
Fixture FinishEpoxy Powder Coated
Lens(es) MaterialsUV Stabilised Polycarbonate
Options/Accessories
Mounting StylesUniversal Bracket, Slip Fit, In-Line Pipe Connector, Eye Bolt
Miscellaneous AccessoriesWire Guard, Integrated Emergency (Remote Test)
Available Product ColoursGrey (RAL7040)
Emergency Options Summary
Emergency Variant CodeE3R1
Test MethodRemote-Test
StyleIntegrated
Output Power in Emergency Mode10W
Emergency Lumen Output @ 6000K CCT1,150 to 1,250lm
Emergency Correction FactorSTA-30: 0.333; STA-45: 0.222; STA-60: 0.166; STA-80: 0.125; STA-100: 0.100; STA-120: 0.083; STA-150: 0.066; STA-200: 0.050; STA-240: 0.041; STA-300: N/A
Battery BrandDison
Battery ModelHRH26/51(C) D-MH-20047
Battery Chemical CompositionNi-MH
Battery Capacity4000mAh
Output Power Duration3 hours
Time to Charge24 hours

Brackets and accessories (ordered separately) All accessories

Each body (size and weight exclude bracketry)
3030W nominal. 275 × 195 mm, 8.5 kg. CE, RoHS, ATEX, IECEx.
4545W nominal. 275 × 195 mm, 8.5 kg. CE, RoHS, ATEX, IECEx.
6060W nominal. 275 × 195 mm, 8.5 kg. CE, RoHS, ATEX, IECEx.
8080W nominal. 275 × 195 mm, 8.5 kg. CE, RoHS, ATEX, IECEx.
100100W nominal. 330 × 197 mm, 11.0 kg. CE, RoHS, ATEX, IECEx.
120120W nominal. 330 × 197 mm, 11.0 kg. CE, RoHS, ATEX, IECEx.
150150W nominal. 330 × 197 mm, 11.0 kg. CE, RoHS, ATEX, IECEx.
200200W nominal. 415 × 197 mm, 14.0 kg. CE, RoHS, ATEX, IECEx.
240240W nominal. 415 × 197 mm, 14.0 kg. CE, RoHS, ATEX, IECEx.
300300W nominal. 415 × 197 mm, 14.0 kg. CE, RoHS, ATEX, IECEx.

Footnote 1: emergency is only available with the 120° optic.

Footnote 2: the emergency version E3R1 is only available with 220-240 VAC (V11) input and for 30W to 240W.

Details are for the standard non-dimming driver. Fixture weights exclude bracketry.

IK rating format is housing / front face; IK10 when fitted with the wire guard.

Wire-in-wire-out products are supplied with one non-armoured ATEX certified gland and one ATEX certified blanking plug. Armoured cable glands are an option; contact Kellwood.

The stated cable size applies to the standard gland; armoured cable may vary.

Hazardous area certified product modifications are typically limited to bracketry, to keep certification. Products are supplied with OEM nameplates, codes and documentation corresponding to the certification.

If more than one modification is required, separate each modification with a hyphen at the end of the product code.

Modifications which affect light output have separate photometric files identified with +(modification).

Alternative drivers may be available. Contact the office for further details.

If the product is customised, the code is altered.

Contact the office for further information on driver parameters.

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Our lights are used by

I am delighted to have used Kellwood...
P. Nisbet, Wabtec Corporation
a project that was well planned and promptly accomplished
E. McHugh, Loganair
Where others let us down, Kellwood did not
W. Coley, Barking Abbey School
...my client is over the moon with the end results
A. Fraser, MacLean Electrical
I'd certainly recommend them
V. Richardson, Stolle Europe
I'm more than pleased with the guys. I'd recommend them to anyone
G. Gray, Logoplaste