Submersible Light Fittings | IP68 Zone 1 & Zone 21 Hazardous Area LED Lighting
Published 26 Jun 2019
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uploaded by Chris Dodds - Thorne & Derrick Sales/Marketing Manager
Abtech NIMO
The Submersible Underwater LED Light for Hazardous Area LightingÂ
Zone 1 (Gas) & Zone 21 (Dust)
Abtech are leading manufacturers and innovators of Electrical Equipment & Hazardous Area Lighting designed and certified to the latest international (IECEx) and European (ATEX) standards.
Electrical Product Overview from Abtech
- Enclosures manufactured in stainless steel, mild steel, glass reinforced polyester, aluminium and polycarbonate
- Electrical enclosures for high voltage applications – with flexibility, choice of cables, entries and cable terminations
- LED, HID and Fluorescent light fittings and luminaires
- Cable glands manufactured in brass or stainless steel
- Hazardous area adaptors, reducers, plugs and connection accessories
The NIMO is a unique new product launch from Abtech – an LED submersible luminaire with Ingress Protection to IP68 and Hazardous Area Classification to Zone 1.Â
NIMO provides submersible lighting for onshore and offshore hazardous area applications where flammable fuels, fluids or gases present a potential risk of explosion in Zone 1 locations according to the ATEX Directive – the light fittings manufactured from corrosion resistant 316 stainless steel provide safe and reliable submersible lighting with ingress protection to IP68 for subsea, ROV, marine and offshore renewable energy applications.
IP68 & ZOne 1
The performance requirement for IP68 in a Zone 1 hazardous area arises when there is the potential for temporary submersion of the light fitting – this could include lighting applications prone to flooding, tidal shift or unforeseen events. NIMO lights are not designed or specified to be permanently submerged – the submersible light fittings are therefore primarily installed where temporary submersion is required in a potentially explosive gas atmosphere classed as Zone 1 according to the ATEX Directive.
The IP68 Ingress Protection requirement is so that the light fitting will continue to emit light and function when the water level has receded – applications include refuelling jetties, exposed costal location or intermittent flood plain locations.
NIMO was developed to provide hazardous area lighting to FPSO turrets – depending on turret design these areas can become flooded if the FPSO is disconnected and moved away from the sub-sea connections.Light Specification
Light Fitting Type | Zone 1 Submersible LED Luminaire |
Ingress Protection | IP68 to 30m in accordance with EN60529 |
Material | 316 stainless steel with toughened glass diffuser and stainless steel fasteners |
Distribution/Output | ∼1000 lm |
Lamp Types | Pure white LED 5700K |
LED Life | 50,000 hours L70/B10 @ 25°C |
Cable Entry | 1 x M20 threaded entry |
Terminals | Terminal block for up to 6mm² |
Control Gear | HF electronic drive |
Supply | 110 to 250V 50/60Hz ac dc |
Hazardous Area Certification | |
Hazardous Area Classification | Zone 1 Gas and Zone 21 Dust |
Type of Explosion Protection | Ex eb ib qb op is (increased safety, intrinsic safety, quartz filled, optical radiation) |
Apparatus Coding | II 2 GD Ex eb ib qb op is IIB T4 |
Certificate Number | CML 16ATEX3345, IECEx CML 16.0120 |
Pictured: Semi-submersible Offshore Crane Vessel Sleipnir

Credit: Sembcorp Marine
NEWS Sembcorp Marine has completed the semi-submersible crane vessel Sleipnir for Heerema Marine Contractors (HMC) – the vessel can accommodate 400 persons and will be deployed globally for installing and removing jackets, topsides, deepwater foundations, moorings, wind turbines and other offshore structures. It is also the world’s first crane vessel with dual-fuel engines running on Marine Gas Oil (MGO) and Liquefied Natural Gas (LNG). News via May 27, 2019 via Offshore Energy Today
Light Ratings
Product Reference | Lamp Type | Lamp Cap | Power (W) | Temperature Rating | Ambient Temperature | Weight (kg) |
Abtech NIMO LX1NIMO | LED | N/A | 6W | T4 | -20°C to 55°C | 8.9 |

Marine, Naval & Submarine Hazardous Area Lighting
Electrical & Process Instrumentation Equipment
for Explosive Atmospheres
Thorne & Derrick are Specialist Distributors of Hazardous Area & Explosion Proof Equipment with IECEx & ATEX Certifications to the onshore and offshore oil, gas, petrochemicals and process industries.
Key Product Categories: Control Panels | Plugs & Sockets | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace Cables & Systems | Gas Detection & Detectors | Fire Detection & Detectors | Heat Detectors | Electrical Heating & HeatersÂ
➡ Also Process Instrumentation Products: Ashcroft Pressure Gauges | ASCO Valves | Katronic Flow Meters | KROHNE Flow Meters | VEGA Level Sensors | Rotronic Temperature & Humidity Sensors | SIKA Pressure Gauges

Trace Heating | System Design & Supply