MEDC LD15 Ex LED Beacon
Overview
The MEDC LD15 is a high-intensity LED strobe beacon engineered for potentially explosive atmospheres and harsh onshore or offshore environments, part of the Crouse-Hinds series MEDC signalling and alarms range. Housed entirely in UV-stable glass reinforced polyester with a borosilicate glass lens and stainless steel mounting hardware, the LD15 delivers a corrosion-free, low-maintenance visual signal solution with an LED array rated for up to 54,000 hours of service – a step-change in reliability compared with legacy xenon or filament strobe technology still found in many hazardous-area alarm systems.
As an experienced supply partner for MEDC signalling and alarm products within the Cooper Crouse-Hinds series, Seven Star LLC proudly supplies the LD15 Ex LED beacon to oil and gas, petrochemical, and marine facilities across Oman and the wider GCC. Our technical team supports beacon selection by lens colour, mounting configuration, and certification requirement for fire and gas detection, process alarm, and general visual signalling systems throughout the Sultanate of Oman.
Operating Principle
The MEDC LD15 uses a low-current-consumption LED array to generate a high-intensity flash without the power draw or heat generation associated with older strobe or filament beacon technology, delivering effective candela outputs from 41 cd (steady, blue lens) up to 128 cd (60 fpm, clear lens) depending on lens colour and selected flash rate. Five user-selectable functions – steady, 60 fpm, 80 fpm, 120 fpm, and double flash – are configurable both locally at the unit and remotely, allowing a single beacon model to serve multiple alarm priority levels across a facility’s fire and gas or process alarm philosophy simply by changing the flash pattern rather than swapping hardware.
On the MEDC LD15, because the entire LED driver and array are sealed within the flameproof (Ex d) glass reinforced polyester enclosure, the LD15 contains any internal ignition source while still transmitting a bright, clearly visible signal through its borosilicate glass lens. This combination of flameproof electrical containment and high-efficiency optical output makes the LD15 well suited to both indoor process units and exposed offshore platform locations where corrosion resistance and low maintenance are equally critical to safety-instrumented signalling.
Engineering Design of the MEDC LD15
The MEDC LD15 housing is molded from UV-stable glass reinforced polyester with a stainless steel 316 backstrap and stainless steel fixing screws, ensuring a totally corrosion-free product suited to coastal and offshore GCC installations. The unit accepts up to three 1/2 in or three 3/4 in NPT conduit entries, is available in pipe-mount or direct-mount configurations, and can be fitted with an optional cast aluminium or stainless steel wire guard for additional mechanical protection in high-traffic industrial areas.
For the MEDC LD15, operating across a wide voltage range from 12 V DC to 48 V DC or 110 V AC to 254 V AC, the LD15 is certified across a broad temperature envelope from -55°C to +70°C (T5) or -55°C to +55°C (T6), and carries an IP66/IP67 ingress protection rating with NEMA 4X and 6 compliance. The beacon is offered in six lens colours – red, blue, green, amber, clear, and yellow – with natural black or custom-painted finish options, and optional tag/duty labels and relay-initiate functionality for integration with fire and gas control panels.
Key Features
The MEDC LD15 Ex LED beacon delivers dependable, low-maintenance visual signalling for the most demanding hazardous-area installations:
- Innovative LED array rated for up to 54,000 hours of maintenance-free operation.
- Corrosion-free glass reinforced polyester body with stainless steel 316 backstrap and fixings.
- Five user-selectable functions: steady, 60/80/120 fpm flash, and double flash, local or remote selectable.
- ATEX Ex II 2GD, IECEx Gb/Db, UL and ULC certified for Class I Div 2 and Zone 1 Ex d IIC hazardous locations.
- SIL 2 certified to IEC 61508 for use in safety-instrumented alarm systems.
- IP66/IP67 rated with NEMA 4X and 6 ingress protection for offshore and washdown environments.
- Wide operating voltage range: 12–48 V DC or 110–254 V AC across a single flexible model.
- Choice of six lens colours and optional cast aluminium or stainless steel wire guard.
Industrial Applications
The MEDC LD15 Ex LED beacon is specified throughout fire and gas detection systems, process alarm networks, and general visual signalling installations in oil and gas production facilities, refineries, LNG terminals, offshore platforms, and marine vessels operating in the Gulf. Its corrosion-free construction and SIL 2 certification make it a preferred choice for safety-critical alarm escalation, where a beacon must remain reliable through years of exposure to salt air, high humidity, and UV without degrading in either optical output or enclosure integrity.
Working closely with plant engineers in the region, Seven Star LLC distributes the LD15 to fire and gas system integrators, EPC contractors, and plant safety teams across Muscat, Sohar, and the Salalah free zone, supporting both new safety system design and beacon replacement programs during shutdown and turnaround windows. We supply on request for hazardous-area alarm projects with lead time confirmed at quotation, with full datasheet and certification support available for Oman and GCC regulatory submissions.
Technical Specifications
Key specifications for the MEDC LD15 Ex LED beacon, model MEDC LD15,:
| Parameter | Specification |
|---|---|
| Model | LD15 |
| Type | High-intensity LED strobe beacon |
| Body Material | Glass reinforced polyester; borosilicate glass lens |
| LED Life | Up to 54,000 hours |
| Functions | Steady, 60/80/120 fpm, double flash |
| Voltage | 12–48 V DC; 110–254 V AC |
| Certified Temperature | -55°C to +70°C (T5); -55°C to +55°C (T6) |
| Ingress Protection | IP66 / IP67; NEMA 4X & 6 |
| Hazardous Rating | Class I Div 2 Groups A-D; Zone 1 Ex d IIC T5/T6 |
| Standards | ATEX Ex II 2GD; IECEx; UL/ULC; SIL 2 (IEC 61508) |
| Entries | Up to 3 x 1/2in or 3 x 3/4in NPT |
| Brand | MEDC – Cooper Crouse-Hinds series (Eaton) |
Request a Quote for MEDC LD15 Ex LED Beacon
Seven Star LLC stocks and supplies the MEDC LD15 Ex LED beacon for immediate quotation and regional delivery across Oman and the GCC. As an experienced supply partner for MEDC and Cooper Crouse-Hinds signalling products in Oman and the GCC, we support formal RFQ submissions, confirm lead time at quotation, and offer full technical datasheets for download on request. Contact our instrumentation and hazardous-area electrical division today for pricing, lead time, and compliance documentation for your LD15 requirement.
Related Products
- Datasheet MEDC LD15 Ex LED Beacon Datasheet Download
MEDC product families on this page
Visual signals include the XB15 xenon beacon, the LD15 LED beacon and the SM87 beacon family with its SM87LED version, for Zone 1 and Zone 2 areas. The DB3 is the alarm sounder. Manual alarm devices are the BG manual call point and a manual release unit from the BG2 call point series, listed as BG2E. The SM87JB junction box completes the field wiring. These devices are ordered with long codes such as SM87BGLAD1T1B1NNRAS or BGEB4B6B1DDCF7R, in which each block of characters selects an option.Where MEDC signaling equipment is used
MEDC beacons and sounders announce fire, gas and process alarms on production platforms, in gas plants, refineries, chemical plants, loading terminals and marine vessels. Call points give personnel a way to raise the alarm by hand, and the same devices are wired into fire and gas panels from many system builders.Ordering MEDC beacons and call points: what we need
The complete order code from the label or the project datasheet is the best starting point. If you are selecting from scratch, send the supply voltage, lens color for beacons, tone and sound level for sounders, enclosure material and finish color, cable entry size and number, the certification required and the ambient temperature. For call points add the switch arrangement, any series or end-of-line resistor values, and label or duty plate text.Browse MEDC products by category: Fire & Gas Systems, Fire & Gas Detector, Automation Accessories.
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