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Brand: Wolf Safety
Wolf Safety Wolflite H-251ALED Rechargeable LED Handlamp
Description
Robust 210 lumen LED handlamp for Zone 1 and Zone 2 inspection rounds
The Wolf Safety Wolflite H-251ALED is a rechargeable LED safety handlamp that Wolf updated in 2021 with a new long-life LED light source. It is CE and UKCA marked and certified to ATEX, IECEx and UKEX for use in gas, vapour, mist and dust atmospheres in Zones 1, 2, 21 and 22.
The lamp produces an intense spot beam of about 4 degrees with a lower-level fringe of flood light, driven by a 1.2 W high-power LED rated at 210 lumens at source. A large switch is designed to be operated with gloved or bare hands, and lanyard fixings are built into the housing.
Technical specifications of the H-251ALED
| Parameter | Specification |
|---|---|
| Manufacturer | Wolf Safety Lamp Company, Sheffield, UK |
| Product reference | H-251ALED rechargeable safety handlamp |
| Type of protection | Ex ib intrinsic safety |
| Gas hazard area | Zones 1 and 2, gas groups IIA, IIB and IIC |
| Temperature class (gas) | T4 |
| Dust hazard area | Zones 21 and 22, dust groups IIIA and IIIB |
| Maximum surface temperature (dust) | 170 °C |
| Ambient temperature | -10 °C to +40 °C |
| Certificates | ATEX BAS00ATEX2176; UKEX BAS21UKEX0359; IECEx BAS 16.0076 |
| Enclosure / lens | Anti-static thermoplastic / toughened glass, 6 mm |
| Beam type | Spot with fringe light |
| Light source | High-power LED, part no. H-88, 1.2 W, 210 lm at source, 25,000 hours |
| Battery | Sealed lead acid, part no. H-66, 4 V, 5 Ah, up to 500 recharge cycles |
| Light duration | Up to 18 h |
| Ingress protection | IP66 |
| Weight (including cells) | 1.84 kg |
Features that matter on plant
Wolf lists deep discharge protection to guard the battery against permanent damage, and an emergency illumination function that lights the lamp if power to the charger fails, which helps mark an escape route from a charging point. The housing is a robust anti-static thermoplastic.
The datasheet positions the H-251ALED for cyclic use and short-term standby. For long-term standby on a charger, Wolf points users to the Wolflite XT rechargeable LED handlamp or the rechargeable torch instead.
Chargers, compatibility and selection
The lamp is used with the C-251HV or C-251LV chargers: the HV version is for mains supplies and the LV version for low-voltage supplies. Wolf also publishes an LED retrofit document for older H-251 and H-79 lamps, which is relevant if an existing fleet is being upgraded rather than replaced.
Check that the Ex marking matches the zone, gas group and temperature class of the work area. The H-251ALED is rated for ambient temperatures from -10 to +40 degrees C, so confirm that the site range falls inside that window before issue.
At 1.84 kg it is a heavier lamp than the lithium-ion XT range, a consequence of its sealed lead acid cells, but it offers up to 18 hours from a single charge. Inspect the glass lens and housing for damage before each shift and follow the manufacturer instructions for battery handling and disposal.
Documents and quotation
The attached document is the Wolf Safety updated H-251ALED rechargeable handlamp datasheet (SL002 issue 11). Certificates and a user manual are published separately by the manufacturer.
For a quotation, send the quantity, charger voltage supply and hazardous-area zone. Related hazardous-area products are listed under Automation Accessories.
Datasheets & Documents
- Datasheet Wolf Safety Wolflite H-251ALED rechargeable handlamp datasheet (SL002 issue 11) Download
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About brand
Wolf Safety is a Sheffield manufacturer of ATEX and IECEx certified lighting for hazardous areas, with a history that starts with mining safety lamps in 1912. Its portable, temporary, installed and area luminaires are used by maintenance, inspection and shutdown teams working where flammable gas, vapour or dust may be present.
Hazardous-area lighting ranges
The Wolf Safety catalogue covers rechargeable handlamps and torches, headtorches, linkable temporary floodlights and luminaires, tank lighting kits, installed linear, floodlight, highbay and bulkhead luminaires, and towerlite area lights. Supporting products include ATEX transformers, splitter boxes, cable reels, extension cables and ventilation fans.
Certification and application
Wolf Safety publishes ATEX, IECEx and UKEX certificates alongside its datasheets, so buyers can check the zone, gas group and temperature class before a lamp is issued to a work crew. Typical uses include tank and vessel entry, plant turnarounds, refinery and offshore inspection rounds, and emergency lighting where a hazardous atmosphere is possible.
Sourcing through Seven Star LLC
Seven Star LLC supplies Wolf Safety lighting to customers in Oman and the GCC and can quote against the datasheet model, voltage and zone requirements of each project.
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Frequently Asked Questions
What light output does the H-251ALED give?
The LED is rated at 210 lumens at source, 1.2 W, with a spot beam of about 4 degrees plus fringe light.
How long does a charge last?
Wolf quotes up to 18 hours of light duration from the 4 V, 5 Ah sealed lead acid battery.
Which zones is it approved for?
Gas Zones 1 and 2 (IIA, IIB, IIC, T4) and dust Zones 21 and 22, with ATEX, IECEx and UKEX certificates.
Which chargers does it use?
The C-251HV or C-251LV chargers, as named on the Wolf datasheet.
What is the ingress protection rating?
IP66, with a 6 mm toughened glass lens.
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