OSRAM S26A 18IN/16GA/ULSF2 - Ceramic lampholder for R7s / RX7s (RSC) high temperature bases
The OSRAM S26A is a professional lampholder designed for R7s and RX7s (RSC, Recessed Single Contact) base lamps. Made of soapstone ceramic , aluminum, and plated steel, with silver-plated brass contacts, it offers high mechanical stability and reliable electrical conductivity even in demanding environments. It incorporates 16 AWG black SF-2 (200°C, 600V) conductors with a length of 457 mm and a 6 mm stripped insulation, facilitating a quick and secure connection inside luminaires.
With a maximum power rating of 3000 W and a maximum voltage rating of 600 V , the S26A provides thermal and electrical margin for halogen and metal iodide applications. Its compact geometry (39.7 mm long, 24.6 mm wide, and 37.6 mm high) and front flange simplify mounting in luminaires and equipment where space is critical. It complies with UL (file E31557) , CSA (LR20904) , CE , and RoHS standards , making it a safe and standardized option for replacement or new equipment manufacturing.
Main features
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Base compatibility: R7s and RX7s (RSC, Recessed Single Contact).
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Premium materials: Steatite ceramic body / aluminum / plated steel; silver-plated brass contacts.
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Electrical capacity: up to 3000 W and 600 V.
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Wiring: SF-2 type (high temperature 200 °C, 600 V), 16 AWG, black color, 457 mm in length; 6 mm stripped.
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Body dimensions: 39.7 mm (length) × 24.6 mm (width) × 37.6 mm (height).
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Mounting: front flange for easy fixing.
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Certifications: UL recognized (E31557), CSA (LR20904), CE marked; RoHS compliant .
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Weight of the set: approx. 37 g
Product benefits
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Thermal reliability: The ceramic and SF-2 cable withstand operating temperatures up to 200°C, reducing heat-related failures.
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Stable electrical contact: Silver-plated brass enhances conductivity and corrosion resistance, while maintaining low contact resistance.
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Quick installation: pre-installed conductors (457 mm) and front flange for screwing directly to the luminaire.
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Wide compatibility: suitable for linear halogen and metal halide lamps with R7s/RX7s base.
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Regulatory compliance: UL/CSA/CE and RoHS compliance for safe integration into new or replacement equipment.
Use cases
- Halogen luminaires and accessories for industrial and commercial use.
- Equipment with metal halide lamps (projectors, wall washers, outdoor spotlights).
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Halogen instrumentation and laboratory or process equipment where high operating temperatures are required.
- Entertainment and industrial sectors where compact and heat-resistant R7s/RX7s lampholders are used.
Frequently Asked Questions
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Is it compatible with R7s base LED lamps? Mechanically, it is compatible with lamps that use the R7s/RX7s base. Always check the available space and the thermal management of the original light fixture.
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What is the maximum working temperature? 200 °C, depending on the SF-2 cable type and the assembly design.
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How is it mounted? It has a front flange for fixing to the front of the lamp holder.
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Does it include the lamp? No, only the lamp holder and its wires are supplied.
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What certifications does it have? UL recognized (E31557), CSA (LR20904), CE marking and RoHS compliance.
Installation and safety recommendations
- Cut off the power supply before handling the equipment and respect the maximum power/voltage (3000 W / 600 V).
- Use terminals and wiring compatible with 200°C and 600V . Do not reduce the gauge from the supplied 16 AWG if the thermal/electrical conditions are equivalent or higher.
- Verify that the front flange is seated correctly and that there is no mechanical stress on the conductors.
- After assembly, check for continuity and absence of play in the contacts.
Project description
OSRAM S26A 18IN/16GA/ULSF2 (NAED 69011) lampholder for R7s/RX7s (RSC) base; steatite ceramic/aluminum/plated steel body; silver-plated brass contacts; 3000 W max., 600 V max.; operating temperature up to 200 °C; SF-2 16 AWG black cable, 457 mm, 6 mm stripped; dimensions 39.7 × 24.6 × 37.6 mm (L×W×H); front mounting flange; compliant with UL E31557, CSA LR20904, CE and RoHS.
