Berco® Power Resistors

Discover our exceptional range of resistive products, boasting a legacy of quality stemming from the esteemed British Electric Resistance Company (BERCO®) since 1926. Incorporated into the Claude Lyons family in 1976, our resistors epitomise reliability and precision, serving diverse sectors including laboratories, industries, and defence establishments.

With options like Bercostat® Rotary Rheostats, Berco® RA Fixed and Preset Resistors, Berco® Mica Card Resistors, and Berco® Tubular Fixed & Sliding Resistors, we offer unparalleled versatility to meet your exact requirements. Our commitment extends to ensuring compliance with MOD and NATO codes for defence and maintenance needs, cementing Claude Lyons' position as your trusted partner in electrical solutions.

Legacy quality resistors for diverse applications

MOD and NATO compliant resistors

Extensive range for industrial needs

Specifications

Frequently Asked Questions

Specifications

Bercostat® Rotary Rheostats

Extensive range covering industrial and laboratory needs
Seven basic frame sizes from 25W to 500W
Options include hand or motor driven, single or ganged, and open or enclosed designs

Berco® RA Fixed and Preset Resistors:

Offered in enamelled, silicone coated, or open wire varieties
Power ratings from 20W to 380W
Resistance ranges from 0.22Ω to 100kΩ, catering to various applications

Berco® Mica Card Resistors

Ratings from 45W to 260W
Wide range of resistance options available
Ideal for applications requiring moderate power dissipation

Berco® ‘J’ Coil Resistors

Helix design maximises heat dissipation for high ratings
Available in ratings from 0.1Ω to 5.08Ω
Mounted on porcelain insulators for robust construction

Berco® Tubular Fixed & Sliding Resistors

Suitable for users needing high dissipation capacities
Robust construction for industrial and laboratory use
Single and multiple-tube models available, with ratings from 240W to 1080W and resistance from 0.2Ω to 1.4KΩ

Frequently Asked Questions