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Dalroad supply an extensive selection of industry-proven isolators also known as isolation switches, that are designed for ease of use in specific applications. Widely used across food processing, air conditioning, mining, power distribution, renewable energy, fire, oil and gas and marine industries, our range of isolators offer optimum safety, reliability and performance. We also only stock isolators that are fully compliant with both British Standard EN 12101-3 for smoke and heat control systems and IEC 60947-3 safety standards. KATKO produce an extensive range of safety switches, load break switches, switch fuses, and motor protection switches and safety accessories. KATKO standard isolator and safety switches range from 10A to 630A and are available up to 1600A for special applications. Katko's isolators and switch disconnectors operating and storage temperature range from -40°C to +80°C.


  • Polycarbonate (KEM)  IP66/IP65
  • Polycarbonate (KSM)  IP67/IP65
  • ABS (KEM) IP65
  • Sheet steel (KET) IP65/IP55
  • Aluminium (KEA) IP66/IP65
  • Stainless steel (KER) IP69K/IP69/IP66/IP65
Dalroad is the sole UK authorised distributor of KATKO products. For further information regarding specific isolators or brands, see product pages below or contact our dedicated sales teams for a quote.

KATKO logo


Many of the isolators we provide are manufactured for specific industry applications and tailored to the needs of that usage, such as the PV Photovoltaic DC Isolator Switches for solar panels, the KER R/RS Stainless Steel Enclosed Isolators for hygienic or heavy industry requirements, or the KEA FR / FR3 Fire Rated Aluminium Enclosed Isolators for use in harsh weather conditions. Ranging up to 32A 1200V DC, DC21B, the isolators we supply all display good resistance to UV and corrosion.



KATKO are a family-Finnish manufacturer with over 70 years experience designing and manufacturing load break switches, switch fuses, isolators and accessories. KATKO’s products are designed to meet the highest safety requirements and performance standards while remaining environmentally friendly and easy to install.

KATKO produces a wide range of high-quality isolators, safety switches and accessories for specialist markets, including:

  • Food production
  • Air quality
  • Heavy industry
  • Hazardous and corrosive areas (ATEX/RINA certified)
  • Renewable energy
  • Control panels


KATKO Protect Your Switch


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