Load Break Switches / Isolators

KATKO Load Break Switches / Isolators

Safe, Durable, and Reliable Switching for Industrial and Commercial Applications

KATKO Load Break Switches are engineered for dependable on-load switching and disconnection in a wide range of electrical applications. Designed and manufactured in Finland, KATKO isolators are known worldwide for their robust build quality, high safety standards, and long service life — making them the perfect solution for isolating electrical circuits in industrial, commercial, and energy environments.

Key Features

• Current Ratings: Available from 16A to 1600A
• Pole Configuration: 1P, 2P, 3P, 4P, 6P, and changeover options
• High Breaking Capacity: True load-break performance under IEC 60947-3
• Construction:
  • Durable polycarbonate, aluminum, or stainless steel enclosures
  • IP65/IP66 protection for harsh environments
• Visible Contact System: Safe disconnection with clear ON/OFF indication
• Padlockable Handle: Enhances safety during maintenance
• DIN Rail, Panel, or Base Mounting Options
• AC-23A and DC Switching Capability for resistive and inductive loads
• UV-resistant materials for outdoor use
• Available in enclosed and switch-disconnector-only (base-mount) versions

Benefits

• Reliable Isolation for motors, machinery, solar inverters, HVAC, and distribution systems
• Built to Last with impact-resistant housings and weatherproof enclosures
• Quick and Easy Installation with flexible mounting and wiring options
• International Compliance with standards like IEC 60947-3, UL508, and CE
• Modular Accessories such as auxiliary contacts, door interlocks, shaft extensions

Typical Applications

• Industrial Automation: Motor isolation and maintenance shutdown
• Commercial Buildings: Distribution board isolation and fireman switches
• Renewable Energy: DC isolators for solar photovoltaic systems
• Food & Beverage: IP-rated stainless steel models for hygiene-sensitive areas
• OEM Panel Builders: Compact modular versions for switchboards
• Marine & Offshore: Heavy-duty corrosion-resistant models for salty environments

Available Variants