CONTRACTORS’ CORNER
2
Safe & simple: Hager’s HWS series, the new standard in air circuit breakers I n low-voltage distribution systems, equipment selection is rarely limited to performance alone. Physical footprint, installation practicality, and project timelines often play an equally critical role in what range for everyday applications, built for reliable protection and easy installation in constrained spaces. The hws series sits alongside the hw+ range, Hager’s advanced Air Circuit Breaker solution for more complex requirements. This standard range offers a higher-value solution, giving specifiers ultimately gets specified. Within this environment, the hws series is Hager’s standard Air Circuit Breakers (ACBs)
the flexibility to match the right level of capability to each project without compromising Hager reliability. Performance under pressure Performance requirements continue to rise in modern electrical installations, particularly under more demanding operating conditions. The hws series of ACBs is designed to operate at ambient temperatures of up to 50°C without de-rating, maintaining
Regular maintenance should be viewed as an investment.
Scan and see where to buy!
hws series air circuit breakers The new standard for safety, reliable performance, and flexibility.
stable performance in high-temperature environments. The range extends up to 85 kA breaking capacity and is available in two frame sizes (hws2 and hws4), covering applications from 320 A to 4000 A. A Pollution Degree 4 rating further supports use in environments where dust and moisture are more prevalent and can impact long-term equipment performance. apparent during assembly and wiring, where efficiency and consistency are critical. Screw-less terminal blocks for accessory wiring support faster, more consistent terminations in repetitive build environments, while rear connections can be configured for horizontal or vertical installation up to 4000 A, allowing alignment with existing busbar layouts without redesign. A modular accessory system then enables additional functions such as motor operators, shunt trips, and undervoltage releases without extensive rewiring. Designed for the workbench Installation benefits become most Certified protection Compliance and protection coordination remain central to the design. The hws series complies with IEC 60947-2 standards and carries CE and CCC certifications, confirming conformity with international safety requirements for low-voltage switchgear. Protection settings are adjusted using rotary dials on the built-in OCR trip unit. It uses LSI (Long-time, Short-time, and Instantaneous) protection, allowing the breaker to respond differently depending on fault severity and ensuring faults are isolated correctly within the distribution system As installation environments continue to evolve, the role of switchgear extends beyond protection alone. The hws ACB series reflects this shift, treating performance, configurability, and practical installation considerations as part of a single design requirement. The hws range is available through ElectroMechanica, with local technical support and stock holding to assist with project requirements.
Ratings: 320 – 4000 A Frame Sizes (HWS2 & HWS4) Breaking Capacity up to 85 kA
Scan to download the brochure
www.em.co.za
www.em.co.za
SPARKS ELECTRICAL NEWS
MAY 2026
Made with FlippingBook flipbook maker