Dual head safety pull switches with expanded cable span
I&C February 2026
Electrical Power & Protection
Referro Systems has added the latest Dual Head range of Allen-Bradley’s Guardmaster Lifeline 5 safety pull switches to its portfolio. Used extensively in material handling, conveyor systems and manufacturing lines, Lifeline 5 is ideal for protecting long stretches of equipment where quick access to a safety pull switch and emergency stop is vital. “These systems can easily be overlooked in an industrial environment, but we have found that it becomes an integral part of a working system as it continuously monitors cable tension to prevent false trips caused by thermal expansion, sag or contraction, ensuring dependable operation in varied industrial settings, even under rigorous environmental conditions,” explains Adrian van Wyk, managing director of Referro Systems.
The key enhancement in the Dual Head Lifeline 5 is its expanded maximum cable span. While the existing single-head Lifeline 5 supports cable lengths up to 100 metres, the new dual-head model extends this reach to 200 metres. This allows plants and conveyor systems with large footprints to protect longer sections using a single integrated safety system, reducing complexity and installation costs.
The dual-head configuration means two microprocessor-based switches operate on the same pull rope, improving system reliability and safety through redundancy. “If one switch encounters an issue, such as a trapped or snagged rope, the second switch on the opposite end can still detect cable pulls or slack, maintaining continuous protection. This redundancy is particularly vital in environments where obstacles or wear and tear create a higher probability of cable entrapment,” says Van Wyk.
For more information contact Referro Systems, +27 12 349 1297, [email protected], www.referro.co.za
Further reading:
Emissions pressures are not just hot air
Electrical Power & Protection
Dennis Williams, commercial director of AES says that the South African government aims to push towards global standards in emissions, but it might be difficult for our industries to carry the financial burden. This is where AES fits in.
Read more...
ABB achieves zero operational emissions
ABB South Africa
Electrical Power & Protection
ABB’s factory in Oiartzun, Spain, has reached a major sustainability milestone.
Read more...
Energy cannot be destroyed, it can only be transferred
Schneider Electric South Africa
Electrical Power & Protection
Industry produces significant amounts of waste. Unfortunately, a lot of this waste is simply disposed of, usually impacting the environment. What if these byproducts could be transformed into a source of energy?
Read more...
Producing solar hydrogen without platinum
Electrical Power & Protection
A research team led by Chalmers University of Technology, Sweden, has presented a new way to produce hydrogen gas without the scarce and expensive metal platinum.
Read more...
Energy-efficient perimeter cooling system for small, medium and edge applications
Electrical Power & Protection
Vertiv has enhanced the Vertiv CoolPhase Perimeter PAM air-cooled range with new ratings of cooling systems and Vertiv CoolPhase Condenser.
Read more...
High-quality DC/DC brick-type converters
Vepac Electronics
Electrical Power & Protection
PowerGood’s high-quality DC/DC brick-type converters are engineered for exceptional reliability, making them the ideal power conversion solution for demanding, high-end applications.
Read more...
SF6-free pure-air medium voltage switchgear
Schneider Electric South Africa
Electrical Power & Protection
As South Africa intensifies its move towards cleaner, smarter energy systems, solutions like Schneider Electric’s globally recognised SF6-free GM AirSeT pure-air medium voltage switchgear is taking the country one step closer to achieving its decarbonisation goals.
Read more...
South African businesses can alleviate energy price crisis
Electrical Power & Protection
While grid instability remains a concern, the immediate and most critical driver of South African commercial and industrial investment in renewable energy is the escalating cost of electricity.
Read more...
Real-time modelling is the key to a resilient, bi-directional energy grid
Schneider Electric South Africa
Electrical Power & Protection
Utilities and municipalities are facing a challenge as the country’s legacy power grid, engineered for one-way energy delivery from centralised suppliers to end-users, must rapidly evolve to meet a new paradigm.
Read more...
Shielding data centre growth from the looming power crunch
Schneider Electric South Africa
Electrical Power & Protection
Today’s digital economy is placing unprecedented strain on the power grid. The good news is that these challenges are not insurmountable. By adopting proactive strategies such as alternative power sources, infrastructure planning and software, operators can secure capacity, build resilient facilities and scale sustainably.
Read more...
printer friendly version