List of Relay Protection Devices to be phased out

List of Relay Protection Devices to be phased out

Siemens have announced that SIPROTEC Compact 7SJ80, 7SJ81, 7SK80, 7SK81 and 7RW80 will be phased out, with the products available up to 30 September 2026. Due to the successful market launch of the successor products, you will find below all product groups that are scheduled for product phase-out. These products are expected to be no longer available for order after October 1, 2028. If you have any. As large commercial and industrial construction ramped up in the 1990s and the size of facilities grew, electrical distribution transitioned from low voltage (480 volts and below) to medium voltage (12–15 kV). If you want to order full relays to hold as spares, now is your time to get ordering. We still offer documentation on all phased out products. [pdf]

Function of thermal relay protection devices

Function of thermal relay protection devices

A thermal relay is an electromechanical device that detects temperature changes in electrical circuits, protecting equipment from overload and overheating. Let's follow the sharing from BTB Electric through the following article to better understand the structure, working principle, function and. So, the thermal relay is one of the types of the relay, used to provide complete safety against single phasing, unbalanced voltages & overloads. [pdf]

Switches that can control access devices

Switches that can control access devices

Ability switches enable individuals with significantly limited movement to operate computers, home controls, wheelchairs, communication devices, recreational equipment and much more. Switches generally fall into two broad types: mechanical and electrical. Inclusive offers a wide range of switch access products, designed to empower learners with disabilities or physical limitations to control electronic devices using switches instead of traditional input methods like keyboards or mice. Daily tasks like turning knobs can be complex for those with limited or impaired motor skills. Adaptive switches, sometimes called. The Sophos Switch Series provides secure, scalable Ethernet access for your wired and wireless devices while putting LAN connectivity fully under your control. [pdf]

Differential protection of relay protection devices

Differential protection of relay protection devices

Differential protection is a power system relay method that compares current entering and leaving a protected zone. Principle of Operation: These relays activate based on discrepancies in electrical quantities. A differential relay is a protective device that detects imbalances in incoming and outgoing currents, safeguarding transformers, generators, motors, and busbars. [pdf]

Strictly control access to network security devices

Strictly control access to network security devices

Network access control (NAC) is a security framework that regulates how devices and users access network resources. Securing network devices is essential for preventing unauthorized access and maintaining network integrity. This framework establishes best practices for device authentication, firmware updates, and real-time monitoring to detect potential threats. It authenticates, authorizes, and continuously monitors every device that attempts to access your network resources — from employee laptops to IoT sensors to guest. Network Access Control (NAC) is a critical component of modern cybersecurity strategies aimed at safeguarding network infrastructure from unauthorized access, security threats, and data breaches. [pdf]

Need Precision Optical Test Instruments for Datacenter & AI?

Request a free quote for OTDR, power meters, light sources, spectrum analyzers, return loss testers, VFL, or complete fiber test kits – all optimised for datacenter interconnects, leaf‑spine switching, and AI network validation. EU‑owned manufacturer with local support in South Africa – reliable, accurate, and field‑proven.