S&S Power Switchgear, incorporated on 1975, is an Indian Multinational Company and a global engineering and technology group. The company has its registered office & manufacturing plant located at Maraimalai Nagar (near Chennai) Tamil Nadu India.

The company provides reliable Medium Voltage (MV) and High Voltage (HV) Disconnectors, Protection and Control Panels and dedicated Pot Controllers for the Aluminium Industry. Recognised as an Indian Multinational Company with a global footprint in Energy and Automation, its products undergo rigorous testing to meet international standards, ensuring high reliability and safety. The company operates through its subsidiaries, S&S Power Switchgear Equipment (SSPSE), Acrastyle (UK), and Hamilton Research & Technology (HART). 

Business area of the company

The company is engaged in designing, manufacturing, and selling circuit breaker products, servicing of circuit breakers. The company is also providing corporate shared service to its subsidiaries. 

Products of the company

• Centre break disconnectors 
• Double break disconnectors 
• Pantograph disconnectors 
• Vertical break disconnector

History and milestones

• 1975: S&S Power Switchgear incorporated. Commercial production of HRC fuses commenced in collaboration with Brush Fusegear.  
• 1978: High voltage disconnecting switches introduced in collaboration with Southwales Switchgear.  
• 1981: Medium voltage vacuum switchgear introduced for the first time in India in collaboration with Brush Switchgear. Hawker Siddeley Switchgear joins as an equity partner as part of collaboration agreement.  
• 1985: Launched medium voltage SF6 circuit breakers in collaboration with Southwales Switchgear. 
• 1988: Hawker Siddeley disinvests its shares of S&S Power.  
• 1989: Introduces miniature circuit breakers in collaboration with AEG Germany. 
• 1990: Original promoters disinvest their holdings in favour of the Jalan Group.  
• 1994: New products in medium voltage launched. S&S Power successfully designs, type tests and introduces horizontal drawout vacuum circuit breakers and pole mounted vacuum auto reclosers into the market. 
• 1995: The company restructures its organisation to improve its customer orientation.
• 1996: Exclusive unit for the manufacture of disconnectors for world market established at Pondicherry.  
• 1998: New product in medium voltage launched. It successfully designs, type tests and introduces 11kV, 2000 Amps, 31.5kA indoor switchgear with vacuum circuit breakers in the market. 
• 1999: It obtains ISO 9001 certification from RWTUV, Germany for all its manufacturing units.  
• 2000: Engineering Export Promotion Council selects S&S Power for the Best Exporter Award for consecutive two years 1997 and 1998. S&S Power decides to concentrate on its core competence area in manufacture of medium voltage switchgear & disconnector. Fuse & MCB divisions hived off.
• 2001: Approval obtained from Electricity Authority of UK and NGC, UK for use of disconnectors in UK grid.  
• 2002: Electricity Authority of UK & National Grid Council S&S make for supply and installation in United Kingdom. 
• 2003: Upgraded to ISO 9001:2000 version.  
• 2007: Established new factory for control and relay panels.
• 2011: The company established a joint venture with Coelme to promote its Disconnector products, combining expertise and market reach. 
• 2011: It sets up a new unit at M.M. Nagar, Chennai, marking an important step in strengthening its Chennai operations. This facility also enabled the systematic nurturing and growth of its High-Voltage (HV) Disconnector business, laying a stronger foundation for the years ahead.
• 2016: The company headquarters was shifted to a sprawling 50,000 sq. ft. integrated multi-modal facility in Chennai to further strengthen its manufacturing footprint in the region, bringing together operations, innovation, and administration under one roof.
• 2023: Its Chennai and UK facilities continued to drive growth, while the Pondicherry plant was divested and its operations integrated into the Chennai unit.
• 2024: A new management team was put in place under the leadership of Krishnakumar Ramanathan (KK). 
• 2024: It completed the acquisition of Hamilton Research and Technology (HART), a Kolkata-based company specialising in proprietary automation technology.
• 2024: As part of the restructuring, Vikas Arora, CEO of HART, was integrated into the wider S&S Power leadership team, strengthening collaboration across the group.