SB813 Indoor Tilt Switch
SB813 Indoor Tilt Switch
The SB813 is a simple, robust and very reliable indoor disconnect switch for metalclad switchgear or open frame mounting.
All parts are machined from solid billet materials, such as 304 stainless steel and hard drawn copper.
Ratings: 5kV-38kV, 600A-8000A
- Compact Design
- Easy Inspection / Maintenance
Key features of our SB813 Indoor Tilt Switch
High strength yellow zinc plated steel base frame. High strength epoxy insulators & push rod. Twin blades made of high-conductivity copper. Moving and fixed contacts are made of silver plated hard drawn copper.
For high duty cycle applications where switches are required to operate 20 to 30 times in a day, EMSPEC has developed optional silver inlays. Please consult factory for more details.
The SB813 was designed to meet the most severe applications. Some industrial process plants require 6000 and 8000A switches, which EMSPEC is able to provide.
A Century of Power
Installation and maintenance
At Hapam, we are committed to ensuring long‑term reliability and performance for every high‑voltage disconnector and earthing switch we deliver. Our equipment is designed for durability, easy installation and minimal maintenance, but ageing grid infrastructure can introduce new challenges over time. That’s why we provide fast, efficient retrofit solutions, global service support and access to expert technicians across all regions. From spare parts and installation guidance to testing, technical assistance and emergency repairs, our service organization is ready to support you throughout the entire lifecycle of your equipment.
Looking for a high‑voltage solution?
We design and manufacture reliable high‑voltage disconnectors and earthing switches used worldwide. Whether you need technical advice, a custom configuration or full project support, we are here to assist you.


