The GL series represents a new generation of SF6 or CO2-O2 live tank circuit breakers, engineered for superior safety, reliability, and ease of use. Featuring a high-performance spring-spring operating mechanism combined with CSD100 controlled switching and monitoring device, the GL series enables quick, streamlined onsite installation, providing a cost-effective solution for utilities worldwide. 

Versatile Technology & Design 

Available in both single-pole and three-pole operated designs, our portfolio covers a wide range of applications from 36 kV up to 245 kV (three poles) and up to 800 kV (single pole). The series utilizes advanced single or double-motion technology with reduced chamber sizes. It’s available with either porcelain or composite insulators to suit diverse infrastructure requirements. 

Global Standards & Environmental Adaptability 

Tested rigorously to both IEC and ANSI standards, the GL series is built to perform in the most challenging conditions, including highly seismic areas, heavily polluted environments, and extreme low-temperature climates. 

Digital Native

Available in both single-pole and three-pole operated designs, our breakers provide the flexibility to choose between conventional or digital-native configurations. For accelerated project timelines, our digital-native units feature the CSD100 controlled switching and monitoring device, ensuring faster delivery, streamlined commissioning, and enhanced grid reliability. 

GRiDEA™: The path to decarbonization

Reflecting our commitment to sustainability, the portfolio offers a choice of insulating and switching media. Customers can opt for proven SF6 technology or transition to our advanced SF6-free solutions utilizing CO2-O2 technology, which significantly reduces environmental impact without compromising performance. Our SF6-free GL live tank circuit breaker is part of our GRiDEA portfolio of solutions to accelerate the decarbonization of the grids. 

NEW! GL316c SF6-free 420 kV live tank circuit breaker. 

Live Tank Circuit Breakers up to 800 kV

The GL series represents a new generation of SF6 or CO2-O2 live tank circuit breakers, engineered for superior safety, reliability, and ease of use. Featuring a high-performance spring-spring operating mechanism combined with CSD100 controlled switching and monitoring device, the GL series enables quick, streamlined onsite installation, providing a cost-effective solution for utilities worldwide. 

Versatile Technology & Design 

Available in both single-pole and three-pole operated designs, our portfolio covers a wide range of applications from 36 kV up to 245 kV (three poles) and up to 800 kV (single pole). The series utilizes advanced single or double-motion technology with reduced chamber sizes. It’s available with either porcelain or composite insulators to suit diverse infrastructure requirements. 

Global Standards & Environmental Adaptability 

Tested rigorously to both IEC and ANSI standards, the GL series is built to perform in the most challenging conditions, including highly seismic areas, heavily polluted environments, and extreme low-temperature climates. 

Digital Native

Available in both single-pole and three-pole operated designs, our breakers provide the flexibility to choose between conventional or digital-native configurations. For accelerated project timelines, our digital-native units feature the CSD100 controlled switching and monitoring device, ensuring faster delivery, streamlined commissioning, and enhanced grid reliability. 

GRiDEA™: The path to decarbonization

Reflecting our commitment to sustainability, the portfolio offers a choice of insulating and switching media. Customers can opt for proven SF6 technology or transition to our advanced SF6-free solutions utilizing CO2-O2 technology, which significantly reduces environmental impact without compromising performance. Our SF6-free GL live tank circuit breaker is part of our GRiDEA portfolio of solutions to accelerate the decarbonization of the grids. 

NEW! GL316c SF6-free 420 kV live tank circuit breaker. 

GL107X
GL107X 

Live Tank Circuit Breaker from 36 kV up to 40.5 kV 

More Info GL107X
GL308 and GL309
GL308 and GL309

Live Tank Circuit Breakers for 52 kV and 72.5 kV 

More Info GL308 and GL309
GL309g, GL310g, GL311g and GL312g
GL309g, GL310g, GL311g and GL312g

live tank circuit breakers from 72.5 kV up to 145 kV

More Info GL309g, GL310g, GL311g and GL312g
GL309c, GL310c, GL311c and GL312c
GL309c, GL310c, GL311c and GL312c

SF₆-free Live Tank Circuit Breakers 
From 72.5 kV to 145 kV down to -50 °C

More Info GL309c, GL310c, GL311c and GL312c
GL310 S, GL311 S and GL312 S
GL310 S, GL311 S and GL312 S

Live Tank Circuit Breakers from 100 kV to 145 kV
Down to -30 °C with pure SF₆

More Info GL310 S, GL311 S and GL312 S
GL310, GL311 and GL312
GL310, GL311 and GL312

Live Tank Circuit Breakers from 100 kV to 145 kV
Down to -40 °C with pure SF₆ and - 60 °C with gas mixture

More Info GL310, GL311 and GL312
GL313
GL313 

Live Tank Circuit Breaker from 145 kV up to 170 kV 

More Info GL313
GL314 and GL314X
GL314 and GL314X 

Live Tank Circuit Breakers up to 245 kV and 300 kV 
 

More Info GL314 and GL314X
GL314 BPS
GL314 BPS

Live Tank Circuit Breaker By-Pass-Switch up to 245 kV 

More Info GL314 BPS
GL315c and GL316c

SF₆-free Live Tank Circuit Breakers from 300 kV to 420 kV
Down to -50 °C

More Info
GL315 and GL315X
GL315 and GL315X 

Live Tank Circuit Breakers up to 362 kV 

More Info GL315 and GL315X
GL316 and GL316X
GL316 and GL316X 

Live Tank Circuit Breakers up to 420 kV 

More Info GL316 and GL316X
GL317 and GL317X
GL317 and GL317X 

Live Tank Circuit Breakers up to 550 kV 

More Info GL317 and GL317X
GL318 and GL318X
GL318 and GL318X 

Live Tank Circuit Breakers up to 800 kV 

More Info GL318 and GL318X