Boltswitch by Socomec
North American leader in bolted pressure contact switches since 1953. Pioneering innovative electrical switching solutions for high-current applications.
Heritage of Innovation
Founded in 1953 in Crystal Lake, Illinois, Boltswitch has been the pioneering force in bolted pressure contact switch technology for over 70 years.
Now proudly part of the Socomec family, Boltswitch continues to manufacture all products in the USA, maintaining the highest standards of quality and safety that have defined the brand since its inception.
“Though our interest in safety may at times exceed our interest in sales, we have been able to grow with a feeling of satisfaction.”
Industry Firsts
- First UL-listed switches for high fault current circuits
- First Quick-Make, Quick-Break operators up to 4000 amperes
- First to pass UL977 Fused Power-Circuit Device tests
- First switches passing UL tests at 600 volts
- Pioneer in Shunt-Trip operator technology
Product Families
Boltswitch’s catalog is organized by fundamental switching technology and operational style, providing the right solution for every heavy-duty electrical switching application.
Single Throw Fusible Bolted Pressure Contact Switches
Reliable on-load switching with current-carrying capacity matching that of a bolted bus connection. High efficiency and robust operation with quick-make, quick-break mechanisms.
Amperage Range:
30A - 6000A
Key Product Lines:
- T Series (Standard open style)
- L VT Series (800-1200A)
- SL/SLB Series (4000-6000A)
- VL/VLB Series (800-3000A enclosed)
- EJ/ER/EL Series (Top feed enclosed)
Double Throw Fusible Bolted Pressure Contact Switches
Features Geneva dual operator mechanism with mechanical interlocking of two independent switches managed by a single handle. Enables safe source transfer and redundancy in critical circuits.
Amperage Range:
400A - 6000A
Key Product Lines:
- SL Geneva Series (4000-6000A)
- VL Geneva Series (800-3000A)
- T Geneva Series (400-600A)
- T GT Geneva Series (Enclosed 400-600A)
Fusible Pullout Switches
Compact, low-maintenance devices designed for easy and safe fuse replacement. Load-break rated with safety features for routine operation and maintenance.
Amperage Range:
30A - 400A
Key Product Lines:
- CC Series (30A)
- T Series (30-400A)
- J Series (30A)
- R H Series (30-60A)
- CD Series (60A)
Specialty Switches
Specialized solutions including Mill Switches, Tie Switches, No-Fuse Disconnects, and space-saving models tailored to specific industrial needs.
Amperage Range:
400A - 6000A
Key Product Lines:
- Mill Switch (800-3000A)
- Tie Switch (800-4000A)
- No-Fuse Disconnects (800-6000A)
- Space Saving Series WL (800-2000A)
- Series B (400-600A)
Bolted Pressure Contact Technology
Superior Conductivity
Current carrying capacity equal to a bolted bus connection, ensuring maximum efficiency and minimal resistance.
Enhanced Safety
UL 977 listed with 200 kAIC rating, designed for circuits with high available fault currents.
Reduced Heat Generation
Runs cooler and more efficiently than knife or butt contact switches, extending equipment life.
Reliable Operation
Quick-Make, Quick-Break technology ensures consistent performance across all amperage ranges.
Arc Flash Protection
Integral series provides arc energy reduction to comply with NEC 240.67 safety requirements.
Made in USA
Manufactured in Crystal Lake, Illinois with rigorous quality control and testing standards.
Applications & Industries
Industrial Motor Controls
AC/DC Distribution Panels
Power Distribution Systems
Transit System Power
Switchgear Applications
Transformer Protection
Critical Industrial Devices
High Current Load Centers
Ready to Experience Boltswitch Quality?
Contact Gross Automation today for expert consultation on Boltswitch bolted pressure contact switch solutions.