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 for superior performance.

Key Features & Benefits

Superior Conductivity

Current carrying capacity equal to a bolted bus connection

Quick-Make, Quick-Break

Fast and reliable switching operation for many product lines

High Thermal Efficiency

Runs cooler and more efficiently than traditional switches

Multiple Configurations

Open and enclosed styles to meet various application needs

Product Series

T Series

Standard open style, multiple amp ratings

400-600A
Open

Key Features:

  • Quick-Make, Quick-Break operation
  • UL 977 Listed
  • Class L fuse compatible
  • Multiple mounting options

L VT Series

Open style, high amperage applications

800-1200A
Open

Key Features:

  • Heavy-duty construction
  • Bolted pressure contacts
  • High thermal efficiency
  • Industrial grade materials

R, J, JB Series

Open style, mid-range applications

400-600A
Open

Key Features:

  • Compact design
  • Reliable switching
  • Easy maintenance
  • Cost-effective solution

LB Series

Open style, 800 ampere rating

800A
Open

Key Features:

  • Single amperage rating
  • Proven reliability
  • Standard mounting
  • Quick installation

SL, SLB Series

Open style, high current applications

4000-6000A
Open

Key Features:

  • Highest amperage range
  • Heavy industrial use
  • Superior heat dissipation
  • Maximum conductivity

VLVLB, SLSLB Series

Enclosed, indoor/outdoor rated

800-4000A
Enclosed

Key Features:

  • Weather protection
  • Type 1 indoor/Type 3R outdoor
  • Environmental sealing
  • Corrosion resistance

VLDC Series

Enclosed, high current switching

800-2000A
Enclosed

Key Features:

  • High current density
  • Compact enclosed design
  • DC applications
  • Industrial grade enclosure

VL, VLB Series

Enclosed, indoor/outdoor applications

400-3000A
Enclosed

Key Features:

  • Versatile amperage range
  • All-weather operation
  • Secure enclosure
  • Multiple configurations

EJ, ER, EL Series

Top feed, enclosed design

400-800A
Enclosed - Top Feed

Key Features:

  • Space-saving top feed
  • Enclosed protection
  • Easy cable routing
  • Vertical mounting

EJB, ELB Series

Bottom feed, enclosed design

200-1200A
Enclosed - Bottom Feed

Key Features:

  • Bottom cable entry
  • Wide amperage range
  • Flexible installation
  • Ground-up design

Technical Specifications

Electrical Ratings

Voltage Rating:Up to 600 VAC/VDC
Current Range:200A - 6000A
Fault Current Rating:200 kAIC with fuses
Fuse Class:Class L compatible
UL Listing:UL 977 Listed

Construction Features

Contact Type:Bolted Pressure
Operation:Quick-Make, Quick-Break
Enclosure Types:Open & Enclosed
Environmental:Type 1 Indoor / Type 3R Outdoor
Manufacturing:Made in USA

Typical Applications

Industrial Motor Controls

Power Distribution Panels

Switchgear Applications

Transformer Switching

Load Center Applications

High Current Disconnects

Industrial Process Control

Critical Power Systems

Manufacturing Equipment

Need Single Throw Switch Solutions?

Contact Gross Automation for expert consultation on single throw bolted pressure contact switches for your application.

Gross Automation Logo

Ph: 262-252-1600
Fx: 262-252-1616
EMAIL

© 2025 Gross Automation, LLC - All Rights Reserved

HOURS
Mon-Fri: 8-5 CT
Sat-Sun: Closed