The IG4TM Telephone Line Protector in a Type 1 Indoor enclosure is used for four independent lines. The unit has balanced protection between tip, ring and ground for each line. Terminal block type connectors allow installation without special tools. The unit is designed for surface mounting.

  • Model Overview
  • Specifications
  • Accessories
  • Resources

  • Provides protection for 4 lines
  • Type 1 Enclosure
  • Tip to ground, tip to ring and ring to ground modes
  • Gas tube protection 350 VDC breakdown
  • UL497A
Product Ratings
Application: phone/modem/DSL
Lines: up to 4
Gauge: #24-#16 AWG
Wire Configuration: 8 wire
DC Breakdown Voltage: 350 VDC
Location: Outdoor

Spare Coax Cable Protection Module

1 Line

New Product Highlights


The Intermatic® line of occupancy sensors are engineered and tested for long-lasting performance. In-Wall and Ceiling Mount sensors in both PIR (infrared) and dual (PIR/ultrasonic) technologies can monitor virtually any area within a building, providing solutions for any retrofit or new construction project. They utilize zero-crossing technology to suppress inrush current impact, supplying reliable ON/OFF sensing no matter the lighting technology.


The Intermatic® ICUBE™ Adaptive Defrost Module cuts defrost cycles--and utility bills--for the food service industry. Designed by Grässlin by Intermatic for commercial walk-in coolers and freezers, the smart-sensing technology behind the ICUBE™ continuously monitors evaporator coil temperatures and only allows defrosting when necessary at the next programmed timer interval.

Surge Protective Device Group Shot

The Intermatic® Surge Protective Device with Consumable Modules covers 100% of a home’s big investment equipment, from appliances and computers, to HVAC equipment and TVs. The Surge Protective Device uses replaceable Consumable Modules that allows homeowners to easily and safely replace a module when the built-in LED light indicates it has been compromised.