At Portlandia Electric Supply, our Automatic Transfer Switches & Accessories collection ensures reliable, automatic power transfer for homes, businesses, and mission-critical systems. Featuring trusted brands like Generac, Cummins, and Champion, these switches protect essential equipment and reduce downtime by automating source changeovers during outages. 

Premium Switches for Every Power Need

• Cummins RA 100 Amp NSE 240 V 1-Phase (A064G345)
  Compact and affordable, this switch handles up to 100 A and is ideal for small to mid-sized residential or light commercial standby setups. 

• Cummins RA 150 Amp SE 240 V 1-Phase (A066V485)
  Stepped up capacity for larger homes or business backup systems requiring up to 150 A reliability. 

• Cummins RSS200 200 Amp NSE 240 V 1-Phase (A065M393)
  Built for heavy-duty standby applications, this 200 A switch supports larger service panels and more power-hungry systems. 

• Cummins OTEC 400 Amp NSE 208 V 3-Phase (A075F130)
  Designed for industrial or large-scale commercial environments, this switch delivers robust 400 A, 3-phase switching for high-load continuity. 

• Champion Automatic Transfer Switch – 50 Amp, 10-Circuit, NEMA 3R (Model 100950)
  Ideal for small generators or load banking, this compact NEMA 3R unit covers up to 10 circuits for selective coverage. 

• Champion aXis 150 A SE Whole-House ATS (Model 102008)
  A reliable whole-home solution for residential backup, rated at 150 A and built into a durable NEMA 3R enclosure. 

Why Choose This Collection?

• Trusted Brands & High Availability
  Featuring Generac, Cummins, and Champion—top names in power backup and ATS systems. 

• Wide Power Range & Enclosure Ratings
  From 50 A to 400 A and service specs from single-phase to 3-phase, plus weather-protected NEMA enclosures.

• Mission-Critical Reliability
  Automatic switching preserves uptime, ideal for healthcare, data centers, commercial spaces, and residential living.

• Installer-Friendly Stock & Support
  In-stock options, fast delivery, pallet deals, and expert B2B support from Portlandia Electric Supply. 

Quick Comparison

Upgrade your backup strategy with seamless, automatic power transfers—shop the Automatic Transfer Switches & Accessories collection at Portlandia Electric Supply today and keep your power resilient and reliable.