SPI4000 smart primary injection test system

Primary injection test set for protective relay equipment and circuit breakers
The SPI4000 is a high-current primary injection tester for circuit breakers and relays up to 4000 Amps - and it’s NEMA AB-4 compliant.
Space-efficient power for testing even in the tightest quarters
High current capacity
Exceptional mobility, guaranteeing your testing equipment is ready and onsite when you require it
Effortless precision with automatic zero crossing