UPL1-1-52F-752, Airpax, Magnetic circuit breaker, 1 pole, series, DC long delay with inertial delay, rated 7.5 amps The APL/UPL magnetic circuit protector provides reliable, low-cost power switching, circuit protection and circuit control. The APL/UPL line offers many configurations including series, shunt and relay with a choice of delays and ratings. Check data sheet for exact specifications. Other breakers in this same series are available-ask us !