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When you need branch circuit protection, Altech offers UL489 Miniature Molded Case Circuit Breakers in both AC and DC voltages. The AC version offers dual voltage rated circuit breakers at 0.2-63A/240VAC and 0.2-32A/480Y/277VAC in 1-3 poles. Altech is the only company that offers a 14kA, 20A C curve single phase breaker at 277V AC. The DC version offers 0.2-63A at 125V (1 pole) and 250V (2 pole).
If your application requires a manual motor controller, Altech is the leading US supplier of UL508 Manual Motor Controllers (MMC). In AC, we offer up to 60A in 1 to 3 poles at 480Y/277VAC. With 6 trip curves, Altech has the largest selection in the industry. This ensures you the selectivity you require for your application designs. Our MMCs have a 10kA short circuit withstand capacity, this is the highest rating in the industry. The AC version is rated up to 60A and is DC rated in 2 poles up to 80VDC.
When your application requires supplemental protection for control circuits and on the load side of branch circuit protectors Altech has solutions. We offer a competitive line of AC Supplementary Protectors, up to 63A, in 1 to 3 poles at 480Y/277VAC with a 10kA short circuit withstand rating.
RCCB Earth Leakage Circuit Breakers
Compact DIN rail mount RCCB Earth Leakage Circuit Breakers detect and interrupt ground faults. They are VDE approved for the European system of protecting people, animals, equipment and property from dangerous line-to-ground and shock hazard currents.
Three Phase Adjustable Trip
Miniature Circuit Breakers/ Manual Motor Controllers
The MA was designed to handle the high inrush loads of 3 phase transformers, power supplies, motors, etc. The MA protects wiring and equipment from damage caused by the three major classes of overcurrent, yet greatly reduces the number of nuisance trips in high starting and inrush current circuits.
Three Phase Adjustable Trip
Economy Manual Motor Controllers
With its high breaking capacity and current limitation the MS Manual Motor Controllers provide optimum protection for electrical motors as well as for other consumer units up to 25 amps. They are equipped with phase failure sensitivity, isolating and main switch functions. 13 ranges cover nominal rated currents from 0.1 up to 25 amps.
Circuit Breaker for Equipment
Electrical Ratings: 0.5-16.0A / 240V AC, 50/60Hz, 32V DC / 24V DC (VDE)
Protection of Control Transformers, UPS, Power strips, Solenoids etc., against damage due to
Square D™ Homeline™ Miniature Circuit Breakers
Homeline miniature circuit breakers for Homeline load centers
Engineered for value, Homeline™ Circuit Breakers are designed for fast installation, reliability, and superior circuit protection. With industry leading innovations and exclusive features, Square D Homeline Circuit Breakers are the smart, safe, reliable choice.
Square D™ QO™ and QOB Miniature Circuit Breakers
QO(B) miniature circuit breakers for QO systems
QO(B) circuit breakers come in plug-on or bolt-on options and a complete range of amperages and interrupting ranges to fit into various QO distribution panels. QO is the “World’s Finest” Industry-leading offer since 1955, with features engineered for faster installation, reliability, and quality.
A comprehensive range to protect against electrical threats, including short circuits, overloads, and earth leakages.
QOU Unit Mount Circuit Breakers
For overcurrent protection and switching on both AC and DC systems
The perfect choice for OEMs thanks to high performances and multiple mounting options