Altech provides a broad offering of miniature circuit breakers, including the UL489, UL508 and UL1077 models.
The UL489 series, offering outstanding electrical ratings, is ideal for branch-circuit protection. These current-limiting circuit breakers act extremely quickly to reduce a short-circuit current to a safe level, limiting its potential harmful energy. The current-limiting capability of the UL489 series has been verified by independent UL tests.
The UL508 manual motor-controller/supplementary protector protects various loads, including single-phase motors and any components in the control circuit of a UL508A industrial-control panel.
The supplementary protectors, tested according to UL1077, are suited to any control circuit.
The UL489 miniature moulded-case circuit breakers come in AC and DC versions. The AC version is dual-voltage rated from 0.3A to 63A at 240V AC, and from 0.3A to 32A at 480y/277V AC.
The DC version is rated from 0.3A to 63A at 125V DC (one-pole) and at 250V DC (two- pole). Combining the AC voltages in one design, along with the unique dual-terminal design for accepting standard wire and ring-tongue terminal wire, provides flexibility and reduces stocking requirements.
The unique housing characteristics are featured in each of the UL489, UL508 and UL1077 versions and make the circuit-protection element of a UL508A panel look uniform and clean.
Altech also offers IEC-style busbars which carry UL recognition. The busbars are available in AC and DC specifications to accommodate the voltages in the miniature circuit-breaker series.
- Terminal barriers are serviceable
- Individual part numbers printed on each breaker
- Clear protective cover over marking area
- Branch circuits
- Control circuits