Miniature circuit-breakers 3-pole, D-Char, 480 V/2 A AC, 10 kA, UL 1077

The function of miniature circuit-breakers is to automatically cut off circuits to protect cables and connected devices. After being cut off, they can be switched back on manually without fuse inserts, for example, having to be replaced. All of our miniature circuit-breakers have a trip-free mechanism that guarantees reliable switch-off, even for mechanically blocked switch toggles for example. In North America, and also some other countries, production standards are much stricter than in Europe. The UL standards are used in these countries. UL (Underwriters Laboratories Inc.(R)) is one of the leading organisations for testing and certification in the field of product safety. Variant DLS 7 is certified to UL 1077 and thus satisfies the strict requirements for the US market. Switching devices certified to UL 1077 are permitted as components, in other words additional protective switches for wiring performed at the factory. The UL approval can be seen by the UR label for „Recognized Component“. The approval permits the switch to be installed into controllers that are project managed, wired and tested by specially trained personnel at the factory. Switching devices with D characteristic are suited primarily to power circuits with high switch-on and peak currents, such as from transformers and motors. UL-specific tripping characteristics permit system design in line with the American model (NEC). Properties: Connector for load and mains either from the top or bottom; General-purpose terminals for ring, fork and pin-type cable lugs; Strain-relief clamps with wide clamp cross section area for rail and cable wiring on both connector sides; Large, folding label window for secure hold and protection of the label; Use of conventional wiring rails; ON/OFF switch position indicator on the switch toggle; Switch toggle can be sealed in the On and Off switch positions; Accessories can be retro-fitted; Free of charge labelling software; Mounting: quick fastening to mounting rail; any installation position; Application areas: For control transformers; For test and medical equipment; For copiers and printers; For computers, PLCs, data and signal systems; For power supplies and UPS; Hints: DLS 7 are approved as component (recognised component). When they are used, the authorisation conditions must be observed in accordance with UL 1077.; Function: overload protection; The following functions are not covered by components as laid down in standard UL 1077: disconnection, switching. short-circuit protection.;