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UL 489D OUTLINE
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UL 489D OUTLINE 1st Edition, April 27, 2012 OUTLINE OF INVESTIGATION FOR US NAVAL COMMERCIAL-OFF-THE-SHELF (COTS) DESIGNATED MOLDED-CASE CIRCUIT BREAKERS AND ACCESSORIES FOR USE ON NON-NUCLEAR NAVAL COMBATANT SHIPS
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Description / Abstract:
These requirements cover commercial-off-the-shelf (COTS),
three-pole and four-pole molded-case circuit breakers and
applicable accessories (undervoltage trip release devices, shunt
trip release devices, electrical (motor) operators, auxiliary
switches, plug-in mounting adapter blocks/bases, drawout cassette)
intended for use aboard non-nuclear Naval combatant ships in
electrical assemblies (switchboards and load centers) installed on
shock isolators (mounts).
Successful initial qualification testing and requalification testing of circuit breakers/accessories to the requirements of this Outline shall allow their use in shock-mounted electrical assemblies in non-nuclear Naval combatant ships.
Successful initial qualification testing and requalification testing of circuit breakers/accessories to the requirements of this Outline shall allow their use in shock-mounted electrical assemblies in non-nuclear Naval combatant ships.