Repeater Compositions / ISDB-T Digital TV Broadcasting Relay Systems

Product code:6562AA

Outline

This container is DC MCCB board for the relay station transmission equipment. This mounts 4 MCCB for DC. When the load current that exceeds the specification flows to this container, MCCB operates the determination road, and protects the feeding power equipment.

Structure

JIS rack mounting type
External size: 480(W) x 99(H) x 450(D)mm (Excluding protrusions)
Mass: 11kg or less

Specification

Input	MCCB	ICS25-2R
	Flam current	30A
	Input voltage	DC+48V(TB1:8 poles M5)
	Output voltage	DC+48V(TB2:16 poles M4 TB3:16 poles M4)
	Opening and shutting permissible voltage	10,000 times or more (Rating current Energizing 6000times+No-load 4000times)
Use conditions		Continuous use
Environmental requirements	Temperature	-10°C to +45°C (Range for in-spec)
		-20°C to +60°C (Range for spec restorable)
	Humidity	45% to 90%RH (Without dew.)

Others

Alarm monitoring item: MCCB trip - SW OFF

Function

This equipment mounts four MCCB, “ON/OFF" in each method is possible from the front side. When 125% of the current rating of MCCB is exceeded, MCCB trips and the interception operation are done. When the overloaded status is improved and it becomes normal, the lever of MCCB is made "ON" by hand power.
Moreover, it outputs it bringing the state of "Trip" and "SW OFF" from each MCCB collectively from the terminal stand for the alarm output.