LA120X3-1 Fuses - LA120X Series - Very Fast-Acting Semiconductor Fuse

Part Number: LA120X3-1

LA120x Series Semiconductor Fuse Data Sheet
LA120X.pdf
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Last Uploaded: December 05, 2006

LA120X Series - Very Fast-Acting Semiconductor Fuse

Littelfuse’s LA120X semiconductor protection fuses, rated � through 30A, 1200 VAC are popular for use in traction drive auxiliary circuits and similar applications. LA120X fuses are also suitable for use on 1000VDC auxiliary circuits with low time constants.

Features:

1000 Volt DC rating for a wide range of circuits.
Compact size fits in where competitive sizes will not fit.

Applications

Protection of traction drive auxiliary circuits, etc.

Help	Property	Value
It is established by Littelfuse as a value of current which the fuse, fuseholder, fuse clip or other fuse accessory can carry, based on a controlled set of test conditions. Close Info	Ampere Rating (A)	3
The maximum RMS AC voltage and/or the maximum DC voltage at which the fuse is designed to operate. For example, fuses rated at 600 volts and below may be applied at any voltage less than their rating. There is no rule for applying AC fuses in DC circuits such as applying the fuse at half its AC voltage rating. Fuses used on DC circuits must have DC ratings. Close Info	VDC (V)	1000
The maximum rms AC voltage and/or the maximum DC voltage at which the fuse is designed to operate. For example, fuses rated at 600 volts and below may be applied at any voltage less than their rating. There is no rule for applying AC fuses in DC circuits such as applying the fuse at half its AC voltage rating. Fuses used on DC circuits must have DC ratings. Close Info	VAC (V)	1200
Refers to how rapidly the fuse responds to various current overloads. Fuse characteristics can be classified into three general categories: very fast-acting, fast-acting or Slo-Blo® (time delay)fuse. The distinguishing feature of Slo-Blo fuses is that these fuses have additional thermal inertia (surge withstand) designed to tolerate normal initial or start-up overload pulse. Close Info	Opening	Very Fast-Acting (FF)
Close Info	Interrupt Rating	100000A@1000VDC
Close Info	Interrupt Rating	100000A@1200VAC

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	Mexico/Piedras Negras ISO 14001 Littelfuse_Mexico_PiedrasNegras_ISO14001.pdf (37 K)
	Mexico/Piedras Negras ISO/TS 16949 LittelfusePiedrasNegrasTS16949-2009.pdf (70 K)

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