Alarm Fuses and Fuseholders
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Daito's alarm indicator fuses are highly reliable units proven over many years in mission critical equipment such as telephone switching systems and other communication equipment and systems, machine tools and other industrial equipment, and plant controllers in nuclear power and other plants.
The alarm indicator fuse has the following features: |
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1. High reliability |
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2. The plug-in type for easy replacement when the fuse is blown or during maintenance servicing. |
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3. The internal alarm contact in the fuse is triggered when the fuse is blown,
allowing electrical detection of an alarm in this case. (Non alarm-contact
fuses are, also available.)
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4. A blowing indication mechanism allows easy visual confirmation to facilitate checking of blown fuses. |
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5. Fuseholders are compatible with various mounting methods and Daito fuses are also usable in a large variety of equipment. |
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Click here for technical information, including the basic structure of alarm indicator fuses.
Fuses of this type are not reusable. |
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MP/SDP
fuses and fuseholders |
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Features
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Compact alarm indicator fuses with rated voltage of AC/DC125V.
MP and SDP fuses of the fast blow and time lag types respectively are available.
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Main applications
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Used in communication equipments and plant controllers of nuclear power and other plants. |
Approvals
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    [except SDP fuses] |
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EP fuses and fuseholders |
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Features
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Alarm indicator fuses of the normal blow, with rated voltage of AC/DC125V.
Thin, compact(8mm
thick) and large-capacity fuses with 20A maximum rated current.
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Main applications
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Used in communication equipments and other plants. |
Approvals
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HP fuses and fuseholders |
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Features
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Alarm indicator fuses of the normal blow, with rated voltage of AC/DC250V.
Thin, compact(8mm
thick) and high breaking performance of AC/DC250V and 1500A (rated current of 5A or less).
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Main applications
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Used in communication equipments and others. |
Approvals
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GP fuses and fuseholders |
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P/PL/SP fuses and fuseholders |
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Features
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Basic product of alarm indicator fuse with more than 40 years' expert experience in the domain of telecommunication equipment.
Products conforming to BSS (specifications of NHK : Japan Broadcasting Corporation) are also available.
Please also refer to Daito catalog for rated voltage and other detailed
specification. |
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Main applications
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Used in communication equipments, broadcasting equipments and others. |
Approvals
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[P4/PL4/SP4 fuses]  [P4(BSS)/PL4(BSS) fuses] |
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P4L/PL4L/SP4L fuses |
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Features
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P4, PL4 and SP4 fuses with UL approval (Recognition).
P4L and PL4L fuses of the normal blow type and SP4L fuse of the time lag type are available. |
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Main applications
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Used in communication equipments and others. |
Approvals
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P4H fuses |
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Features
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Alarm indicator fuses of the normal blow, with rated voltage of AC/DC250V.
P4 fuses of the non-emission type, featuring no
arc gas blowoff when blown.
High
breaking performance of AC/DC250V and 1500A (rated current of 5A or less).
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Main applications
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Used in communication equipments and others. |
Approvals
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UP/UPK fuses and fuseholders |
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Features
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Alarm indicator fuses of the normal blow, with rated voltage of AC250V/DC125V.
Large capacity up to maximum rated current of 70A (UP700K)
is covered with external dimension of 32x25x23mm (excluding
terminals).
High
breaking performance exceeding AC250V/1500A and DC125V/1000A.
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Main applications
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Protection of power supply units in communication systems. |
Approvals
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[except UPK fuses] |
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