1492-H4 | Allen-Bradley Finger-Safe Single Circuit Fuse Block, Neon Indicator

The 1492-H4 is a fuse holder from Allen-Bradley’s 1492 series. It is designed to securely hold fuses in place within electrical circuits for protection against overloads and short circuits. The fuse holder accommodates fuses of a specific size and rating, providing a safe and reliable method for fuse installation and replacement.

The 1492-H4 fuse holder is designed to hold 4 x 10 mm or 5 x 20 mm fuses, which are commonly used in industrial circuits. Ensure that the fuse used is within the recommended size and voltage rating to maintain proper protection.

Wiring the 1492-H4 fuse holder is straightforward:

1. Power connections: Connect the incoming and outgoing wires to the terminals of the fuse holder. Ensure proper wire size and tight connections to avoid any loose contacts.
2. Fuse placement: Insert the fuse into the fuse holder, ensuring it is properly seated and making contact with the terminals.
3. Secure the fuse holder: If the fuse holder is mounted on a DIN rail or other surface, ensure it is securely installed to prevent vibration or movement.

Always follow the wiring diagram in the user manual for detailed instructions.

Yes, the 1492-H4 fuse holder can be used for both AC and DC circuits, as long as the voltage and current ratings are within the specified limits (600V AC/DC and 20A). Ensure the fuse selected is appropriate for the specific type of circuit (AC or DC).

To replace a fuse in the 1492-H4 fuse holder:

1. Power down the circuit to ensure safety.
2. Remove the old fuse from the holder. Depending on the design, the fuse may either slide out or may need to be gently pried out.
3. Insert the new fuse into the holder, ensuring it is the correct size and rating.
4. Re-secure the fuse holder, ensuring it is properly installed and that there are no loose connections.

Always double-check the fuse rating to ensure it matches the circuit requirements.