Allen Bradley 1336-F1-SP20B

The 1336-F1-SP20B is a Fuse Bus that belongs to a long list of 1336 Adjustable modules offered by Allen Bradley Rockwell Automation. There have been many revisions of this particular component, including the 1336-F1-SP20B-L1, -L2, -Rev A to –Rev L, -Ser A to –Ser L, and –A to –L etc. The 1336-F1-SP20B Bus Fuse is located on Bus Bar Assembly at the PC Board Mounting Frame. The Fuse Bus F1 to F3 are important components of the 1336 Plus Adjustable Frequency AC Drives from Allen Bradley which is microprocessor controlled, and are designed to control industrial and commercial induction motors. The Allen Bradley 1336-F1-SP20B F Frame without Busbars offers a high voltage up to 600 volts. So, care must be taken while installing this component.

In order to install the 600 volts Fuse Bus, you need to disconnect the drive from the power source, otherwise, there will be serious consequences. After disconnecting the power, make sure that the bus voltage has reached zero volts. It is recommended to check the voltage at the negative bus capacitor and all the bus fuses before dissembling the drive. All the connections and wires should be marked in order to avoid a wrong assembly. To install the Allen Bradley 1336-F1-SP20B, first remove the power and open the mounting frame of the PC board. Check the voltage between the positive and negative DC and make sure both are indicating zero volts. Main control board should also have zero volts. Now detach the bus fuse by removing all the nuts and washers. Install the new bus fuse in reverse order of the removal.