The 1336-SN-SP10A is used for the 1336 Adjustable Frequency AC drive of Allen-Bradley. It is particularly compatible for the 1336 Plus, Plus II, Impact and Force drives. This product is a spare part item that is a Level 2 Assembly component. Three (3) Snubber kits are used for each drive.

This Snubber Printed Circuit Board (PCB) is used for drives with Frame E or those with output power of 150, 200, 250 and X300HP. The snubber board is installed inside within the drive’s main chassis, located on the side of the bridge heatsink in the converter bay.

When replacing this board, power must be removed from the drive and ideally locked out from access. Do not immediately touch the components even if the drive’s power is removed as it has capacitor that store voltage for a short period. Before proceeding, measure the +DC and -DC on the TB1 Terminal Block which may be found in the inverter bay of the drive. Additionally, observe electrostatic discharge preventive measures to prevent damage to other solid-state devices.

To uninstall the snubber board, remove the leads terminated at +06 and -16 stab-on connections. Tag these wires properly according to the terminal where it came from. Uninstall also the leads located at 81, 82 and 83 terminals. Tag the wires accordingly. Remove the drive from the Four (4) plastic stand-offs. Install the new board by aligning the board according to the Four (4) standoff holes and terminating the tagged leads to the appropriate stab-on connections.