McGraw-Edison 550 BLS Full Kit
A precision replacement kit for McGraw-Edison 550 BLS load tap changers (LTCs), machined to OEM dimensional specifications. Material certification available on request.
- OEMMcGraw-Edison
- Model / Series550 BLS
- Part typeKit
- EquipmentLoad tap changers (LTCs)
- DocumentationMaterial certification on request
- AvailabilityBuilt to order / short lead times
- Internal ref.LTC-ME-550BLS-FULL-KIT
Overview
Full contact kit for the McGraw-Edison 550 BLS LTC — main and reversing contacts, locking tabs, drive shafts (left, right, input).
Why replace worn LTC contacts
Worn or burned tap-changer contacts raise resistance, run hot, and can lead to tap-changer failure. Precision replacements restore reliable switching and extend the service life of the LTC.
Stock, lead time & reverse engineering
Common items are produced on short lead times; discontinued or hard-to-find parts are reverse-engineered from a sample, a drawing, or a model number. Based in Palm Harbor, FL, Southern Switch & Contacts manufactures and ships replacement parts to utilities nationwide, and has served the industry since 1982.
Each part below corresponds to a labeled component on the kit drawing. Click View to open the part’s standalone page, or + Quote to add it to your quote without leaving this page.
| Ref | Part | Qty | Action |
|---|---|---|---|
| A | Main Moving Contact Assembly LTCME55200 | 6 | |
| B | Reversing Moving Contact Assembly LTCME55203 | 3 | |
| C | Reversing Stationary Contact LTCME55204 | 6 | |
| D | Main Stationary Contact LTCME55201 | 54 | |
| E | Reversing Stationary Neutral Contact LTCME55205 | 3 | |
| F | Right Hand Drive Shaft LTCME55207 | 1 | |
| G | Input Drive Shaft LTCME55208 | 1 | |
| H | Reversing Switch Locking Tab LTCME55206 | 6 | |
| I | Selector Switch Locking Tab LTCME55202 | 30 | |
| J | Left Hand Drive Shaft LTCME55209 | 1 |
Send the model number, asset tag, or just a description — we’ll reply with pricing and lead time within one business day.