McGraw-Edison 550 CS Kit
A precision replacement kit for McGraw-Edison 550 CS load tap changers (LTCs), machined to OEM dimensional specifications. Material certification available on request.
- OEMMcGraw-Edison
- Model / Series550 CS
- Part typeKit
- EquipmentLoad tap changers (LTCs)
- DocumentationMaterial certification on request
- AvailabilityBuilt to order / short lead times
- Internal ref.LTC-ME-550CS-KIT
Overview
Contact kit for the McGraw-Edison 550 CS LTC — main moving, 2- and 3-finger reversing moving, main and reversing stationary, neutral, and locking tab.
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 LTCME55301 | 6 | |
| B | Reversing Moving Contact (2 Finger) LTCME55304A | 3 | |
| C | Reversing Moving Contact (3 Finger) LTCME55304B | 3 | |
| D | Main Stationary Contact LTCME55302 | 54 | |
| E | Reversing Stationary Contact LTCME55305 | 3 | |
| F | Neutral Stationary Contact LTCME55306 | 3 | |
| G | Locking Tab LTCME55303 | 36 |
Send the model number, asset tag, or just a description — we’ll reply with pricing and lead time within one business day.