Allis-Chalmers TLH-21 Complete Kit
A precision replacement kit for Allis-Chalmers TLH-21 load tap changers (LTCs), machined to OEM dimensional specifications. Material certification available on request.
- OEMAllis-Chalmers
- Model / SeriesTLH-21
- Part typeKit
- EquipmentLoad tap changers (LTCs)
- DocumentationMaterial certification on request
- AvailabilityBuilt to order / short lead times
- Internal ref.LTCACTL-TLH21-KIT
Overview
Complete kit of all replacement contacts and hardware for refurbishing the Allis-Chalmers TLH-21 load tap changer — main and reversing contacts, collector ring and hub assemblies, finger contacts, and locking tabs. 117 pieces total per kit.
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 Stationary Contact LTCACTL300 | — | |
| B | Main Moving Contact Assembly LTCACTL301 | — | |
| C | Reversing Moving Contact Assembly LTCACTL302 | — | |
| D | Reversing Stationary Contact LTCACTL303 | — | |
| E | Locking Tab LTCACTL304 | — | |
| F | Collector Ring LTCACTL305 | — | |
| G | Collector Ring Contact Finger Assembly LTCACTL306 | — | |
| H | Collector Hub LTCACTL307 | — | |
| I | Collector Hub Contact Finger Assembly LTCACTL308 | — |
Send the model number, asset tag, or just a description — we’ll reply with pricing and lead time within one business day.