Allis-Chalmers TLS Kit
A precision replacement kit for Allis-Chalmers TLS load tap changers (LTCs), machined to OEM dimensional specifications.
- OEMAllis-Chalmers
- Model / SeriesTLS
- Part typeKit
- EquipmentLoad tap changers (LTCs)
- AvailabilityBuilt to order / lead time confirmed at quote
- Internal ref.LTC-AC-TLS-KIT
Overview
contact kit for the Allis-Chalmers TLS load tap changer, stationary, moving, finger, reversing, and collector contacts.
About the Allis-Chalmers TLS
The Allis-Chalmers TLS is a reactor-type load tap changer sharing design lineage with the TLG but with a different contact geometry, hub assembly, and collector ring arrangement. Like the TLG, it uses a selector and reversing switch to regulate transformer secondary voltage under load without interrupting the circuit. The TLS is found in utility distribution transformers, and its collector ring finger contacts and main moving arm assembly are the components that see the most wear at normal maintenance intervals.
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
Lead time is confirmed at quote; 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.
What’s in the kit
Every part below ships in the kit, listed with its OEM number and the quantity per kit. Need only certain parts or quantities? Tell us and we will tailor the quote.
| Ref | Part | Qty | Action |
|---|---|---|---|
| A | Main Stationary Contact (OEM 5352) LTCACTL403 | 24 | |
| B | Neutral Stationary Contact (OEM 5353) LTCACTL407 | 3 | |
| C | Collector Hub Phase "C" (OEM 4716) LTCACTL408C | 1 | |
| D | Collector Hub Phase "A-B" (OEM 4716A) LTCACTL408A | 2 | |
| E | Collector Ring (OEM 5356) LTCACTL400 | 3 | |
| F | Main Moving Contact (OEM 5358B) LTCACTL401 | 6 | |
| G | Reversing Switch Finger Contact LTCACTL404 | 6 | |
| H | Reversing Switch Stationary RH (OEM 4713) LTCACTL406R | 3 | |
| I | Reversing Switch Stationary LH (OEM 4714) LTCACTL406L | 3 | |
| J | Collector Ring Finger Contact (OEM 5359) LTCACTL402 | 3 | |
| K | Collector Hub Finger Contact (OEM 5360B) LTCACTL405 | 3 |
Worn but not scrap? Send us your used contacts. We recondition them to OEM dimension, or machine a new set from your sample, and return them tested and documented. Often cheaper and faster than buying new.
Send the model number, asset tag, or just a description, we’ll reply with pricing and lead time within one business day.
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