Overview
The Thomas & Betts TBM8S compression crimper is a professional-grade manual hand tool for installing solderless compression connectors on electrical cable. This ratcheting crimper accommodates copper cable from 8 AWG to 500 kcmil and aluminum cable from 10 AWG to 350 kcmil, making it suitable for a wide range of industrial electrical and control system applications. The TBM8S is equipped with the Shure-Stake® mechanism, which locks the tool after crimping begins and prevents reopening until the compression cycle completes—ensuring consistent, correct crimps every time.
Key Features
- Shure-Stake® Ratchet Mechanism: Prevents tool reopening mid-crimp, ensuring uniform compression depth and quality every time.
- Eight Color-Coded Die Sets: Multi-nested dies accommodate the full wire range with automatic die code embossment for easy installation and inspection verification.
- Fiberglass Handles with Grips: Ergonomic design reduces hand fatigue during extended use.
- Cable Cleaning Brush: Integrated brush helps clean wire insulation before crimping.
- Portable Carrying Case: Durable plastic case protects the tool and dies during transport and storage.
- UL and CSA Approved: Meets North American safety and performance standards.
Technical Specifications
- Copper Wire Capacity: 8 AWG to 500 kcmil
- Aluminum Wire Capacity: 10 AWG to 350 kcmil
- Tool Type: Manual ratcheting hand crimper
- Crimping Mechanism: Shure-Stake® (prevents reopening mid-cycle)
- Number of Dies: Eight multi-nested color-coded die sets
- Overall Length: 26 inches (650 mm)
- Weight: 20.5 pounds (9.3 kg)
- Finish/Material: Steel jaws and handles with fiberglass grips
- Storage: Plastic carrying case included
- Certifications: UL and CSA approved
Typical Applications
The Thomas & Betts TBM8S is widely used in electrical construction, maintenance, and industrial automation applications including:
- Installation of copper and aluminum compression lugs on power distribution cables
- Field termination of splice connectors in motor control circuits
- Cable splicing for panel upgrades and retrofits in electrical control systems
- Grounding and bonding lug installation on industrial machinery
- Maintenance and repair of high-voltage and low-voltage electrical connections
Compatibility & Replacements
Compatible With
- Thomas & Betts Color-Keyed copper tube lugs and splices
- Thomas & Betts Color-Keyed aluminum lugs and connectors
- C-Tap connectors (12 AWG – 3/0 AWG)
- Standard industry-compatible compression terminals and lugs
Replaces / Drop-In Replacement For
- Earlier Thomas & Betts TBM8 model (TBM8S includes Shure-Stake mechanism; TBM8 does not)
- Manual compression crimpers in the 8 AWG–500 kcmil copper range
Works With
- Thomas & Betts die kits and replacement dies (product references 13461, 13462, 13463, 13464, 13465, 13466, 13467, 13468)
- Standard compression connectors and lugs from major electrical distributors
- Compatible with both field and bench work environments
