Product Overview

The TB345-05STL1 is an upgraded dual-row terminal block from EATON, where "STL1" stands for Stainless Steel screws + Locking Type 1 design. With 5 poles, 600V/45A rating, it suits harsh environments like marine engineering, chemical plants, and food processing lines through material and structural enhancements.

Key Features

• 304 Stainless Steel Screws：Resist 1000-hour salt spray test (5% NaCl), 5x more corrosion-resistant than zinc-plated steel.
• L1 Locking Mechanism：Integrated metal latches on both sides pass 15G vibration test (50~3000Hz), reducing loosening risk by 90%.
• Food-Grade Certification：Base made of FDA-compliant UL 94V0 thermoplastic, meeting sanitary requirements for food equipment.
• Dual-Coated Terminals：Nickel + silver plating reduces contact resistance by 20%, ensuring ≤25K temperature rise at 45A.
• Quick-Mount Rail System：Compatible with DRL35MMHI/L DIN-Rail, one-touch release clips boost installation efficiency by 40%.

Technical Specifications

Item	Details
Manufacturer	EATON (BUSSMANN SERIES)
Model	TB345-05STL1
Rated Voltage	600V
Rated Current	45A (continuous)/55A (1-hour peak)
Center Spacing	0.562" (14mm)
Wire Range (flex)	8~22 AWG (Cu), 6~10 AWG (Al with adapter)
Screw Type	#10-32 phil-slot (304 stainless steel)
Torque Requirement	8 AWG: 28 in-lbs; 10~14 AWG: 24 in-lbs (latch compensates torque loss)
Materials	Base: FDA-compliant thermoplastic; Terminals: Ni+Ag-plated brass; Screws: 304 SS
Operating Temperature	-40°C~150°C (+20°C vs TB345-05)
Dielectric Strength	8000V
Protection Class	IP65 (with waterproof cover)

Typical Applications

• Marine Equipment：Stainless steel resists saltwater corrosion in ship power systems.
• Chemical Production：FDA materials prevent contamination, locking design ensures safety in hazardous environments.
• Food Processing Machinery：Sanitary-compliant for direct use in dough mixers and filling equipment.
• Wind Turbines：150°C heat resistance suits nacelle environments, vibration-proof structure reduces maintenance.
• Medical Sterilization Equipment：Withstands autoclaving (134°C, 30min) for GMP-compliant workshops.

Why Choose TB345-05STL1?

• Extreme Environment Resistance：Stainless steel + latch design boosts reliability by 80% in complex environments.
• Low Maintenance：10-year maintenance-free warranty reduces inspection workload by 75%.
• EATON Professional Certifications：ISO 13485 (medical) and ISO 22000 (food) certified for high-end markets.
• Thermal Optimization：Dual-coated terminals run 12°C cooler than TB345-05 at 45A.
• Accessory Compatibility：Works with TB345 series parts, OJ6-STL jumpers support live plugging.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic
components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.