Ametek TLT 8-690

The Ametek TLT 8-690 is a transmission line transformer (balun) engineered for unbalanced-to-balanced signal conversion in EFT/Burst testing applications. Designed for line-to-line transient immunity testing on industrial equipment and rotating machinery, it delivers precise signal integrity under high-voltage transient conditions while maintaining ANSI/IEEE C37.90 compliance.

– Technical Specifications

• Product Type: Transmission Line Transformer (Balun)
• Maximum Test Voltage: 8 kV, 690 V (p-p)
• DC Voltage Rating: Up to 1000 V
• Coupling Capacitor: 66 nF per line
• Input Connectors: Coaxial High Voltage female connector (SHV); GND plug Banana (4 mm)
• Output Connectors: 2 × Banana plug (4 mm)
• Earth Connector: M6 screws (4 cutout)
• Housing Dimensions: 153 mm (L) × 80 mm (W) × 53 mm (H)
• Groundplate Dimensions: 220 mm (L) × 80 mm (W) × 2 mm (H)
• Weight: 850 g

– Key Features

• Optimized for EFT/Burst testing on three-phase systems and industrial apparatus
• Compact modular form factor with integrated ground plane for EMI suppression
• Dual 4 mm banana outputs enable simultaneous two-phase testing
• Rated for continuous DC operation to 1000 V with transient peaks to 8 kV

– Typical Applications

• Line-to-line EFT/Burst immunity testing of AC motors and variable frequency drives
• Three-phase equipment transient response characterization
• Industrial control system electromagnetic hardening validation

– Compatibility & Integration

The TLT 8-690 integrates with AMETEK CTS (formerly EM TEST) EFT generators including Compact NX series, NX5/NX7 series, UCS 500 series, and NSG 3000A-series platforms. Standard accessories include 1.0 m coaxial cable, dual banana test leads, calibration adapter for KW 50/KW 1000 load resistors, and SHV adapter cable for UCS 500 series compatibility.