9.5mm PCB Screw Terminal Block — 0.37" Pitch High-Voltage Industrial Connector
9.5mm (0.37") PCB Screw Terminal Blocks — Maximum Creepage Pitch for High-Voltage Industrial Applications
The 9.5mm (0.37") pitch PCB screw terminal block represents the large-pitch end of the PCB-mount terminal block spectrum, providing the maximum creepage and clearance distances available in a through-hole PCB terminal block format. This pitch is specified for high-voltage industrial equipment, three-phase power connections, and applications subject to IEC 60664 pollution degree 3 where maximum electrical isolation between adjacent conductors is required. The 9.5mm pitch accommodates heavy-gauge wire and provides robust mechanical retention for vibration-prone industrial environments.
Key Technical Specifications
- Pitch: 9.5mm (0.374")
- Wire range: 22–10AWG (0.5–4.0mm²)
- Contact material: Tin-plated copper alloy
- Insulator material: PA66 (UL94V-0)
- Mounting: Through-hole PCB, spliceable
- Certifications: CE, RoHS
Ideal Applications
- High-voltage three-phase motor controller power terminals
- Industrial UPS and power conditioning equipment PCB connections
- High-power inverter and converter mains input terminals
- Applications requiring IEC 60664 pollution degree 3 compliance
- Heavy industrial machinery control panel PCB wiring
- Outdoor and harsh-environment industrial equipment
Why Choose Yoeruyo for 9.5mm Terminal Blocks?
9.5mm pitch terminal blocks are a specialty item carried by few distributors. Yoeruyo maintains stock of this pitch for engineers working on high-voltage industrial designs who need a reliable source for both prototyping and production quantities. CE and RoHS certified.
Frequently Asked Questions
Q: Why choose 9.5mm over 7.62mm pitch?
A: The wider 9.5mm pitch provides greater creepage and clearance distances, essential for high-voltage applications above 400V or in pollution degree 3 environments (condensation, conductive dust). For standard 230V/400V industrial applications, 7.62mm is usually sufficient.
Q: What wire gauge does 9.5mm accommodate?
A: Up to 10AWG (4.0mm²), making it suitable for higher-current connections than 7.62mm blocks (which max at 12AWG/2.5mm²).
