Integrated LED Status Indicator
Instantly identifies circuit status with high-visibility LED — minimizing downtime and simplifying troubleshooting.
Tool-Free Push-in Connection
Save installation time and reduce human error with our direct plug-in technology — designed for both rigid and flexible wires.
Space-Saving, Front-Wiring Design
Ideal for dense cabinet layouts, allowing organized, accessible wiring even in confined environments.
Certified Quality & Safety
Complies with CE, RoHS standards — ensuring dependable performance in global markets.
DIN Rail Mountable (NS35/7.5)
Compatible with standard mounting systems for easy integration.
Imagine a high-speed beverage bottling line running 24/7 — thousands of bottles filled and packed every hour. In the control room, PTTB4-HESI LED terminal blocks glow softly in different sections of the panel, each LED quietly signaling the health of its circuit.
A maintenance technician walks by, immediately spots a flickering red LED — a signal relay issue in Station 3. Within seconds, the root cause is located, wiring checked, and power flow restored.
All without touching a multimeter.
✅ Whether it’s industrial automation, transportation systems, energy distribution, or PLC logic control, the PTTB4-HESI LED makes your connections not only secure, but also smart.
Automated manufacturing control panels
Smart buildings and energy systems
PLC I/O terminal management
Traffic control boxes
HVAC and environmental monitoring units