OVERVIEW

Official designation: TECO CU-11 (CU Series, Magnetic Contactor)

Role/Application: Three-pole magnetic switching device designed for reliable control of three-phase motors and power loads in industrial circuits, featuring a 220 V AC control coil.

KEY SPECS SUMMARY

Power: Coil 220 V AC, Max operational 690 V

Interfaces / Ports: 3 Main Power, 1 NC auxiliary contact (3A1b)

Indicators: Refer to the latest manufacturer manual.

Operating Temp: Minus 20 degrees C to 55 degrees C

Platform / Compatibility: AC3 11 A / AC1 25 A

Limit: Max motor capacity 5.5 kW (380/415V)

Lifecycle: Direct replacement for TAIAN CN-11

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the physical dimensions of the CU-11 contactor for panel space planning?

A: The overall dimensions are 45 millimeters wide by 70 millimeters high by 82 millimeters deep.

Wiring & Installation:

Q: What is the primary difference in use between the AC3 and AC1 current ratings?

A: AC3 is used for switching three-phase motors, while AC1 is for non-inductive or lightly inductive loads.

Troubleshooting & Compatibility:

Q: What is the expected electrical and mechanical durability of the CU-11 contactor?

A: Electrical durability is 1 million operations, and mechanical durability is 5 million operations.

Replacement & Upgrades:

Q: Which legacy contactor series does the TECO CU-11 model directly replace?

A: The TECO CU-11 model is designed as a direct functional replacement for the TAIAN CN-11 series.