CDB6iTC Standard Miniature Circuit Breaker

CDB6iTC Standard Miniature Circuit Breaker

The CDB6iTC series standard miniature circuit breaker is a reliable protection device designed for low-voltage AC and DC distribution systems. It provides overload protection, short circuit protection, and electrical isolation functions to ensure safe and stable operation of electrical circuits.

The product supports multiple voltage applications. The 1P version is suitable for AC230/400V and DC60V systems, the 1P+N version is designed for AC230V systems, and the 2P, 3P, 3P+N, and 4P versions are suitable for AC400V systems.

The CDB6iTC series offers a rated current range from 1A to 63A and provides multiple pole configurations including 1P, 1P+N, 2P, 3P, 3P+N, and 4P, allowing flexible selection for different electrical distribution applications.

The circuit breaker adopts thermal-magnetic tripping technology and supports B, C, and D tripping curves, meeting the protection requirements of lighting circuits, general loads, and equipment with high starting currents.

With a compact structure, the circuit breaker can be installed on standard 35mm DIN rails. It features U-type terminals, supports top and bottom wiring, and allows a maximum cable connection capacity of 25mm² for convenient installation and maintenance.

The CDB6iTC series is widely used in residential distribution boards, commercial electrical systems, industrial control cabinets, DC control power systems, and low-voltage terminal protection applications.

Product Features

• Provides overload protection, short circuit protection, and isolation function
• Supports both AC and DC voltage applications
• Rated current range from 1A to 63A
• Multiple pole configurations available
• Supports B, C, and D tripping curves
• Standard 35mm DIN rail mounting
• Supports top and bottom wiring
• Supports electrical and mechanical accessories
• Compact design with flexible installation

Applications

• Residential low-voltage distribution systems
• Commercial building electrical systems
• Industrial control cabinets
• DC control power systems
• Terminal electrical protection systems

Technical Parameters

Parameter	Value	Unit
Product Series	CDB6iTC	-
Product Type	Standard Miniature Circuit Breaker	-
Rated Operating Voltage Ue	1P: AC230/400, DC60; 1P+N: AC230; 2P/3P/3P+N/4P: AC400	V
Rated Current In	1~63	A
Rated Frequency	50/60	Hz
Number of Poles	1P, 1P+N, 2P, 3P, 3P+N, 4P	-
Breaking Capacity	6	kA
Rated Insulation Voltage Ui	500	V
Maximum Operating Voltage Ubmax	1P/1P+N: AC230/400; 2P/3P/4P/3P+N: AC400; 1P: DC60; 2P: DC125	V
Rated Short-Circuit Capacity Icn	6	kA
Rated Impulse Withstand Voltage Uimp	4	kV
Dielectric Test Voltage	2kV (50/60Hz, 1 minute)	-
Utilization Category	A	-
Isolation Function	Available	-
Pollution Degree	2	-
Tripping Type	Thermal Magnetic Release	-
Product Standard	GB/T 14048.2	-
Certifications	CCC, CE, RoHS	-

Tripping Characteristics

Type	Characteristic
B Curve	AC: 4In, DC: 5In
C Curve	AC: 8In, DC: 10In
D Curve	AC: 12In, DC: 15In

Mechanical Characteristics

Parameter	Value	Unit
Handle Color	Red	-
ON/OFF Indicator	ON-OFF position indication	-
Mechanical Endurance	20000	Operations
Electrical Endurance	10000	Operations
Protection Degree	IP40 inside distribution box; IP20 direct installation	-
Mechanical Shock Resistance	30g, 3 impacts, duration 11ms	-
Vibration Resistance	IEC/EN 60068-2-6	-
Damp Heat Resistance	Category 2, 28-day cycle	-
Reference Ambient Temperature	30	°C
Operating Temperature	-35~70	°C
Storage Temperature	-40~70	°C

Installation Characteristics

Parameter	Value	Unit
Terminal Type	U-type terminal	-
Maximum Cable Capacity	25	mm²
Maximum Tightening Torque	2.5	N·m
Recommended Tool	Phillips screwdriver or flat screwdriver	-
Installation Method	Standard 35mm DIN rail mounting	-
Wiring Direction	Top and bottom wiring available	-