Main Parameters
● Frame Sizes: 1000AF, 1600AF, 2000AF, 2500AF, 3200AF, 4000AF, 6300AF
● Breaking Capacity: N&H
● Rated Current In (A): 400-6300
● Rated Voltage AC Ue (V): 220V/230V/240V/380V/400V/415V/440V/480V/500V/525V/550V/660V/690V
● Number of Poles: 3&4
● Installation Method: Fixed Type & Drawout Type
● Wiring Method: Horizontal Rear Connection, Vertical Rear Connection
Intelligent Trip Units
● iTR326 Type (Basic)
- Basic Functions: Protection functions (L, S, I & G)
● iTR326A Type (Standard)
- Basic Protection Functions
- Basic Measurement Functions
- Auxiliary Functions
● iTR326H Type (Advanced)
- Basic + Advanced Protection Functions
- Multiple Measurement Functions
- Auxiliary Functions
- Special Functions
- Communication
Accessories
● Locking, Interlocking, and Protective Accessories: Open/Close Button Covers, Mechanical Interlocks, Key Locks, Door Interlocks, Safety Shutter Locks
● Indication Accessories: Ready-to-Close Contacts, Three-Position Signal Contacts, Fault Indication Contacts, Auxiliary Contacts
● Operational Accessories: Shunt Trip Coils, Undervoltage Coils, Motorized Operating Mechanisms, Electrical Reset
● Circuit Protection Accessories: N-Phase External Current Transformers, Grounding Transformers, Leakage Current Transformers
● Connection Accessories: Horizontal, Vertical, Extension Busbars, Extended Busbars
Application Scope
● The CDW3 series air circuit breakers have a rated current range of 400A to 6300A and a rated voltage of AC 220V/230V/240V/380V/400V/415V/440V/480V/500V/525V/550V/660V/690V. They are suitable for 50/60Hz AC power systems, primarily used in distribution networks to distribute electrical energy and protect lines and power equipment from overload, undervoltage, short circuit, single-phase grounding, and other faults.
● These breakers are widely applicable in power stations, factories, mines, modern high-rise buildings, and especially in smart building distribution systems.
● Compliance Standards: GB/T14048.2, IEC/EN 60947-2
Normal Operating Conditions
● Ambient Temperature: -5°C to +40°C (certified); 24-hour average temperature ≤ +35°C. Also available for extreme temperatures (-40°C type, M-type controllers).
● Altitude: ≤4000m
● Electromagnetic Environment: Suitable for Environment A
● Pollution Degree: Pollution Degree 3. Installation position must be vertical, with tilt angles ≤5° in all directions.
● Installation Category:
- Main circuit and undervoltage trip unit coils/power transformer primary windings: Category IV
- Auxiliary/control circuits: Category I
● Transportation Requirements: Handle with care; avoid inversion or severe collisions.
General Characteristics
● Number of Poles: 3&4
● Rated Voltage AC Ue (V): 220V/230V/240V/380V/400V/415V/440V/480V/500V/525V/550V/660V/690V
● Rated Insulation Voltage Ui (V): 1000
● Rated Impulse Withstand Voltage Uimp (kV): 12
● Rated Frequency (Hz): 50/60
● Suitable for Isolation: — ×——
● Compliance Standards: GB/T14048.2, IEC 60947-2
● Certification: CCC