AISFT
AISIKAI
IEC 60947-3
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The AISFT Series Modular Changeover Switch is a new-generation PC Class miniature manual transfer switch, designed for reliable switching between primary and backup power sources. Rated for Utilization Category AC-22A, it features a compact modular design and can be DIN-rail mounted together with the ASKB Series Miniature Circuit Breakers (MCBs) to form a complete main/standby power distribution system.
Complying with the isolation requirements of IEC 60947-3, the AISFT Series provides safe and dependable operation in emergency power applications. It is suitable for AC systems up to 400V and rated currents up to 125A, making it an ideal solution for installations where space is limited, such as residential, commercial, and light industrial emergency power systems.
PC Class miniature manual transfer switch
Utilization Category: AC-22A
Compact modular design for DIN-rail installation
Compatible with AISIKAI ASKB Series MCBs
Integrated isolation function compliant with IEC 60947-3
Rated voltage up to 400V AC
Rated current up to 125A
Ideal for compact emergency power supply applications
Type Designation
Company Code | Product Code: | No. of Poles: | Rated Current: |
Modular Changeover Switches | 1: 1P 2: 2P 3: 3P 4: 4P | 16:16A 32:32A 125:125A |
General Information
Base Temperature | 30 |
Working Environment Temperature | -35 - +70 |
Storage Environment Temperature | -35 - +80 |
Applicable Altitude | 2000 |
Shell Flame Retardant Grade | V0 |
Incoming Wiring Method | Top or Bottom |
Installation Method | TH35-7.5 type standard guide rail |
Contamination Level | 3 |
Protection Class | IP208(Direct Install) |
Technical Parameters
Product Model | AISFT SERIES | ||
rated current(A) | 16A,20A,25A | 50A,63A | |
rated voltage(V) | 230/400 | 230/400 | |
rated frequency(Hz) | 50/60Hz | 50/60Hz | |
poles | 1P,2P,3P,4P | 1P,2P,3P,4P | |
mechanical life (times) | 10000 | 10000 | |
electrical life(times) | 6000 | 6000 | |
rated insulation voltage Ui(V) | 690 | 690 | |
rated impulse withstand voltage(1.2/50)(kV) | 6 | 6 | |
anti-vibration(IEC/EN60068-2-6) | no significant | no significant | |
wiring | terminal block form | column type | column type |
minimum connectable | 1(mm2) | 6(mm2) | |
maximum connectable | 16(mm2) | 50(mm2) | |
standard connection torque | 1.2(N-m) | 2.5(N-m) | |
maximum torque | 2(N-m) | 3(N-m) | |
wire Insertion Depth | 13(mm) | 20(mm) | |
Installation Dimensions
16 -- 63 A |
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50 -- 125A |
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Wiring Schematic
1P |
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2P |
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3P |
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4P |
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Shape Introduction
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The Electronic MCCB with Built-in Electric Motorized Operating Mechanism solves the long-term reliability problems of traditional external motorized mechanisms, providing a more stable transmission.
The Load Isolation Switches (load disconnector) in this project provide visible isolation for maintenance, ensuring safe disconnection of the 5kV circuits during inspections and repairs to protect personnel and equipment.
Project Background:Vietnam's coastal ports and industrial parks are rapidly expanding. Due to frequent typhoons and rainy seasons, power interruptions are common. Many ports and cold chain warehouses require backup diesel generators and Automatic Transfer Switches (ATS) to ensure continuous operatio
