Chint NH4-90408 4 Pole, 125A Isolator (NH4-90408)
Chint NH4-90408 4 Pole, 125A Isolator (NH4-90408)
SKU:NH4-90408
Brand: CHINT
In stock
This is pre-order - Available in 7 – 10 days
Couldn't load pickup availability
Product Details
Product Details
The Chint NH4-90408 4 Pole 125A Isolator is a reliable and practical solution for safely isolating electrical circuits in residential, commercial and light industrial environments. Designed to provide secure manual disconnection of power, this isolator helps protect both users and equipment during maintenance, inspection and installation work.
Rated at 125 amps, the NH4-90408 is suitable for higher current applications where dependable isolation is essential. The 4 pole design allows full disconnection across three phases and neutral, making it ideal for use in three phase electrical systems. This ensures a complete break in the power supply, helping to improve safety and compliance with electrical standards.
Manufactured by Chint, a globally recognised brand in electrical protection and control equipment, this isolator is built for durability and consistent performance. It features a tough thermoplastic housing that protects the internal components and provides long-term reliability in busy electrical environments.
The clear on and off switching lever allows for quick visual confirmation of the circuit status, reducing the risk of accidental operation. Its DIN rail mountable design makes installation straightforward in standard distribution boards and consumer units, saving time for installers and maintenance teams.
Designed for 415V AC systems and compatible with 50 to 60Hz operation, the NH4-90408 fits seamlessly into typical UK electrical setups. Whether used in workshops, commercial premises, plant rooms or electrical panels, it offers a simple and effective way to isolate power safely.
This isolator is ideal for electricians, contractors and facilities managers who need a dependable, easy to install solution for circuit isolation. With its strong build quality, clear operation and trusted brand backing, the Chint NH4-90408 delivers peace of mind for everyday electrical work.
Product Specifications
Product Specifications
Electrical Specifications
- Rated Current (Ie): 125A
- Number of Poles: 4P
- Rated Voltage (Ue): 230/400V ~ 240/415V AC
- Rated Frequency: 50/60Hz
- Insulation Voltage (Ui): 500V
- Rated Impulse Withstand Voltage (Uimp): 4,000V
- Rated Short-Time Withstand Current (Icw): 12Ie, 1s
- Rated Short Circuit Making Capacity: 20Ie, t=0.1s
- Utilization Category: AC-22A
- Pollution Degree: 2
Mechanical & Installation Data
- Terminal Connection Type: Cable / Pin-type busbar / U-type busbar
- Terminal Size (Cable): 50mm² (18-1/0 AWG)
- Terminal Size (Busbar): 35mm² (18-2 AWG)
- Tightening Torque: 2.5 N·m (22 In-lbs)
- Connection Direction: From top and bottom
- Protection Degree: IP20
- Electrical Life: 1,500 operations
- Mechanical Life: 8,500 operations
- Ambient Temperature: -5°C to +40°C (Daily average ≤ 35°C)
- Storage Temperature: -25°C to +70°C
Dimensions
- Width: 72mm (4 modules)
- Height: 86.1mm
- Overall Depth: 78mm
Standards & Compliance
- Primary Standard: IEC/EN 60947-3
- Certifications: CE, SAA, VDE, SEMKO, PCT Verified
Key Features
- Safe Isolation: Specifically designed for the isolating function, ensuring a safe "open" position for circuit maintenance.
- High-Capacity Terminals: Features large terminal openings to accommodate cables up to 50mm², providing versatility for high-current applications.
- Seamless Integration: Fully compatible with other CHINT modular DIN rail products for a uniform and professional distribution board appearance.
- Robust Performance: Built to withstand demanding environments with a high mechanical life of 8,500 operations and an IP20 protection rating.
Product Downloads
Product Downloads
