CSQ 160A DC 3-Pole Battery Fuse Disconnect Box

The CSQ 160A DC 3-Pole Battery Fuse Disconnector Box (HYCR17 Series) is a essential safety device designed to integrate fuses into DC electrical circuits, providing robust protection between high-capacity battery storage banks and inverters. Engineered specifically for 3kW to 8kW inverter systems operating on 48V battery architectures, this disconnect box ensures safe electrical isolation and reliable overcurrent defense.

The primary function of this heavy-duty disconnector is to create a secure, high-current path that prevents voltage leakage or creeping to adjacent components. In the event of a power surge or short circuit, the unit safely manages overcurrent conditions and provides a safe, accessible method for technicians to replace blown fuses without exposing surrounding infrastructure to live terminals.

Designed to accommodate NH00 / NH000 blade fuses (rated from 60A up to 160A), the CSQ disconnector boasts an impressive 50kA breaking capacity rating, making it an indispensable protection upgrade for residential solar installations, off-grid power hubs, and commercial battery energy storage setups.

Key Features

• Heavy-Duty Circuit Protection: 3-Pole DC switch disconnector built to isolate battery banks from inverters safely.
• Inverter Ready: Optimized for 48V systems paired with 3kW to 5kW inverters.
• Standardized Fuse Fitting: Compatible with standard NH00 / NH000 blade fuses rated from 60A to 160A.
• 50kA Short-Circuit Rating: Built to withstand and manage high-fault overcurrent events without failure.
• Voltage Isolation: Prevents voltage creepage to surrounding equipment, maintaining circuit integrity.
• Hinged Access Cover: Allows easy switch operation and safe, rapid replacement of blown blade fuses.
• Modular Expansion: Supports HYCR17 comb bus accessories for multi-unit parallel panel mounting.

Specifications

• Model Series: HYCR17-160 / CSQ 160A 3P
• Number of Poles: 3-Pole
• Rated Current ($I_e$): 160A
• Recommended Voltage System: 48V DC (Rated Operational Voltage $U_e$: 690V)
• Rated Insulation Voltage ($U_i$): 690V
• Rated Impulse Withstand Voltage ($U_{imp}$): 8kV
• Fuse Compatibility: NH00 / NH000 Blade Fuses (60A - 160A)
• Breaking Capacity: 50kA
• Rated Frequency: 50/60 Hz
• Mechanical Life: 1,600 operations
• Electrical Life: 200 operations
• Dimensions (H × W × D): 163 mm × 107 mm × 80 mm
• Weight (Without Fuses): Approx. 0.63 kg

Application & Installation Guidelines

• Mount securely on a non-combustible surface in close proximity to the battery bank and inverter.
• Strip and crimp battery cables using heavy-duty lugs to ensure low contact resistance at the terminals.
• Ensure NH00 fuses are selected based on the specific continuous and peak surge current ratings of your inverter setup.

Safety & Electrical Notice
High-voltage DC circuits can sustain dangerous electrical arcs. Always ensure inverter loads are shut down or turned off prior to operating the fuse disconnect handle under load. Installation should be performed by a qualified electrician or accredited solar installer in accordance with local regulations (SANS 10142-1).

What's in the box
1 x CSQ 160A 3-Pole DC Battery Fuse Switch Disconnector Box
2 x 160A Fuse Link