Why Choose the ABB ZH311 320 A Busbar System?
The ABB ZH311 is a 320 A three-pole copper busbar system designed for compatible NH00 fuse-switch-disconnector modules in ABB CombiLine N low-voltage distribution assemblies. It provides a purpose-designed power-distribution solution for the MT336 / MBT336 module configuration.
The ZH311 uses 20 × 5 mm E-Cu busbars manufactured in accordance with DIN 43673-1. The copper rails are 660 mm long, arranged with a 33 mm rail centre spacing and provide M8 screw connections for secure electrical termination.
Rated at 320 A with a short-circuit withstand rating of 25 kA, the ZH311 supports up to six NH00 devices in its intended configuration. Its ABB system compatibility makes it suitable for structured commercial and industrial sub-distribution installations requiring dependable high-current busbar distribution.
Key Advantages
- Rated for continuous currents up to 320 A.
- Uses substantial 20 × 5 mm E-Cu copper busbars.
- Three-pole configuration for compatible three-phase distribution systems.
- Supports up to six NH00 devices in the intended MT336 / MBT336 arrangement.
- M8 screw connections provide robust electrical termination.
- Purpose-designed for integration into compatible ABB CombiLine N distribution assemblies.
Key Features
- ABB CombiLine N busbar system.
- Rated current: 320 A.
- Busbar size: 20 × 5 mm.
- Busbar length: 660 mm.
- Number of poles: 3.
- Material: E-Cu copper.
- Connection: M8 screw connection.
- Rail centre spacing: 33 mm.
- Short-circuit withstand: 25 kA.
- Suitable for MT336 / MBT336 NH00 fuse-switch-disconnector modules.
- Maximum compatible equipment quantity: 6.
- ABB order code 2CPX060450R9999.
High-Current Distribution for NH00 Fuse Switch Disconnectors
Busbar systems provide an efficient method of distributing incoming electrical power across multiple protective or switching devices within a low-voltage assembly. The ABB ZH311 combines three 20 × 5 mm copper rails with a 320 A current rating, providing a system-specific distribution arrangement for compatible NH00 fuse-switch-disconnector modules.
With its 660 mm rail length, M8 screw connections and capacity for up to six devices in the MT336 / MBT336 configuration, the ZH311 provides panel builders with a structured solution for incorporating NH00 fuse-switch disconnectors into ABB CombiLine N distribution systems.
Typical Applications
- ABB CombiLine N low-voltage distribution assemblies.
- MT336 and MBT336 NH00 fuse-switch-disconnector modules.
- Commercial sub-distribution boards.
- Industrial electrical distribution panels.
- Three-phase power-distribution assemblies.
- Panel-building applications requiring a 320 A copper busbar system.
