Why Choose the ABB ZH312 320 A Busbar System?
The ABB ZH312 is a 320 A three-pole copper busbar system designed for compatible ABB NH00 fuse-switch-disconnector modules. Part of the ABB CombiLine N interior distribution system, it provides a purpose-designed power-distribution arrangement for M(B)T337 module configurations.
The ZH312 uses 20 × 5 mm E-Cu copper busbars manufactured in accordance with DIN 43673-1. The busbars are 650 mm long, arranged with a 33 mm rail centre spacing and equipped with M8 screw connections for secure electrical termination.
Rated at 320 A with a 25 kA short-circuit withstand rating, the ZH312 features a double-level arrangement for the M(B)T337 module and supports up to 12 devices. Its system-specific construction makes it suitable for structured commercial and industrial low-voltage distribution assemblies.
Key Advantages
- Rated for continuous currents up to 320 A.
- Uses substantial 20 × 5 mm E-Cu copper busbars.
- Three-pole, double-level arrangement for compatible NH00 modules.
- Supports up to 12 compatible devices.
- 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: 650 mm.
- Number of poles: 3.
- Arrangement: Double-level.
- Material: E-Cu copper.
- Connection: M8 screw connection.
- Rail centre spacing: 33 mm.
- Short-circuit withstand: 25 kA.
- Suitable for M(B)T337 NH00 fuse-switch-disconnector modules.
- Maximum compatible equipment quantity: 12.
- ABB order code 2CPX060451R9999.
Double-Level Power Distribution for NH00 Fuse Switch Disconnectors
Busbar systems provide an efficient method of distributing incoming electrical power across multiple protective and switching devices within low-voltage assemblies. The ABB ZH312 combines three 20 × 5 mm copper rails with a 320 A current rating in a double-level arrangement designed for compatible NH00 fuse-switch-disconnector modules.
With its 650 mm busbar length, M8 screw connections and capacity for up to 12 devices, the ZH312 provides panel builders with a structured solution for integrating M(B)T337 NH00 fuse-switch-disconnector modules into ABB CombiLine N distribution systems.
Typical Applications
- ABB CombiLine N low-voltage distribution assemblies.
- M(B)T337 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 double-level copper busbar system.
