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4TBO851021C0100 ABB 851021 Earth Bar 12 x 4 mm with 3 Terminals APO Enclosures
ABB 851021 earth bar, order code 4TBO851021C0100, is a 12 x 4 mm protective earthing accessory with three connection terminals designed for compatible ABB APO electrical enclosure assemblies.
£23.15
Why Choose the ABB 851021 Earth Bar with 3 Terminals?
The ABB 851021, manufacturer order code 4TBO851021C0100, is an electrical earth bar with three terminals from the ABB APO Enclosures product group. Featuring a 12 × 4 mm bar cross-section, this earthing accessory is designed to provide a practical connection point for protective conductors within compatible electrical enclosure and distribution assemblies.
As part of the ABB APO enclosure accessory range, the 851021 earth bar supports the organisation and termination of protective earthing conductors. Earth bars are important components in electrical installations, providing a common connection point for conductors associated with the protective earthing system and helping installers maintain an accessible, orderly wiring arrangement.
With its 12 × 4 mm bar dimensions and three connection terminals, the ABB 851021 provides a compact earthing arrangement for compatible enclosure applications. Its dedicated manufacturer designation makes it suitable for electrical contractors, panel builders and maintenance engineers requiring the correct ABB earthing accessory for their installation.
Key Advantages
- Genuine ABB APO enclosure earthing accessory for professional electrical installations.
- Three connection terminals provide designated points for protective conductor termination.
- 12 × 4 mm earth bar cross-section for the specified mounting and connection arrangement.
- Supports organised protective earthing connections within compatible electrical enclosures.
- Provides a common connection point for suitable protective conductors.
- Helps simplify identification, installation and maintenance of earthing connections.
- Designed for integration with compatible ABB APO enclosure systems.
- Suitable for new electrical installations, enclosure assembly and replacement applications.
Key Features
- ABB APO Enclosures product group.
- ABB 851021 earth bar.
- ABB order code 4TBO851021C0100.
- 12 mm bar width.
- 4 mm bar thickness.
- 12 × 4 mm bar cross-section.
- Three conductor connection terminals.
- Designed for protective earthing and conductor termination applications.
- Provides an organised connection arrangement within compatible electrical assemblies.
- Suitable for use with appropriately selected protective conductors and enclosure accessories.
- Manufacturer-specific accessory for accurate product selection and replacement.
Technical Specifications
- Manufacturer: ABB
- Series: APO Enclosures
- Product group: APO Enclosures
- Model: 851021
- Product designation: 851021 Earth Bar 12x4mm with 3 Terminals
- Manufacturer order code: 4TBO851021C0100
- Product type: Earth bar
- Product category: Electrical earthing and enclosure accessories
- Bar width: 12 mm
- Bar thickness: 4 mm
- Bar cross-section: 12 × 4 mm
- Number of terminals: 3
- Connection function: Protective conductor termination
- Mounting application: Electrical enclosure earthing assemblies
- Compatibility: Suitable ABB APO enclosure configurations
- Application: Protective earthing and electrical bonding connections
Reliable Protective Earthing Connections for Electrical Enclosures
Protective earthing is an essential part of electrical installation safety. Earth bars provide a common connection point for protective conductors, supporting the continuity of the protective earthing system and helping ensure that exposed conductive parts are connected to the appropriate protective conductor network.
The ABB 851021 earth bar provides three terminals for connecting suitable conductors within compatible electrical enclosure assemblies. Its 12 × 4 mm bar cross-section identifies the physical conductor bar dimensions, while the terminal arrangement supports the organised termination of protective earthing connections.
When correctly incorporated into an electrical installation, an earth bar forms part of the protective conductor arrangement used to provide a fault-current path and support the operation of suitable protective devices under fault conditions. The effectiveness of this arrangement depends on the complete installation, including conductor sizing, connection integrity, protective device coordination and continuity of the earthing system.
The ABB 851021 should be installed in accordance with ABB's relevant enclosure instructions and the applicable electrical installation standards. Terminal conductor capacity, tightening torque, fault-current withstand requirements and compatibility with the intended enclosure must be established before installation. The bar's physical cross-section alone does not establish its electrical current or short-circuit rating.
Typical Applications
- Compatible ABB APO electrical enclosure assemblies.
- Protective earthing connections in electrical distribution equipment.
- Electrical control panel earthing arrangements.
- Termination of suitable protective conductors.
- Protective bonding connections within compatible electrical assemblies.
- Industrial and commercial electrical enclosure installations.
- Electrical panel building and distribution board assembly.
- Replacement and refurbishment of compatible enclosure earthing components.
Frequently Asked Questions
What is the ABB 851021 earth bar used for?
The ABB 851021 is an electrical earth bar designed to provide a common termination point for suitable protective earthing conductors within compatible ABB APO electrical enclosure assemblies.
How many terminals does the ABB 851021 earth bar have?
The ABB 851021 features three connection terminals, allowing suitable protective conductors to be connected as part of the electrical installation's earthing arrangement.
What are the dimensions of the ABB 851021 earth bar?
The earth bar has a 12 × 4 mm bar cross-section, comprising a nominal width of 12 mm and thickness of 4 mm. These measurements describe the bar cross-section rather than its overall length.
Which ABB enclosure range does the 851021 belong to?
The ABB 851021 belongs to the APO Enclosures product group. It should be used with compatible enclosure configurations and installed according to the relevant ABB mounting and earthing instructions.
What is the ABB order code for the 851021 earth bar?
The manufacturer order code is 4TBO851021C0100. This identifies the ABB 851021 Earth Bar with a 12 × 4 mm bar cross-section and three terminals.
Trusted ABB Electrical Earthing and Enclosure Solutions
ABB APO enclosure accessories provide electrical installers and panel builders with dedicated components for professional electrical distribution and control assemblies. The ABB 851021 Earth Bar, order code 4TBO851021C0100, offers a 12 × 4 mm bar cross-section and three connection terminals for organised protective earthing arrangements within compatible electrical enclosures.
