1SDA046579R1 ABB HR/VR S8-T8 2500A 8-Piece Rear Terminal Kit

Why Choose the ABB 1SDA046579R1 HR/VR Rear Terminal Kit?

The ABB 1SDA046579R1 is a rear terminal kit with horizontal/vertical orientation designed for compatible ABB SACE Tmax T8 and SACE Isomax S8 circuit breakers rated up to 2500 A. Supplied as a complete set of 8 terminals, this version is intended for four-pole fixed circuit-breaker installations.

The HR/VR terminal arrangement provides rear power connections that can be configured horizontally or vertically to suit the switchboard layout. This flexibility is particularly valuable in high-current assemblies where busbar positioning, conductor routing and available enclosure space influence the most practical connection direction.

Designed for the S8 and T8 2500 A breaker platforms, the 1SDA046579R1 provides the eight power terminals required for both sides of a four-pole fixed breaker. As a genuine ABB accessory, it provides the dedicated mechanical interface required for compatible S8 and T8 installations.

Key Advantages

• Purpose-designed rear terminal kit for ABB S8 and T8 2500 A circuit breakers.
• HR/VR horizontal or vertical orientation provides installation flexibility.
• Complete 8-piece kit for four-pole applications.
• Designed for the demanding conductor and busbar arrangements associated with 2500 A distribution systems.
• Rear connection arrangement supports efficient switchboard and busbar layouts.
• Genuine ABB accessory engineered for compatible SACE Tmax T8 and SACE Isomax S8 equipment.

Key Features

• ABB circuit-breaker terminal accessory.
• HR/VR – horizontal/vertical rear terminal configuration.
• Designed for compatible S8 / T8 circuit breakers.
• Suitable for 2500 A breaker configurations.
• Four-pole application.
• Supplied as a complete 8-piece terminal kit.
• Designed for fixed circuit-breaker installations.
• Rear power-connection arrangement.
• ABB order code 1SDA046579R1.

Flexible Rear Connections for 2500 A S8 and T8 Circuit Breakers

High-current circuit-breaker installations require substantial electrical connections between the breaker and the surrounding busbar or conductor system. Rear terminals keep these power connections behind the circuit breaker, while an HR/VR arrangement provides flexibility to orient the connection horizontally or vertically according to the switchboard design.

The ABB 1SDA046579R1 provides eight HR/VR rear terminals for a compatible four-pole S8 or T8 fixed breaker rated at 2500 A. This configuration is well suited to industrial and infrastructure switchgear where high-current distribution, efficient busbar routing and adaptable terminal orientation are important design considerations.

Typical Applications

• ABB SACE Tmax T8 2500 A circuit-breaker installations.
• ABB SACE Isomax S8 2500 A circuit-breaker installations.
• Four-pole fixed circuit breakers.
• High-current industrial switchboards.
• Main low-voltage distribution boards.
• Commercial and infrastructure power distribution.
• Busbar systems requiring horizontal or vertical rear connections.