1SDA083664R1 ABB T5V-HA 400 TMA 320 A 3-Pole 800 V AC MCCB

Why Choose the ABB T5V-HA 400 TMA 1SDA083664R1 Circuit Breaker?

The ABB 1SDA083664R1 is a high-performance SACE Tmax T5V-HA moulded case circuit breaker (MCCB) designed for demanding low-voltage distribution applications operating at up to 800 V AC. This fixed three-pole circuit breaker combines a 320 A rated current with ABB's TMA thermomagnetic release to provide dependable overload and short-circuit protection.

As part of the ABB SACE Tmax T5 high-voltage AC range, the T5V-HA 400 is engineered for electrical systems where conventional low-voltage MCCBs may not provide the required operating-voltage capability. At 800 V AC, it provides a rated ultimate short-circuit breaking capacity (Icu) of 32 kA and a rated service short-circuit breaking capacity (Ics) of 16 kA.

The breaker features a TMA thermomagnetic trip unit with a rated current of 320 A, adjustable overload protection from 224–320 A and instantaneous short-circuit protection adjustable from 1600–3200 A. Its fixed mounting arrangement, three-pole construction and front terminals make it suitable for integration into industrial switchboards and other high-voltage AC distribution assemblies.

Key Advantages

• High-performance ABB SACE Tmax T5V-HA moulded case circuit breaker.
• Designed for operation at up to 800 V AC.
• 320 A rated current for substantial three-phase distribution loads.
• 32 kA Icu breaking capacity at 800 V AC for demanding fault conditions.
• TMA thermomagnetic release provides adjustable overload and instantaneous short-circuit protection.
• Fixed three-pole configuration with front terminals for switchboard installation.

Key Features

• ABB SACE Tmax T5V-HA 400 circuit breaker.
• 320 A rated uninterrupted current.
• 800 V AC rated operational voltage.
• TMA thermomagnetic trip unit.
• Adjustable overload setting from 224–320 A.
• Instantaneous short-circuit setting from 1600–3200 A.
• 32 kA Icu and 16 kA Ics at 800 V AC.
• 3-pole fixed construction with front terminals.
• 1000 V rated insulation voltage and 8 kV impulse withstand voltage.
• Original ABB order code 1SDA083664R1.

Reliable Protection for 800 V AC Distribution Systems

Moulded case circuit breakers protect electrical distribution systems against overloads and short circuits by automatically interrupting abnormal current conditions. The ABB T5V-HA is designed specifically for applications requiring operation at elevated AC voltages, providing dependable protection at 800 V AC while retaining the compact construction and installation flexibility of the Tmax family.

The TMA thermomagnetic release provides adjustable thermal overload protection together with adjustable instantaneous magnetic short-circuit protection. For the 1SDA083664R1, the overload setting can be adjusted between 224 A and 320 A, while the instantaneous short-circuit threshold can be set between 1600 A and 3200 A, allowing protection to be matched to the characteristics of the connected circuit.

Typical Applications

• Industrial 800 V AC power distribution systems.
• High-voltage AC distribution switchboards.
• Industrial and commercial power distribution assemblies.
• Renewable energy and photovoltaic AC distribution systems.
• Manufacturing and process installations.
• OEM switchgear and electrical panel-building applications.