A3N 400 TMF 320-3200 3p F F

Name: A3N 400 TMF 320-3200 3p F F
Brand: ABB
SKU: A3N 400 TMF 320-3200 3p F F

The ABB A3N 400 TMF 320-3200 3p F F is a high-performance moulded case circuit breaker designed for transformer, generator, and installation protection. It features a thermomagnetic release, 3 poles, and a rated current of 320 A, ensuring reliable and efficient electrical systems.

Product ModelA3N 400 TMF 320-3200 3p F F

Material Number1SDA066560R1

Product ID93120

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High-Performance DesignThe ABB A3N 400 TMF 320-3200 3p F F is engineered with a thermomagnetic release, providing reliable and efficient performance in high-demand electrical systems.
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2. Versatile ApplicationSuitable for transformer, generator, and installation protection, making it a versatile solution for various electrical applications.
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3. Advanced Safety FeaturesEquipped with a thermomagnetic release, ensuring safe operation and quick response to short circuits, protecting your electrical system from damage.
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4. High-Rated Current CapacityWith a rated current of 320 A, this circuit breaker can handle high electrical loads, making it ideal for demanding applications.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Environmental Information

1SDL000185R001 9AKK108467A6707

Product Net Width

139.5 mm

Product Net Height

205 mm

Product Net Depth / Length

103.5 mm

Product Net Weight

4.592 kg

Product Main Type

SACE FORMULA

5. Compliance with International StandardsMeets IEC standards, ensuring compliance with international safety and performance regulations, providing peace of mind for your electrical installations.

Moulded Case Circuit Breaker

Product Type

Automatic Circuit Breaker

Version

Electrical Durability

2000 cycle

Mechanical Durability

5000 cycle

Number of Poles

Opening Time

CB with SOR 15 ms CB with UVR â¤25 ms

Power Loss

at Rated Operating Conditions per Pole 13.6 W

Rated Current (In)

Main Circuit 320 A

Rated Impulse Withstand Voltage (Uimp)

6 kV

Rated Insulation Voltage (Ui)

690 V

Rated Operational Voltage

550 V AC 250 V DC

Rated Service Short-Circuit Breaking Capacity (Ics)

(240 V AC) 42.5 kA (380 V AC) 18 kA (415 V AC) 18 kA (440 V AC) 18 kA (480 V AC) 12.5 kA (500 V AC) 10 kA (250 V DC) 2 Poles in Series 18 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(240 V AC) 85 kA (380 V AC) 36 kA (415 V AC) 36 kA (440 V AC) 36 kA (480 V AC) 25 kA (500 V AC) 20 kA (250 V DC) 2 Poles in Series 36 kA

Rated Uninterrupted Current (Iu)

400 A

Release

TMF

Release Type

Short-Circuit Performance Level

Standards

IEC

Sub-type

Terminal Connection Type

Front

ETIM 8

EC000228 - Power circuit-breaker for trafo/generator/installation protection

ETIM 9

EC000228 - Power circuit-breaker for trafo/generator/installation protection

Object Classification Code

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

eClass

V11.1 : 27370409

Manufacturer ID

1SDA066560R1