A3N 400 TMF 300-3000 3p F F 50??C

Name: A3N 400 TMF 300-3000 3p F F 50??C
Brand: ABB
SKU: A3N 400 TMF 300-3000 3p F F 50??C

The A3N 400 TMF 300-3000 3P FF 50°C is a robust, three-pole circuit breaker featuring thermomagnetic release. It operates reliably in temperatures up to 50°C, making it perfect for industrial settings.

Product ModelA3N 400 TMF 300-3000 3p F F 50??C

Material Number1SDA068809R1

Product ID72145

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Operation in Harsh EnvironmentsThe A3N 400 TMF 300-3000 3P FF 50°C is designed to operate reliably in temperatures up to 50°C, ensuring continuous performance even in challenging conditions.
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2. Thermomagnetic Release for Enhanced SafetyEquipped with a thermomagnetic release, this circuit breaker provides an additional layer of safety by automatically tripping in case of overheating, preventing potential electrical hazards.
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3. Three-Pole Configuration for VersatilityThe three-pole design allows for flexible installation and use in various electrical configurations, making it a versatile choice for industrial applications.
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4. Front Terminal Design for Easy InstallationThe front terminal design simplifies the installation process, reducing setup time and ensuring a secure connection.

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

4.75 kg

Product Main Type

SACE FORMULA

5. High-Performance and EfficiencyBuilt with high-quality components, the A3N 400 TMF 300-3000 3P FF 50°C offers efficient performance, minimizing downtime and maximizing productivity in industrial settings.

Moulded Case Circuit Breaker

Product Type

Automatic Circuit Breaker

Version

Electrical Durability

2000 cycle

Mechanical Durability

5000 cycle

Number of Poles

Rated Current (In)

Main Circuit 300 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

WEEE Category

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

eClass

V11.1 : 27370409

Manufacturer ID

1SDA068809R1