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ABB TF Thermal Overload Relays
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ABB TF Thermal Overload Relays

Manufacturer: ABB
Model: TF series overload relays
Control Voltage: 690V AC
Rated Operating Current: 42A,65A,96A,140A
Suitable contactors: AF09-140

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Product Description

ABB TF Thermal Overload Relays are electromechanical protection devices designed to safeguard motors against overcurrent, phase failure, and excessive heating. Utilizing bimetallic trip technology, they automatically interrupt power during abnormal conditions, ensuring motor longevity and system safety.

Standard Features

Compatible with ABB AF-series contactors, these relays feature adjustable current settings, dual reset modes, and robust construction for industrial environments.

  • Trip Class 10 compliance for rapid overcurrent response

  • Phase Loss Sensitivity: Detects and responds to phase imbalances

  • Manual/Auto Reset: Selectable reset mode for flexible fault recovery

  • Test/Stop Function: Front-mounted trip indicator and manual test button

  • Temperature Compensation: Stable operation across -25°C to +60°C

  • Auxiliary Contacts: 2 electrically isolated contacts (1NO + 1NC) for control signaling

  • Versatile Mounting: Direct attachment to contactors or DIN rails

Technical Specifications

ModelSetting range (A)Trip class
TF42-0.130.1-0.1310
TF42-0.17
0.13-0.17
TF42-0.23
0.17-0.23
TF42-0.31
0.23-0.31
TF42-0.41
0.31-0.41
TF42-0.55
0.41-0.55
TF42-0.740.55-0.74
TF42-1.00.74-1.0
TF42-1.3
1.0-1.3
TF42-1.71.3-1.7
TF42-2.31.7-2.3
TF42-3.12.3-3.1
TF42-4.23.1-4.2
TF42-5.74.2-5.7
TF42-7.65.7-7.6
TF42-107.6-10
TF42-1310-13
TF42-1613-16
TF42-2016-20
TF42-2420-24
TF42-2924-29
TF42-3529-35
TF42-3835-38/40

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