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ABB TF42-0.55 Thermal Overload Relay, 0.45-0.55A, 690V AC, 3-Pole, 1NO+1NC

ABB TF42-0.55 Thermal Overload Relay, 0.45-0.55A, 690V AC, 3-Pole, 1NO+1NC
ABB TF42-0.55 Thermal Overload Relay, 0.45-0.55A, 690V AC, 3-Pole, 1NO+1NC
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R1,783
+R6 Reward
With a rated impulse withstand voltage of 6 kV, the ABB TF42-0.55 thermal overload relay delivers robust protection for motors up to 690 V AC. This compact device offers precise current adjustment from 0.45 to 0.55 A, ensuring reliable operation in demanding industrial environments.OverviewThe ABB T... Read More
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Stock 1 Code 3330122 Brand ABB Model 1SAZ721201R1017 Warranty 2 Years

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Estimated delivery Tuesday, October 6
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With a rated impulse withstand voltage of 6 kV, the ABB TF42-0.55 thermal overload relay delivers robust protection for motors up to 690 V AC. This compact device offers precise current adjustment from 0.45 to 0.55 A, ensuring reliable operation in demanding industrial environments.

Overview

The ABB TF42-0.55 is a thermal overload relay engineered for direct mounting on ABB AF09-AF38 contactors or standalone installation. It provides dependable protection against overloads and phase failures, with manual and automatic reset options to suit various applications. The relay features a temperature-compensated design that maintains accuracy from -20 to +60 °C, making it suitable for a wide range of operating conditions.

What stands out

  • Rated operational voltage up to 690 V AC for versatile use.
  • Adjustable current range from 0.45 to 0.55 A for precise motor protection.
  • Phase failure sensitivity prevents motor damage from unbalanced loads.
  • Manual and automatic reset modes offer flexibility in control schemes.
  • Compatible with ABB AF09-AF38 contactors for seamless integration.
  • IP20 protection and DIN rail mounting for easy installation.

Technical details

  • Rated operational current setting range: 0.45 - 0.55 A
  • Rated operational voltage: 690 V AC
  • Rated insulation voltage (Ui): 690 V
  • Rated impulse withstand voltage (Uimp): 6 kV
  • Number of poles: 3
  • Auxiliary contact configuration: 1 NO + 1 NC
  • Tripping class: Class 10A
  • Temperature compensation: -20 to +60 °C
  • Reset type: Manual and automatic
  • Mounting type: Direct to contactor / stand-alone
  • Degree of protection: IP20
  • Ambient operating temperature: -25 to +60 °C
  • Overload type: Thermal
  • Phase failure sensitivity: Yes
  • Standard compliance: IEC/EN 60947-4-1, IEC/EN 60947-5-1
  • Power loss per pole: 2.5 W (at max current)

Our verdict

The ABB TF42-0.55 is a reliable and precise thermal overload relay, ideal for protecting small motors in industrial applications. Its robust construction and compliance with international standards ensure long-term performance and safety.

Specifications
AC input voltage
690 V AC
Brand
ABB
Category
Thermal Overload Relay
DIN rail mounting
Yes
EAN
4013614398025
LED indicators
No
Maximum current
0.55 A
Model
TF42-0.55
MPN
1SAZ721201R1017
Operating temperature (T-T)
-25 - 60 °C
Overheat protection
Yes
Overload protection
Yes
Power consumption (typical)
2.5 W
Product type
Thermal Overload Relay
Weight
0.16 kg
Price history over the last 6 months
ABB TF42-0.55 Thermal Overload Relay, 0.45-0.55A, 690V AC, 3-Pole, 1NO+1NC
Current
R1,783
Lowest
R1,741
Highest
R1,783
Change 24H
+R26   +1%
Week
+R42   +2%
Month
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