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ABB tf42-0.41 thermal overload relay 0.31a - 0.41a
MPN: 1SAZ721201R1014
Alt. SKU: TF42-0.41
Special Price
£44.21
£36.84
Regular Price
£68.02
Why Choose the TF42-0.41 [1SAZ721201R1014]
The TF42-0.41 thermal overload relay provides cost-effective electromechanical protection for motor circuits. Designed to deliver reliable and rapid response to overload and phase failure conditions, it features a trip class 10 rating for precise motor safeguarding. Key functionalities include temperature compensation, a normally closed trip contact, a normally open signal contact, and selectable automatic or manual reset modes. The device incorporates a trip-free mechanism, a dedicated STOP function, and clear trip indication for straightforward diagnostics. These overload relays mount directly onto compatible block contactors, with single mounting kits available as accessories to facilitate installation.
Technical Specification
- Function: Thermal overload relay with trip class 10, providing reliable motor protection against overload and phase failure.
- Rated Operational Voltage: Main circuit 690 V AC / 600 V DC; Auxiliary circuit 600 V AC/DC.
- Setting Range: 0.31 to 0.41 A, with a rated operational current of 0.41 A.
- Contact Configuration: 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation & Impulse Withstand Voltage: Rated insulation voltage 690 V; Rated impulse withstand voltage 6 kV for both main and auxiliary circuits.
- Degree of Protection: IP20, suitable for industrial electrical environments.
- Terminal Type & Size Range: Suitable for flexible and rigid cables with ferrules, 0.75 to 4 mm² for main circuit; 0.75 to 2.5 mm² for auxiliary circuit.
- Tightening Torque: 1.5 to 2.5 N·m for main circuit, 1 to 1.2 N·m for auxiliary circuit.
- Key Mechanical Features: Trip-free mechanism, selectable automatic/manual reset, STOP function, and trip indication.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TF42-0.41 thermal overload relay?
The TF42-0.41 thermal overload relay provides reliable protection for motors against overload and phase failure, with a trip class of 10.
What is the rated operational voltage for the TF42-0.41?
The rated operational voltage is 690 V AC / 600 V DC for the main circuit and 600 V AC/DC for the auxiliary circuit.
What is the setting range for the TF42-0.41?
The setting range is from 0.31 to 0.41 A, with a rated operational current of 0.41 A.
What types of cables can be used with the TF42-0.41?
It is suitable for flexible and rigid cables with ferrules, ranging from 0.75 to 4 mm² for the main circuit and 0.75 to 2.5 mm² for the auxiliary circuit.
What is the degree of protection for the TF42-0.41?
The degree of protection is IP20, making it suitable for industrial electrical environments.
Can the TF42-0.41 be reset automatically?
Yes, the relay features a selectable automatic or manual reset option.
What is the tightening torque for the terminals?
The tightening torque is 1.5 to 2.5 N·m for the main circuit and 1 to 1.2 N·m for the auxiliary circuit.
| Manufacturer Part Number | 1SAZ721201R1014 |
|---|---|
| Amp Range | 0.31A - 0.41A |
| HS Code | 85364900 |
| Country of Manufacture | Germany |
| Manufacturer | ABB |
| Alternative Product SKU | TF42-0.41 |
| Barcode | 4013614404719 |
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Motor protection for overload and phase failure
Thermal overload relays are economic electromechanical protection devices for the main circuit. They offer reliable protection for motors in the event of overload or phase failure. The thermal overload relay can make up a compact starting solution together with contactors.
Main Benefits:
- Reliable protection for motors
- Easy to create starters
- Optimized match to ABB contactors
- Single mounting kits and wire reset for
remote control available for specific applications
Main Features:
- Adjustable current setting ranges
- Overload protection with phase loss sensitivity
- Temperature compensation up to +60°C
- Automatic or manual reset, sealable
- Stop and test function
