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ABB tf42-7.6 thermal overload relay 5.7a - 7.6a
MPN: 1SAZ721201R1040
Alt. SKU: TF42-7.6
Special Price
£44.21
£36.84
Regular Price
£68.02
Why Choose the TF42-7.6 [1SAZ721201R1040]
The TF42-7.6 thermal overload relay provides cost-effective electromechanical protection for main motor circuits. Designed to deliver reliable and rapid response to overloads and phase failure, it features a trip class 10 rating for precise motor safeguarding. Key technical attributes include temperature compensation, a normally closed trip contact, a normally open signal contact, and selectable automatic or manual reset options. The relay incorporates a trip-free mechanism, a dedicated STOP function, and clear trip indication for straightforward fault diagnosis. It is engineered for direct mounting onto corresponding block contactors, with single mounting kits available separately to ensure seamless installation.
Technical Specification
- Function: Electromechanical thermal overload relay with trip class 10 for motor protection against overload and phase failure.
- Rated Operational Current: 7.6 A.
- Setting Range: 5.7 to 7.6 A.
- Rated Operational Voltage: Main circuit 690 V AC, auxiliary circuit 600 V AC/DC.
- Contact Configuration: 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation Voltage and Impulse Withstand: Rated insulation voltage 690 V; impulse withstand voltage 6 kV for both main and auxiliary circuits.
- Degree of Protection: IP20.
- Terminal Type and Capacity: Flexible and rigid conductors with ferrules, main circuit 0.75–4 mm², auxiliary circuit 0.75–2.5 mm².
- Tightening Torque: Main circuit 1.5–2.5 N·m; auxiliary circuit 1–1.2 N·m.
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TF42-7.6 thermal overload relay?
The TF42-7.6 is an electromechanical protection device designed to protect motors from overload and phase failure.
What is the rated operational current for this relay?
The rated operational current is 7.6 A.
What is the setting range for the overload relay?
The setting range is from 5.7 to 7.6 A.
What type of contacts does the TF42-7.6 relay have?
It has one normally closed (NC) trip contact and one normally open (NO) signal contact.
What is the degree of protection for this relay?
The degree of protection is IP20.
What is the tightening torque for the main circuit terminals?
The tightening torque for the main circuit is 1.5–2.5 N·m.
Is there any conformity information available for this product?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAZ721201R1040 |
|---|---|
| Amp Range | 5.7A - 7.6A |
| HS Code | 85364900 |
| Country of Manufacture | Germany |
| Manufacturer | ABB |
| Alternative Product SKU | TF42-7.6 |
| Barcode | 4013614398117 |
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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
