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ABB tf42-2.3 thermal overload relay 1.7a - 2.3a
MPN: 1SAZ721201R1031
Alt. SKU: TF42-2.3
Special Price
£44.21
£36.84
Regular Price
£68.02
Why Choose the TF42-2.3 [1SAZ721201R1031]
The TF42-2.3 thermal overload relay provides cost-effective electromechanical protection for motor circuits, ensuring dependable and rapid response to overloads and phase failures. Rated with a trip class 10, it incorporates temperature compensation for accurate operation under varying conditions. Key features include a normally closed trip contact, a normally open signal contact, selectable automatic or manual reset, a trip-free mechanism, a dedicated STOP function, and clear trip indication. Designed for direct mounting onto corresponding block contactors, the relay is supported by available single mounting kits for straightforward installation.
Technical Specification
- Function: Thermal overload relay for motor protection with overload and phase failure detection, trip class 10.
- Rated Operational Voltage: Main Circuit 690 V AC / 600 V DC, Auxiliary Circuit 600 V AC/DC.
- Setting Range: 1.7 to 2.3 A.
- Contact Configuration: 1 Normally Closed (NC) trip contact, 1 Normally Open (NO) signal contact.
- Insulation Voltage (Ui): 690 V with rated impulse withstand voltage (Uimp) 6 kV for both main and auxiliary circuits.
- Degree of Protection: IP20.
- Terminal Type and Size Range: Flexible and rigid cables with ferrules from 0.75 mm² up to 4 mm².
- Mechanical Features: Trip-free mechanism, selectable auto/manual reset, STOP function, and trip indication.
- Compatibility: Suitable for mounting on AF09, AF12, AF16, AF26, AF30, and AF38 contactors.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TF42-2.3 thermal overload relay?
The TF42-2.3 thermal overload relay provides electromechanical protection for motors against overload and phase failure.
What is the rated operational voltage for the TF42-2.3?
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 TF42-2.3?
The setting range is from 1.7 to 2.3 A.
What type of contacts does the TF42-2.3 have?
It features 1 Normally Closed (NC) trip contact and 1 Normally Open (NO) signal contact.
What is the degree of protection for the TF42-2.3?
The degree of protection is IP20.
What cable sizes are compatible with the TF42-2.3?
It is compatible with flexible and rigid cables with ferrules from 0.75 mm² up to 4 mm².
On which contactors can the TF42-2.3 be mounted?
The TF42-2.3 is suitable for mounting on AF09, AF12, AF16, AF26, AF30, and AF38 contactors.
| Manufacturer Part Number | 1SAZ721201R1031 |
|---|---|
| Amp Range | 1.7A - 2.3A |
| HS Code | 85364900 |
| Country of Manufacture | Germany |
| Manufacturer | ABB |
| Alternative Product SKU | TF42-2.3 |
| Barcode | 4013614398070 |
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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
