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ABB tf42-1.3 thermal overload relay 1.0a - 1.3a
MPN: 1SAZ721201R1025
Alt. SKU: TF42-1.3
Special Price
£44.21
£36.84
Regular Price
£68.02
Why Choose the TF42-1.3 [1SAZ721201R1025]
The TF42-1.3 thermal overload relay provides cost-effective, electromechanical protection for main motor circuits. Designed to deliver dependable and rapid response to overload conditions and phase failure, it features a trip class 10 rating for precise thermal tripping. Key technical attributes include temperature compensation, a normally closed trip contact, a normally open signal contact, and selectable automatic or manual reset modes. The relay incorporates a trip-free mechanism, an integrated STOP function, and clear trip indication for straightforward diagnostics. It is designed for direct mounting onto compatible block contactors, with single mounting kits available as optional accessories to facilitate installation.
Technical Specification
- Function: Thermal overload relay with trip class 10 for motor protection against overload and phase failure.
- Rated Operational Current: 1.3 A.
- Rated Operational Voltage: Main Circuit 690 V AC, 600 V DC; Auxiliary Circuit 600 V AC/DC.
- Contact Configuration: 3 poles protected; 1 Normally Closed (NC) trip contact and 1 Normally Open (NO) signal contact.
- Insulation Voltage: 690 V.
- Rated Impulse Withstand Voltage: 6 kV (Main and Auxiliary circuits).
- Degree of Protection: IP20.
- Terminal Types and Sizes: Supports flexible and rigid cables with ferrules, from 0.75 to 4 mm².
- Tightening Torque: Auxiliary Circuit 1–1.2 N·m; Main Circuit 1.5–2.5 N·m.
- Mounting Compatibility: Suitable for AF09, AF12, AF16, AF26, AF30, AF38 contactors.
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the purpose of the TF42-1.3 thermal overload relay?
The TF42-1.3 thermal overload relay provides protection for motors against overload and phase failure, ensuring reliable operation in the main circuit.
What is the rated operational current of the TF42-1.3?
The rated operational current is 1.3 A.
What is the trip class of the TF42-1.3?
The device has a trip class of 10.
What types of contactors is the TF42-1.3 compatible with?
The TF42-1.3 is suitable for AF09, AF12, AF16, AF26, AF30, and AF38 contactors.
What is the degree of protection for the TF42-1.3?
The degree of protection is IP20.
What cable sizes can be used with the TF42-1.3?
The relay supports flexible and rigid cables with ferrules, from 0.75 to 4 mm².
What should I refer to for standards and approvals of the TF42-1.3?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAZ721201R1025 |
|---|---|
| Amp Range | 1.0A - 1.3A |
| Manufacturer | ABB |
| Alternative Product SKU | TF42-1.3 |
| Barcode | 4013614398056 |
| Product Lead Time | Delivery 2/3 days |
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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
