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ABB tf65-33 thermal overload relay 25a - 33a
MPN: 1SAZ811201R1002
Alt. SKU: TF65-33
Special Price
£84.91
£70.76
Regular Price
£130.63
Why Choose the TF65-33 [1SAZ811201R1002]
The TF65-33 thermal overload relay is a cost-effective electromechanical protection device designed for main circuit motor safeguarding. It provides dependable and rapid response to motor overloads and phase failures, featuring a trip class 10 rating for precise thermal protection. Key technical features include temperature compensation, a normally closed trip contact, a normally open signal contact, and selectable automatic or manual reset options. The device incorporates a trip-free mechanism, a 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 ensure secure and efficient installation.
Technical Specification
- Function: Thermal overload relay for motor protection with trip class 10, providing fast response to overload and phase failure.
- Voltage Ratings: Main circuit up to 690 V AC and 440 V DC; auxiliary circuit up to 600 V AC/DC.
- Current Setting Range: 25 to 33 A with a rated operational current of 33 A.
- Contact Configuration: 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation Voltage: Rated insulation voltage 690 V with impulse withstand voltage of 8 kV for main circuit and 6 kV for auxiliary circuit.
- Degree of Protection: Housing IP20; main circuit terminals IP10.
- Terminal Type and Capacity: Flexible and rigid conductors; main circuit terminals support 2.5 to 35 mm² cross-section, auxiliary circuit terminals 0.75 to 4 mm².
- Tightening Torque: 4.0 to 4.5 N·m for main circuit; 1 to 1.2 N·m for auxiliary circuit.
- Mounting: Suitable for mounting positions 1 to 6 and compatible with AF40, AF52, and AF65 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 TF65-33 thermal overload relay?
The TF65-33 thermal overload relay provides electromechanical protection for motors against overload and phase failure, with a trip class of 10.
What is the current setting range for this relay?
The current setting range for the TF65-33 is 25 to 33 A, with a rated operational current of 33 A.
What are the voltage ratings for the TF65-33?
The relay supports a main circuit voltage of up to 690 V AC and 440 V DC, and an auxiliary circuit voltage of up to 600 V AC/DC.
What types of conductors can be used with the TF65-33?
The main circuit terminals support flexible and rigid conductors with a cross-section of 2.5 to 35 mm², while the auxiliary circuit terminals support 0.75 to 4 mm².
How is the TF65-33 mounted?
The TF65-33 is suitable for mounting positions 1 to 6 and is compatible with AF40, AF52, and AF65 contactors.
What is the degree of protection for the TF65-33?
The housing has an IP20 rating, while the main circuit terminals are rated IP10.
What should I refer to for standards and approvals?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAZ811201R1002 |
|---|---|
| Amp Range | 25A - 33A |
| HS Code | 85364900 |
| Country of Manufacture | China |
| Manufacturer | ABB |
| Alternative Product SKU | TF65-33 |
| Barcode | 4013614482922 |
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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
