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ABB tf65-53 thermal overload relay 44a - 53a
MPN: 1SAZ811201R1005
Alt. SKU: TF65-53
Special Price
£101.80
£84.83
Regular Price
£156.60
Why Choose the TF65-53 [1SAZ811201R1005]
The TF65-53 thermal overload relay provides cost-effective electromechanical protection for motor circuits, delivering reliable and rapid response to overload conditions and phase failure. Rated with a trip class 10, it incorporates temperature compensation to ensure accurate operation under varying thermal 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 optional single mounting kits for straightforward installation.
Technical Specification
- Function: Thermal overload relay providing reliable protection against motor overload and phase failure with trip class 10.
- Rated Operational Voltage: Main circuit up to 690 V AC / 440 V DC; Auxiliary circuit up to 600 V AC/DC.
- Rated Current: 44 to 53 A adjustable setting range; 53 A maximum operational current.
- Contact Configuration: 3 poles protected; 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation & Impulse Withstand Voltage: Rated insulation voltage 690 V; impulse withstand voltage 6 kV (auxiliary), 8 kV (main).
- Degree of Protection: IP20 housing, IP10 at main circuit terminals.
- Terminal Type & Size: Main circuit terminals accept flexible and rigid cables from 2.5 to 35 mm²; auxiliary circuit terminals from 0.75 to 4 mm².
- Mechanical Features: Trip-free mechanism, automatic/manual reset selectable, STOP function, trip indication.
- Mounting Compatibility: Designed for direct mounting on 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 TF65-53 thermal overload relay?
The TF65-53 thermal overload relay provides reliable protection against motor overload and phase failure, with a trip class of 10.
What is the rated operational voltage for the TF65-53?
The rated operational voltage is up to 690 V AC / 440 V DC for the main circuit and up to 600 V AC/DC for the auxiliary circuit.
What is the adjustable current setting range for this relay?
The adjustable setting range is from 44 to 53 A, with a maximum operational current of 53 A.
What type of contacts does the TF65-53 have?
It features 3 poles protected, including 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
What is the degree of protection for the TF65-53?
The relay has an IP20 housing and IP10 at the main circuit terminals.
What cable sizes can be used with the main and auxiliary circuit terminals?
Main circuit terminals accept flexible and rigid cables from 2.5 to 35 mm²; auxiliary circuit terminals accept cables from 0.75 to 4 mm².
Is the TF65-53 compatible with specific contactors?
Yes, it is designed for direct mounting on AF40, AF52, and AF65 contactors.
| Manufacturer Part Number | 1SAZ811201R1005 |
|---|---|
| Amp Range | 44A - 53A |
| HS Code | 85364900 |
| Country of Manufacture | China |
| Manufacturer | ABB |
| Alternative Product SKU | TF65-53 |
| Barcode | 4013614482953 |
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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
