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ABB tf140du-142 thermal overload relay 110a - 142a
MPN: 1SAZ431201R1004
Alt. SKU: TF140DU-142
Special Price
£228.43
£190.36
Regular Price
£351.43
Why Choose the TF140DU-142 [1SAZ431201R1004]
The TF140DU-142 thermal overload relay provides cost-effective, electromechanical protection for motor circuits, ensuring rapid and reliable response to overloads and phase failures. Rated with a trip class 10A, it incorporates temperature compensation for accurate operation across varying conditions. Key features include a normally closed trip contact, a normally open signalling contact, selectable automatic or manual reset, a trip-free mechanism, as well as dedicated STOP and test functions with clear trip indication. Designed for direct mounting on corresponding contactor blocks, this relay ensures seamless integration and dependable motor protection in industrial applications.
Technical Specification
- Function: Electromechanical thermal overload relay for motor protection with trip class 10A, temperature compensation, and selectable auto/manual reset.
- Rated Current: 110 to 142 A adjustable.
- Rated Operational Voltage: Main circuit up to 690 V AC/DC; auxiliary circuit up to 500 V AC / 440 V DC.
- Contact Configuration: 3 poles with 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
- Insulation Voltage: Rated insulation voltage of 690 V; impulse withstand voltage 6 kV (auxiliary) / 8 kV (main).
- Degree of Protection: IP20 housing; IP10 main circuit terminals.
- Terminal Type and Size: Compatible with flexible and rigid cables; main circuit terminals accommodate 16 to 70 mm² conductors; auxiliary 0.75 to 4 mm².
- Mounting: Suitable for any position; direct connection to AF116 and AF140 contactors.
- Durability Features: Trip-free mechanism, STOP and Test functions, and trip indication for reliable operation and easy diagnosis.
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TF140DU-142 thermal overload relay?
The TF140DU-142 is an electromechanical thermal overload relay designed for motor protection against overload and phase failure.
What is the adjustable rated current range for this relay?
The rated current is adjustable from 110 to 142 A.
What is the maximum operational voltage for the main circuit?
The maximum rated operational voltage for the main circuit is up to 690 V AC/DC.
What type of contact configuration does this relay have?
The relay features a 3-pole configuration with 1 normally closed (NC) trip contact and 1 normally open (NO) signal contact.
What is the degree of protection for the TF140DU-142?
The device has an IP20 housing and IP10 rating for the main circuit terminals.
Can the TF140DU-142 be mounted in any position?
Yes, the relay is suitable for mounting in any position.
What cable sizes are compatible with the main circuit terminals?
The main circuit terminals accommodate conductors from 16 to 70 mm².
| Manufacturer Part Number | 1SAZ431201R1004 |
|---|---|
| Amp Range | 110A - 142A |
| HS Code | 85364900 |
| Country of Manufacture | Bulgaria |
| Manufacturer | ABB |
| Alternative Product SKU | TF140DU-142 |
| Barcode | 4013614446849 |
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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
