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ABB tf96-87 thermal overload relay 75a - 87a
MPN: 1SAZ911201R1005
Alt. SKU: TF96-87
Special Price
£133.06
£110.88
Regular Price
£204.70
Why Choose the TF96-87 [1SAZ911201R1005]
The TF96-87 thermal overload relay provides cost-effective, electromechanical protection for main motor circuits. Designed to deliver reliable and rapid response to overload conditions and phase failure, it features a trip class 10 rating for precise thermal protection. Key functions 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 for flexible installation.
Technical Specification
- Function: Thermal overload relay with trip class 10 for motor protection against overload and phase failure.
- Rated Operational Current: 75 to 87 A.
- Rated Voltage: Main circuit 690 V AC, 440 V DC; Auxiliary circuit 600 V AC/DC.
- Contact Configuration: 3 poles, 1 normally closed (NC) trip contact, 1 normally open (NO) signal contact.
- Insulation and Impulse Withstand Voltage: Rated insulation voltage 690 V; impulse withstand voltage 6 kV (auxiliary), 8 kV (main).
- Degree of Protection: Housing IP20; main circuit terminals IP10.
- Terminal Type and Size Range: Main circuit terminals accept flexible or rigid cables from 6 to 50 mm²; auxiliary circuit terminals accept 0.75 to 4 mm².
- Tightening Torque: 6.0–9.0 N·m (main circuit), 1.0–1.2 N·m (auxiliary circuit).
- Mounting Compatibility: Suitable for AF80 and AF96 contactors.
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the TF96-87 thermal overload relay?
The TF96-87 thermal overload relay provides protection for motors against overload and phase failure, featuring a trip class of 10.
What is the rated operational current for this relay?
The rated operational current for the TF96-87 thermal overload relay is between 75 to 87 A.
What is the degree of protection for the TF96-87 relay?
The housing has an IP20 rating, while the main circuit terminals are rated IP10.
What type of cables can be connected to the main circuit terminals?
The main circuit terminals accept flexible or rigid cables ranging from 6 to 50 mm².
Is the TF96-87 compatible with other contactors?
Yes, the TF96-87 is suitable for use with AF80 and AF96 contactors.
What are the tightening torque specifications for the terminals?
The tightening torque is 6.0–9.0 N·m for the main circuit and 1.0–1.2 N·m for the auxiliary circuit.
What standards and approvals does the TF96-87 comply with?
See the manufacturer's data sheet for standards and approvals.
| Manufacturer Part Number | 1SAZ911201R1005 |
|---|---|
| Product Image | For Illustration Purposes Only |
| Amp Range | 75A - 87A |
| Manufacturer | ABB |
| Alternative Product SKU | TF96-87 |
| Barcode | 4013614483028 |
| Product Lead Time | Please contact us for a delivery time |
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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
