1SAZ721201R1049 TF42-20, ABB TF42 Thermal Overload Relay 1NO + 1NC, 16 → 20 A F.L.C, 20 A Contact Rating, 2.6 W, 3P, AF Range, Реле

ABB TF42 Series Thermal Overload Relay, 20A Contact Current, 2.6W - 1SAZ721201R1049 TF42-20

The ABB thermal overload relay is a crucial electromechanical protection device designed for the main circuit to safeguard motors against overload and phase failures. This highly reliable relay is an essential component in starter combinations used alongside contactors. With a trip class of 10 and phase loss sensitivity, this relay offers effective protection for motors in a wide range of industrial applications.

Features & Benefits

• Overload protection with a trip class of 10 for optimal motor safety
• Phase loss sensitivity to detect and address phase failures promptly
• Temperature compensation ranging from -25°C to +60°C for reliable performance in varied environments
• Adjustable current setting for personalised overload protection as per motor requirements
• Automatic or manual reset options for added flexibility and convenience
• Trip-free mechanism for ensuring the device operates seamlessly in critical situations
• Status indication feature provides clear visibility on the operational state of the relay
• Direct mounting onto block contactors for easy installation and integration
• Sealable operating elements for enhanced security and protection against tampering

Applications

• Ideal for motor overload protection in industrial automation systems.
• Used in mechanical equipment to prevent damage due to overload conditions.
• Commonly integrated into electrical panels for comprehensive motor protection.
• Suitable for both indoor and outdoor applications in various industrial settings.
• Designed for use with AF Range contactors to ensure seamless operation.

What is the relay for ?

This a thermal overload relay. It’s an economic electromechanical protection device for the main circuit. It offers reliable and fast protection for motors in the event of overload or phase failure.

What are some features of this relay?

This relay has trip class 10, temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP function, and a trip indication

What is the setting range?

The setting range is 16 to 20 A.

ABB LV cat. pages 11 to 17 - TF42 O/L Relays

Thermal Overload Relays Datasheet

Catalogue - IEC Style Contactors, Overload Relays and Manual Motor Starters

Application Note - Thermal Overload Relays

Brochure - Essential Solutions Guide

Manual - ACS580-0P with Bypass