TF42-1.7 Thermal Overload Relay
TF42-1.7 Thermal Overload Relay
TF42 thermal overload relay - 0.10 to 38.0A
* Part number: TF42-1.7
* The TF42 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 devices have trip class 10.
* The thermal overload relays are three pole relays with bimetal tripping elements. The motor current flows through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal elements bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching position (95-96 / 97-98).
* Manual or automatic reset selectable
* Phase loss sensitive acc. to IEC/EN 60947-4-1
* TEST and STOP function - Trip indication on the front
* Temperature compensation
* Suitable for three- and single-phase applications
* Part number: TF42-1.7
* The TF42 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 devices have trip class 10.
* The thermal overload relays are three pole relays with bimetal tripping elements. The motor current flows through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal elements bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching position (95-96 / 97-98).
* Manual or automatic reset selectable
* Phase loss sensitive acc. to IEC/EN 60947-4-1
* TEST and STOP function - Trip indication on the front
* Temperature compensation
* Suitable for three- and single-phase applications
Product identifiers
SKU: 1SAZ721201R1028
Specifications
| Release class | CLASS 10 |
| Mounting method | Direct attachment |
| Reset function input | no |
| Adjustable current range | |
| Reset function automatic | yes |
| Reset function push-button | yes |
| Max. rated operation voltage Ue | 690 |
| Type of electrical connection of main circuit | Screw connection |
Documents
Deeplink product page
Deeplink REACH
2CMT2021-006202 - signed.pdf
Dimensioned drawing
2CDC001079B0201_Rev B_MSS 2D and 3D files for CAD systems.pdf
Instructions for use
2CDC106022M6802 g TF42_TF42B_72dpi.pdf
Product data sheet
Declaration RoHS
2CMT2021-006277_Contactors_revC.pdf
Declaration DOC CE (Declaration of conformity CE)
1SAD101100-3503.pdf
Declaration EPD (Environmental Product Declaration)
1SAC200373H0001_ABB_TF42_PEP.pdf