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ABB - 1SAZ741201R1055 + TF42-38B Thermal Overload Relay for Railway Trip class 10, 35.0-38.0/40.0 A

  1. ABB Low Voltage & Systems
  3. Low Voltage Products & Systems
  5. Control Products
  7. Contactors
  9. Thermal Overload Relays
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Company
ABB Low Voltage & Systems
Description
TF42 - Thermal Overload Relays
Bill of material
ABB - 1SAZ741201R1055 + TF42-38B Thermal Overload Relay for Railway Trip class 10, 35.0-38.0/40.0 A
Product ID
1SAZ741201R1055
Extended Product Type
TF42-38B
Invoice Description
TF42-38B Thermal Overload Relay for Railway Trip class 10, 35.0-38.0/40.0 A
Description
Thermal Overload Relay
Long Description
The TF42-B thermal overload relays are economic electromechanical protection devices for the main circuit, complying with the latest railway rolling stock standards and allowing installation in passengers or driver cabins for trains frequently operating tunnels or undergrounds. They offer a 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 – designed in accordance to the applicable parts of IEC 60077 standard – shocks and vibration withstand conforming to IEC 61373 (category 1, class B) – usable according to European fire and smoke safety standard EN 45545-2
International product number
4013614517228
Product number of the Manufacturer
1SAZ741201R1055
Adjustable current range
35 - 38 A
Max. rated operation voltage Ue
690 V
Mounting method
Direct attachment
Type of electrical connection of main circuit
Screw connection
Number of auxiliary contacts as normally closed contact
1
Number of auxiliary contacts as normally open contact
1
Number of auxiliary contacts as change-over contact
1
Release class
CLASS 10
Reset function input
false
Reset function automatic
true
Reset function push-button
true
Customs tariff number
85364900
Deeplink product page
 Link to product detail page
Type
TF42
Procurement
Last updateMay 21, 2025, 4:59 PM
Part number1SAZ741201R1055
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Last update: May 21, 2025, 4:59 PM
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Classifications
CNS
Object Properties:
Order Number: 1SAZ741201R1055
Description long: The TF42-B thermal overload relays are economic electromechanical protection devices for the main circuit, complying with the latest railway rolling stock standards and allowing installation in passengers or driver cabins for trains frequently operating tunnels or undergrounds. They offer a 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 – designed in accordance to the applicable parts of IEC 60077 standard – shocks and vibration withstand conforming to IEC 61373 (category 1, class B) – usable according to European fire and smoke safety standard EN 45545-2
Description short: TF42-38B Thermal Overload Relay for Railway
Manufacturer / brand name: ABB
Product website: https://new.abb.com/products/ABB1SAZ741201R1055
Customs Tariff Number: 85364900
GTIN-Code: 4013614517228
ETIM 8.0
Thermal overload relay:
Mounting method: Direct attachment
Number of auxiliary contacts as normally open contact: 1
Number of auxiliary contacts as normally closed contact: 1
Number of auxiliary contacts as change-over contact: 1
Release class: CLASS 10
Type of electrical connection of main circuit: Screw connection
Max. rated operation voltage Ue: 690 V
Adjustable current range: 35 - 38 A
Reset function input: false
Reset function automatic: true
Reset function push-button: true
ETIM 9.0
Thermal overload relay:
Mounting method: Direct attachment
Number of auxiliary contacts as normally open contact: 1
Number of auxiliary contacts as normally closed contact: 1
Number of auxiliary contacts as change-over contact: 1
Release class: CLASS 10
Type of electrical connection of main circuit: Screw connection
Max. rated operation voltage Ue: 690 V
Adjustable current range: 35 - 38 A
Reset function input: false
Reset function automatic: true
Reset function push-button: true
eclass
27-37-15-01 - Thermal overload relay:
Lowest value adjustable current range: 35 - 38 A
Release class: CLASS 10
Greatest value adjustable current range: 35 - 38 A
max. rated operating voltage Ue: 690 V
Number of auxiliary contacts as changer: 1
Number of auxiliary contacts as opener: 1
Number of auxiliary contacts as shutter: 1
Connection type: Screw connection
Assembly type: Direct attachment