Square D A.54 Thermal Unit, Type S, Type A, melting alloy, Class 20
Square D A.54 Thermal Unit, Type S, Type A, melting alloy, Class 20
- MPN: A.54
- PPN: SCH-A.54
- UNSPSC: 39122330
Spec sheet
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Description
Thermal units are intended to protect motors, controllers, and branch circuit conductors against excessive heating due to prolonged motor over currents up to and including locked rotor currents. Protection of the motor and the other branch circuit components from higher currents, due to short circuits or grounds, is a function of the branch circuit fuses or circuit breakers. Class 20 thermal units respond to overload current conditions according to trip curves. These thermal units will trip in 20 seconds or less on overload conditions. The proper thermal unit is selected using the motor full load current and a selection table. These thermal units have a one piece construction. The motor current passes through a small heater winding within these thermal units. Under overload conditions, the heat causes a special solder to melt allowing a ratchet wheel to spin free thus opening the control circuit contacts and opening the motor contacts.
Specifications
Important Information Attributes
- Carbon Footprint Of The Distribution Phase A4
- 0.015062784881700087, 0 kg CO2 eq.
- Carbon Footprint Of The Installation Phase A5
- 0.0060760025185404255, 0 kg CO2 eq.
- Carbon Footprint Of The Use Phase B2 B3 B4 B6
- 13 kg CO2 eq., 12.638798994081128
- Local Publishable Date
- 2025-11-13
- Manufacturer
- Schneider Electric
- Scope Perimeter
- Outside of Europe
- ROHS EUR In Scope
- No
- ROHS EUR Full Compliance Status
- Not applicable, out of EU RoHS legal scope
- With Recycled Cardboard
- Yes
- Product Contributes To Saved And Avoided Emissions
- No
- WD Status
- L - LOB initialized
- Package Weight Lbs
- 9.072 g
- Range Of Product
- A
- Sustainable Packaging
- Yes
- Total Lifecycle Carbon Footprint
- 13 kg CO2 eq.
- Pep Code
- ENVPEP2508030EN
- PCR Version
- PEP-PCR-ed4-2021 09 06
- Type Of Verification For The Pep
- Independent internal review
- Functional Unit Unit
- unit
- Product Manager
- STEVEN NATALE
Carbon Footprint Of The End Of Life Phase C1 To C40 kg CO2 eq., 0.02152658808101991
Carbon Footprint Of The Manufacturing Phase A1 To A30.1 kg CO2 eq., 0.09658369691863965
Local Data StatusPublishable
HTML DescriptionStarter Thermal Unit:Type: A
Legacy WEEE ScopeOut
EOLI Availability DisplayNo need of specific recycling operations
ROHS EUR StatusWill not be Compliant
China ROHS In ScopeNo
Without Single Use PlasticYes
Return IndicatorY
Energy Efficiency OptimizedFalse
Product AvailabilityNon-Stock - Not normally stocked in distribution facility
ReturnabilityYes
Thermal Overload Typemelting alloy
Relationship TypeCompatible relationship
Pep Verification Date2025-10-08
PSR VersionPSR-0005-ed3.1-EN-2023 12 08
Functional Unit DescriptionOther switchgear and controlgear solutions mentioned in the scope (e.g. fuses TC32, all-or-nothing relays TC94, Measuring relays and protection equipment TC95), apply the general rules of PCR and mention in the accompanying report the functional unit, the reference product characteristics, the reference lifetime and the use scenario which are applied consistently with the relevant IEC technical standards.
Product Kit IdentifierN
Environment Attributes Main
- EU ROHS Directive
- Not Applicable/Out of Scope?, Not applicable, out of EU RoHS legal scope
- Recycled Metal Content At Cr Level
- 0 %
- Carbon Footprint
- 12.778048066481029
- Packaging Made With Recycled Cardboard
- Yes
- Pep Code
- ENVPEP2508030EN
- PCR Version
- PEP-PCR-ed4-2021 09 06
- Type Of Verification For The Pep
- Independent internal review
Take BackNo
China ROHS RegulationProduct out of China RoHS scope. Substance declaration for your information.
Environmental DisclosureENVPEP2508030EN
Packaging Without Single Use PlasticYes
Pep Verification Date2025-10-08
PSR VersionPSR-0005-ed3.1-EN-2023 12 08
Contractual Warranty Attributes
- Warranty Period
- 18 months
Warranty18 months
General Attributes
- Range Of Product
- A
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