Thermal Unit, Type S, Type A, melting alloy, Class 20

THERMAL UNIT

SQDA.49 A.49 785901585091
29.32 / EACH
http://schema.org/OutOfStock
Mayer-DDS-Thermal Unit, Type S, Type A, melting alloy, Class 20-3
  • Warranty Length: 18 mth
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.
QTY
  • Product Description
  • Features
  • Specifications
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.
  • Prop 65
    • WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
  • Important Information Attributes
    • Persona Type Ids : EU, LC, OM, OM8, PB, SC
    • Persona Type Names : End User, Contractor, Original Equipment Manufacturer, OEM - Control Panelbuilder, Panel Builder, Electrician
    • Market Segmentation Id : COMMERCIAL, INDUSTRIAL
    • Market Segmentation : Commercial, Industrial
    • Carbon Footprint Of The Distribution Phase A4 : 0.015062784881700087, 0 kg CO2 eq.
    • Carbon Footprint Of The End Of Life Phase C1 To C4 : 0 kg CO2 eq., 0.02152658808101991
    • Carbon Footprint Of The Installation Phase A5 : 0.0060760025185404255, 0 kg CO2 eq.
    • Carbon Footprint Of The Manufacturing Phase A1 To A3 : 0.1 kg CO2 eq., 0.09658369691863965
    • Carbon Footprint Of The Use Phase B2 B3 B4 B6 : 13 kg CO2 eq., 12.638798994081128
    • Local Data Status : Publishable
    • Local Publishable Date : 2025-11-13
    • HTML Description : Starter Thermal Unit:Type: A
    • Manufacturer : Schneider Electric
    • Legacy WEEE Scope : Out
    • Scope Perimeter : Outside of Europe
    • EOLI Availability Display : No need of specific recycling operations
    • Reach Full Compliance Status : Reference contains Substances of Very High Concern above the threshold
    • Reach Full Compliance Status Id : CONTAINS_SVHC
    • Reach Compliance Directive : Reference contains Substances of Very High Concern above the threshold
    • ROHS EUR In Scope : No
    • ROHS EUR Status : Compliant with Exemptions
    • ROHS EUR Full Compliance Status : Pro-active compliance (Product out of EU RoHS legal scope)
    • ROHS EUR Full Compliance Status Id : PRO_ACTIVE_COMPLIANCE
    • China ROHS In Scope : No
    • With Recycled Cardboard : Yes
    • Without Single Use Plastic : Yes
    • Product Contributes To Saved And Avoided Emissions : No
    • Return Indicator : Y
    • WD Status : A - SELECTED - PCE ONLY (Migration)
    • Function Option Id : STANDARD
    • Function Option : Standard
    • Energy Efficiency Optimized : False
    • Load Current : 0.39-0.40 A
    • Package Weight Lbs : 18.144 g
    • Product Availability : Stock - Normally stocked in distribution facility
    • Range Of Product : A
    • Returnability : Yes
    • Sustainable Packaging : No
    • Thermal Overload Type : melting alloy
    • Total Lifecycle Carbon Footprint : 13 kg CO2 eq.
    • Relationship Type : Compatible relationship
    • Pep Code : ENVPEP2508030EN
    • Pep Verification Date : 2025-10-08
    • PCR Version : PEP-PCR-ed4-2021 09 06
    • PSR Version : PSR-0005-ed3.1-EN-2023 12 08
    • Type Of Verification For The Pep : Independent internal review
    • Functional Unit Description : Other 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.
    • Functional Unit Unit : unit
    • Product Kit Identifier : N
    • Product Manager : STEVEN NATALE
  • Environment Attributes Main
    • EU ROHS Directive : Compliant By Exemption​, Pro-active compliance (Product out of EU RoHS legal scope)
    • ROHS Exemption Information : Yes
    • Take Back : No
    • Recycled Metal Content At Cr Level : 0 %
    • China ROHS Regulation : Product out of China RoHS scope. Substance declaration for your information.
    • Mercury Free : Yes
    • Carbon Footprint : 12.778048066481029
    • Environmental Disclosure : ENVPEP2508030EN
    • Packaging Made With Recycled Cardboard : Yes
    • Packaging Without Single Use Plastic : Yes
    • Reach Regulation : Reference contains Substances of Very High Concern above the threshold
    • Pep Code : ENVPEP2508030EN
    • Pep Verification Date : 2025-10-08
    • PCR Version : PEP-PCR-ed4-2021 09 06
    • PSR Version : PSR-0005-ed3.1-EN-2023 12 08
    • Type Of Verification For The Pep : Independent internal review
  • Contractual Warranty Attributes
    • Warranty Period : 18 months
    • Warranty : 18 months
  • General Attributes
    • Range Of Product : A