Square D™ A21.3 Melting Alloy Thermal Unit
Overload Heaters
33922
MFG #: A21.3
Square D™
24.46000
/ ea
Square D A21.3 THERMAL UNIT,40C ambient rated,600VAC,Dependant on overload relay,For use in melting alloy thermal overload relays,Manual,NEMA Overload relays,Schneider Electric Standard Trip- Class 20,Thermal - Melting Alloy Thermal Unit
- 360 Degree View URL - index.html?pid=11003&id=8103004360Den&ext=webp(360 Degree View URL)
- Brochure URL - 1dd055d407a404cf0573a71104eb1e47aed1cd07.pdf(Brochure URL)
- Compliance Cert URL - Square_D_A21_3_Compliance_Certificate.pdf(Compliance Cert URL)
- Seller Home Page URL - us(Seller Home Page URL)
- Spec Sheet 1 URL - Square_D_A21_3_Specification_Sheet.pdf(Spec Sheet 1 URL)
- Spec Sheet URL - 11003_NRYKJOLP0I8Q52V9.pdf(Spec Sheet URL)
- Tech Drawing URL - 11003_4GEF3ABROW7NTJS0.pdf(Tech Drawing URL)
- Applications
- Features
| FOR USE IN MELTING ALLOY THERMAL OVERLOAD RELAYS |
| NEMA OVERLOAD RELAYS |
| Melting Alloy Thermal Units |
| One-piece thermal unit construction |
| Provides overload protection for most motors |
| Calibration is set for a range of motor full load currents |
| Repeated tripping does not affect the original calibration |
| Cannot be reset until cooled |
| Melting alloy thermal units are available in three designs: standard trip (Class 20) slow trip (Class 30) quick trip (Class 10) |