The Square D A5.30 thermal unit protects motors, controllers, and branch circuit conductors from excessive heating due to prolonged motor over currents, including locked rotor currents. Class 20 thermal units respond to overload current conditions according to trip curves, tripping in 20 seconds or less. It features a one-piece construction and is for use in melting alloy thermal overload relays.
Cannot be reset until cooled
Melting Alloy Thermal Units
Calibration is set for a range of motor full load currents
Product Highlights
Provides overload protection for most motors. Repeated tripping does not affect the original calibration.
Product Information
Standard Information
Brand: SQUARE D
Manufacturer Part Number: A5.30
Country of Origin: Mexico
Technical Specifications
Type
THERMAL - MELTING ALLOY THERMAL UNIT
Brand
Square D
Sub Brand
SCHNEIDER ELECTRIC
Trip Type
Class 20, Standard
Reset Type
MANUAL
Applications
FOR USE IN MELTING ALLOY THERMAL OVERLOAD RELAYS
Catalog Number
A5.30
Manufacturer
Schneider Electric
Country of Origin
Mexico
Made in USA
No
UPC
785901585350
GTIN
00785901585350
Full Load Amps
3.71 to 4.07
Sensing Method
Melting Alloy
Motor Tripping Class
20
Thermal Overload Type
melting alloy
Series
A
Model / MPN
A5.30
Product Type
ELECTRONIC_COMPONENT
Product Group
BISS
Motor FLA
4.25 to 4.62 Ampere (1 Thermal Unit), 4.17 to 4.51 Ampere (2 Thermal Unit), 3.86 to 4.16 Ampere (3 Thermal Unit)
Mounting
Plug-In
Standard Package
6
Used On
AC Magnetic Starter
Volts
480
Trip Range
3.71-4.07
Protection
Thermal
For Use With
Thermal Overload Relays, Magnetic Motor Starters and Motor Controls