The Square D B0.44 thermal unit protects motors, controllers, and branch-circuit conductors against excessive heating due to prolonged motor overcurrents, including locked rotor currents. Class 20 thermal units respond to overload current conditions according to trip curves and trip in 20 seconds or less. It features a one-piece construction.
Protects motors from overheating
Protects controllers from overheating
Protects branch-circuit conductors from overheating
Trips in 20 seconds or less on overload conditions
Product Highlights
Protects motors, controllers, and conductors from overheating with a Class 20 trip type and one-piece construction.
Product Information
Standard Information
Brand: SQUARE D
Manufacturer Part Number: B0.44
Country of Origin: Mexico
Technical Specifications
Catalog Number
B0.44
Type
THERMAL - MELTING ALLOY THERMAL UNIT
Brand
Square D
Trip Type
Class 20, Standard
Reset Type
MANUAL
Applications
FOR USE IN THERMAL OVERLOAD RELAYS
Certifications
CE
Manufacturer
Schneider Electric
Country of Origin
Mexico
Made in USA
No
UPC
785901587200
GTIN
00785901587200
Motor FLA
0.35 to 0.38 Ampere (1 Thermal Unit), 0.3 to 0.32 Ampere (3 Thermal Unit)
NEMA Size
7, 8
Mounting
Plug-In
Used On
Overload Relay
For Use With
Square D NEMA Motor Starters
Product Type
Thermal Unit
Full Load Amps
0.30 to 0.38
Sensing Method
Melting Alloy
FL Amp @ 1-Ph/ Man. Size 0/ Standard Enclosure
0.36
FL Amp @ 1-Ph/ Man. Size 1/ Standard Enclosure
0.36
FL Amp @ 1-Ph/ Size 00,0,1/ Standard Enclosure
0.31
FL Amp @ 3-Ph/ Man. Size 0/ Standard Enclosure
0.32
FL Amp @ 3-Ph/ Man. Size 1/ Standard Enclosure
0.32
FL Amp @ 3-Ph/ Size 00,0,1/ Standard Enclosure
0.30
FL Amp @ 1-Ph/ Man. Size 1P/ Standard Enclosure
0.36
FL Amp @ 1-Ph/ Man. Size 0/ Open & Large Enclosure
0.38
FL Amp @ 1-Ph/ Man. Size 1/ Open & Large Enclosure
0.38
FL Amp @ 1-Ph/ Size 00,0,1/ Open & Large Enclosure
0.33
FL Amp @ 3-Ph/ Man. Size 0/ Open & Large Enclosure
0.32
FL Amp @ 3-Ph/ Man. Size 1/ Open & Large Enclosure
0.32
FL Amp @ 3-Ph/ Size 00,0,1/ Open & Large Enclosure
0.31
FL Amp @ 1-Ph/ Man. Size 1P/ Open & Large Enclosure
0.38
Series
S611 Series
Amperage
0.33-0.36
Protection
Thermal
Full Load Amp Range
0.33 to 0.36 A
Application
Motor Control
Construction
One-piece
Trip Time
20 seconds or less on overload
Compatible with
thermal overload relays and magnetic motor starters