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Square D B15.5 Thermal Unit

MFG Part #: B15.5
UPC: 78590158751 78590158751
Online Part #: 56914

Description

Thermal units are intended to protect motors, controllers, and branch-circuit conductors against excessive heating due to prolonged motor overcurrents 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. 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.

Detailed Information

Make and Model

Online Part #: 56914
MFG Name: Schneider Electric

Specification

Reset Type: MANUAL
Type: THERMAL - MELTING ALLOY THERMAL UNIT
Application: FOR USE IN MELTING ALLOY THERMAL OVERLOAD RELAYS
Sub Brand: SCHNEIDER ELECTRIC
Trip Type: STANDARD TRIP- CLASS 53
Prop65_Warning: 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

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