Sealed Low Resistance Thermal Fuse BTT - 10A Series Thermal Cutoff

-LED lamps

-Solar Led street light

-Charger

-Micro heater

-High power solid

-Solar inverters

-E-ballast

-Transformer

-Home electrical products

-Surge protection devices

BTT-10A Series Thermal Cutoff

1.Features
With strong compact structures,high insulation

resistance and quickly heated advantages
can be quickly action
when the products work under innormal or cant be reset,can soon out off the power.

2.Application
Widely used in follow various fields such as transformer,Explosion line,Exhaust fan,fan and small

power motor charger,adeptor,Secondary battrery,Household combined with gas water heater lightings and various heater equipment and so on.

3.SCOPE
This Specification applies to BTT series Thermal Fuses.
1.1General Information
•Designed to EN60691( 72 °C–240 °C )
•RoHS compliant and HF

4. Part Numbering System

BT is product code.

6. Operating Principle

Loaded themetal shell with movable electrode,spring and heat-variable fusion cake for RY series
thermal fuse.Spring B is encased into it on the state of compression, that ’ scan make spring B use
copper backing to stand up to movable electrode in order to contact with lead A.In the state of normal
times,current will connect with lead B through lead A ,movable electrode and metal shell .

When the environment temperature is greater than action temperature.The heat which through
Lead and metal shell will make the heat-variable fusion cake meltin to liquid.At the same time,spring
A and B will repristination,so spring A will push the movable electrode to direction of spring B,that’ s
can cutoff the connection of spring A and cutoff the circuit .

7. ELECTRICAL SPECIFICATIONS