BRAND: All SETsafe | SETfuse products are derived from SETsafe | SETfuse’s own brand “SETsafe | SETfuse”
CUSTOMIZATION: Customers can customize Products, Technical Specifications and Circuit Protection Solutions at SETsafe | SETfuse (subject to communication between the two parties)
UPDATE: The information on SETsafe | SETfuse’s official website is the latest version, so feel free to purchase
All SETsafe | SETfuse products are derived from SETsafe | SETfuse’s own brand “SETsafe | SETfuse”.
CUSTOMIZATION:
Customers can customize Products, Technical Specifications and Circuit Protection Solutions at SETsafe | SETfuse (subject to communication between the two parties).
UPDATE:
The information on SETsafe | SETfuse’s official website is the latest version, so feel free to purchase.
idea Thermal CutOff (iTCO) is a fuse that uses low melting point alloys as the electrical connection point of the main circuit, with built-in heater as the control circuit, to achieve controlled fusing function. idea Thermal CutOff (iTCO) is consist mainly of Thermal Element, Electrode, Flux Resin, Feed Heater, Alloy Thermal-Link and Lead wire, sealed in plastic or ceramic housings.
idea Thermal CutOff (iTCO) is mainly used in the protection of new energy security, and secondary protection for charging and discharge circuits. idea Thermal CutOff (iTCO) mainly uses two electrodes which are connected with the thermal element of the fusing elements as electrical connections with passive temperature-sensing fusing actions. At the same time, Built-in heater with independent over-temperature protection heats the thermal element, provides sufficient heat to the fuse, cuts off the main circuit and disconnects the control circuit to achieve self-protection.
SETsafe | SETfuse idea Thermal CutOff (iTCO) covers Rated Current from 20 to 270 A, Rated Voltage from 80 to 500 VDC, Rated Functioning Temp. 136 to 150 °C, with UL, cUL, TUV Approvals and RoHS, REACH compliant.
iTCO
idea Thermal-Link
After receiving control signals to fuse the protector.
TCO
Thermal-Link
A non-resettable device incorporating a THERMAL ELEMENT which will open a circuit once only when exposed for a sufficient length of time to a temperature in excess of that for which it has been designed.
ATCO
Alloy Thermal-Link
Alloy Type Thermal-Link, Alloy is the thermal element.
FH
Feed Heater
Electric appliances that use electric energy to achieve heating effect.
MC
Main Circuit
All conductive components used in switching devices for closing or disconnecting circuits in a circuit.
CC
Control Circuit
In addition to the main circuit, all conductive parts of the switching apparatus used in the access circuit as the closing operation and / or opening operation of the switching apparatus.
Ir
Rated Current
The current used to classify an iTCO, which is the Maximum current that iTCO allows to carry and is able to cut off the circuit safely.
Ur
Rated Voltage
The voltage used to classify an iTCO, which is the Maximum voltage that iTCO allows to carry and is able to cut off the circuit safely.
Tf
Rated Functioning Temp.
The temperature of the Thermal-Link which causes it to change the state of conductivity with a detection current up to
10 mA as the only load.
Tolerance: Tf 0 / -10 °C (GB 9816, EN 60691, K60691).
Tolerance: Tf ± 7 °C (J60691).
Fusing Temp.
Fusing Temp.
The temp. of the iTCO which causes it to change its state of conductivity is measured with silicone oil bath in which the temp. is increased at the rate of ( 0.5 to 1) °C /minutes, with a detection current less than 10 mA as the only load.
Th
Holding Temp.
The Maximum temp. at which a iTCO will not change its state of conductivity when conducting rated current for 168 h.
Tm
Maximum Temp. Limit
The temp. of the iTCO stated by the manufacturer, up to which the mechanical and electrical properties of the iTCO having changed its state of conductivity, will not be impaired for a given time.
Stud, Soldering
Axial
● Battery Control Unit Fail Protection
● High Power Solid State Relays
● PTC Heaters
View Product Structure, Principle, Application Video
SETsafe | SETfuse Quality Policy
Provide Industry-Leading Products
Raw-materials Supplier
Select critical raw materials: Must be from a manufacturer with quality management system (ISO9001, IATF16949) certification.
Formulate corresponding incoming inspection specifications (01-QA-06 Incoming Inspection Management Procedure) for each key materials according to design data such as material technical specification.
Testing Equipment and Tools
Projector, Tool Microscope, Salt Spray Tester, Universal Material Testing Machine, Spectrum Analyzer, etc.
Manufacturing Process
Online Inspection and Testing.
Document
Process Flow Chart.
Failure Mode and Effects Analysis (FMEA).
Quality Control Flow Chart (QCFC).
Inspection Specification for Process, Inspection Specification for Finished Good (SIP).
Work Instruction (WI).
Online Testing and Inspection
Resistance test system (100%).
100% Visual inspection.
etc.
IPQC(In Process Quality Control) Inspection
AQL(MIL-STD-105E), Dimensions Inspection, Function Test, Visual Inspection.
Including 26 items of Appearance Requirements, Temperature Characteristics, Electrical Performance, Mechanical Performance, Soldering Performance, Environmental Test and Life Test.e.g.
1. When atmosphere pressure is from 80 kPa to 106 kPa, the related altitude shall be from 2000 meter to - 500 meter.
2. Operating voltage less than rated voltage of iTCO, operating current less than rated current of iTCO.
3. Do not touch the iTCO body or leads directly when power is on, to avoid burn or electric shock.
Electrical Connections
Mechanical Connection MC
1. The product surface must not be damaged.
2. If adding terminals to electrode leads, make sure the electrode without grease or other foreign matters, and use the same cross-section connection terminal, otherwise the electrode may heat abnormally.
3. If locking with screw, to prevent loosening, please add gasket and use proper screw when installing the product. Ensure that the screw tightening torque meets the requirements.
Soldering CC
1. Soldering should be carried out under the soldering conditions listed in table-1.
2. Feed heater and remote signal CC contain thermal element , improper soldering operation (too high soldering temperature , too long soldering time, too short lead wire etc.) may cause CC to open in advance.
3. When soldering conditions are more severe than those listed in table-1 , a heat sink fixture should be used between solder point and iTCO body.
TABLE-1 Hand - Soldering Time (s)
Test Methods
Cold Resistance Test
1. If product TCR is not less than 350 E (-6) / °C and the test ambient temperature is during 15 °C to 35 °C, the measured resistance value shall be corrected as the relative resistance value under 25 °C according to TCR formula.
2. Resistance Measurement (4-wire).
Replacement
iTCO is the non-resettable product, for safety sake, please use the same type of iTCO for replacement.
Storage
Please store the iTCO without high temperature , high humidity or corrosive gas. To avoid influencing the solder-ability of the leads and influencing contact resistance, please use them up within 1 year after receiving the goods.
Over Temperature Protection（80）
Over Voltage Protection（228）
Over Current Protection（53）
Active Protection（15）
Accessories（2）
