Specifications

A fusible link is a mechanical part that breaks at a preset
temperature, they are used in fire detection system
Type : 5EJ

Main features: A fire detection fusible link is a mechanical component that breaks at a preset temperature.
They are used in fire protection systems to open and close doors, vents, dampers, valves if the ambient temperature exceeds a certain value.

 

 

 

*Maximum permanent load depends of alloy composition and ambient temperature.
Values in this collumn are given for guidance only, and for a 70-72°C alloy.
The following formula can be used as a first estimation of values:
L= S/10, with L= maximum permanent load in DaN at temperature T<Tc, and S= Average welding surface in mm².
Some links with separating bumps or ramps may have sligthly higher values.
Specific testing for a combination of alloy and fusible link type is made on request.

 

References codification
Fusible links are usually identified with coded manufacturing date, rated functioning temperature Tf in °C, manufacturer’s logo
or name (JPC, JPCI, Ultimheat). A color code spot can be added on request, for customer using various temperatures of the samelink type.
Standard functioning temperatures*

Tf(°C)	47	65	68	70-72	92	96	103	120	138	175	182	221	227	280	327
Tc(°C)	25	40	42	45	66	71	77	94	110	145	152	187	195	245	288
Tf(°F)	115	150	155	165	195	205	220	250	280	350	360	430	440	540	620
Tc(°F)	77	104	108	113	151	160	171	201	230	293	306	369	383	473	550

Tc (Holding temperature): the fusible link must not open or be destroyed when subjected to a temperature equal to Tc-6 °C
(Tc-11°F) for a period of 168 hours under nominal strength
Tf (Rated functioning temperature): It is the opening temperature of the fusible link in a calibration oven, when subjected to a
strength equal to 1/10 of its nominal value, when temperature rises at a speed of 0.5 to 1°C / min (1 to 2°F/min). The opening
temperature must not be lower than Tf-10°C or above Tf.
Tf value is printed on the fusible link
Fuses frame material: Unless otherwise specified, the fuses are made of brass without plating.
Upon request, they can be made of copper or steel, with plating (tin or zinc)
Welding: the welds are performed by induction in order to ensure complete melting of the alloy between the metal parts
Development: we carry all models according to customers drawings and achievable quality control specifications are available
on request (depending on the specifications of the country of use)
*Most of these alloy use lead and cadmium .Many other temperatures are available, consult our engineering department
Available temperatures using alloys without lead or cadmium: 60, 72, 79, 139 °C (Ternary alloys of Bismuth, Indium and tin.
consult engineering department for MOQ and technical specs)
Eutectic alloys
A eutectic alloy is a mixture of chemical elements that has a single chemical composition that solidifies at a lower temperature
than any other composition made up of the same ingredients.
This composition is known as the eutectic composition and the temperature is known as the eutectic temperature.
A eutectic alloy solidifies at a single, sharp temperature and when it melts it does so at a single temperature
Alloys used in fusible links in our standard temperature ranges are eutectic, and their melting temperature (liquidus) and freezing
temperature (solidus) are the same, without plastic melting range.
When a non-eutectic alloy solidifies, its components solidify at different temperatures, exhibiting a plastic melting range, and
when they are used in fusible links there is no accuracy in the breaking temperature.
In some specific applications, because there is no existing eutectic alloy available for the temperature requested by a customer,
we are then obliged to use non eutectic alloys. In this case we cannot guarantee the breaking temperature accuracy

 

 

JPCI Controls (Foshan Gaoming) Co., Ltd

Member of Ultimheat alliance

Ultimheat is a registered trademark, all rights reserved

Contact : Michelle Mai

T: +86 757 88638729

F: +86 757 88681850

Website:

 

Company profile:

Established in China since 2000, with French technology and investment, our company is proud to have more than 60 years experience in manufacturing electromechanical components and 30 years experience in manufacturing safety component for Spas, swimming pools and hot tubs. This experience, combined with high tech equipment and high tech raw materials let us develop the new components needed by rapid expansion of Asian and Chinese market.
In our new factory, on more than 8000 square meters production lines, we have two manufacturing divisions:
Division one is producing components:
Thermostats, energy regulators pressure switches, level switches, flow switches, fire detection fusible links, heating elements and ceramic connection blocks.
Division two is producing complete assemblies and sub assemblies on customer specifications:

Swimming pools heaters, heat pumps backup heaters, spas heaters, small water heaters, immersion heaters, aluminum foils heaters, baseboard and convection heaters sub assemblies
Our R&D team develops new products upon customer specification, taking care of international safety standard (UL, CE, etc.).
We produce our own stamping, bending, plastic injection, zinc alloy injection, and machining.
We are equipped with up to date automatic and CNC TIG welding and laser welding equipment and ultrasonic welding checking.
We have our own climatic room, corrosion testing loops, salt spray testing, and more than 30 specific equipments for products life testing.
Our income quality control laboratory is equipped to check raw material (plastics, metals) physical characteristics and dimensions.
Our finished product control laboratory has more than 200 machines to calibrate and check temperature, pressure, level and flow controls.
From the raw material to the finished product we control every production step. Meet your control equipment demand rapidly and safely is our consistent promises. 

 

Basic Information

	Product/Service Sell):	Flow switches, level switch,pressure switch, thermostat,heating elements, back up heaters for heat pumps
	Number of Employees:	200 to 300 People

Trade & Market

	Main Markets:	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe Central America Northern Europe Southern Europe South Asia Domestic Market
	Total Annual Sales Volume:	US$2.5 Million - US$5 Million
	Export Percentage:	60%

Factory Information

	Factory Size (ters):	10,000 square meters
	Factory Location:	Datian Cunkou, Fuwan industrial zone,Gaoming of Foshan, Guangdong province,China.
	Number of Production Lines:	15
	Number of R&D Staff:	5-10
	Number of QC Staff:	more than 15 People
	Management Certification:	ISO9001/14001
	Contract Manufacturing:	Customized products on request (MOQ apply), OEM developments welcome.