Fixed Contact for AC Contactor, Moving Contact

• Contact Mode: Fixed Contact
• Certification: CCC, RoHS, FCC, ISO, CE
• Transport Package: Carton
• Specification: 28*23*15
• Trademark: HY
• Origin: China
• Model NO.: 7*1.4+5.5*2.8R
• HS Code: 8538900000
• Production Capacity: 1000000000

Product Description

 Triple composite silver electrical contacts

Electrical contacts factory, more than 28 years manufacture experience, attained ISO9001-2015, work on OEM and ODM projects.

 

2. Application of the electrical contacts
Electrical contact mainly used in various of switches, relays, contactors, circuit breakers, etc.

1. Main Materials for electrical contact

Main face Materials: Ag, AgNi, AgCdO, AgSnO₂, AgSnO₂ln₂O_3, AgZnO,
Main base materials: Cu.
1.Specification of the electrical contacts
Dimensions can be customized

	Head diameter	Head thickness	Foot diameter	Foot length	Sphere radius
Item	D(mm)	T(mm)	d(mm)	L(mm)	R(mm)
Basic dimension	2~8	0.15~3.00	0.75~6.00	0.45~8.56	1.2~40
tolerance	±0.05	-0.02∽	-0.02∽	±0.05	±2
		0.05	0.1

 SILVER TIN OXIDE/SILVER TIN OXIDE INDIUM OXIDE

AgSnO2 is the best material for substitution of AgCdO. It has very good welding resistance and arc erosion resistance, and has been widely applied to contactors, universal relays, magnetic latching relays and automobile relays.

Mechanical and Physical Properties of the Materials

Designation	Material	Density	Resistivity	Hardness	Tensile	Elongation	Applications
		g/cm3	μΩ·cm	HV 0.3	Strength	%
					MPa
STA07	AgSnO2(12)	9.75	2.25	70~80	250~270	20	AC contactors
STA08	AgSnO2(12)	9.75	2.25	75~90	270~300	20
STA09	AgSnO2(14)	9.65	2.35	80~100	290~320	15
STC05	AgSnO2(10)	9.85	2.15	80~90	290~320	20	Middle and small relays and switches
STC08	AgSnO2(12)	9.8	2.2	90~110	300~330	20	magnetic latching relays, AC contactors, and leakage protection devices
STC09	AgSnO2(12)	9.75	2.25	90~110	280~300	20
STC15	AgSnO2(14.5)	9.6	2.45	85~100	280~310	18
STC16	AgSnO2(16)	9.5	2.5	80~100	280~300	20
STC17	AgSnO2(12)	9.75	2.25	80~95	280~310	25
STD05	AgSnO2(10)	9.85	2.15	90~110	230~260	28	Middle and small universal relays
STD08	AgSnO2(12)	9.75	2.25	85~100	270~300	25
SIE06	AgSnO2(7)In2O3(3)	9.9	2.15	80~90	300~330	28	Automobile relays and universal relays
SIE08	AgSnO2(8)In2O3(4)	9.8	2.25	90~100	310~340	25
SIE09	AgSnO2(10)In2O3(4.5)	9.65	2.35	95~110	320~350	23

Microsections