Wanjia OEM Service 12VDC 1A 1b 1c 12V 30AMP Relay
China Wanjia OEM Service 12VDC 1A 1b 1c 12V 30AMP Relay, Find details about China Relays, Jqx 40 from Wanjia OEM Service 12VDC 1A 1b 1c 12V 30AMP Relay
Basic Info.
Model NO.
WJ178B
Protective Characteristics
Open Relay
Action Principle
Electromagnetic Type
Size
Miniature
Type
Electric Parameter Relay
Product Name
12VDC 1A 1b 1c 12V 30AMP Relay
Part Number
Wj178b
Max Current
30A
Contact Arangement
1A,1b,1c/ No, Nc, Transfer
Contact Capacity
28VDC,250VAC
Coil Voltage
6~220VDC;6~220VAC
Contact Material
Agsno2
Weight
110.0g
Mounting Method
Screw Fasten
Trademark
wanjia star
Transport Package
100PCS in 1 Carton
Specification
68*45*43mm
Origin
Zhejiang, China
HS Code
8536411000
Model NO.
WJ178B
Protective Characteristics
Open Relay
Action Principle
Electromagnetic Type
Size
Miniature
Type
Electric Parameter Relay
Product Name
12VDC 1A 1b 1c 12V 30AMP Relay
Part Number
Wj178b
Max Current
30A
Contact Arangement
1A,1b,1c/ No, Nc, Transfer
Contact Capacity
28VDC,250VAC
Coil Voltage
6~220VDC;6~220VAC
Contact Material
Agsno2
Weight
110.0g
Mounting Method
Screw Fasten
Trademark
wanjia star
Transport Package
100PCS in 1 Carton
Specification
68*45*43mm
Origin
Zhejiang, China
HS Code
8536411000
Product Desciption
| Main Parameter | ||
| Contact Arrangement | 1A,1B,1C | |
| Contact Material | Silver Alloy | |
| Contact Resistance | Max.50mΩ | |
| Rated Load | 30A 250VAC | |
| 30A 28VDC | ||
| Max. Switching Voltage | 28VDC/250VAC | |
| Max. Switching Current | 30A | |
| Max. Switching Power | 840W/7500VA | |
| Electrical Life | 2×104 | |
| Mechanical Life | 1×107 | |
| Coil Power Consumption | DC | 3.0W |
| AC | 3.2VA | |
| Coil Voltage | DC | 6~220VDC |
| AC | 6~220VAC | |
| Other Parameters | ||
| Pick-up Time | Max.25ms | |
| Release Time | Max.25ms | |
| Dielectric Strength | Coil Contacts | 2500VAC ,(50/60Hz), 1 min. |
| Open Contacts | 1500VAC ,(50/60Hz), 1 min. | |
| Insulation Resistance | Min. 1000MΩ (500 VDC) | |
| Environment Temperature | -40ºC~+55ºC | |
| Operation Humidity | 45%~85% RH | |
| Shock Resistance | Functional | Min. 10G |
| Destructive | Min. 100G | |
| Anti-vibration | Functional | 1.5mm(DA)10~55 Hz |
| Destructive | 1.5mm(DA)10~55 Hz | |
| Weight | ≤110g | |
Cautions of Power Relay:
1.Suggestions of Plastic Anti-dust Cover
We highly recommend cover :(1)When the ambient humidity is ≥ 60% (for example refrigerator or some country like Indian), the metal parts of relay will be weakened in different degrees
due to long-term exposure to the outdoors in terms of electrical conductivity and service life.
(2)When the dust density is high in the environment, all kinds of impurities carried in the dust (such as gravel), if gravel is embedded between contacts.
Firstly, it will affect the normal opening and closing of contacts;Secondly, part of the silicon oxide can be used as a semiconductor to conduct electricity,
and then the relay's on and off will fail if no anti-dust cover.
(3)When corrosive gases are serious in the environment, it will accelerate the metal aging, greatly affecting the service life of electrical relays.
* When none of the above situations exists, the plastic anti-dust cover is not necessary due to extra cost.
2.Suggestions of Contacts
(1)We should pay attention to prevent contact movement, adhesion, abnormal consumption, increase of contact resistance and other fault phenomena while using.
(1)We should pay attention to prevent contact movement, adhesion, abnormal consumption, increase of contact resistance and other fault phenomena while using.
(2)The material of power relay can be AgCd010,AgSn08,AgSnOlnO etc.Wanjia star brand relay adopted AgSnO2 with high quality & stable performance.
(3)The mechanical service life and electrical service life can be main factor too.
* In a word, good device need good relay to low the repairing rates and improve the endurance.
(3)The mechanical service life and electrical service life can be main factor too.
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