Пониженного напряжения и перенапряжения Защита jqx 52f 40amp 12vdc 24vdc 220v 110v однополюсный отказ тока автомат защити цепи

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Количество:

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Описание и отзывы

Характеристики









Main Parameters
Contact Arrangement
1A、1B、1C
Contact Material
Silver Alloy
Contact Resistance
Max.50mΩ

Rated Load
40A 250VAC
40A 28VDC
Max. Switching Voltage
28VDC/250VAC
Max. Switching Current
40A
Max. Switching Power
1120W/10000VA
Electrical Life
2×104
Mechanical Life
1×106

Coil Power Consumption
(DC)
3.0W
(AC)
4.2VA

Coil Voltage
(DC)
6~220VDC
(AC)
6~220VAC


Other Parameters
Pick-up Time
Max.25ms
Release Time
Max.25ms

Dielectric Strength
Coil Contacts
2000VAC ,(50/60Hz), 1 min.
Open Contacts
1500VAC ,(50/60Hz), 1 min.
Insulation Resistance
Min. 1000MΩ (500 VDC)
Environment Temperature
-40℃~+55℃
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.
(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.


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