Ms485 40A 30A circuit breaker, cheaper price and long life

Main ParameterSpecificationMax Current30AArrangement3A/B/CContact MaterialSilver AlloyContact Resistance(By voltage drop 6V 1A)Max.50mΩRating Nominal Switching Capacity30A 250VACResistive Load30A 28VDCMax.Switching Voltage28VDC/250VACMax.Switching Current30AMax.Switching Power7500VA/840WCoil Consumption3.2VA/2.0WMechanical

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Ms485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long Life
Main Parameter
SpecificationMax Current30A
Arrangement3A/B/C
Contact MaterialSilver Alloy
Contact Resistance(By voltage drop 6V 1A)Max.50mΩ
Rating Nominal Switching Capacity30A 250VAC
Resistive Load30A 28VDC
Max.Switching Voltage28VDC/250VAC
Max.Switching Current30A
Max.Switching Power7500VA/840W
Coil Consumption3.2VA/2.0W
Mechanical Life(at 120 cpm)1*107
Electrical Life(at 20 cpm)2*104
Operate TimeMax.20ms
Release TimeMax.15ms
Dielectric StrengthOpen Contact≥1500VAC
Coil and Contact≥2500VAC
Insulation Resistance≥1000mΩ
Operation Humidity45~85%
Ambient Temperature-40ºC~+70ºC
Vibration ResistanceFunctional10 ~ 55 Hz at Double Amplitude of 1.5mm
Destruction10 ~ 55 Hz at Double Amplitude of 1.5mm
Shock ResistanceFunctionalMin.10G
DestructionMin.100G

Ms485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long LifeMs485 40A 30A Circuit Breaker with Cheaper Price Long Life           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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