NOTICE!!! 1) For Germany customers , if ship by FedEx or TNT , pls kindly proivde your EORI number. Otherwise we can only ship by DHL or Singapore post.
2) For Russian customers, pls provide your full name (at least 3 words) , including first name, middle name and last name, otherwise Russian Post will not releases the parcel and return to China ! Russian can not go by DHL, TNT, Fedex and UPS. Pls kindly choose the other shipping way. EMS will take 20-40 days. 3) For Brazilian customers, if ship by FedEx, DHL, TNT, UPS, please tell me your tax number ( CPF or CNPJ ). Without it, customs will return goods to China
4) For customers from South America (such as Argentina, Peru, Colombia ,etc), if you have the tax number, it will reduce much trouble with customs.
JB series DC miniature circuit breaker is designed to protect the cables located between each string of photo-voltaic modules and the photo-voltaic inverter against overloads and short circuits (see application diagram). Combined with a switch, JB will be installed in a string PV protection enclosure at the end of each string of photo-voltaic modules. It can be locked (by a padlocking device) in OFF position as a safety measure for removal of the PV inverter. Since a fault current can flow in the reverse direction to the operating current, JB can detect and protect against any bidirectional current.
To ensure the safety of the installation, it is necessary depending on the various types of application to combine JB with:
-A residual current device at the AC end;
- A fault passage detector (insulation monitoring device) at the DC end;
- An earth protection circuit breaker at the DC end.
In all cases, fast action on site will be required to clear the fault (protection not ensured in the event of a double fault).
JB is not polarity sensitive: (+) and (-) wires can inversed without any risk.
JB is delivered with three inter-pole barrier to provide increased isolation distance between two adjacent connectors.
- Pole no.: 1P, 2P, 3P, 4P
- Rated voltage: 1P 250V DC 2P 500V DC 3P 750V DC 4P 1000V DC
- Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
- Tripping curve: K, C, D
- Ultimate short-circuit capability: 10kA
- Rated frequency: 50/60Hz
- Rated impulse withstand voltage: 6.2kV
- Electro-mechanical endurance: 6000 times
- Connection terminal
- Screw terminal
- Pillar terminal with clamp
- Connection capacity: Rigid conductor up to 25mm2
- Fastening torque: 2.0Nm
- 35mm symmetrical din rail
- Panel mounting
Position contact indication
- The presence of the green strip guarantees physical opening of the contacts and allows operations to be performed on the downstream circuit in complete safety
- Increased product service life thanks to fast closing independent of the speed of actuation of the toggle
- Pre-wired product: Input/Output on the same side.
- Protection grade: IP40
Overall & Installation Dimensions
1)Russian federation buyer please leave your full consignee name when you place the order. 2) More information,please contact me freely.