The molded case circuit breaker tripper is divided into undervoltage tripper and shunt tripper. This article explains the wiring method of the circuit breaker with sub-excitation tripper. When the shunt tripper receives an external signal, the tripper pushes the rod action to push the tripping equipment of the circuit breaker, so that the circuit breaker trips and opens, so as to disconnect the power supply. The shunt tripper is classified according to the device type, which can be divided into two types: built-in and external.
The built-in type is installed inside the switch when leaving the factory, and the user can not disassemble it by himself, such as Delixi Electric CDM1 plastic shell circuit breaker. Since the cover cannot be removed, the excitter tripper is now installed inside the circuit breaker at the factory. This circuit breaker can not only be equipped with a shunt tripper, but also with an undervoltage tripper, auxiliary contacts, and alarm contacts. Generally, this circuit breaker can be optionally equipped with two accessories.
External, often used in the circuit breaker between the middle cover and the face cover, the user can require the product to be installed at the factory, or can be purchased separately and installed into the circuit breaker by itself. CDM3v plastic shell circuit breaker as one of the latest Dengfeng series products launched by Delixi Electric Electric, it is based on the classic leader channel of Delixi Electric - CDM3 series, a new generation of products, it has 63, 100, 125, 160, 250, 400, 630, 800, 1600 a total of 9 shell frames for customers to choose, the current from the minimum 10A to the maximum 1600A comprehensive coverage. Its new structural design makes the product more reliable and cost-effective. At the same time, it also provides customers with a wider selection of accessories. Shunt tripping, alarm contact, auxiliary contact, undervoltage contact, auxiliary reporting assistant, leakage alarm tripping accessory, overload alarm non-tripping accessory (this accessory is built-in, the user cannot install it by himself). The CDM3v series adopts a double-sided cover design, and users can purchase accessories separately according to their needs, and install them into the circuit breaker by themselves, which is simple to operate and reliable to use. It fully embodies the value of "customer first".
Common shunt tripper, insulation voltage AC400V; Additional impulse withstand voltage: 4KV, additional control voltage, general communication at 50/60HZ AC230V; AC400V。 DC DC24V; DC110V; DC220V。 So how should the wiring be under the additional control voltage.
We get the switch with a split excited tripper, first find the label with the voltage identification, generally the DC shunt trip is not divided into positive and negative poles; Communicate the tripper, and there is no need to distinguish between the front and the neutral line.
Because it is a remote control accessory for users, users are required to select a control switch by themselves, and users can choose to control 1-pole or 2-pole switches (2-pole is recommended). The wiring connection can be carried out as follows.
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