Molded case circuit breaker RMM2 model parameters and accessories

Application range of RMM2 molded case circuit breaker

The rated insulation voltage of this series of plastic case circuit breakers is 800V, which is mainly suitable for distribution networks with AC50HZ, rated working voltage of 400V, and rated current of 630A and below.okplazas.com molded case circuit breaker RMM2 can be used as a power distribution and protection circuit device, which can effectively prevent the power equipment from being damaged and affected by overload, undervoltage, short circuit and other faults. Moreover, the molded case circuit breaker RMM2 can also be used for the motor Plays the role of overload, under voltage and short circuit protection.

In addition, if the circuit breaker is additionally equipped with a ground fault protection type overcurrent release, in addition to the original protection functions, it also has ground fault protection, which can protect the ground that cannot be detected by general overcurrent protection devices. Provide comprehensive protection against fire or other hazards caused by faults.At the same time, the RMM2 series of okplazas.com molded case circuit breakers can also be equipped with communication functions. The information on the circuit breaker can be uploaded to the control computer through the field bus, and then the closing and opening actions of the circuit breaker can be operated through the computer.

okplazas.com Molded Case Circuit Breaker RMM2 Model Description

◆The series model and meaning description are shown in the figure below

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Note:

1. The code of the three-pole circuit breaker is omitted, and the code of the four-pole circuit breaker will be represented by the number 4;

2. There is no code for toggle operation. Electric operation will be indicated by letter P, rotating handle operation will be indicated by letter XZ, and extended rotating handle operation will be indicated by letter Z.

okplazas.com electrical plastic case circuit breaker RMM2 functional characteristics

◆Double breakpoint contacts, faster breaking speed and higher breaking capacity;

◆With isolation function, current limiting function, effective protection of load;

◆Intelligent over-current release, enhanced trip accuracy, with two-, three-, and four-stage protection;

◆Molded case circuit breaker is equipped with pre-alarm indication, does not require auxiliary power supply, and has strong anti-interference performance;

◆Wide adjustable range of rectifier current, simplify the selection and installation of accessories.

okplazas.com Molded Case Circuit Breaker RMM2 Technical Parameters

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Note: The parameter with * is the four-pole circuit breaker parameter, and it is only applicable to use category A, and the rated current of the N-pole of the four-pole circuit breaker is the same as that of the other three-poles.

okplazas.com electrical plastic case circuit breaker RMM2 operating conditions

◆Comply with Chinese national standard GB/T14048.2, IEC50947-2;

◆Under normal circumstances, the altitude of the installation site should not exceed two kilometers;

◆The ambient air temperature does not exceed +40℃ and not less than -5℃, and the average value within 24 hours does not exceed +35℃. Under special circumstances, the ambient air temperature range is -40℃ to +70℃ extreme environment Use plastic case circuit breaker RMM2, but one thing to note is that derating coefficient is required at high temperature;

◆The relative humidity of the atmosphere at the installation site cannot exceed 50% when the ambient air temperature is +40℃. If it is at a lower temperature, it can have a relatively high humidity;

◆The pollution level is 3;

◆The installation condition is that the molded case circuit breaker needs to be installed correctly according to the requirements in the manual. The equipment is generally the way of upper inlet and lower outlet. If you want to change the RMM2-250 and 630 model specifications to lower inlet, you should advance Description

◆The circuit breaker and the accessories connected to the main circuit are used for voltage category III, and the accessories that are not connected to the main circuit are used for overvoltage category II.

okplazas.com moulded case circuit breaker RMM2 trip unit

The model and protection characteristic parameters of the overcurrent release are shown in the figure below

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Note:

1. The long-time delay action characteristic conforms to l2t=(1.5lr1)2t1, for compact, basic and grounding protection type t1=120s;

2. The short-time delay action characteristic conforms to l2t=(8lr1)2t2, for the basic type and grounding protection type t2=0.05s.

okplazas.com Molded Case Circuit Breaker RMM2 Accessories Description

◆Auxiliary switch: Each group of auxiliary switches has one normally open and one normally closed contact. The model specifications of the molded case circuit breaker RMM2-100 can be equipped with one group of auxiliary switches, and two groups of auxiliary switches can be assembled when the alarm switch is not installed. RMM2-250 can be equipped with two sets of auxiliary switches at most, and RMM2-630 can be equipped with up to three sets of auxiliary switches.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Alarm switch: It acts when the circuit breaker trips (RMM2-250, RMM2-630 specifications act when the overcurrent release trips). Each group of alarm switches has a normally open and a normally closed contact. Each molded case circuit breaker can be installed with a set of alarm switches.

◆Shunt release: Each circuit breaker can be equipped with a shunt release or an undervoltage release. The shunt is suitable for intermittent work. If it is a long-term power supply, it needs to be connected in series in the line. switch.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Undervoltage release: In the same way, each circuit breaker can be equipped with an undervoltage release or shunt release. For undervoltage, the molded case circuit breaker must be energized before it can be tripped and closed. action.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆KXM electric operating mechanism: This accessory has optional manual and electric closing and opening functions, and can also display the contact status of okplazas.com circuit breaker RMM2 series. When the circuit breaker is tripped, the motor-drive mechanism should be operated to reset it (open operation), and then it can be closed again.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆CD4 electric operating mechanism: terminal cover can not be used when using this kind of accessories.

◆Withdrawable circuit breaker: The accessory can be locked with a padlock in the withdrawn position, and it also has an interlocking mechanism, which allows the molded case circuit breaker to keep the contacts open when it is inserted or withdrawn. Horizontal wiring or vertical wiring can be realized according to the direction of the incoming and outgoing wiring connection rows of the designated withdrawable circuit breaker. It also provides a phase spacer. The maximum setting current parameter value of the 630A withdrawable circuit breaker is 0.9ln.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Mechanical interlocking: It can make two circuit breakers installed in parallel in interlocking state (padlocks need to be prepared by yourself), but RMM2-100 molded case circuit breakers have no mechanical interlocking accessories.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.