RDM5E series Moulded Case Circuit Breaker – Electronics MCCB
Product Introduction
RDM5E series electronic molded case circuit breaker. The circuit breaker is applicable to the distribution network with AC 50Hz, rated insulation voltage of 1000V, rated working voltage of 690V and below, and rated working current of 800A and below. It is used to distribute electric energy and protect the line and power supply equipment from overload, short circuit, undervoltage and other faults.
RDM5E series Circuit breaker with rated current of 630A and below. It can also be used to protect the motor. Under normal conditions, the circuit breaker can be used for infrequent line switching and infrequent motor starting.
RDM5E series circuit breaker has the functions of overload long time delay inverse time limit, short circuit short time delay inverse time limit, short circuit short time delay definite time limit, short circuit instantaneous and undervoltage protection, which can protect the route and power supply equipment from damage.
The circuit breaker has isolation function, and its symbol is
The product conforms to IEC60497-2/GB/T14048.2 standard.
Selection Guide
| RDM5E | 125 | M | P | 4 | 4 | 0 | 2 | Z | R | ||
| Product code | Frame Size | Breaking capacity | Operation mode | Poles | Release mode | Accessories code | Use code | Product category | Wiring mode | ||
| Electronic molded casecircuit breaker |
125 250 400 800 |
M: Medium breaking type H: High breaki ng type |
No code: handledirect operation Z. Turn handle operation P: Electric operation |
3:3 poles 4:4 poles |
Release mode code 4: Electronicrelease |
See Table1 for accessory code | No code: circuit breaker for distribution 2: Circuit breaker for motor protection |
No code: basic type Z: Intelligent communication type 10:Fire protection type |
No code: front-plate wiring R: wiring behind the board PF: plug-in front-plate wiring PR: plug-in rear-plate wiring |
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Remarks:
1) It has overload thermal memory function: overload thermal memory function, short circuit (short time delay) thermal memory function.
2) Communication function: standard RS485 interface, Modbus field bus protocol. It is realized through plug-in accessories. See the
following table for the configuration of communication accessories:
| No | Description | Accessory function | ||||||
| 1 | Communication shunt alarm accessories | Communication+shunt+overload alarm without tripping+reset button+work indication | ||||||
| 2 | Status feedback communication attachment | Four remote communication+reset button+work indication | ||||||
| 3 | Prepayment attachment | Prepayment control+work instructions | ||||||
Accessory code list
| £Alarm switch | █ Auxiliary switch | ●Shunt release | ○Undervoltage release | →Leader direction | Left side installation | Handle | Right side nstallation |
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Normal working conditions and installation conditions
□The ambient air temperature shall not exceed+40℃ , and the average temperature within 24h shall not exceed+35 .The lower limit of ambient air temperature is – 5℃ .
□The altitude of the installation site shall not exceed 2000m.
□ When the maximum temperature is+40℃ , the relative humidity of the air shall not exceed 50%. Higher relative humidity can be allowed at lower temperatures, such as 90% at 20℃ . Special measures shall be taken for occasional condensation on products due to temperature changes.
□ The installation category of the main circuit of the circuit breaker is Class III, and the installation category of the auxiliary circuit and control circuit not connected to the main circuit is Class II
□ The pollution level is Level 3.
□ Use category is A or B.
□ The inclination of the installation surface of the circuit breaker shall not exceed ± 5℃ ;
□ The circuit breaker shall be installed in a place without explosion hazard, conductive dust, corrosion of metal and damage of insulation;
□ The product shall be handled with care during transportation, and shall not be inverted to avoid severe collision.
