Home / Products / Low Voltage Circuit Breaker / Molded Case Circuit Breaker (MCCB) / QM1E Electronic adjustable type MCCB
● Altitude up to 2000m;
● Ambient medium temperature should be within -5℃ to +40℃ (+45℃ for marine products);
● It can withstand the effect of damp air;
● It can withstand the effect of salt fog or oil mist;
● It can withstand the effect of moulds;
description
Technical Data
Product Overview
QM1E series electronic circuit breakers are applicable for low-voltage power systems of AC 50Hz, rated operating voltage up to 1000V and rated operating current from 16A to 800A.
Ambient and installation conditions
● Altitude up to 2000m;
● Ambient medium temperature should be within -5℃ to +40℃ (+45℃ for marine products);
● It can withstand the effect of damp air;
● It can withstand the effect of salt fog or oil mist;
● It can withstand the effect of moulds;
● It can withstand the effect of nuclear radiation;
● The max inclination is 22.5℃.
● It still can work reliably when the ship subjects to normal vibration;
● It can still work reliably if the product subjects to the earthquake (4g).
● Places where the surrounding medium is free from explosion danger, and far away from gas or conductive dust that would erode the metal or destroy the insulation;
● Keep away from rain or snow.
Product Features
● Circuit breaker can be equipped with undervoltage release, shunt release, auxiliary contacts, alarm contacts, electric operating mechanism, rotary operating handle and other accessories.
● Circuit breaker has protection functions of overload long delay, short-circuit short delay and short-circuit instantaneous protection, the user can set the required protection characteristics (user only needs to operate the DIP switch for settings of protection function parameters).
● Circuit breaker has ground fault and thermal analog protection functions, pre-alarm indication over-current indication, load current indication, digital current analysis technology, and it can achieve a higher level of protection.
● QM1EL series is circuit breaker with residual current protection function.
Panel and function description
Intelligent release panel
Panel adjustment knob as follows in turn:
● IR(A) Isd(x IR) Ii(x IR)
● IR: Overload long delay tripping setting current; Isd: Short-circuit short delay tripping setting current;
● Ii: Short-circuit instantaneous tripping setting current;
The rest parameters are set by factory default, or set by remote communication, as follows:
● tR: Overload long delay setting time, factory default: 60s;
● tsd: Short-circuit short delay setting time, factory default: 0.1s;
● Ip: Overload pre-alarm setting current, factory default: 0.85*IR;
Intelligent communication port (COM):
| 1: Power supply input DC24V(+) | 6: 485B- |
| 2: Power supply input DC24V(-) | 7: Closing and opening common terminal of electric operating mechanism |
| 3: 485A+ | 8: Closing and opening common terminal of electric operating mechanism |
| 4: 485A+ | 9: Opening of electric operating mechanism |
| 5: 485B- | 10: Closing of electric operating mechanism |
Panel With Residual Current Protection
| 1: Setting current In overload indicator, the red light will go on when the operation current is ≥ 105% In |   |
| 2: Pre-alarm current Ip indicator, the yellow light starts flashing when operation current is ≥ Ipx90% | |
| 3: When operation current is ≥ 60% xln setting current, the green light will go on | |
| 4: The code switch for residual current setting | |
| 5: The code switch for leakage action time setting |
Product Selection Guide
| QM1 | E | L |
| Product code | Adjustable type | Rated residual operating current |
| Moulded-case circuit breaker | E: electronic adjustable | L: residual-current circuit breaker |
| Quick fixed type | ||
| 30、50、100、30、100、200、30、100、500、100、200、300 | ||
| 100、300、500、300、500、1000 | ||
| Quick adjustable type | ||
| 30、50、100、30、100、200、30、100、500、100、200、300 | ||
| 100、300、500、300、500、1000 |
| 160 | P | 3 |
| Code of frame size current | Code of operating mode | Pole number |
| lnm=160 lnm=250 lnm=400 lnm=800 | P: electric operation | 3: 3-pole 4: 4-pole |
| 400 | 2 | A |
| Code of release type | Code of different applications | Code of four-pole product |
| and internal accessory | ||
| 2: intelligent release | 1: power distribution | A: N-pole without protection, cannot close or open |
| Accessory code, see table 1 | 2: motor protection | B: N-pole without protection, can close and open |
| C: N-pole with protection, can close and open | ||
| D: N-pole with protection, cannot close or open |
Main Performance Indexes
| Frame current (A) | 160 | 250 | 400 | 630 | 800 | |
| Model | QM1Е-160M | QM1Е-250H | QM1Е-400H | QM1Е-630H | QM1Е-800H | |
| Pole number | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 | |
 |  |  |  |  | ||
| Rated current (A) | 16-32, 40-125, 80-160 | 16-32, 40-125, 80-160, 100-250 | 200-400 | 200-400, 300-630 | 300-630, 400-800 | |
| Rated voltage (V) | AC400V | |||||
| Rated insulation voltage (V) | AC1000V | |||||
| Short-circuit breaking capacity(KA)Icu/Ics | AC400V | 35/25 | 50/35 | 65/65 | 65/65 | 65/65 |
| Operating cycle number | Electrical life | 1500 | 1000 | 1000 | 1000 | 1000 |
| Mechanical life | 7000 | 7000 | 4000 | 4000 | 4000 | |
Outline dim(mm) a-b-c-ca
| ||||||
| 3P | 90-155-88-115 | 105-165-88-115 | 140-257-103-155 | 140-257-103-155 | 210-257-103-155 | |
| 4P | 90-155-88-115 | 140-165-88-115 | 185-257-103-155 | 185-257-103-155 | 280-257-103-155 | |
| Weight (kg) | 3P | 1.8 | 2.1 | 5.5 | 5.7 | 5.7 |
| 4P | 2.3 | 2.6 | 7 | 7.5 | 7.5 | |
| Electric operating device (MD) | ● | |||||
| External driving operating handle | ● | |||||
| Automatic release | Electronic type | |||||
