LMM1E Electronic adjustable type MCCB Molded Case Circuit Breaker
Standard: IEC60947-2
Model: LMM1E
Poles: 3P,4P
Frame size: 160,250,400,630,800,1250,1600
Rated operational voltage: 400/415/690V
Rated insulation voltage: 1000V
Trip unit type: electronic type
Breaking capacity code: L,M,H
Installation method: Fixed type; plug-in type
Adjustable Tripping Setting: Ir, Isd, Ii, tR, tsd, Ip
Ambient Temperature: -25…+40 ºC
Certificate: CE, CB
Available in black or white covers
LMM1E series MCCB with electronic trip unit providing LSI protection. This molded case circuit breaker is suitable for applications with AC 50Hz, rated voltage 690V and below, and rated current up to 1600A.
Compared with thermal-magnetic trip units, electronic trip units can be more accurately set in terms of trip time and current threshold, thereby better protecting the safety of equipment in the circuit.
- IR: Overload long delay setting current
- Isd: Short-circuit short delay setting current
- Ii: Short-circuit instantaneous setting current
- tR: Overload long delay setting time
- tsd: Short-circuit short delay setting time
- Ip: Overload pre-alarm setting current
| Frame size Inm(A) | 160 | 250 | |||||
| Rated operational current In(A) | 32,63,100,125,160 | 160,250 | |||||
| Tripper rated current Ir(A) | 63,75,80,90,100,125,140,150,160 | 100,125,140,150,160,180,200,225,250 | |||||
| Rated insulation voltage Ui(V) | 1000 | ||||||
| Rated impulse withstand voltage Uimp(kV) | 8 | ||||||
| Rated operational voltage Ue(V) | 400/690 | ||||||
| Breaking capacity code | S | H | S | H | |||
| Number of poles | 3P, 4P | ||||||
| Rated service short circuit breaking capacity Ics (kA) | 400/415V | 18 | 25 | 18 | 25 | ||
| Rated ultimate short circuit breaking capacity Icu (kA) | 25 | 35 | 25 | 35 | |||
| Utilization category | A | B | |||||
| Trip unit type |
Electronic
|
||||||
| Mechanical life (times) | 8500 | ||||||
| Electrical life (times) | 1500 | ||||||
| Frame size Inm(A) | 400 | 630 | 800 | |||||
| Rated operational current In(A) | 400 | 500,630 | 630,800 | |||||
| Tripper rated current Ir(A) | 160,180,200,220,
240,280,320,360,400 |
250,280,315,350,380,
440,500.570,630 |
320,400,450,500,550,
630,700,750,800 |
|||||
| Rated insulation voltage Ui(V) | 1000 | |||||||
| Rated impulse withstand voltage Uimp(kV) | 8 | |||||||
| Rated operational voltage Ue(V) | 400/690 | |||||||
| Breaking capacity code | H | H | H | |||||
| Number of poles | 3P, 4P | |||||||
| Rated service short circuit breaking capacity Ics (kA) | 400/415V | 35 | 35 | 50 | ||||
| Rated ultimate short circuit breaking capacity Icu (kA) | 50 | 50 | 65 | |||||
| Utilization category | B | B | B | |||||
| Trip unit type |
Electronic
|
|||||||
| Mechanical life (times) | 4000 | 4000 | 2500 | |||||
| Electrical life (times) | 1000 | 1000 | 500 | |||||
| Frame size Inm(A) | 1250 | 1600 | |||||
| Rated operational current In(A) | 630,800,1000,1250 | 800,1000,1250,1600 | |||||
| Tripper rated current Ir(A) | 500,800,700,800,900,1000,1100,1200,1250 | 630,800,900,1100,1250,1400,1500,1600 | |||||
| Rated insulation voltage Ui(V) | 1000 | ||||||
| Rated impulse withstand voltage Uimp(kV) | 8 | ||||||
| Rated operational voltage Ue(V) | 400/690 | ||||||
| Breaking capacity code | H | H | |||||
| Number of poles | 3P, 4P | ||||||
| Rated service short circuit breaking capacity Ics (kA) | 400/415V | 50 | 50 | ||||
| Rated ultimate short circuit breaking capacity Icu (kA) | 65 | 85 | |||||
| Utilization category | B | B | |||||
| Trip unit type |
Electronic
|
||||||
| Mechanical life (times) | 2500 | 2500 | |||||
| Electrical life (times) | 500 | 500 | |||||
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