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Motor Protection LW M7-32P

LWM7 Series Motor protection circuit breaker (also known as: Motor Protector or Motor starter, hereinafter referred to as "circuit breaker") is suitable for AC voltage to 690V, the highest current to 80A circuit, is the isolation switch, circuit breaker, thermal relay function set one circuit breaker. It has isolation protection,l overload protection, temperature compensation, phase break protection, short circuit protection,l application range: three-phase mouse cage asynchronous motor direct start and control, distribution line protection and infrequent load conversion.

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LW M7-32P

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Motor Protection

Product Description

Product Model

Other Accessories

Application Area

LWM7 Series Motor protection circuit breaker (also known as: Motor Protector or Motor starter, hereinafter referred to as "circuit breaker") is suitable for AC voltage to 690V, the highest current to 80A circuit, is the isolation switch, circuit breaker, thermal relay function set one circuit breaker. It has isolation protection,l overload protection, temperature compensation, phase break protection, short circuit protection,l application range: three-phase mouse cage asynchronous motor direct start and control, distribution line protection and infrequent load conversion.

SD M7circuit breaker complies to GB/T 14048.2, GB/T 14048.4, IEC60947-2, 60947-4-1 standards.

The main technical parameters

1. Rated insulation voltage ui(v):690

2. Rated impulse withstand voltage u imp(ky):8 3. Rated operating voltage ue(v): 230/240, 400/415,440,500,690

4. Rated frequency(HZ):50,60

5. Frame rated current Inm(A): 32A,80A

6. Rated current In(A) :see Table1

7.The enclosure protection class is IP20.

Normal work and installation conditions

1. The altitude of the installation site is generally not more than2000m.

2. The lower limit of ambient air temperature is generally not lower than -5 °C, and the upper limit is generally not higher than +40"c.

3. The relative humidity of the air is not more than 50% when the temperature is +40 °C, and the minimum monthly temperature of the wettest month is 25 "c, and the monthly average maximum relative humidity is not more than 90%.

4. The surrounding environment pollution level is 3.

5. starter installation categories are Ill.

6. The inclination of the mounting surface and the vertical plane is not more than 15".

7. Rated work system: uninterrupted work system , Intermittent working system.

Hot component setting current adjustment range: rated limit and rated operating short-circuit breaking capacity see Table 1.

Model	Fastener rated current In (A)	Tuning current adjustment range (A)	400/415V - ICU	400/415V - ICS	690V - ICU	690V - ICS	Arc discharge distance (mm)
LW M7-32(X/P)	0.16	0.1~0.16	100	100	100	100	40
LW M7-32(X/P)	0.25	0.16~0.25	100	100	100	100	40
LW M7-32(X/P)	0.4	0.25~0.4	100	100	100	100	40
LW M7-32(X/P)	0.63	0.4~0.63	100	100	100	100	40
LW M7-32(X/P)	1	0.63~1	100	100	100	100	40
LW M7-32(X/P)	1.6	1~1.6	100	100	100	100	40
LW M7-32(X/P)	2.5	1.6~2.5	100	100	3	2.25	40
LW M7-32(X/P)	4	2.5~4	100	100	3	2.25	40
LW M7-32(X/P)	6.3	4~6.3	100	100	3	2.25	40
LW M7-32(X/P)	10	6~10	100	100	3	2.25	40
LW M7-32(X/P)	14	9~14	15	7.5	3	2.25	40
LW M7-32(X/P)	18	13~18	15	7.5	3	2.25	40
LW M7-32(X/P)	23	17~23	15	6	3	2.25	40
LW M7-32(X/P)	25	20~25	15	6	3	2.25	40
LW M7-32(X/P)	32	24~32	10	6	3	2.25	40
LW M7-80	25	16~25	15	7.5	4	2	50
LW M7-80	40	25~40	15	7.5	4	2	50
LW M7-80	63	40~63	15	7.5	4	2	50
LW M7-80	80	56~80	15	7.5	4	2	50

The standard rated power of the three-phase motor controlled by the circuit break eris shown in table 2.

Model	Fastener rated current In (A)	Tuning current adjustment range (A)	standard rated power of three-phase motor (kw) - 230/240V	standard rated power of three-phase motor (kw) - 400V	standard rated power of three-phase motor (kw) - 415V	standard rated power of three-phase motor (kw) - 440V	standard rated power of three-phase motor (kw) - 500V	standard rated power of three-phase motor (kw) - 690V
LWM7-32(X/P)	0.16	0.1~0.16	-	-	-	-	-	-
LWM7-32(X/P)	0.25	0.16~0.25	-	-	-	-	-	-
LWM7-32(X/P)	0.4	0.25~0.4	-	-	-	-	-	-
LWM7-32(X/P)	0.63	0.4~0.63	-	-	-	-	-	0.37
LWM7-32(X/P)	1	0.63~1	-	-	-	0.37	0.37	0.55
LWM7-32(X/P)	1.6	1~1.6	-	0.37	-	0.55	0.75	1.1
LWM7-32(X/P)	2.5	1.6~2.5	0.37	0.75	0.75	1.1	1.1	1.5
LWM7-32(X/P)	4	2.5~4	0.75	1.5	1.5	1.5	2.2	3
LWM7-32(X/P)	6.3	4~6.3	1.1	2.2	2.2	3	3.7	4
LWM7-32(X/P)	10	6~10	2.2	4	4	4	5.5	7.5
LWM7-32(X/P)	14	9~14	3	5.5	5.5	7.5	7.5	9
LWM7-32(X/P)	18	13~18	4	7.5	9	9	9	11
LWM7-32(X/P)	23	17~23	5.5	11	11	11	11	15
LWM7-32(X/P)	25	20~25	5.5	11	11	11	15	18.5
LWM7-32(X/P)	32	24~32	7.5	15	15	15	18.5	25
LW M7-80	25	16~25	-	11	11	-	-	18.5
LW M7-80	40	25~40	-	18.5	18.5	-	-	37
LW M7-80	63	40~63	-	30	30	-	-	55
LW M7-80	80	56~80	-	37	37	-	-	63

The operating performance of the circuit break eris shown in Table3.

Type	Rack rated current Inm (A)	Hourly operation cycles	Electrical life	Mechanical Life
LWM7-32(X/P)	32	120	10000	100000
LWM7-80	80	120	1500	8500

Overcurrent action protection

The action characteristics of the circuit breaker when each phase equilibrium and unbalanced load are shown in table 4, table 5, table 6.

Table 4 Operating characteristics of the circuit breaker when the phases are balanced (Distribution protection)

Type	Setting current multiple	Tripping time	Status	Circumstance temperature
LWM7 - 32(X/P)	1.05	1h non-tripping	Initial	+20℃ ±2℃
LWM7 - 80	1.3	1h tripping	Following serial 1	+20℃ ±2℃
LWM7 - 80	1.5	< 2min tripping	Following serial 1	+20℃ ±2℃

Table 5 Action characteristics of balanced load of each phase of the circuit breaker (Motor protection)

Type	Serial number	Setting current multiple	Tripping time	Status	Circumstance temperature
LWM7 - 32(X/P)	1	1.05	2h non-tripping	Initial	+20℃ ±2℃
LWM7 - 32(X/P)	2	1.2	2h tripping	Following serial 1	+20℃ ±2℃
LWM7 - 80	3	1.5	Action within 2 minutes	Following serial 1	+20℃ ±2℃
LWM7 - 80	4	7.2	2~10s tripping	Initial	+20℃ ±2℃

selection of backup fuse:

when the expected short-circuit current atthe installation site is greater than the starter's predetermined limit short-circuit breaking capacity,

the type and melt current specification soft he backup short-circuit protection fuse are shown in table8below.

For example, you can choose to usea typeof gG fuse RT16 (NT00).

Type	In(A) Fastener rated current in (A)	Tuning current adjustment range (A)	230/240V - aM A	230/240V - gL/gG A	400/415V - aM A	400/415V - gL/gG A	400V - aM A	400V - gL/gG A	500V - aM A	500V - gL/gG A	690V - aM A	690V - gL/gG A
LWM7-32(X/P)	0.16	0.1~0.16	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	0.25	0.16~0.25	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	0.4	0.25~0.4	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	0.63	0.4~0.63	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	1	0.63~1	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	1.6	1~1.6	■	■	■	■	■	■	■	■	■	■
LWM7-32(X/P)	2.5	1.6~2.5	■	■	■	■	■	■	■	■	16	20
LWM7-32(X/P)	4	2.5~4	■	■	■	■	■	■	■	■	25	32
LWM7-32(X/P)	6.3	4~6.3	■	■	■	■	50	63	50	63	32	40
LWM7-32(X/P)	10	6~10	■	■	■	■	50	63	50	63	32	40
LWM7-32(X/P)	14	9~14	■	■	63	80	50	63	50	63	40	50
LWM7-32(X/P)	18	13~18	■	■	63	80	50	63	50	63	40	50
LWM7-32(X/P)	23	17~23	80	100	80	100	63	80	50	63	40	50
LWM7-32(X/P)	25	20~25	80	100	80	100	63	80	50	63	40	50
LWM7-32(X/P)	32	24~32	80	100	80	100	63	80	50	63	40	50
LWM7-80	25	16~25	-	-	250	315	-	-	-	-	160	200
LWM7-80	40	25~40	-	-	250	315	-	-	-	-	160	200
LWM7-80	63	40~63	-	-	315	400	-	-	-	-	200	250
LWM7-80	80	56~80	-	-	315	400	-	-	-	-	200	250

1.Accessories for starters

1.1 Annex types, models and specifications are shown in the table below

Attachment Name	LW M7-32（X）Apply	LW M-80 Apply	Accessory specifications
under voltage stripper	LW MT-AU110	-	110~150V，50HZ；127V,60HZ
under voltage stripper	LW MT-AU220	-	220~240V,50HZ
under voltage stripper	LW MT-AU380	-	380~400V,50HZ ;440V,60HZ
split excitation stripper	LW MT-AS110	-	110~150V，50HZ；127V,60HZ
split excitation stripper	LW MT-AS220	-	220~240V,50HZ
split excitation stripper	LW MT-AS380	-	380~400V,50HZ ;440V,60HZ
Instantaneous auxiliary contacts (front hanging)	LW MT-AE20	-	2NO
Instantaneous auxiliary contacts (front hanging)	LW MT-AE11	-	1NO+1NC
Instantaneous auxiliary contacts (side hanging)	LW MT-AN20	LW MT-AN20(LW M7-80)	2NO
Instantaneous auxiliary contacts (side hanging)	LW MT-AN11	LW MT-AN11(LW M7-80)	1NO+1NC
Fault signal contact sand instantaneous auxiliary contacts	LW MT-AD0110	-	-
Fault signal contact sand instantaneous auxiliary contacts	LW MT-AD101	-	-
Fault signal contact sand instantaneous auxiliary contacts	LW MT-AD1010	-	-
Fault signal contact sand instantaneous auxiliary contacts	LW MT-AD1001	-	-
waterproof mounting box	LW M7 waterproof mounting box	-	-
waterproof mounting box with emergency stop button	LWM7 waterproof mounting box with emergency stop button	-	-

1.2 performance of thes DM7-AU110, AU220, AU380of the under voltage stripper:

a. Rated insulated voltage ui(v):690.

b. Motion characteristics:

when the voltage drops to the range of70% and 35%of the rated voltage, the under voltage stripper shall act;The under voltage stripper shal lb eabl et o preven tth e starte rfro m closin gwhe nth e supply voltag eis less than 35% of the rated voltage of the stripper, and the under voltage stripper shall be able to ensure the closure of the starter when the supply voltage is equal to or greater than 85% of the rated voltage

1.3performance of the s DM7-AS110, AS220, AS380 of the split-excitation stripper:

a. Rated insulated voltage ui (v):690

b. Motion characteristics: The operating voltage range of the split-excitation stripper is 70%~110% of the rated operating voltage.

1.4performance of instantaneous auxiliary contacts DM7-AE20, AE11 (front hanging): a. Rated insulated voltage ui(v) :250;

b. Agreed heating current Ith (A): 2.5;

c. The use category of instantaneous auxiliary contacts, rated operating voltage and rated operating current are shown in the table below.

1.5performance of instantaneous auxiliary contacts DM7-AN20, AN11 (side hanging): a. Rated insulated voltage ui(v) :690;

b. Agreed heating current lth (A):6;

c. The use category of instantaneous auxiliary contacts, rated operating voltage and rated operating current are shown in the table below.

1.6 performance of fault signal contact s and instantaneous aux ii ary contact s s DM7-AD:

Fault signal contact s and instantaneous auxiliary contact ss DM7-AD consist of fault signal contacts

and instantaneous auxiliary contacts, and their use categories and performance are different.

a. Rated insulated voltage ui(v) :690;

b. The agreed heating current of the instantaneous auxiliary contact lth (A) :6; The agreed heating current of the fault signal contact Ith (A):2.5;

c. The use category of instantaneous auxiliary contacts, rated operating voltage and rated operating current are shown in the table above, with the same performance as the LWM7-AN instantaneous auxiliary contact; The use category of the fault signal contact, the rated operating voltage and the rated operating current are show in tabel below.