Moulded case circuit breaker
Low-voltage Brief Catalogue
MCCB
050
P -
NM1 Fixed type MCCB
MCCB
MCCB
P-027
P-028
Low Voltage Brief Catalogue
Low Voltage Brief Catalogue
• Rated current from 10 to 1250A • Employing a fixed thermal and fixed magnetic trip. • Frames made of rigid materials of engineering plastics • Complete range of one, two, three and four-pole version • 4-class breaking capacity from 10kA to 70kA • Vertical/horizontal installation • Circuit breakers and auxiliaries comply with the following international standard: IEC/EN 60947-1: general rules IEC/EN 60947-2: circuit breakers automatic control components. • Certified for operation in pollution-degree environments as defined by IEC standard 60947 (industrial environments). • Temperature range from -5 to +40 • A complete system of add-on modules for Nm1 NM1 Fixed type MCCB � Rated current from 10 to 1250A � Employing a fixed thermal and fixed magnetic trip. � Frames made of rigid materials of engineering plastics � Complete range of one, two, three and four-pole version � 4-class breaking capacity from 10kA to 70kA � Vertical/horizontal installation � Circuit breakers and auxiliaries comply with the following international standard:
High-performance model
NM8, NM8S Adjustable type MCCB
▪ Rated current from 16 to 1600A ▪ Thermal-magnetic type / Electronic type ▪ Adjustable thermal & adjustable magnetic trip ▪ 2P 3P 4P available
NM1
NM8N series Rated current: 16A-1600A Icu: 50KA-150KA NM8
NM1
NM8NL
NM8N DC
NM8N SD
▪ 3-class breaking capacity from 50kA to 150kA ▪ Ics=100%Icu(In≤630A), Ics=50%Icu(In＞630A) ▪ Circuit breakers and auxiliaries comply with the following international standard: IEC/EN 60947-1: general rules IEC/EN 60947-2: circuit breakers IEC/EN 60947-3: switches, disconnectors, switch-disconnectors, etc. IEC/EN 60947-4: contactor and motor starters IEC/EN 60947-5.1 and following: control circuit devices and switching elements, automatic control components. NM8 also comply with the specifications of the marine classification companies.
DNV
IEC/EN 60947-1: general rules IEC/EN 60947-2: circuit breakers automatic control components.
� Certified for operation in pollution-degree � environments as defined by IEC standard 60947 (industrial environments). � Temperature range from -5 � to +40 � � A complete system of add-on modules for Nm1
Cost-effective model
▪ Certified for operation in pollution-degree Ⅲ environments as defined by IEC standard 60947 (industrial environments).
10
▪ Wide temperature range from -5℃ to +40℃ ▪ A complete system of add-on modules for NM8
10
1
2
3
4
NXMS-250H/3300
NXMLE-250S/4300A
NXHM-250
NXM series Rated current: 63A-1600A Icu: 25KA-70KA
5
9
10
11
6
14
15
7
10
10
1
2
9
4
8
3
8
16
4
7
5
Basic model
9
18
13
11
6
3
12
7
1
2
8
11
5
1
5
9
17
MCCB (fixed type)
Auxiliary contact
Cage clamp terminal
17
17
NM1 series Rated current: 10A-1250A Icu: 10KA-70KA
2
6
10
Under-voltage release
Motor-driven operation mechanism
Short terminal cover
17
3
7
11
Shunt release
Extended manual operation handle
Front connection plate
14
6
5
15
5
4
8
Alarm contact MCCB (fixed type)
Mechanical interlock
Extended manual operation handle
Alarm contact
10 Short terminal cover
1
4
7
Under-voltage release
Auxiliary contact
8
Mechanical interlock
2
5
Front connection plate
11
1
6
11
16
Motor driven operating mechanism
Front connection plate
DIN rail adaptor
Body
Motor-driven operation mechanism
Shunt release
3
6
Cage clamp terminal
9
2
7
12
Under-voltage release
Rear connection plate
17
Thermo magnetic release
Cage clamp terminal
3
8
13
Locking system(padlock)
Shunt release
Electronic release
18
Mechanical interlock
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