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Elecal Electric Appliance Co., Ltd.

Circuit Breaker, Switch, Sm1 manufacturer / supplier in China, offering Sm2 Series Moulded Case Circuit Breaker, Elecal Moulded Case Circuit Breaker, Sm2cseries Moulded Case Circuit Breaker and so on.

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Sm2 Series Moulded Case Circuit Breaker

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Port: Ningbo, China
Transport Package: Carton
Payment Terms: T/T

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Basic Info
  • Model NO.: SM2
  • Operation: Electric Type
  • Arc-extinguishing Medium: Air
  • Structure: Moulded Case Circuit Breaker
  • Type: Circuit Breaker
  • Trademark: ELECAL
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 4
  • Function: Conventional Circuit Breaker
  • Origin: Wenzhou
Product Description
1.Application
SM2 series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.

2.Main Technical Specifications
TypePole numberRated insulating voltage(V)Rated operating voltage(V)Rated ultimate short circuit breaking capacity Icu (KA) at 380/415VRated servies short circuit breaking capacity Ics at 380/415V(KA)Operation performanceUtilization category
ONOFF
SM2-100N3, 4pole750690 and below252515008500A
SM2-100H7070
SM2-100L150150
SM2-160N363610007000
SM2-160H7070
SM2-160L150150
SM2-250N363610007000
SM2-250H7070
SM2-250L150150
SM2-400N454510004000
SM2-400H7070
SM2-400L150150
SM2-630N454510004000
SM2-630H7070
SM2-630L150150
SM2-1250N3 pole5037.510004000
SM2-1600N5037.5
Note:1. The N-pole breaker has no protection which closing and opening with the other three poles. 2. The type of thermal magnetic for SM2-400/630 has no four poles.

3 Trip units main technical parameter
Thermal magnetic release

 
TypeRated currentIn(A)Note
SM2-10012.5,16,20,25,32,40,50,63,80,100Tadjustable (0.8~1In)M adjustable (5~10In)
SM2-16016,20,25,32,40,50,63,80,100,125,160
SM2-250160,180,200,225,250
SM2-400315,350,400
SM2-630400,500,630
SM2-1250800,1000,1250Tadjustable (0.8~1In)M fixed
SM2-16001000,1250,1600


Electronic release
SM2 22SE: protection of low-voltage distribution networks for SM2-100\160\250


1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold

 
TypeRated current In(A)Note
SM2-10040,100Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~.3×Ir (IEC60947-2)
(Long-time overload protection)
Im=2-3-4-5-6-7-8-10×Ir
(Short-circuit protection)
SM2-16040,100,160
SM2-25040,100,160,250

SM2 22ME: protection of motor for SM2-100\160\250


1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10
2. Short-circuit protection with fixed threshold (13xIr)
3. phase failure protection (tripping time delay between 3.5s-6s)
4. Load indication : dark less than 105% of Ir setting threshold; 
Flashing at 105% or more of Ir setting threshold

 
TypeRated current In(A)Note
SM2-10040,50,80,100Ir=0.6-0.63-0.67-0.71-0.75-0.80-0.85-0.90-0.95-1×In
SM2-16040,50,80,100,150
SM2-25040,50,80,100,150,220


SM2 23SE: protection of low-voltage distribution networks for SM2-400\630



1. Overload protection with adjustable threshold
2. Short-circuit protection with adjustable threshold
3. Load indication : light at 90% of Ir setting threshold;
Flashing at 105% or more of Ir setting threshold

 
TypeRated current In(A)Note
SM2-400400Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~1.3×Ir (IEC60947-2)
(Long-time overload protection)
Im=2-3-4-5-6-7-8-10×Ir
(Short-circuit protection)
SM2-630630

SM2 53UE: protection of low-voltage distribution networks for SM2-400\630



1. Overload protection with adjustable threshold, as defined by IEC60947-2
2. Short-circuit protection with adjustable threshold
3. Instantaneous short-circuit protection
4. Earth fault protection with adjustable threshold
5. Load indication : light at 90% of Ir setting threshold;
Flashing more than Ir setting threshold
6. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Earth fault (if earth fault protection option is present)(Ig);
Microprocessor malfunction (both (>Ir) and ( >Im) LEDs go on ,plus the (Ig) LEDs if earth fault protection option is present )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs , the LED indicating the type of fault ,lights for about 10 minutes . The information is however stored in memory . The LED can be illuminated by pressing the test pushbutton. The LED automatically goes off and the memory is cleared when the circuit breaker is reset .

 
TypeRated current In(A)Note
SM2-400400

Ir=0.4~1×In(adjustable 48 setting)
Tripping between 1.05~1.3×Ir (IEC60947-2)
at 6×Ir Trip time: 1s, 2s, 4s, 8s, 16s(adjustable)
(Long-time overload protection)
Isd=1.5-2-3-4-5-6-7-8-10×Ir
Trip time: 0s, 0.1s, 0.2s, 0.3s adjustable+I2t
(Short-circuit short time delay protection)
Ii=1.5-2-3-4-6-7-8-10-11×Ir
(Instantaneous short-circuit protection)
Ig=0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-1×Ir
Trip time: 0.1s, 0.2s, 0.3s, 0.4s adjustable+I2t
(Earth fault protection) (If option is present)

SM2-630630


SM2 43ME: protection of motor for SM2-400\630


1. Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10A,10 and 20
2. Short-circuit protection with adjustable threshold (6...13xIr)
3. Phase failure protection (built-in electronic release: operates unbalanced single-phase currentat 40% and more than )(tripping time delay 4s10%),as defined by IEC60947-4.1
4. Load indication : Flashing more than Ir setting threshold
5. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature (>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Phase failure (right LED);
Microprocessor malfunction ( (>Ir) ( >Im) and phase failure LEDs all go on )
Battery powered. Spare battery are supplied in an adapter box. When a fault occurs ,the LEDindicating the type of fault ,lights for about 10 minutes . The information is however stored inmemory . The LED can be illuminated by pressing the test pushbutton. The LED automaticallygoes off and the memory is cleared when the circuit breaker is reset .
 
TypeRated current In(A)Note
SM2-400400

Ir=0.4~1×In(adjustable 48 setting)
Trip degree: class 10A, 10,20(IEC60947-4)
(Long-time overload protection)
Im=6-7-8-9-10-11-12-13×Ir
(Short-circuit protection)

SM2-630630


4.Accessories
 
AccessoriesRated operating voltageConsumptionFor type
Pick-upSeal-in
Shunt release(MX)24V
100V
220/230V
380/400V
<10VA<5VASM2-100~630
Under-voltagerelease(UN)220/230V
380/400V
<10VA<5VA
 
AccessoriesRated operating voltageConsumptionFor type
AC12AC15
Auxiliary contact(OF)380/400V63SM2-100~630
Alarm contact(AL)380/400V63


Rotary handle
Direct rotary handle
Degree of protection:IP40 
Function: 
1) suitability for isolation 
2) indication of three positions 0(off) I(on) and tripped 
3) press "push to trip" button, can trip-free
4) visibility of and access to trip unit settings 
5) the circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied)
Extended rotary handle
Degree of protection:IP55
Function: 
1) Suitability for isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Visibility of and access to trip unit settings when the door is open
4) Door opening prevented when circuit breaker is on
5) The circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied).Locking prevents opening of the switchboard door

5.Installation
Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
6.Fix
Mounting on backplate , mounting on rails
7.Connection
Front panel connection , black panel connection , plug-in connection 
8. Outline and Installation Dimension
 
 
 
 
 
 
 
SM2-100~630
 
mmCC1C2C3GG1G4G5HH1H2
SM2 100/160/250N/H/L29765410862.51257014080.516194
SM2 400/630N/H/L41.511692.5184100200113.5227127.5255142.5
 
mmH3H4H5H6H7KK1K2LL1L2P1P2P4P5
SM2 100/160/250N/H/L188160.5321178.535717.5357052.51051408186111*83
SM2 400/630N/H/L28524048023747422.545907014018595.5110168107
 
mmP6RR1R2R4R5φTφT4(Ue)
SM2 100/160/250N/H/L8814.52954108143622≤32
SM2 400/630N/H/L11231.56371.5143188632≤32



*P4=126 is suitable for=SM2 250N/H/L
Sm2 Series Moulded Case Circuit Breaker

 
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