GYCM8 Moulded Case Circuit Breaker-1
GYCM8 Moulded Case Circuit Breaker-2
GYCM8 Moulded Case Circuit Breaker-3
GYCM8 Moulded Case Circuit Breaker-4
GYCM8 Moulded Case Circuit Breaker-6
GYCM8 Moulded Case Circuit Breaker-5

GYCM8 Moulded Case Circuit Breaker 10A-2000A DEKRA&KEMA

AC 230V/400V/690V Moulded Case Circuit Breaker 1P 2P 3P 4P CE CB DEKRA KEMA Certified

Product Highlights

  • Rated current:10-2000A
  • Rated voltage: AC 230V/400V/690V
  • Number of Poles:1P/2P/3P/4P
  • Reference temperature:40℃-55℃
  • Product Advantages:1.Low temperature rise 2.Small volume 3.Intergrated 4.Adopting a multi blade design 5.Equipped with thermal magnetic protection function
GYCM8 Moulded Case Circuit Breaker Certifications

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→ Download GEYA CYCM8 MCCB packing list

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SKU GYCM8 Category

Description

GYCM8 Moulded Case Circuit Breaker Advantages

Product Advantages

The ​GYCM8 series MCCB delivers compact, high-performance electrical protection with 5 key advantages:

  • Low temperature rise：Reduces heat generation by up to 30% under heavy loads.Ideal for continuous operation in high-temperature environments.Compact Design (30% Smaller)
  • Small volume：Space-saving dimensions for tight enclosures.Easy integration into switchboards and control panels.Integrated Multi-Functional Protection
  • Equipped with thermal magnetic protection function：Combines thermal and magnetic protection for overload & short-circuit defence.Compliant with IEC/GB standards for safety and reliability.High-Breaking Capacity (Up to 65,000A)
  • Adopting a multi blade design：Rapid fault current interruption via advanced multi-blade technology.Enhanced arc-extinguishing performance for industrial-grade safety.​Customizable Configurations
  • ​Intergrated：Wide range of accessories (e.g., overloads, under-voltage releases).Supports flexible current ratings: ​100A–630A (standard/optional variants).

 

GYCM8 Moulded Case Circuit Breaker Certification

Product Certifications

GEYA’s Moulded Case Circuit Breaker is certified by world-renowned organizations to meet the legal standards of various regions around the world. Our global certifications include: CB, CE, DEKRA, KEMA. Meet the bidding requirements.

GYCM8 MCCB Breaking Capacity Table

Voltage 230V/1P 230V 400V 690V
Parameter Icu Ics Icu Ics Icu Ics Icu Ics
GYCM8-125S 10 7.5 15 15 10 7.5 / /
GYCM8-125M 15 10 25 20 15 10 / /
GYCM8-160S 35 25 20 15 / /
GYCM8-160M 65 50 30 20 10 8
GYCM8-250S 35 25 20 15 10 8
GYCM8-250M 50 50 35 25 15 10
GYCM8-400M 50 35 35 25 15 10
GYCM8-630M 50 35 35 25 15 10
GYCM8-800H 65 50 50 35 20 15
GYCM8-1000H 65 65 50 35 25 15
GYCM8-1250H 65 65 50 35 25 15
GYCM8-1600H 75 65 50 35 25 25

Main performance indicators

Molded case circuit breaker GYCM8-125 GYCM8-160
Shell  level  current  In: 10A、16A、20A、25A、32A、40A、50A、63A、80A、100A、125A 10A、16A、20A、25A、32A、40A、50A、63A、80A、100A、125A、140A、160A
Short circuit breaking capacity code: C S M H C S M H
Number of poles: 1P;2P:3P:4P 2P(without M/H);3P;4P
Rated working voltage Ue (V),AC: AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		  AC230V(1P);
AC400V(2P/3P/4P)		 AC230V(1P);
AC400V(2P/3P/4P)		 AC230V
AC400V
AC690V		 AC230V;
AC400V;
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V
Rated insulation voltageUi (V): 1000V 1000V 1000V 1000V 1000V 1000V 1000V 1000V
Rated impulse withstand voltage Uimp(kV): 8kV 8kV  8kV 8kV 8kV 8kV 8kV 8kV
Rated
operating
short-circuit
segmentation
capacity
Ics(%lcu):		 AC230V:  5kA 15kA   35kA (3P/4P) 50kA  7kA 10kA 25kA 35kA
AC400V: 5kA 13kA(3P/4P) 18kA(2P/3P/4P) 50kA 10kA 13kA; 18kA 35kA(2P)
50kA(3P/4P)
AC690V: 3kA 3kA(3P/4P) 5kA(3p/4P) 8kA 2kA 3kA 5kA 10kA
Rated
ultimate
short-circuit
segmentation
capacity
cu(kA):		 AC230V: 8kA 30kA 36kA(1P)
50kA(3P/4P)		 50kA 10kA 20kA 30kA 50kA
AC400V: 8kA 25kA(3p/4P) 36kA(2P/3P/4P) 50kA 15kA 25kA 36kA 50kA
AC690V: 5kA 6kA(3p/4P) 10kA(3p/4P) 15kA 8kA 6kA 10kA 15kA
Selective categories: Class A
Type of overcurrent release: Thermomagnetic   type
GYCM8
External dimensions (mm)width (W)*Length (L)*height(H)		 Shell level current GYCM8-125 GYCM8-160
poles Number   1P 2P 3P 4P 2P 3P 4P
wide 25 50 75 100 60 90 120
length 130 130 130 130 155 155 155
height/
Face cover		 68 68 68 68 68/82 68/82 68/82
height/
Handle		 94.5 94.5 94.5 94.5 94/108 94/108 94/108
Note:The height from the bottom of the base to the (cover/handle)
Molded case circuit breaker GYCM8-250 GYCM8-400 GYCM8-630
Shell level current In: 100A,125A,140A,160A,180A,20OA,225A,250A 250A、315A、350A、400A  500A、630A
Short circuit breaking
capacity code:		 C S M H S  M H M H
Number of poles:  3P;4P 3P;4P 3P;4P
Rated working voltage
Ue(V),AC:		 AC230V
AC400V
AC690V		 AC230V;
AC400V;
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V
Rated insulation voltage
Ui (V):		 1000V 1000V 1000V 1000V 1000V 1000V 1000V 1000V 1000V
Rated impulse withstand
voltage Uimp (kV):		 8kV 8kV 8kV 8kV 8kV 8kV 8kV 8kV 8kV
Rated
operating		 AC230V:   20kA 25kA 40kA 50kA 25kA  40kA 50kA 20kA 30kA
short-circuit
segmentation
capacity
Ics(%lcu):		 AC400V: 10kA 15kA 35kA 50kA 15kA 35kA 65kA 35kA 65kA
AC690V: 3kA 4kA  10kA 15kA 4kA 10kA 12kA 5kA 30kA
Rated
ultimate
short-circuit
segmentation
capacity
cu(kA):		 AC230V: 30kA 50kA 65kA 70kA 50kA 65kA 70kA 30kA 50kA
AC400V: 15kA 30kA 50kA 65kA 30kA 50kA 65kA 50kA 65kA
AC690V: 5kA 8kA 15kA 20kA 8kA 20kA 25kA 10kA 20kA
Selective categories: Class A
Type of overcurrent release: Thermomagnetic type
GYCM8 External dimensions (mm)width (W)*Length (L)*height(H） Shell level current GYCM8-250 GYCM8-400 GYCM8-630
poles Number 3P 4P 3P 4P 3P 4P
wide 105 140 140 184 140 184
length 165 165 257 257 257 257
height/
Face cover		 68 68 68 88 103 103 103 103
height/
Handle		 96 116 96 116 152 152 152 152
Note:The  height  from  the  bottom  of  the  base  to  the(cover/handle)
Molded case circuit breaker GYCM8-800 GYCM8-1250 GYCM8-2000
Shell level current In: 500A、630A、700A、800A  630A、700A、800A、1000A、1250A 1000A、1250A、1600A、2000A
Short circuit breaking capacity code M H S M H M H
Number of poles:                                 3P;4P                            3P;4P                           3P;4P 3P；4P 3P；4P 3P；4P
Rated working voltage
Ue(V),AC:		 AC230V
AC400V
AC690V		 AC230V
AC400V
AC690V		 AC240V;
AC400V;
C690V		 AC230V；AC400V；AC690V AC230V
AC400V
AC690V		 AC400V
AC690V		 AC690V
AC400V
Rated insulation voltage Ui(V): 1000V 1000V 1000V 1000V 1000V 1000V 1000V
Rated impulse withstand
voltage Uimp(kV):		 8kV 8kV 8kV 8kV 8kV 8kV 8kV
Rated operating short-circuit segmentation capacity lcs(%lcu): AC230V: 65KA 70KA 40KA 65KA 70KA 一 一
AC400V: 50KA 65KA 35KA 50KA 65KA 50KA 85KA
AC690V: 15KA 20KA 10KA 15KA 20KA 20KA 20KA
Rated
ultimate
short-circuit
segmentation
capacity
lcu(kA):		 AC230V: 80KA 85KA 65KA 80KA 85KA 一 一
AC400V: 65KA 85KA 50KA 65KA 85KA   50KA   100KA
AC690V: 25KA 35KA 20KA 25KA 35KA   20KA   20KA
Selective categories: Class A
Type of overcurrent release: Thermomagnetic type
GYCM8 External dimensions   (mm)width (W)*Length (L)*height(H) Shell level
current		 GYCM8-800 GYCM8-1250 GYCM8-2000
poles Number 3P 4P 3P 4P 3P 4P
wide 210 280 210 280 210 280
length 275.5 275.5 275.5 275.5 340 340
height/
Face cover		 103 103 103 103 141 141
height/
Handle		 152 152 152 152 244 244
Note:The height from the bottom of the base to the (cover/handle)

Click here to download the GYCM8-250 CB certificate

Click here to download the GYCM8-250 DEKRA certificate148245-148245

Click here to download the GYCM8-250 DEKRA certificate152925-152925

Click here to download the GYCM8-250 DEKRA test report

Click here to download the GYCM8-630 CB certificate

Click here to download the GYCM8-630 DEKRA certificate152512-152512

Click here to download the GYCM8-630 DEKRA certificate153168-153168

Click here to download the GYCM8-630 DEKRA test report

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