Small 3P Circuit Breaker 63A 690V Molded Case Breaker

Price Negotiable

Price: $10

MOQ: 1

Delivery Time: 10 days

Brand: MacweyTEK

Product Description

63A 690V 3P Molded Case Circuit Breaker MCCB with High Breaking Capacity and Isolation Function

The MKLB series molded case circuit breaker is our advanced circuit protection solution, incorporating international design and manufacturing technology. Available in L-type (standard), M-type (higher breaking), and H-type (current limiting) variants based on rated ultimate short circuit breaking capacity (Icu).

Product Features

Suitable for AC 50Hz/60Hz circuits with rated insulation voltage up to 1000V (800V for MKLB1-63, 1140V for MKLB1-1600)
Rated operating voltage: 400V/690V (1140V for MKLB1-1600)
Rated current up to 1600A for infrequent switching and motor starting
Provides overload, short circuit, and under voltage protection
Compact design with high breaking capacity and short arcing
Vibration resistant with isolation function
Compliant with GB/T 14048.2 and IEC60947-2 standards
Allows for reverse wiring

Technical Specifications

Rated frame current Inm(A)	63	125	250	400	630	800	1600
Rated current In(A), 40℃	10-63	16-125	100-250	225-400	400-630	630-800	800-1600
Rated insulation voltage Ui(V)	800	1000	1000	1000	1000	1140	1140
Rated impulse withstand voltage Uimp(Kv)	8	12	12	12	12	12	12
Rated operating voltage Ue(V)	400,690	400,690	400,690	400,690	400,690	400,690,800,1140	400,690,800,1140
Selective category	A	A	A	A	A	A	A
Arc distance(mm)	≤50	≤50	≤50	≤50	≤100	≤100	≤120
Electrical life (power-on)	1500	1000	1000	1000	1000	500	500
Mechanical life (power-off)	8500	7000	7000	4000	4000	2500	2500