Electronic Adjustable Type MCCB with LCD WM8EY

Model	WM8EY-250	WM8EY-400	WM8EY-630	WM8EY-800	WM8EY-1250
Rated frame current Inm (A)	250	400	630	800	1250
Rated operational current In (A)	125A(0.4~1.0In) 250A(0.4~1.0In)	400A(0.4~1.0In)	630A(0.4~1.0In)	630A(0.4-1.0In) 800A(0.4~1.0In)	1000A(0.4-1.0In) 1250A(0.4~1.0In)
Rated insulation voltage Ui (V)	1000V
Rated impulse withstand voltage Uimp (kV)	8KV
Rated operational voltage Ue (V),AC 50/60Hz	AC400V
Breaking capacity code	H
Number of poles	3P,4P
Rated service short circuit breaking capacity Ics (kA)	65	70	70	65	65
Rated ultimate short circuit breaking ca pacity Icu (kA)	65	70	70	85	80
Rated short-time withstand current Icw (kA)	/	10kA/1S	10kA/1S	20kA/1S	20kA/1S
Standards	IEC60947-2
Utilization category	B
Isolation function	■
Trip unit type	Electronic
Mechanical life (times)	7000	4000	4000	2500	2500
Electrica llife (times)	1000	1000	1000	500	500
Communications protocol	DL/T 645; Modbus-RTU(requires user customization)
Communications rate	600bps, 1200bps, 2400bps,4800bps, 9600bps, 19200bps

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WM8EY series offers a range of molded case circuit breakers with an electronic trip unit, featuring an LCD display that provides easieraccess to crucialinformation about the MCCB. These MCCBs are suitable for use with AC 50Hz, rated voltage of 69oVand below, and rated current up to 1250A.

Frame size: 250A, 400A, 630A, 800A,1250A

Number of poles: 3P, 4P

Rated operational voltage Ue (V/AC):230/400/415/690

Trip unit type: electronic type

Breakingcapacitycode: H

Installation method: Fixed type; plug-in type