Adjustable MCCB

WLM6RT-250A-3300 3P/4P WLM6RT Series industrial thermal magnetic type circuit breaker 400V/690V mccb 250A 3/4 Poles adjustable mccb

Rated Current : 250A

Number Of Poles : 3P / 4P

Rated Working Voltage : 400V/690V

3P 4P

01/03

Product Details

Advantages of Adjustable Type of MCCB

The adjustable type of MCCB presents several advantages that make it a preferred choice for various electrical applications. One of the primary advantages is its adaptability to diverse electrical environments. With the ability to customize overload and instantaneous protection settings, the MCCB can be fine-tuned to suit the specific characteristics of the electrical load it is safeguarding. This adaptability ensures optimal protection without compromising the operational efficiency of the connected equipment.

Furthermore, the adjustable type of MCCB offers enhanced precision in protective functions. Traditional fixed settings may not always align with the unique requirements of an electrical system. By allowing adjustments to the overload and instantaneous protection settings, the MCCB can be precisely calibrated to provide the most effective and accurate protection. This level of precision minimizes the risk of both under-protection and unnecessary tripping, thereby improving the overall reliability of the electrical system.

Main performance index of WLM6RT series circuit breaker

WLM6RT Moulded Case Circuit Breaker		250
Rated operating current In (A),40℃	Thermal-magnetic type	100-125-140-160-180-200-225-250
	WLM6RT/Adjustable type	100-125-140-160-180-200-225-250
	WLM6RT/A/Adjustable type Ir	100-125-140-160-180-200-225-250
	WLM6RT/P/Adjustable type li	100-125-140-160-180-200-225-250
Electric characteristics
Rated insulation voltage Ui (V)		1000
Rated impulse withstand voltage (kV)		8
Rated operational voltage Ue(V),AC 50/60Hz		380/400/415,440,500,660/690
Breaking capacity code		C	S	M	H	Q
Number of poles	1P(Adjutable has no this type)	-	-	-	-	-
	2P	-	-	-	-	-
	3P	■	■	■	■	■
	4P	■	■	■	■	■
Number of poles	AC220/230/240V	30	50	65	70	-
	AC380/400/415V	15	30	50	65	100
	AC440V	-	-	-	-	-
	AC500V	-	-	-	-	60
	AC660/690V	5	8	15	20	20
Number of poles	AC220/230/240V	20	25	40	50	-
	AC380/400/415V	10	15	35	50	100
	AC440V	-	-	-	-	-
	AC500V	-	-	-	-	60
	AC660/690V	3	4	10	15	20

Standard		IEC/EN 60947-2
Utilization category		A
Ambient temperature		-40℃ ~+70 ℃
Safety of insulation		■
Arcing distance		0
Mechanical life (CO recycle)	Maintenance	15000
Electrical life (CO recycle)	AC415V,In	8000
	AC690V,In	2000
Release units
Distribution protection	TM	■
Motor protection	TM	■
Mounting and connection
Fixed	Front connection	■
	Rear connection	■
Plug-in	Front connection	■
	Rear connection	■
Draw-out	Front connection	-
	Rear connection	-
DIN rail	Front connection	■
Dimension
Dimension (mm) W×H×D	Width (3P/4P)	105/140
	Height	165/157(Q type)
	Depth	68/88(H&Q type)
Weight
Distribution protection	1P	-
	2P	-
	3P	1.933
	4P	2.578