WTM7-63 2P DC Miniature Circuit Breaker MCB

Short Description:

The WTM7-63 DC miniature circuit breaker is a type of miniature circuit breaker designed for DC circuits. This model of circuit breaker has a rated current of 63 amperes and is suitable for overload and short circuit protection in DC circuits. The action characteristics of circuit breakers meet the requirements of DC circuits and can quickly cut off the circuit to protect equipment and circuits from overload and short circuit damage. The WTM7-63 DC miniature circuit breaker is usually used in DC circuits such as DC power sources, motor drive systems, and solar power generation systems to provide safe and reliable circuit protection.

WTM7-63 DC MCB supplementary protectors aredesigned to provide overcurrent protection withinappliances or electrical equipment, where a branchcircuit protection is already provided or not requiredDevices are designed for direct current (D C) controlcircu it application s.

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Product Detail

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Specifications

FPV-63 Series Circuit Breaker (WTM7-63)	Specifications
Frame Degree Rated Current (A)	63
Pole	1P
Rated Operating Voltage (V DC)	250
Rated Insulation Voltage Ui (V DC)	1000
Rated Current In (A)	3, 6, 10, 16, 20, 25, 32, 40, 50, 63
Rated Impact Voltage Uimp (kV)	6
Ultimate Breaking Capacity Icu (kA)	6
Run Breaking Capacity Ics (%Icu)	100%
Curve Type	C
Trip Type	Thermal-magnetic
Mechanical	Actual average value
	Standard value
Electrical	Actual average value
	Standard value

Condition and Installation

Parameter	Value 1	Value 2	Value 3	Value 4
Wiring capacity (mm)	≤32A:1-6	≥40A:10-16	-	-
Ambient temperature (°C)	40	-	-	-
Altitude (m)	≤2000	-	-	-
Relative humidity	≤95%	-	-	-
Pollution Level	3	-	-	-
Installation Environment	No obvious shock and vibration	-	-	-
Installation category	Class III	-	-	-
Installation	DIN Standard rail	-	-	-
Dimensions W (mm)	18	36	54	72
Dimensions H (mm)	72	72	72	72
Dimensions D (mm)	50	50	50	50
Weight (kg)	0.13	0.26	0.39	0.52

Connection

Current correction values used at different ambient temperatures

Rated Current (A)	Fixed Current (A)	-35°C	-30°C	-20°C	-10°C	0°C	10°C	20°C	30°C	40°C	50°C	60°C	70°C
3	3.90	3.78	3.69	3.57	3.42	3.30	3.12	3.00	2.88	2.79	2.64	2.49	-
6	7.80	7.56	7.38	7.14	6.84	6.60	6.24	6.00	5.76	5.64	5.28	4.98	-
10	13.20	12.70	12.50	12.00	11.50	11.10	10.60	10.00	9.60	9.30	8.90	8.40	-
16	21.12	20.48	20.00	19.20	18.40	17.76	16.96	16.00	15.36	14.88	14.24	13.44	-
20	26.40	26.40	25.00	24.00	23.00	22.20	21.20	20.00	19.20	18.60	17.80	16.80	-
25	33.00	32.00	31.25	30.00	28.75	27.75	26.50	25.00	24.00	23.25	22.25	21.00	-
32	42.56	41.28	40.00	38.72	37.12	35.52	33.93	32.00	30.72	29.76	28.16	26.88	-
40	53.20	51.20	50.00	48.00	46.40	44.80	42.40	40.00	38.40	37.20	35.56	33.60	-
50	67.00	65.50	63.00	60.50	58.00	56.00	53.00	50.00	48.00	46.50	44.00	41.50	-
63	83.79	81.90	80.01	76.86	73.71	70.56	66.78	63.00	60.48	58.90	55.44	52.29	-