(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
Instead, please kindly use other browsers like Google Chrome, Microsoft Edge or Mozilla Firefox.

7 Million Products, 2,000 Brands.
50,000 Stock items for Same Day Ship Out.

All Categories

Search by Application

inCAD Library

Brands

Brand List

Webcode Seach | Series: #CODE

Keyword suggestions

Part number suggestions

Discontinued Products

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

How can we improve?

How can we improve?

Feedback

Name (Optional)

E-mail Address (Optional)

Tel (Optional)

Thank you for your time.
Your feedback is essential for our continuous improvement
Privacy Policy

Thank you for your cooperation.

Thank you for your time.
Your feedback is essential for our continuous improvement
Please use the inquiry form.

Privacy Policy

NA3VC UL Standard (Part Numbers)

Click this image to zoom it.

Move the mouse over the image to zoom

Volume Discount

MISUMI

300 V cable for fixed signals, ULAWM2517 standard compliant, with excellent oil resistance.

VW-1
ULAWM
Oil-Resistant
Strand Wire
Twisted Pair
300 V

· This product is compatible with "UL Traceability Program / Processed Wire".
(c-UL is not compatible)
* For cables in stock, please keep in mind that because we cut them to the specified size, they cannot be canceled or returned.
* All unit prices are per meter.
Unit Price Calculation Method
[Formula: Last digits of model number (m) x unit price per meter above]
* Color and softness may vary slightly due to manufacturer changes.

Electrical Appliance and Material Safety Law certificate is not obtained.

Part Number

Configured Part Number is shown.

Product specification
Part Numbers

Specifications

Model Number	AWG Size	Core Number / Pair Number ^{* 4} 1P = 2 Cores
Model Number	AWG Size	Core Number / Pair Number ^{* 4} 1P = 2 Cores
NA3VC	25	1P
		1.5P (3-Core)
		2P
		3P
		4P
		5P
		6P
		7P
		8P
		10P
		12P
		15P
		18P
		25P
		32P
	23	1P
		2P
		3P
		4P
		5P
		6P
		7P
		8P
		10P
		12P
		18P
		25P
	21	1P
		2P
		3P
		4P
		5P
		6P
		7P
		8P
		10P
	19	2
		3
		4
		6
		8
		10
		12
	16	2
		3
		4
		6
		8

Be sure to read the following precautions when you place an order.
* Length in "m" is included in our model numbers. Always specify quantity as number of units, not as meters.
*1 Stock products are indicated with T or A in the price column at right.
*2 All unit prices above are per meter.
Unit Price Calculation Method [Formula: Last digits of model number (m) x unit price per meter above]
*3 Please note that when ordering 1000 m and 500 m, the order will be delivered as 100 m windings (we cannot accept orders for single cables).
*4 Check the indications for number of cores, pair number, core / pair number, and pair number / core when ordering.

More Information

Specifications

Model Number	AWG Size	Core Number / Pair Number ^{* 1}1P = 2 Cores	Estimated Section Area (mm²) ^{* 2}	Twisted Structure (See Figure)	Number of Wire Cores	Finished ^*6 Outer Diameter (mm)	Approximate Mass kg/km	Electrical Properties				Conductor			Insulation		Wire Core Outer Diameter Approx. (mm)	Sheath		Specification	Sample Provided^{* 5}
Model Number	AWG Size	Core Number / Pair Number ^{* 1}1P = 2 Cores	Estimated Section Area (mm²) ^{* 2}	Twisted Structure (See Figure)	Number of Wire Cores	Finished ^*6 Outer Diameter (mm)	Approximate Mass kg/km	Allowable Current A (30°C)^{* 3}	Conductor Resistance Ω / km (20°C)	Insulation Properties MΩkm (20°C)	Withstand Voltage V / 5 Minutes	Structure Strands / mm	Outer Diameter Approx. (mm)	Plating ^*4	Thickness (mm)	Material ^*4	Wire Core Outer Diameter Approx. (mm)	Thickness (mm)	Material ^*4	Specification	Sample Provided^{* 5}
NA3VC	25	1P	0.2	Twisted Pair	2	3.9	19.0	4.4	121 or less	10 or more	2000	7/0.18	0.54	Tin	0.23	PVC	1.0	0.9	PVC	ULAWM2517	◎
		1.5P (twisted core)			3	4.1	21.5	3.8										0.9			◎
		2P			4	5.0	29.0	3.5										0.9			◎
		3P			6	5.4	36.8	2.9										1.0			◎
		4P			8	5.8	44.1	2.6										1.0			◎
		5P			10	6.3	51.0	2.4										1.0			◎
		6P			12	6.8	58.5	2.2										1.0			◎
		7P			14	6.8	62.5	2.1										1.0			◎
		8P			16	7.2	70.2	2.0										1.0			◎
		10P			20	8.4	82.1	1.8										1.0			◎
		12P			24	8.8	96.8	1.7										1.1			◎
		15P			30	9.8	119.2	1.5										1.2			◎
		18P			36	10.3	138.9	1.4										1.2			◎
		25P			50	12.1	187.3	1.2										1.3			◎
		32P			64	13.4	235.5	1.1										1.4			◎
	23	1P	0.3		2	4.2	21.9	6.3	71.1 or less	10 or more	2000	12/0.18	0.72		0.24		1.2	0.9			◎
		2P			4	5.7	34.6	5.0										0.9			◎
		3P			6	6.1	45.8	4.2										1.0			◎
		4P			8	6.6	56.3	3.7										1.0			◎
		5P			10	7.2	68.3	3.4										1.0			◎
		6P			12	8.0	78.9	3.1										1.0			◎
		7P			14	8.0	85.8	3.0										1.0			◎
		8P			16	8.8	100.5	2.8										1.1			◎
		10P			20	9.8	122.6	2.6										1.1			◎
		12P			24	10.3	144.4	2.4										1.2			◎
		18P			36	11.9	197.9	2.1										1.2			◎
		25P			50	14.1	273.8	1.7										1.4			◎
	21	1P	0.5		2	4.7	30.3	8.8	41.9 or less	10 or more	2000	20/0.18	0.92		0.24		1.4	0.9			◎
		2P			4	6.5	47.9	7.0										1.0			◎
		3P			6	6.8	61.1	5.8										1.0			◎
		4P			8	7.4	76.3	5.1										1.0			◎
		5P			10	8.0	92.2	4.8										1.0			◎
		6P			12	8.9	112.5	4.3										1.1			◎
		7P			14	8.9	121.4	4.1										1.1			◎
		8P			16	9.9	138.8	3.9										1.1			◎
		10P			20	11.7	174.9	3.6										1.2			◎
	19	2	0.75	Twisted Core Layer	2	5.1	41.0	11.5	27.7 or less	10 or more	2000	30/0.18	1.13		0.24		1.6	0.9			◎
		3			3	5.5	50.6	10.0										1.0			◎
		4			4	6.0	60.7	9.0										1.0			◎
		6			6	6.9	80.0	7.6										1.0			◎
		8			8	7.4	98.8	6.6										1.0			◎
		10			10	8.5	116.5	6.2										1.0			◎
		12			12	8.8	134.7	5.7										1.0			◎
	16	2	1.25		2	6.3	58.8	17.5	15.4 or less	10 or more	2000	54/0.18	1.53		0.28		2.1	1.0			◎
		3			3	6.7	76.9	15.2										1.0			◎
		4			4	7.2	94.6	13.7										1.0			◎
		6			6	8.4	123.3	11.6										1.0			◎
		8			8	8.9	154.7	10.1										1.0			◎

*1 Please note that when the indicated Core / Pair is 1P (1PS), the number of wire cores will be "x 2-core".
*2 The size conversion is for reference only. Refer to the comparison table on >>Click here for details.
*3 The value of allowable current is to be used only as a reference value and is not guaranteed.
*4 How to View Materials
[Plating] Tin... Tin Plated Annealed Copper Wire
[Materials] PVC... Polyvinyl Chloride; PE... Polyethylene-based Material; P... Polyester-based Material; Fluorine... Various Fluorine Resins; *... Other
*5 For the outer diameter size of cables, wire sheath (coat), etc., refer to "Finished Outer Diameter" in the table above.

Current Reduction Factor

Ambient Temperature (°C)	30	40	50	60	70	80	90	100
Current Reduction Factor	1.00	0.90	0.75	0.73	0.65	0.56	0.44	0.27

Allowable current value indicates the calculated value of 1 cable laid aboveground in ambient temperature of 30°C, and is not a guaranteed value.
If the ambient temperature is 30 °C or above, the above current reduction factor is multiplied by the allowable current.
(Example) Allowable current value 4.4 x 0.9 = 3.96 (A) when the ambient temperature for 2-core AWG25 is 40 °C

NA3VC UL Standard:Related Image

: 30; 60; 90

1
2
3
4
5
Next >>

Part Number
NA3VC-16-2-1
NA3VC-16-2-2
NA3VC-16-2-3
NA3VC-16-2-4
NA3VC-16-2-5
NA3VC-16-2-6
NA3VC-16-2-7
NA3VC-16-2-8
NA3VC-16-2-9
NA3VC-16-2-10
NA3VC-16-2-11
NA3VC-16-2-12
NA3VC-16-2-13
NA3VC-16-2-14
NA3VC-16-2-15
NA3VC-16-2-16
NA3VC-16-2-17
NA3VC-16-2-18
NA3VC-16-2-19
NA3VC-16-2-20
NA3VC-16-2-21
NA3VC-16-2-22
NA3VC-16-2-23
NA3VC-16-2-24
NA3VC-16-2-25
NA3VC-16-2-26
NA3VC-16-2-27
NA3VC-16-2-28
NA3VC-16-2-29
NA3VC-16-2-30
NA3VC-16-2-31
NA3VC-16-2-32
NA3VC-16-2-33
NA3VC-16-2-34
NA3VC-16-2-35
NA3VC-16-2-36
NA3VC-16-2-37
NA3VC-16-2-38
NA3VC-16-2-39
NA3VC-16-2-40
NA3VC-16-2-41
NA3VC-16-2-42
NA3VC-16-2-43
NA3VC-16-2-44
NA3VC-16-2-45
NA3VC-16-2-46
NA3VC-16-2-47
NA3VC-16-2-48
NA3VC-16-2-49
NA3VC-16-2-50
NA3VC-16-2-51
NA3VC-16-2-52
NA3VC-16-2-53
NA3VC-16-2-54
NA3VC-16-2-55
NA3VC-16-2-56
NA3VC-16-2-57
NA3VC-16-2-58
NA3VC-16-2-59
NA3VC-16-2-60
NA3VC-16-2-61
NA3VC-16-2-62
NA3VC-16-2-63
NA3VC-16-2-64
NA3VC-16-2-65
NA3VC-16-2-66
NA3VC-16-2-67
NA3VC-16-2-68
NA3VC-16-2-69
NA3VC-16-2-70
NA3VC-16-2-71
NA3VC-16-2-72
NA3VC-16-2-73
NA3VC-16-2-74
NA3VC-16-2-75
NA3VC-16-2-76
NA3VC-16-2-77
NA3VC-16-2-78
NA3VC-16-2-79
NA3VC-16-2-80
NA3VC-16-2-81
NA3VC-16-2-82
NA3VC-16-2-83
NA3VC-16-2-84
NA3VC-16-2-85
NA3VC-16-2-86
NA3VC-16-2-87
NA3VC-16-2-88
NA3VC-16-2-89
NA3VC-16-2-90

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Overall Length (m)	Conductor Cross Section (mm²)	AWG size (AWG)	Number Of Cores (Core)	Logarithm	Finished outer diameter (mm)
SGD 4.98	1 Piece(s)	4 Day(s) or more	-	1	1.25	16	2	-	6.3
SGD 9.95	1 Piece(s)	4 Day(s) or more	-	2	1.25	16	2	-	6.3
SGD 14.94	1 Piece(s)	4 Day(s) or more	-	3	1.25	16	2	-	6.3
SGD 18.20	1 Piece(s)	4 Day(s) or more	-	4	1.25	16	2	-	6.3
SGD 20.44	1 Piece(s)	4 Day(s) or more	-	5	1.25	16	2	-	6.3
SGD 22.69	1 Piece(s)	4 Day(s) or more	-	6	1.25	16	2	-	6.3
SGD 24.94	1 Piece(s)	4 Day(s) or more	-	7	1.25	16	2	-	6.3
SGD 26.57	1 Piece(s)	4 Day(s) or more	-	8	1.25	16	2	-	6.3
SGD 29.44	1 Piece(s)	4 Day(s) or more	-	9	1.25	16	2	-	6.3
SGD 31.69	1 Piece(s)	4 Day(s) or more	-	10	1.25	16	2	-	6.3
SGD 33.94	1 Piece(s)	4 Day(s) or more	-	11	1.25	16	2	-	6.3
SGD 36.18	1 Piece(s)	4 Day(s) or more	-	12	1.25	16	2	-	6.3
SGD 38.43	1 Piece(s)	4 Day(s) or more	-	13	1.25	16	2	-	6.3
SGD 40.68	1 Piece(s)	4 Day(s) or more	-	14	1.25	16	2	-	6.3
SGD 42.93	1 Piece(s)	4 Day(s) or more	-	15	1.25	16	2	-	6.3
SGD 45.18	1 Piece(s)	4 Day(s) or more	-	16	1.25	16	2	-	6.3
SGD 47.43	1 Piece(s)	4 Day(s) or more	-	17	1.25	16	2	-	6.3
SGD 49.68	1 Piece(s)	4 Day(s) or more	-	18	1.25	16	2	-	6.3
SGD 51.92	1 Piece(s)	4 Day(s) or more	-	19	1.25	16	2	-	6.3
SGD 54.17	1 Piece(s)	4 Day(s) or more	-	20	1.25	16	2	-	6.3
SGD 56.42	1 Piece(s)	4 Day(s) or more	-	21	1.25	16	2	-	6.3
SGD 58.66	1 Piece(s)	4 Day(s) or more	-	22	1.25	16	2	-	6.3
SGD 60.92	1 Piece(s)	4 Day(s) or more	-	23	1.25	16	2	-	6.3
SGD 63.17	1 Piece(s)	4 Day(s) or more	-	24	1.25	16	2	-	6.3
SGD 65.42	1 Piece(s)	4 Day(s) or more	-	25	1.25	16	2	-	6.3
SGD 67.66	1 Piece(s)	4 Day(s) or more	-	26	1.25	16	2	-	6.3
SGD 69.91	1 Piece(s)	4 Day(s) or more	-	27	1.25	16	2	-	6.3
SGD 72.16	1 Piece(s)	4 Day(s) or more	-	28	1.25	16	2	-	6.3
SGD 74.40	1 Piece(s)	4 Day(s) or more	-	29	1.25	16	2	-	6.3
SGD 76.65	1 Piece(s)	4 Day(s) or more	-	30	1.25	16	2	-	6.3
SGD 78.91	1 Piece(s)	4 Day(s) or more	-	31	1.25	16	2	-	6.3
SGD 81.15	1 Piece(s)	4 Day(s) or more	-	32	1.25	16	2	-	6.3
SGD 83.40	1 Piece(s)	4 Day(s) or more	-	33	1.25	16	2	-	6.3
SGD 85.65	1 Piece(s)	4 Day(s) or more	-	34	1.25	16	2	-	6.3
SGD 87.90	1 Piece(s)	4 Day(s) or more	-	35	1.25	16	2	-	6.3
SGD 90.14	1 Piece(s)	4 Day(s) or more	-	36	1.25	16	2	-	6.3
SGD 92.39	1 Piece(s)	4 Day(s) or more	-	37	1.25	16	2	-	6.3
SGD 94.64	1 Piece(s)	4 Day(s) or more	-	38	1.25	16	2	-	6.3
SGD 96.89	1 Piece(s)	4 Day(s) or more	-	39	1.25	16	2	-	6.3
SGD 99.14	1 Piece(s)	4 Day(s) or more	-	40	1.25	16	2	-	6.3
SGD 101.39	1 Piece(s)	4 Day(s) or more	-	41	1.25	16	2	-	6.3
SGD 103.64	1 Piece(s)	4 Day(s) or more	-	42	1.25	16	2	-	6.3
SGD 105.88	1 Piece(s)	4 Day(s) or more	-	43	1.25	16	2	-	6.3
SGD 108.13	1 Piece(s)	4 Day(s) or more	-	44	1.25	16	2	-	6.3
SGD 110.38	1 Piece(s)	4 Day(s) or more	-	45	1.25	16	2	-	6.3
SGD 112.63	1 Piece(s)	4 Day(s) or more	-	46	1.25	16	2	-	6.3
SGD 114.88	1 Piece(s)	4 Day(s) or more	-	47	1.25	16	2	-	6.3
SGD 117.13	1 Piece(s)	4 Day(s) or more	-	48	1.25	16	2	-	6.3
SGD 119.37	1 Piece(s)	4 Day(s) or more	-	49	1.25	16	2	-	6.3
SGD 121.62	1 Piece(s)	4 Day(s) or more	-	50	1.25	16	2	-	6.3
SGD 123.87	1 Piece(s)	4 Day(s) or more	-	51	1.25	16	2	-	6.3
SGD 126.12	1 Piece(s)	4 Day(s) or more	-	52	1.25	16	2	-	6.3
SGD 128.36	1 Piece(s)	4 Day(s) or more	-	53	1.25	16	2	-	6.3
SGD 130.62	1 Piece(s)	4 Day(s) or more	-	54	1.25	16	2	-	6.3
SGD 132.87	1 Piece(s)	4 Day(s) or more	-	55	1.25	16	2	-	6.3
SGD 135.11	1 Piece(s)	4 Day(s) or more	-	56	1.25	16	2	-	6.3
SGD 137.36	1 Piece(s)	4 Day(s) or more	-	57	1.25	16	2	-	6.3
SGD 139.61	1 Piece(s)	4 Day(s) or more	-	58	1.25	16	2	-	6.3
SGD 141.86	1 Piece(s)	4 Day(s) or more	-	59	1.25	16	2	-	6.3
SGD 144.10	1 Piece(s)	4 Day(s) or more	-	60	1.25	16	2	-	6.3
SGD 146.35	1 Piece(s)	4 Day(s) or more	-	61	1.25	16	2	-	6.3
SGD 148.61	1 Piece(s)	4 Day(s) or more	-	62	1.25	16	2	-	6.3
SGD 150.85	1 Piece(s)	4 Day(s) or more	-	63	1.25	16	2	-	6.3
SGD 153.10	1 Piece(s)	4 Day(s) or more	-	64	1.25	16	2	-	6.3
SGD 155.35	1 Piece(s)	4 Day(s) or more	-	65	1.25	16	2	-	6.3
SGD 157.59	1 Piece(s)	4 Day(s) or more	-	66	1.25	16	2	-	6.3
SGD 159.84	1 Piece(s)	4 Day(s) or more	-	67	1.25	16	2	-	6.3
SGD 162.09	1 Piece(s)	4 Day(s) or more	-	68	1.25	16	2	-	6.3
SGD 164.35	1 Piece(s)	4 Day(s) or more	-	69	1.25	16	2	-	6.3
SGD 166.59	1 Piece(s)	4 Day(s) or more	-	70	1.25	16	2	-	6.3
SGD 168.84	1 Piece(s)	4 Day(s) or more	-	71	1.25	16	2	-	6.3
SGD 171.09	1 Piece(s)	4 Day(s) or more	-	72	1.25	16	2	-	6.3
SGD 173.33	1 Piece(s)	4 Day(s) or more	-	73	1.25	16	2	-	6.3
SGD 175.58	1 Piece(s)	4 Day(s) or more	-	74	1.25	16	2	-	6.3
SGD 177.83	1 Piece(s)	4 Day(s) or more	-	75	1.25	16	2	-	6.3
SGD 180.08	1 Piece(s)	4 Day(s) or more	-	76	1.25	16	2	-	6.3
SGD 182.33	1 Piece(s)	4 Day(s) or more	-	77	1.25	16	2	-	6.3
SGD 184.58	1 Piece(s)	4 Day(s) or more	-	78	1.25	16	2	-	6.3
SGD 186.83	1 Piece(s)	4 Day(s) or more	-	79	1.25	16	2	-	6.3
SGD 189.07	1 Piece(s)	4 Day(s) or more	-	80	1.25	16	2	-	6.3
SGD 191.32	1 Piece(s)	4 Day(s) or more	-	81	1.25	16	2	-	6.3
SGD 193.57	1 Piece(s)	4 Day(s) or more	-	82	1.25	16	2	-	6.3
SGD 195.81	1 Piece(s)	4 Day(s) or more	-	83	1.25	16	2	-	6.3
SGD 198.06	1 Piece(s)	4 Day(s) or more	-	84	1.25	16	2	-	6.3
SGD 200.32	1 Piece(s)	4 Day(s) or more	-	85	1.25	16	2	-	6.3
SGD 202.57	1 Piece(s)	4 Day(s) or more	-	86	1.25	16	2	-	6.3
SGD 204.81	1 Piece(s)	4 Day(s) or more	-	87	1.25	16	2	-	6.3
SGD 207.06	1 Piece(s)	4 Day(s) or more	-	88	1.25	16	2	-	6.3
SGD 209.31	1 Piece(s)	4 Day(s) or more	-	89	1.25	16	2	-	6.3
SGD 211.55	1 Piece(s)	4 Day(s) or more	-	90	1.25	16	2	-	6.3

1
2
3
4
5
Next >>

Basic Information

Rated Voltage	300V	Shield	None	Properties	Oil resistance
Representative Standard	UL	Sheath (outer coating) color	Navy color	Sheath (outer coating) material	PVC
Insulation body materials	PVC	Power supply/signal	For signals

Configure

4,205 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Overall Length(m)
1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100
Clear
Conductor Cross Section(mm²)
0.2

0.3

0.5

0.75

1.25
Clear
AWG size(AWG)
16

19

21

23

25
Clear
Number Of Cores(Core)
2

3

4

6

8

10

12
Clear
Logarithm
1P

1.5P

2P

3P

4P

5P

6P

7P

8P

10P

12P

15P

18P

25P
Clear
Finished outer diameter(mm)
3.9

4.1

4.2

4.7

5

5.1

5.4

5.5

5.7

5.8

6

6.1

6.3

6.5

6.6

6.7

6.8

6.9

7.2

7.4

8

8.4

8.5

8.8

8.9

9.8

9.9

10.3

11.7

11.9

12.1

14.1
Clear

Days to Ship

All

4 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

All Categories

Categories

Search by Application

Brands

Message from MISUMI

My Favorites

Settings

How can we improve?

NA3VC UL Standard (Part Numbers)

Specifications

More Information

Basic Information

Configure

Specification/Dimensions

Overall Length(m)

Conductor Cross Section(mm²)

AWG size(AWG)

Number Of Cores(Core)

Logarithm

Finished outer diameter(mm)

Days to Ship

Specify Alterations

Tech Support

Payment Method more

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9:00 am – 6:00 pm (Mon – Fri), 9:00 am – 3 pm (Sat)

All Categories

Categories

Search by Application

Brands

Message from MISUMI

My Favorites

Settings

How can we improve?

NA3VC UL Standard (Part Numbers)

Specifications

More Information

Basic Information

Configure

Specification/Dimensions

Overall Length(m)

Conductor Cross Section(mm2)

AWG size(AWG)

Number Of Cores(Core)

Logarithm

Finished outer diameter(mm)

Days to Ship

Specify Alterations

Tech Support

Payment Method more

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9:00 am – 6:00 pm (Mon – Fri), 9:00 am – 3 pm (Sat)

Conductor Cross Section(mm²)