KDSI-SR 10/24 BK
Product information:
Cable entry with TPE seal, Mounting type: Screws, Length: 153 mm, Width: 64 mm, IP 66, Colour: Black
































Product number:
28883.4
GTIN (EAN):
4044211242107
Quantity:
General | |
---|---|
Packaging unit: | 1 |
Quantity unit: | PC |
Weight per piece (not including packaging): | 94 g |
Weight per piece (including packaging): | 124.6 g |
Unit of weight: | G |
Customs number: | 39259020 |
Country of origin: | DE |
Product description: | Cable Entry |
Colour: | Black |
Dimensions | |
---|---|
Length: | 153 mm |
Lenght of wall cutout: | 112 mm |
Width: | 64 mm |
Width of wall cutout: | 36 mm |
Height: | 24.2 mm |
Installation height: | 24.2 mm |
Diameter of the screw holes: | 5.5 mm |
Distance between wall cut-outs min.: | 70 mm |
Materials | |
Material: | Polyamide 6.6 |
Glass-fibre reinforced: | |
Flammability class UL 94: | V-0 |
Working temperature, min.: | -40 °C |
Working temperature, max.: | 120 °C |
Sealing material: | TPE |
Halogen-free: | |
Silicone-free: | |
Further technical data | |
Mounting type: | Screws |
Degree of protection: | IP66 |
NEMA Type: | 1, 12, 4x (indoor use only) |
Number of screw holes: | 4 |
Fixing screws: | M 5 (ISO 4762 / DIN 912) |
Torque of the fixing screws: | 3 Nm |
Assembly instruction: | Also suitable for mounting on extended wall cutouts 113.5 mm x 46 mm. |
Environmental Product Compliance | |
REACH Conform: | yes |
REACH Reference date: | 2023-01-17 |
REACH Candidate Substance Note: | No |
RoHS Conform: | yes |
cUL Recognized | |
---|---|
cUL approval: | C22.2 No. 14-18 |
cUL File Number: | E489821 |
cUL Recognized: | |
UL Recognized | |
UL approval: | UL 508A |
UL File Number : | E489821 |
UL Recognized: | |
UL Type Rating: | 1, 12, 4x (indoor use only) |
File | Language | Type | Size | Version |
---|---|---|---|---|
CAD_28883_4_KDSI-SR_10-24 | STP | 1.36 MB | 5/11/21 | |
Operating and assembly instructions KDSI | German, English | 0.29 MB | 7/9/21 |
- Inlays
-
- Locking mechanism
-
KDSI-AVR BKArt.-Nr.: 28894.4Optional external locking element to secure the sealing elements against pressing out without tools, Mounting type: Plug in
- Actuating tool
- EMC brackets
-
KDS-EMV-SAB 10/24Art.-Nr.: 28626.0Shield-connection rail enabling mounting of shield connection clips directly on cable entry system KDS and KES, Mounting type: Screw, Length: 35,3 mm, Width: 140 mm, Height: 16 mm, Profile: 10x3 mm
- Sheet-metal puncher
-
BL-VA KDS-SR 10/24Art.-Nr.: 28686.0Sheet metal punch for rectangular openings, Dimensions opening: 130 x 46 mm, Maximum wall thickness: 2.0 mm for stainless steel sheet, Material: steel
- Small Seals
-
KDS-DE 6-7 GRArt.-Nr.: 28567.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 7 mm, IP 66, Colour: GreyKDS-DE 7-8 GRArt.-Nr.: 28568.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 8 mm, IP 66, Colour: GreyKDS-DE 8-9 GRArt.-Nr.: 28569.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 9 mm, IP 66, Colour: GreyKDS-DE 9-10 GRArt.-Nr.: 28570.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 10 mm, IP 66, Colour: GreyKDS-DE 10-11 GRArt.-Nr.: 28571.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 11 mm, IP 66, Colour: GreyKDS-DE 11-12 GRArt.-Nr.: 28572.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 12 mm, IP 66, Colour: GreyKDS-DE 12-13 GRArt.-Nr.: 28573.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 13 mm, IP 66, Colour: GreyKDS-DE 2-3 GRArt.-Nr.: 28563.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: GreyKDS-DE 3-4 GRArt.-Nr.: 28564.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4 mm, IP 66, Colour: GreyKDS-DE 4-5 GRArt.-Nr.: 28565.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: GreyKDS-DE 5-6 GRArt.-Nr.: 28566.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6 mm, IP 66, Colour: GreyKDS-DE 13-14 GRArt.-Nr.: 28574.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 14 mm, IP 66, Colour: GreyKDS-DE 2X4-5 GRArt.-Nr.: 28595.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: GreyKDS-DE 2X5-6 GRArt.-Nr.: 28596.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6 mm, IP 66, Colour: GreyKDS-DE 4X2-3 GRArt.-Nr.: 28597.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: GreyKDS-DE 4X3-4 GRArt.-Nr.: 28598.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4 mm, IP 66, Colour: GreyKDS-DE/2XASI BKArt.-Nr.: 28560.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, IP 66, Colour: BlackKDS-DE/B GRArt.-Nr.: 28561.6Seal dummy, Mounting type: Plug in, Length x width: 20.3 mm, IP 66, Colour: GreyKDS-DE 1,5-2 GRArt.-Nr.: 28562.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 2 mm, IP 66, Colour: GreyKDS-DE 2X6,5 BKArt.-Nr.: 28682.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6.5 mm, IP 66, Colour: BlackKDS-DE 3X5-6 BKArt.-Nr.: 28687.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6.5 mm, IP 66, Colour: BlackKDS-DE 2 GRArt.-Nr.: 28696.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 2 mm, IP 66, Colour: GreyKDS-DE 3 BKArt.-Nr.: 28697.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: BlackKDS-DE 3 GRArt.-Nr.: 28698.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: GreyKDS-DE 4X6 GRArt.-Nr.: 28762.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6.1 mm, IP 66, Colour: GreyKDS-DE 4X6 BKArt.-Nr.: 28763.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6.1 mm, IP 66, Colour: BlackKDS-DE/2XASI GRArt.-Nr.: 28600.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, IP 66, Colour: GreyKDS-DE 4X4,5 GRArt.-Nr.: 28606.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4.5 mm, IP 66, Colour: GreyKDS-DE 2X6,5 GRArt.-Nr.: 28607.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6.5 mm, IP 66, Colour: GreyKDS-DE 14-15 BKArt.-Nr.: 28608.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 15 mm, IP 66, Colour: BlackKDS-DE 14-15 GRArt.-Nr.: 28609.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 15 mm, IP 66, Colour: GreyKDS-DE 15-16 BKArt.-Nr.: 28670.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 16 mm, IP 66, Colour: BlackKDS-DE 15-16 GRArt.-Nr.: 28671.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 17 mm, IP 66, Colour: GreyKDS-DE 4X5 BKArt.-Nr.: 28672.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: BlackKDS-DE 4X5 GRArt.-Nr.: 28673.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: GreyKDS-DE 4X4,5 BKArt.-Nr.: 28681.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4.5 mm, IP 66, Colour: BlackKDS-DE 10-11 BKArt.-Nr.: 28530.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 11 mm, IP 66, Colour: BlackKDS-DE 11-12 BKArt.-Nr.: 28531.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 12 mm, IP 66, Colour: BlackKDS-DE 12-13 BKArt.-Nr.: 28532.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 13 mm, IP 66, Colour: BlackKDS-DE 13-14 BKArt.-Nr.: 28533.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 14 mm, IP 66, Colour: BlackKDS-DE/K 2-11 BKArt.-Nr.: 28553.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 11 mm, IP 66, Colour: BlackKDS-DE 2X4-5 BKArt.-Nr.: 28555.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: BlackKDS-DE 2X5-6 BKArt.-Nr.: 28556.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6 mm, IP 66, Colour: BlackKDS-DE 4X2-3 BKArt.-Nr.: 28557.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: BlackKDS-DE 4X3-4 BKArt.-Nr.: 28558.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4 mm, IP 66, Colour: BlackKDS-DE/1XASI BKArt.-Nr.: 28559.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, IP 66, Colour: BlackKDS-DE/B BKArt.-Nr.: 28520.4Seal dummy, Mounting type: Plug in, Length x width: 20.3 mm, IP 66, Colour: BlackKDS-DE 1,5-2 BKArt.-Nr.: 28521.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 2 mm, IP 66, Colour: BlackKDS-DE 2-3 BKArt.-Nr.: 28522.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 3 mm, IP 66, Colour: BlackKDS-DE 3-4 BKArt.-Nr.: 28523.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 4 mm, IP 66, Colour: BlackKDS-DE 4-5 BKArt.-Nr.: 28524.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 5 mm, IP 66, Colour: BlackKDS-DE 5-6 BKArt.-Nr.: 28525.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6 mm, IP 66, Colour: BlackKDS-DE 6-7 BKArt.-Nr.: 28526.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 7 mm, IP 66, Colour: BlackKDS-DE 7-8 BKArt.-Nr.: 28527.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 8 mm, IP 66, Colour: BlackKDS-DE 8-9 BKArt.-Nr.: 28528.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 9 mm, IP 66, Colour: BlackKDS-DE 9-10 BKArt.-Nr.: 28529.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 10 mm, IP 66, Colour: BlackKDS-DE 3X5-6 GRArt.-Nr.: 28688.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 6 mm, IP 66, Colour: GreyKDS-DE 2X7 BKArt.-Nr.: 28689.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 7 mm, IP 66, Colour: BlackKDS-DE 2X7 GRArt.-Nr.: 28690.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 7 mm, IP 66, Colour: GreyKDS-DE 2X8 BKArt.-Nr.: 28691.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 8 mm, IP 66, Colour: BlackKDS-DE 2X8 GRArt.-Nr.: 28692.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 8 mm, IP 66, Colour: GreyKDS-DE 1,5 BKArt.-Nr.: 28693.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 1.5 mm, IP 66, Colour: BlackKDS-DE 1,5 GRArt.-Nr.: 28694.6Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 1.5 mm, IP 66, Colour: GreyKDS-DE 2 BKArt.-Nr.: 28695.4Seal, Mounting type: Plug in, Length x width: 20.3 mm, Max. cable diameter: 2 mm, IP 66, Colour: Black
- Big Seals
-
KDS-DEG 19-20 BKArt.-Nr.: 28540.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 20 mm, IP 66, Colour: BlackKDS-DEG 32-33 BKArt.-Nr.: 28601.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 33 mm, IP 66, Colour: BlackKDS-DEG/B BKArt.-Nr.: 28534.4Seal dummy, Mounting type: Plug in, Length x width: 42.8 mm, IP 66, Colour: BlackKDS-DEG 14-15 BKArt.-Nr.: 28535.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 15 mm, IP 66, Colour: BlackKDS-DEG 15-16 BKArt.-Nr.: 28536.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 16 mm, IP 66, Colour: BlackKDS-DEG 16-17 BKArt.-Nr.: 28537.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 17 mm, IP 66, Colour: BlackKDS-DEG 17-18 BKArt.-Nr.: 28538.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 18 mm, IP 66, Colour: BlackKDS-DEG 23-24 BKArt.-Nr.: 28544.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 24 mm, IP 66, Colour: BlackKDS-DEG 19-20 GRArt.-Nr.: 28581.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 20 mm, IP 66, Colour: GreyKDS-DEG 20-21 GRArt.-Nr.: 28582.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 21 mm, IP 66, Colour: GreyKDS-DEG 21-22 GRArt.-Nr.: 28583.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 22 mm, IP 66, Colour: GreyKDS-DEG 22-23 GRArt.-Nr.: 28584.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 23 mm, IP 66, Colour: GreyKDS-DEG 24-25 BKArt.-Nr.: 28545.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 25 mm, IP 66, Colour: BlackKDS-DEG 25-26 BKArt.-Nr.: 28546.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 26 mm, IP 66, Colour: BlackKDS-DEG 26-27 BKArt.-Nr.: 28547.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 27 mm, IP 66, Colour: BlackKDS-DEG 27-28 BKArt.-Nr.: 28548.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 28 mm, IP 66, Colour: BlackKDS-DEG 28-29 BKArt.-Nr.: 28549.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 29 mm, IP 66, Colour: BlackKDS-DEG 29-30 BKArt.-Nr.: 28550.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 30 mm, IP 66, Colour: BlackKDS-DEG 30-31 BKArt.-Nr.: 28551.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 31 mm, IP 66, Colour: BlackKDS-DEG 31-32 BKArt.-Nr.: 28552.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 32 mm, IP 66, Colour: BlackKDS-DEG 17-18 GRArt.-Nr.: 28579.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 18 mm, IP 66, Colour: GreyKDS-DEG 18-19 GRArt.-Nr.: 28580.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 19 mm, IP 66, Colour: GreyKDS-DEG/B GRArt.-Nr.: 28575.6Seal dummy, Mounting type: Plug in, Length x width: 42.8 mm, IP 66, Colour: GreyKDS-DEG 14-15 GRArt.-Nr.: 28576.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 15 mm, IP 66, Colour: GreyKDS-DEG 15-16 GRArt.-Nr.: 28577.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 16 mm, IP 66, Colour: GreyKDS-DEG 16-17 GRArt.-Nr.: 28578.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 17 mm, IP 66, Colour: GreyKDS-DEG 31-32 GRArt.-Nr.: 28593.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 32 mm, IP 66, Colour: GreyKDS-DEG 32-33 GRArt.-Nr.: 28594.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 33 mm, IP 66, Colour: GreyKDS-DEG 33-34 BKArt.-Nr.: 28730.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 34 mm, IP 66, Colour: BlackKDS-DEG 33-34 GRArt.-Nr.: 28731.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 34 mm, IP 66, Colour: GreyKDS-DEG 34-35 BKArt.-Nr.: 28732.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 35 mm, IP 66, Colour: BlackKDS-DEG 34-35 GRArt.-Nr.: 28733.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 35 mm, IP 66, Colour: GreyKDS-DEG 22-23 BKArt.-Nr.: 28543.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 23 mm, IP 66, Colour: BlackKDS-DEG/K 7-24 BKArt.-Nr.: 28554.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 24 mm, IP 66, Colour: BlackKDS-DEG 23-24 GRArt.-Nr.: 28585.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 24 mm, IP 66, Colour: GreyKDS-DEG 24-25 GRArt.-Nr.: 28586.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 25 mm, IP 66, Colour: GreyKDS-DEG 25-26 GRArt.-Nr.: 28587.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 26 mm, IP 66, Colour: GreyKDS-DEG 26-27 GRArt.-Nr.: 28588.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 27 mm, IP 66, Colour: GreyKDS-DEG 27-28 GRArt.-Nr.: 28589.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 28 mm, IP 66, Colour: GreyKDS-DEG 28-29 GRArt.-Nr.: 28590.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 29 mm, IP 66, Colour: GreyKDS-DEG 29-30 GRArt.-Nr.: 28591.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 30 mm, IP 66, Colour: GreyKDS-DEG 30-31 GRArt.-Nr.: 28592.6Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 31 mm, IP 66, Colour: GreyKDS-DEG 18-19 BKArt.-Nr.: 28539.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 19 mm, IP 66, Colour: BlackKDS-DEG 20-21 BKArt.-Nr.: 28541.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 21 mm, IP 66, Colour: BlackKDS-DEG 21-22 BKArt.-Nr.: 28542.4Seal, Mounting type: Plug in, Length x width: 42.8 mm, Max. cable diameter: 22 mm, IP 66, Colour: Black