PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
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PCB terminal block, nominal current: 24 A, rated voltage (III/2): 400 V, nominal cross section: 2.5
mm2, number of potentials: 20, number of rows: 1, number of positions per row: 20, product
range: MKDSN 2,5, pitch: 5 mm, connection method: Screw connection with tension sleeve,
screw head form: H1L Philipps recess with slotted Torx, mounting: Wave soldering,
conductor/PCB connection direction: 0 °, Pin layout: Linear pinning, Solder pin [P]: 3.5 mm,
number of solder pins per potential: 1, type of packaging: packed in cardboard
Your advantages
• Well-known connection principle allows worldwide use
• Low temperature rise, thanks to maximum contact force
• Allows connection of two conductors
• Extremely small design for the respective conductor cross section
• Integrated protective guide prevents incorrect insertion of the conductor underneath the tension sleeve
• The latching on the side enables various numbers of positions to be combined
Commercial Data
Item number
1783021
Packing unit
1 pc
Minimum order quantity
50 pc
Note
Made to Order (non-returnable)
Sales Key
A01
Product Key
AAMFHD
GTIN
4046356549417
Weight per Piece (including packing)
30.249 g
Weight per Piece (excluding packing)
30.249 g
Customs tariff number
85369010
Country of origin
DE
Dec 4, 2022, 2:11 AM
Page 1 (8)
PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Technical Data
Product properties
Type
PC terminal block can be aligned
Product line
COMBICON Terminals M
Product type
Printed circuit board terminal
Number of positions
20
Pitch
5 mm
Number of connections
20
Number of rows
1
Number of potentials
20
Pin layout
Linear pinning
Solder pins per potential
1
Electrical properties
Nominal current IN
24 A
Nominal voltage UN
400 V
Degree of pollution
3
Rated voltage (III/3)
250 V
Rated surge voltage (III/3)
4 kV
Rated voltage (III/2)
400 V
Rated surge voltage (III/2)
4 kV
Connection data
Connection technology
Type
PC terminal block can be aligned
Nominal cross section
2.5 mm²
Conductor connection
Connection method
Screw connection with tension sleeve
Conductor cross section solid
0.2 mm² ... 2.5 mm²
Conductor cross section flexible
0.2 mm² ... 2.5 mm²
Conductor cross section AWG
24 ... 14
Conductor cross section flexible, with ferrule without plastic
sleeve
0.25 mm² ... 2.5 mm²
Conductor cross section, flexible, with ferrule, with plastic sleeve
0.25 mm² ... 2.5 mm²
2 conductors with same cross section, solid
0.2 mm² ... 0.75 mm²
2 conductors with same cross section, flexible
0.2 mm² ... 0.75 mm²
2 conductors with same cross section, flexible, with ferrule
without plastic sleeve
0.25 mm² ... 0.75 mm²
2 conductors with the same cross section, flexible, with TWIN
ferrule with plastic sleeve
0.5 mm² ... 1.5 mm²
Stripping length
6.5 mm
Tightening torque
0.5 Nm ... 0.6 Nm
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PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Mounting
Mounting type
Wave soldering
Pin layout
Linear pinning
Drive form screw head
Philipps recess with slotted Torx (H1L)
Drive form screw head
Philipps recess with slotted Torx (H1L)
Material specifications
Material data - contact
Note
WEEE/RoHS-compliant, free of whiskers according to IEC
60068-2-82/JEDEC JESD 201
Contact material
Cu alloy
Surface characteristics
Tin-plated
Metal surface terminal point (top layer)
Tin (4 - 8 µm Sn)
Metal surface soldering area (top layer)
Tin (4 - 8 µm Sn)
Material data - housing
Insulating material
PA
Insulating material group
I
CTI according to IEC 60112
600
Flammability rating according to UL 94
V0
Glow wire flammability index GWFI according to EN 60695-2-12
850
Glow wire ignition temperature GWIT according to EN 60695-213
775
Temperature for the ball pressure test according to EN 6069510-2
125 °C
Notes
Note on application
For safe conductor connection, always adhere to a defined
tightening torque. Particularly in the case of PCB terminal blocks
with two or three positions, the individual solder pin for each
contact point cannot compensate for this. That is why the
terminal blocks must be supported during conductor connection
(held with one hand, support on the housing).
Dimensions
Dimensional drawing
Pitch
5 mm
Width [w]
100 mm
Height [h]
18.5 mm
Length [l]
9.5 mm
Installed height
15 mm
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PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Solder pin length [P]
3.5 mm
PCB design
Pin spacing
5 mm
Mechanical tests
Test for conductor damage and slackening
Specification
IEC 60999-1:1999-11
Result
Test passed
Pull-out test
Specification
IEC 60999-1:1999-11
Conductor cross section/conductor type/tractive force
setpoint/actual value
0.2 mm² / flexible / > 10 N
0.2 mm² / solid / > 10 N
2.5 mm² / flexible / > 50 N
2.5 mm² / solid / > 50 N
Electrical tests
Temperature-rise test
Specification
IEC 60947-7-4:2013-08
Requirement temperature-rise test
The sum of ambient temperature and temperature rise of the
PCB terminal block shall not exceed the upper limiting
temperature.
Short-time withstand current
Specification
IEC 60947-7-4:2013-08
Insulation resistance
Specification
IEC 60512-3-1:2002-02
Insulation resistance, neighboring positions
> 5 MΩ
Air clearances and creepage distances |
Specification
IEC 60947-1:2007-06 + A1:2010-12 + A2:2014-09
Insulating material group
I
Comparative tracking index (IEC 60112)
CTI 600
Rated insulation voltage (III/3)
250 V
Rated surge voltage (III/3)
4 kV
minimum clearance value - non-homogenous field (III/3)
3 mm
minimum creepage distance (III/3)
3.2 mm
Rated insulation voltage (III/2)
400 V
Rated surge voltage (III/2)
4 kV
minimum clearance value - non-homogenous field (III/2)
3 mm
minimum creepage distance (III/2)
3 mm
Rated insulation voltage (II/2)
630 V
Rated surge voltage (II/2)
4 kV
minimum clearance value - non-homogenous field (II/2)
3 mm
Dec 4, 2022, 2:11 AM
Page 4 (8)
PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
minimum creepage distance (II/2)
3.2 mm
Environmental and real-life conditions
Vibration test
Specification
IEC 60068-2-6:2007-12
Frequency
10 - 150 - 10 Hz
Sweep speed
1 octave/min
Amplitude
0.35 mm (10 Hz ... 60.1 Hz)
Sweep speed
5g (60.1 - 150 Hz)
Test duration per axis
2.5 h
Glow-wire test
Specification
IEC 60695-2-10:2000-10
Temperature
850 °C
Time of exposure
5s
Aging
Specification
IEC 60947-7-4:2013-08
Ambient conditions
Ambient temperature (operation)
-40 °C ... 100 °C (Depending on the current carrying
capacity/derating curve)
Ambient temperature (storage/transport)
-40 °C ... 70 °C
Relative humidity (storage/transport)
30 % ... 70 %
Ambient temperature (assembly)
-5 °C ... 100 °C
Packaging specifications
Type of packaging
packed in cardboard
Dec 4, 2022, 2:11 AM
Page 5 (8)
PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Drawings
Current strength [A]
Diagram
48
44
40
36
32
28
24
20
16
12
8 = 2,5 mm²
4
0
0 10 20 30
40
50
60
70
80
90 100 110
Ambient temperature [°C]
Type: MKDSN 2,5/...
Dec 4, 2022, 2:11 AM
Page 6 (8)
PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Classifications
ECLASS
ECLASS-9.0
27440401
ECLASS-10.0.1
27440401
ECLASS-11.0
27460101
ETIM
ETIM 7.0
EC002643
UNSPSC
UNSPSC 21.0
39121432
Dec 4, 2022, 2:11 AM
Page 7 (8)
PCB terminal block - MKDSN 2,5/20 BK
1783021
https://www.phoenixcontact.com/us/products/1783021
Environmental Product Compliance
China RoHS
Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the
manufacturer’s declaration available under “Downloads”
Phoenix Contact 2022 © - all rights reserved
https://www.phoenixcontact.com
Phoenix Contact USA
586 Fulling Mill Road
Middletown, PA 17057, United States
(+717) 944-1300
info@phoenixcon.com
Dec 4, 2022, 2:11 AM
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