Product Model
MKKDSH 3/ 2-EX
Selling Points
- 1High nominal current of 24 A for reliable connections.
- 2Compliant with stringent safety standards for "Ex e" protection in potentially explosive areas.
- 3Integrated protective guide prevents incorrect conductor insertion.
- 4Latching mechanism allows various position combinations.
- 5RoHS compliant and environmentally friendly with a 50-year use period.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | Printed circuit board terminal | Product family | MKKDSH 3-EX |
Product line | COMBICON Terminals M | Type | PC terminal block can be aligned |
Number of positions | 2 | Pitch | 5 mm |
Number of connections | 2 | Number of rows | 1 |
Number of potentials | 2 | Pin layout | Linear pinning |
Solder pins per potential | 1 | Article revision | 07 |
Nominal current I | 20 A | Nominal voltage U | 176 V |
Rated current / conductor cross section | 20 A/2.5 mm² | Identification | 0344 II 2GD / Ex eb IIC Gb |
EU-type examination certificate | KEMA 01ATEX2130 U | IECEx certificate | IECEx KEM 07.0019 U |
Type | PC terminal block can be aligned | Nominal cross section | 2.5 mm² |
Connection method | Screw connection with tension sleeve | Conductor cross section rigid | 0.2 mm² ... 4 mm²
0.2 mm² ... 4 mm² |
Conductor cross section flexible | 0.2 mm² ... 2.5 mm² | Conductor cross section AWG | 24 ... 12 |
Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 1.5 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 ... 1.5 mm² | 2 conductors with same cross section, flexible | 0.2 mm² ... 1.5 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 | 7 mm | Drive form screw head | Slotted (L) |
Tightening torque | 0.5 Nm ... 0.6 Nm | Mounting type | Wave soldering |
Pin layout | Linear pinning | 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) |
Color (Housing) | green (6021) | 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 60695-2-13 | 775 | Temperature for the ball pressure test according to EN 60695-10-2 | 125 °C |
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). | Pitch | 5 mm |
Width [w] | 10 mm | Height [h] | 36.5 mm |
Length [l] | 11.1 mm | Installed height | 31.5 mm |
Solder pin length [P] | 5 mm | Pin dimensions | 0.9 x 0.9 mm |
Hole diameter | 1.3 mm | Ambient temperature (operation) | -50 °C ... 110 °C |
Ambient temperature (storage/transport) | -40 °C ... 70 °C | Relative humidity (storage/transport) | 30 % ... 70 % |
Ambient temperature (assembly) | -5 °C ... 100 °C | Type of packaging | packed in cardboard |
Specifications may be subject to change without notice