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Part Number
Configured Part Number is shown.
E-MSMD4CF-K2
| Lock Dimensions | Key Dimensions |
| E-MSMD4□F | T type E-MSMD2-K1 |
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| L type E-MSMD2-K2 | |
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When installing the operating key, make sure it is within 1 mm of the center of the operating keyhole. If the operating key is offset from this position or inserted at an angle, it may cause accelerated wear or breakage.
Note: Please follow the specified insertion radius for the operating key and insert it vertically into the keyhole.

| Key installation type | E-MSMD2-K1 | E-MSMD2-K2 |
| A operation key mounting surface | 44-46.5 mm | 40-42.5 mm |
| B operation key mounting surface | 54.5-57 mm | 50.5-53 mm |
| Horizontal direction radius R | ≥ 200 mm | ≥ 200 mm |
| Vertical radius R | ≥ 200 mm | ≥ 200 mm |
· Please use M4 screws and spring washers to install the switch and operating key, and tighten them with the appropriate torque.
· For safety, please use screws that cannot be easily removed or take similar measures to prevent the switch and operating key from being easily removed.
· As shown below, you can use two bolts with a height of 4.8 mm or less and a diameter of 4 mm, inserted into the holes at the bottom of the switch, to enable four-point mounting for a more secure installation.

| Protection Rating | IP67 | |
| Material | PA66 flame retardant | |
| Mechanical life | Over 1,000,000 cycles | |
| Electrical life | Over 150,000 cycles | |
| Type of use | AC-15 | DC-13 |
| Rated operational voltage (Ue) | 240V | 24V |
| Rated operational current (Ie) | 3A | 2A |
| Operating characteristics | ||
| Positive opening force | 60N | |
| Minimum positive opening travel | 10 mm or more | |
| Operating speed | 0.1 m to 0.5 m/s | |
| Permissible operating frequency | Maximum 20 operations/minute | |
| Environment | ||
| Operating ambient temperature | -10°C to +60°C (no freezing) | |
| Operating ambient humidity | 85% RH or less | |
| Electrical | ||
| Contact resistance | 200 mΩ or less | |
| Rated insulation voltage (Ui) | 300V | |
| Electric shock protection class | Class II (double insulation) | |
| Impulse withstand voltage (EN60947-5-1) | 2.5 kV | |
| Insulation resistance | Above 100MΩ (at 500 V DC or below) | |
| Short-circuit protection device | Requires a quick-blow fuse, 10 A, 250 V | |
| Vibration resistance | 10-55Hz, double amplitude 1.5 mm | |
| Shock resistance | Durability 1000 m/s2 | |
| Conditional short-circuit current | 100 A (EN60947-5-1) | |
| Contact gap | 2 x 2 mm or more | |

It is recommended to use wire sizes of 0.5 to 1.5 mm². Please refer to the above diagram for wire length. The waterproof connector ensures IP67 protection level, and shielding tape can be wrapped around the threaded part.
When using crimp terminals, the total length of the terminal should be within 19 mm, and the thickness should be less than 0.5 mm.
The illustration shows the state when the operation key is inserted.
| Door Lock Model | Contact Type | Contact Form | Operation Mode |
| E-MSMD4CF | 2NC/1NO | ![]() | ![]() |
| E-MSMD4DF | 3NC | ![]() | ![]() |
| Model | Contact Type | Locking Method | Conduit Port Size | Head Material | Rated Operating Voltage/Current |
| E-MSMD4CF | 2NC/1NO | Mechanical locking | M20 | PA66 | 24 V/2 A |
| E-MSMD4DF | 3NC |

| Combination models including operation key | Door Lock Model | Operating key model | Contact Type | Key material | Operating key insertion force (Max) | Operating key withdrawal force (Max) | Total travel - TT | Pre-travel - PT |
| E-MSMD4CF-K1 | E-MSMD4CF | E-MSMD2-K1 (T type) | 2NC/1NO | SUS201 | 15N | 50N | 28 mm | 6±3 mm |
| E-MSMD4DF-K1 | E-MSMD4DF | 3NC | ||||||
| E-MSMD4CF-K2 | E-MSMD4CF | E-MSMD2-K2 (L type) | 2NC/1NO | |||||
| E-MSMD4DF-K2 | E-MSMD4DF | 3NC |
· When loosening screws using an electric screwdriver or similar tool by pressing the screw head, do not over-loosen the screw to the point where the threads disengage.
· Otherwise, the end of the threads may be damaged.
· Do not use the switch as a stopper. To ensure that the base of the operating key does not touch the switch head, be sure to install the limit stopper as shown below, and adjust the stopper so that the operating key stays within the set area of the base (1–3.5 mm).
· Do not subject the switch to impacts exceeding its shock resistance value (1000 m/s²).



CAD Data download and 3D preview are not available because the part number has not yet been determined.
| Part Number |
|---|
| E-MSMD4CF-K2 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Acquired Standards | Contact Type | Operating Key | Usage Method | Operating Key Material |
|---|---|---|---|---|---|---|---|---|---|
MYR 71.22 | 1 Piece(s) | Available | 6 Day(s) | - | 2NC/1NO | E-MSMD2-K2 (vertical installation) | Mechanical door lock, operating key kit | SUS201 |
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| Rated Operating Voltage(V) | 24 | Rated operating current(A) | 2 | Safety Door Lock Conduit Port Size | M20 |
|---|---|---|---|---|---|
| Safety Door Lock Head Material | PA66 | Locking Method | Mechanical locking | Safety Door Lock Body Material | PA66 |
| Safety Door Lock Locking Force | 50N |
Please check the type/dimensions/specifications of the part E-MSMD4CF-K2 in the Safety Door Switches series.
| Part Number |
|---|
| E-MSMD4CF |
| E-MSMD4CF-K1 |
| E-MSMD4DF |
| E-MSMD4DF-K1 |
| E-MSMD4DF-K2 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Acquired Standards | Contact Type | Operating Key | Usage Method | Operating Key Material |
|---|---|---|---|---|---|---|---|---|---|
MYR 63.36 | 1 Piece(s) | Available | 6 Day(s) | CE | 2NC/1NO | - | Product does not include operating key | - | |
MYR 71.22 | 1 Piece(s) | Available | 6 Day(s) | - | 2NC/1NO | E-MSMD2-K1 (horizontal installation) | Mechanical door lock, operating key kit | SUS201 | |
MYR 63.38 | 1 Piece(s) | Available | 6 Day(s) | CE | 3NC | - | Product does not include operating key | - | |
MYR 71.22 | 1 Piece(s) | Available | 6 Day(s) | - | 3NC | E-MSMD2-K1 (horizontal installation) | Mechanical door lock, operating key kit | SUS201 | |
MYR 70.64 | 1 Piece(s) | Available | 6 Day(s) | - | 3NC | E-MSMD2-K2 (vertical installation) | Mechanical door lock, operating key kit | SUS201 |
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