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When attached to a panel-mount receptacles, inline adapters, and plugs, this drip-proof cap prevents dust and contaminant from entering the mating part when the connector is not connected, and prevent accidental contact by the connector with current-carrying parts when not connected.


Japanese Only
Part Number
Configured Part Number is shown.
CE1RC-28RA

| Model | Compatible Shell Size | Size (mm) | Weight (g) | |||
| ØA | ØB | ØC | L | |||
| CE1RC-18RA | 18 | 37.5 | 33.1 | 3.2 | 80 | 10.2 |
| CE1RC-20RA | 20 | 42.6 | 38.2 | 3.2 | 100 | 15.6 |
| CE1RC-22RA | 22 | 43.8 | 39.4 | 3.2 | 110 | 12.3 |
| CE1RC-24RA | 24 | 47.0 | 42.6 | 4.3 | 130 | 14.0 |
| CE1RC-28RA | 28 | 53.3 | 49.0 | 4.3 | 150 | 21.3 |
| CE01PC-18RA | 18 | 44.05 | 41.95 | - | - | 20 |
| CE01PC-20RA | 20 | 49.2 | 47.1 | - | - | 24 |
| CE01PC-22RA | 22 | 50.4 | 48.3 | - | - | 25 |
| CE01PC-24RA | 24 | 53.6 | 51.5 | - | - | 27 |
| CE01PC-28RA | 28 | 59.9 | 57.8 | - | - | 32 |

| Item | Panel Mounting / Relay | For Plug | ||
| Materials | Finish | Materials | Finish | |
| Body | EP Rubber | Black | EP Rubber | Black |
| String | Tetron | Black | — | — |
| Sleeve | Copper Alloy | Tin Plated | — | — |
| Crimp Terminal | Copper Alloy | Tin Plated | — | — |
| Part Number |
|---|
| CE1RC-28RA |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Conforming shell size |
|---|---|---|---|---|---|
MYR 79.30 | 1 Piece(s) | Available | 4 Day(s) or more | 28 |
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Protection Circuit Connection Structural Diagram

About Compatible Products
NB01 connectors, CE01 connectors, and JL05 connectors are compatible with each other.Combination Method


Material / Finish
| Item | Materials | Finish |
|---|---|---|
| Shell (Body) | Aluminum Alloy | Black Chromate Treatment |
| Insulator | Polyester Resin | UL94V-0, Gray |
| Contact | Copper Alloy | Silver Plating |
| O-ring | Nitrile Rubber | Black |
| Coupling Nut | Aluminum Alloy | Black Chromate Treatment |
| Earth Lug | Steel Alloy | Silver Plating |
| Rear Gasket for Flange | Chloroprene Rubber | Black |
Electrical and Mechanical Properties, Compatible Wires
| Item | Characteristics | |||||||
|---|---|---|---|---|---|---|---|---|
| Rated Current | Contact Size | #20 | #16 | #12 | #8 | |||
| Maximum Value per 1 Piece | 5 A | 13 A | 23 A | 46 A | ||||
| Rated Voltage | Rating Classification | AC (r.m.s) | DC | |||||
| INST | 200 | 250 | ||||||
| A | 500 | 700 | ||||||
| D | 900 | 1,250 | ||||||
| Withstand Voltage | INST | 1,000 VAC (r.m.s) 1 minute | ||||||
| A | 2,000 VAC (r.m.s) 1 minute | |||||||
| D | 2,800 VAC (r.m.s) 1 minute | |||||||
| Insulation Resistance | 5,000 MΩ or more at 500 VDC | |||||||
| Contact Resistance | Contact Size | #20 | #16 | #12 | #8 | |||
| mΩ or less | 8 | 4 | 2 | 0.6 | ||||
| Operating Temperature Range | -55°C ~ +125°C | |||||||
| Waterproofing | IP67 Equivalent | |||||||
| Humidity | Relative Humidity 95% or less | |||||||
| Service Life | 500 Insertions and Removals | |||||||
| NB01 (Solder Type) Compatible Wires (Note 2) |
Contact Size | #16 | #12 | #8 | ||||
| Conductor Cross-sectional Area | 0.75 mm2 or less | 3.5 mm2 or less | 8 mm2 or less | |||||
| AWG Size | 18 or less | 12 or less | 8 or less | |||||
Contact Arrangement Diagram
| Number of Contacts | 4 | 5 | 7 | 7 | 8 |
|---|---|---|---|---|---|
| Arrangement No. | 22-22 | 18-11 | 20-15 | 24-10 | 22-23 |
| Contact Size | #8 | #12 | #12 | #8 | #12 |
| Contact Arrangement (Note 1) (Note 2) |
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| Rating Classification | A | A | A | A | D (4), A (Others) |
| Number of Contacts | 10 | 17 | 19 | 19 | 24 |
|---|---|---|---|---|---|
| Arrangement No. | 18-1 | 20-29 | 18-19A | 22-14 | 24-28 |
| Contact Size | #16 | #16 | #20 | #16 | #16 |
| Contact Arrangement (Note 1) (Note 2) |
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| Rating Classification | A (3, 5, 6, 8), INST (Others) |
A | INST | A | INST |
| Number of Contacts | 30 | 37 | 52 | 73 |
| Arrangement No. | 20-30A | 28-21 | 24-52A | 28-73A |
| Contact Size | #20 | #16 | #20 | #20 |
| Contact Arrangement (Note 1) (Note 2) |
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| Rating Classification | INST | A | INST | INST |
|---|
Panel Cut Size Drawing

| Compatible Shell Size |
φA ±0.5 |
φB +0.2 -0 |
C ±0.13 |
Mounting Screws (Reference) | Rear Mounting Panel Thickness Limit |
|
|---|---|---|---|---|---|---|
| Inch Screws | Metric Screws | |||||
| 18 | 30.2 | 3.3 | 26.97 | #4-40 | M3 | 3.0 or less |
| 20 | 34.9 | 3.3 | 29.36 | #4-40 | M3 | |
| 22 | 36.6 | 3.3 | 31.75 | #4-40 | M3 | |
| 24 | 39.7 | 4.3 | 34.92 | #6-32 | M4 | |
| 28 | 46.1 | 4.3 | 39.67 | #6-32 | M4 | |
Please check the type/dimensions/specifications of the part CE1RC-28RA in the CE01 Drip-Proof Cap (for Receptacle/Adapter) series.
| Part Number |
|---|
| CE1RC-22RA |
| CE1RC-24RA |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Conforming shell size |
|---|---|---|---|---|---|
MYR 75.57 | 1 Piece(s) | Available | 4 Day(s) or more | 22 | |
MYR 77.29 | 1 Piece(s) | Available | 4 Day(s) or more | 24 |


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