RK Series
Compact
Single stage
Chassis mount
Significant differential mode performance
Suitable for industrial machinery
Low input leakage
Ordering Information

Available Part Numbers
Click on any part number for 3D CAD models, customer drawings, distributor stock status and eCommerce Links.
3ERK1 | 6ERK1 |
10ERK1 | 15ERK1 |
20ERK1 | |
Specifications
Maximum leakage current, each Line to Ground: |
| @ 120 VAC 60 Hz | 0.16mA |
| @ 250 VAC 50 Hz | 0.26mA |
|
Hipot rating (one minute): |
| Line to Ground | 2250 VDC |
| Line to Line | 1450 VDC |
| | |
Operating Frequency: | 50 / 60 Hz |
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Rated voltage (max.): | 250 VAC |
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Rated Current: | 3A to 20A |
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Operating Ambient Temperature Range (at rated current Ir): |
| | -10°C to +40°C |
In an ambient temperature (Ta) higher than +40°C the maximum operating current (Io) is calculated as follows: Io = Ir √(85-Ta)/45 |
Electrical Schematic

Case Styles
RK1 (3 & 6A)
Typical Dimensions: |
| Line/Load Terminals(4): | .250 [6.3] with .07 [1.8] Dia. hole |
| Ground Terminal(1): | .250 [6.3] with .07 x .16 [1.8 x 3.8] slot |
| Mounting Holes (2): | .188 [4.75] Dia. |
RK1 (10, 15 & 20A)
Typical Dimensions: |
| Line/Load Terminals(4): | .250 [6.3] with .07 [1.8] Dia. hole |
| Ground Terminal(1): | .250 [6.3] with .07 x .16 [1.8 x 3.8] slot |
| Mounting Holes (2): | .188 [4.75] Dia. |
Case Dimensions
Part No. | A | B | C | D | E |
(max.) | (max.) | (max.) | ± .015 ‡ | (max.) |
± .38 |
3ERK1 | 3.35 | 1.82 | 1.16 | 2.38 | 2.78 |
85.09 | 46.26 | 29.46 | 74.68 | 70.61 |
6ERK1 | 3.35 | 1.82 | 1.28 | 2.38 | 2.78 |
85.09 | 46.23 | 32.51 | 74.68 | 70.61 |
10ERK1 15ERK1 20ERK1 | 3.85 | 2.07 | 1.78 | 2.94 | 3.35 |
97.79 | 52.58 | 45.21 | 74.67 | 85.09 |
Minimum Insertion Loss in dB: |
Measured in closed 50 ohm system |
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Common Mode / Asymmetrical (Line to Ground) | | Differential Mode / Symmetrical (Line to Line) |
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Current Rating | Frequency - MHz | .05 | .10 | .15 | .5 | 1 | 2 | 5 | 10 | 20 | 30 |
| 3A | 21 | 27 | 30 | 43 | 49 | 50 | 50 | 48 | 50 | 49 | 6A | 19 | 25 | 29 | 37 | 43 | 44 | 48 | 46 | 50 | 48 | 10A | 20 | 27 | 31 | 45 | 45 | 44 | 46 | 47 | 53 | 44 | 15A | 21 | 28 | 31 | 45 | 43 | 41 | 42 | 42 | 47 | 57 | 20A | 19 | 25 | 29 | 34 | 36 | 38 | 40 | 41 | 43 | 52 |
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| | Current Rating | Frequency - MHz | .05 | .10 | .15 | .50 | 1 | 2 | 5 | 10 | 20 | 30 |
| 3A | 9 | 20 | 35 | 67 | 78 | 78 | 72 | 66 | 61 | 60 | 6A | 14 | 14 | 13 | 59 | 74 | 80 | 72 | 68 | 61 | 60 | 10A | 14 | 12 | 30 | 65 | 80 | 84 | 78 | 70 | 60 | 50 | 15A | 15 | 13 | 20 | 61 | 76 | 88 | 70 | 72 | 64 | 50 | 20A | 16 | 19 | 16 | 54 | 74 | 90 | 74 | 67 | 61 | 54 |
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