| 337/387 | 6 / 12 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 1.842 | 46.79 | 1.532 | 38.91 | 1.246 | 31.65 | 1.100 | 27.94 | 0.780 | 19.81 |
| 337/387 | 10 / 20 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 2.466 | 62.64 | 2.156 | 54.76 | 1.870 | 47.50 | 1.724 | 43.79 | 1.404 | 35.66 |
| 337/387 | 12 / 24 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 2.778 | 70.56 | 2.468 | 62.69 | 2.182 | 55.42 | 2.036 | 51.71 | 1.716 | 43.59 |
| 337/387 | 15 / 30 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 3.246 | 82.45 | 2.936 | 74.57 | 2.650 | 67.31 | 2.504 | 63.60 | 2.184 | 55.47 |
| 337/387 | 18 / 36 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 3.714 | 94.34 | 3.404 | 86.46 | 3.118 | 79.20 | 2.972 | 75.49 | 2.652 | 67.36 |
| 337/387 | 22 / 44 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 4.338 | 110.19 | 4.028 | 102.31 | 3.742 | 95.05 | 3.596 | 91.34 | 3.276 | 83.21 |
| 337/387 | 25 / 50 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 4.806 | 122.07 | 4.496 | 114.20 | 4.210 | 106.93 | 4.064 | 103.23 | 3.744 | 95.10 |
| 337/387 | 26 / 52 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 4.962 | 126.03 | 4.652 | 118.16 | 4.366 | 110.90 | 4.220 | 107.19 | 3.900 | 99.06 |
| 337/387 | 28 / 56 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 5.278 | 134.06 | 4.964 | 126.09 | 4.678 | 118.82 | 4.532 | 115.11 | 4.212 | 106.98 |
| 337/387 | 31 / 62 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 5.742 | 145.85 | 5.432 | 137.97 | 5.146 | 130.71 | 5.000 | 127.00 | 4.680 | 118.87 |
| 337/387 | 33 / 66 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 6.054 | 153.77 | 5.744 | 145.90 | 5.458 | 138.63 | 5.312 | 134.92 | 4.992 | 126.80 |
| 337/387 | 36 / 72 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 6.522 | 165.66 | 6.212 | 157.78 | 5.926 | 150.52 | 5.780 | 146.81 | 5.460 | 138.68 |
| 337/387 | 43 / 86 | Single / Dual | Single Row / Dual Row | Flush Mounting Lugs / Offset Lugs | Various | Various | Various | Various | 3 amps | 10 milliohms maximum | 1800 V AC rms at sea level between adjacent contacts | 5000 megaohms minimum | -40C to +105C | 16 oz (4.45 N) maximum per contact pair | 1 oz (0.28 N) minimum per contact pair | 7.614 | 193.40 | 7.304 | 185.52 | 7.018 | 178.26 | 6.872 | 174.55 | 6.552 | 166.42 |