Series 300 – With Flush Plate
Features | Part Numbers | Dimensions
Features
Solder lug terminals with .093″ x .062″ (2.36mm x 1.57mm) wiring holes.
- Two-contact “Jones” connector is round, all others are rectangular.
- For use in cable-to-panel and cable-to-cable applications.
- Designed for light and medium duty.
- Plug prongs are .156″ (3.96mm) wide and .047″ (1.19mm) thick.
- Polarized to prevent wrong-way insertion.
- Plugs have projecting flat blades, sockets have recessed twin bellows.
- Cable clamps of zinc and clear irridite-plated steel used for strain relief.
- UL Recognized-file E170218 (UL 1977), E130965 (UL1863).
- CSA-LR31996.
Materials
- Insulation Material: Molded monoblock, general purpose phenolic, black UL94V-1
- Contact Material: Plug: Brass – Socket: Phosphor bronze
- Contact Plating: Cadmium
- Operating Temperature: Up to +105°C
- Hood Material: UL 94V-0 rated thermoplastic
Mechanical
- Operating Voltage: 250 VAC RMS maximum
- Current Rating: 10 Amps
- Contact Resistance: 16 Milliohms maximum
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Part Numbers
Click on any part number to see it’s current stock with our distributors.
NOTE: Not available in contact sizes 15-33.
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Dimensions

| No. of Contacts |
A |
B |
C |
D |
E Max. |
| in |
mm |
in |
mm |
in |
mm |
in |
mm |
in |
mm |
| 2 |
2.063 |
52.40 |
1.250 |
31.75 |
1.750 |
44.45 |
- |
- |
.719 |
18.26 |
| 3 |
2.063 |
52.40 |
1.250 |
31.75 |
1.750 |
44.45 |
.938 |
23.81 |
.500 |
12.70 |
| 4 |
2.063 |
52.40 |
1.250 |
31.75 |
1.750 |
44.45 |
.688 |
17.46 |
.750 |
19.05 |
| 6 |
2.063 |
52.40 |
1.250 |
31.75 |
1.750 |
44.45 |
.938 |
23.81 |
.750 |
19.05 |
| 8 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
| 10 |
2.563 |
65.10 |
1.750 |
44.45 |
2.250 |
57.15 |
1.500 |
38.10 |
.750 |
19.05 |
| 12 |
2.563 |
65.10 |
1.750 |
44.45 |
2.250 |
57.15 |
1.188 |
30.16 |
1.000 |
25.40 |
Panel Cut out Dimensions
| |
A |
B |
C |
| Reference |
in |
mm |
in |
mm |
in |
mm |
| 303-FP |
.953 |
24.21 |
.516 |
13.11 |
1.750 |
44.45 |
| 304-FP |
.703 |
17.86 |
.766 |
19.46 |
1.750 |
44.45 |
| 306-FP |
.953 |
24.21 |
.766 |
19.46 |
1.750 |
44.45 |
| 308-FP |
– |
– |
– |
– |
– |
– |
| 310-FP |
1.516 |
38.51 |
.766 |
19.46 |
2.250 |
57.15 |
| 312-FP |
1.203 |
30.56 |
1.016 |
25.81 |
2.250 |
57.15 |
Mounting Dimensions

| Reference |
A |
B |
C |
D |
| in |
mm |
in |
mm |
in |
mm |
in |
mm |
| 303 |
.453 |
11.51 |
1.016 |
25.81 |
.750 |
19.05 |
- |
- |
| 304 |
.719 |
18.26 |
.781 |
19.84 |
1.000 |
25.40 |
- |
- |
| 306 |
.719 |
18.26 |
1.031 |
26.19 |
1.000 |
25.40 |
- |
- |
| 308 |
.719 |
18.26 |
1.281 |
32.54 |
1.000 |
25.40 |
- |
- |
| 310 |
.719 |
18.26 |
1.578 |
40.08 |
1.000 |
25.40 |
- |
- |
| 312 |
.953 |
24.21 |
1.266 |
32.16 |
1.250 |
31.75 |
- |
- |
| 315-12 |
.953 |
24.21 |
1.516 |
38.51 |
1.250 |
31.75 |
- |
- |
| 315 |
1.016 |
25.81 |
1.641 |
41.68 |
1.375 |
34.93 |
- |
- |
| 318 |
1.016 |
25.81 |
1.953 |
49.61 |
1.375 |
34.93 |
.625 |
15.88 |
| 321 |
1.016 |
25.81 |
2.266 |
57.56 |
1.375 |
34.93 |
.469 |
11.91 |
| 324 |
1.016 |
25.81 |
2.578 |
65.48 |
1.375 |
34.93 |
.625 |
15.88 |
| 327 |
1.016 |
25.81 |
2.891 |
73.43 |
1.375 |
34.93 |
.781 |
19.84 |
| 330 |
1.016 |
25.81 |
3.203 |
81.36 |
1.375 |
34.93 |
.938 |
23.83 |
| 333 |
1.016 |
25.81 |
3.516 |
89.31 |
1.375 |
34.93 |
1.094 |
27.79 |
NOTE: For 300 Series 2 through 33 contact angle bracket connectors. All mounting holes are .156″ (3.96mm) dia. Maximum chassis thickness is .063″ (1.59mm) for bottom mounting. Mounting holes are located on center line unless otherwise shown.
Polarizing Patterns
![jones-300-pin-layout11[1]](http://www.cinch.com/wp-content/uploads/jones-300-pin-layout1111.gif)