* Pictures are placed for illustration purpose only. Appearance of real component may differ.
Dust- and splash-proof connectors for DC and AC (up to 3 MHz) circuits with voltages up to 850 V. Connectors consist of a plug and a socket, which can be either panel-side or cable-side. Panel-side of the connector can be without shell, with straight or angular shell. Cable-side – with straight or angular shell. Connectors are suitable for shielded or unshielded cables. Plugs and sockets are secured with a screw joint, connector is polarized with one key.
Annotation breakdown
Annotation example: 2RTT20B(K)P(U)E(N)4Sh(G)6OV
2RT – connector type
T - suitable for usage tropical climate
20 – design number
B( or K) – case design: B- unit-side, K – cable-side
P( or U) – shell type: P – straight, U – angular
E(or N) – type of shell end nut: E – for shielded cable, N – for unshielded cable
Sh(or G) – connector type: Sh – plug, G – socket
6 – contacts layout
O – shell without rubber housing, collar and washer; no symbol – shell with rubber housing, collar and washer
V – all-climate version
Operational limits
| Sinusoidal vibration frequency acceleration |
1-5000 Hz 300 m/s2 (30 g) |
| Multiple mechanical impact impact acceleration linear acceleration |
10000 m/s2 (1000 g) 1500 m/s2 (150 g) |
| Ambient air temperature | -60..+100 oC |
| Diminished air pressure | 1.3·10-4 Pa (10-8 mmHg) |
Technical parameters
| Contact diameter, mm | 1.5 | 2.5 | 3.5 | 5.5 | 9.0 |
| Contact resistance, not more than, mOhm | 2.5 | 1.0 | 0.75 | 0.3 | 0.15 |
| Insulation resistance in normal conditions | 5000 MOhm |
| Current | depends on design number |
| Number of connection-disconnection cycles | 500 |
| Lifetime | 1000 h |
| Shelf life | 15 years |
Minimum lifetime depending on connector temperature
| Minimum lifetime, h | Connector temperature, oC |
| 500 | 180 |
| 1000 | 150 |
| 3000 | 125 |
| 5000 | 116 |
| 7500 | 110 |
| 10000 | 1104 |
| 15000 | 98 |
| 20000 | 93 |
| 25000 | 90 |
| 30000 | 87 |
| 40000 | 83 |
| 50000 | 80 |
| 80000 | 73 |
| 100000 | 70 |
| 130000 | 67 |
Note: connector temperature equals ambient air temperature plus contact overheat temperature
Contact overheat temperature depending on ampere load
| Connector ampere load, % of allowed | Contact overheat temperature, oC |
| 100 | 50 |
| 85 | 40 |
| 75 | 30 |
| 60 | 25 |
| 50 | 20 |
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