The Siemens SIMATIC S5 Front Connector (model 6ES5490-7LB11) is a critical interface component designed for the SIMATIC S5 family of programmable logic controllers. This 20-pin connector provides a standardized, pluggable connection between field wiring and S5 I/O modules, such as those in the S5-115U, S5-135U, and S5-155U systems. Its screw-type terminal design ensures secure, maintenance-friendly wiring, while the integrated strain relief protects cables from mechanical stress. The 6ES5490-7LB11 is engineered to withstand industrial vibration and temperature extremes, making it ideal for retrofitting or expanding legacy automation lines. Each unit is 100% Original and New, sourced directly from Siemens-authorized channels, and available for rapid global dispatch.
| Parameter |
Specification |
| Model Number |
6ES5490-7LB11 |
| Product Type |
SIMATIC S5 Front Connector |
| Number of Pins |
20 (screw-type terminals) |
| Connection Type |
Plug-in, with screw termination |
| Rated Voltage |
250 V AC / 125 V DC |
| Rated Current |
2 A per pin (max) |
| Wire Cross-Section |
0.14 mm² to 1.5 mm² (AWG 26–16) |
| Stripping Length |
7 mm (0.28 in) |
| Operating Temperature |
-25°C to +60°C (-13°F to +140°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Relative Humidity |
Up to 95% (non-condensing) |
| Vibration Resistance |
10–58 Hz, 0.075 mm amplitude; 58–150 Hz, 1 g |
| Shock Resistance |
15 g, 11 ms half-sine pulse |
| Protection Class |
IP20 (when installed) |
| Material |
Polyamide (PA) housing, tin-plated copper alloy contacts |
| Weight |
Approx. 45 g (1.6 oz) |
| Compatible Systems |
Siemens SIMATIC S5-115U, S5-135U, S5-155U |
| Standards |
IEC 61131-2, UL 508, CSA C22.2 No. 142 |
| Packaging |
Single unit, anti-static bag |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22