The 6ES5490-8MB21 is a high-quality screw connector module from the Siemens SIMATIC S5 family, specifically engineered for demanding industrial automation environments. This connector serves as the termination interface for analog and digital I/O modules within S5-115U, S5-135U, and S5-155U systems, providing a secure, vibration-resistant connection for field wiring. Its robust construction ensures long-term reliability in harsh conditions, including high humidity, temperature fluctuations, and electrical noise. Each connector is factory-tested and shipped as a new, original Siemens component, ready for immediate installation.
| Parameter |
Specification |
| Part Number |
6ES5490-8MB21 |
| Product Type |
Screw Connector for SIMATIC S5 I/O Modules |
| Number of Contacts |
20 (2 rows of 10) |
| Rated Voltage |
24V DC (AC models: 230V AC max) |
| Rated Current |
2 A per contact (total 16 A per connector) |
| Wire Cross-Section |
0.5 mm² to 2.5 mm² (AWG 20 to 14) |
| Stripping Length |
8 mm (0.315 inches) |
| Torque for Screw Terminal |
0.5 Nm (4.4 lb-in) |
| Housing Material |
Flame-retardant thermoplastic, UL 94 V-0 |
| Protection Class |
IP20 (finger-safe) |
| 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 |
5% to 95% (non-condensing) |
| Vibration Resistance |
10 Hz to 150 Hz, 1 g (per IEC 60068-2-6) |
| Shock Resistance |
15 g, 11 ms half-sine (per IEC 60068-2-27) |
| Dielectric Strength |
500 V AC for 1 minute between contacts |
| Standards Compliance |
IEC 60947-1, UL 508, CSA C22.2 No. 14 |
| Weight |
Approx. 35 g (1.23 oz) |
| Shipping Dimensions |
80 mm x 60 mm x 30 mm (3.15" x 2.36" x 1.18") |
| Compatible Modules |
S5-115U (e.g., 6ES5 430-8MA11), S5-135U (e.g., 6ES5 470-8MA12), S5-155U (e.g., 6ES5 450-8MA11) |
| Warranty |
12 months from date of shipment |
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