Siemens 6NH9720-3AA00 SINAUT MD720-3 GSM Modem
Upgrade your industrial telecontrol systems with the Siemens 6NH9720-3AA00 SINAUT MD720-3 GSM Modem. This rugged, ATEX-certified wireless modem features an RS232 interface, 12-30V DC operation, and operates flawlessly in harsh environments (-20°C to 60°C). Ideal for SIMATIC NET remote monitoring and secure data transmission.
Siemens 6NH9720-3AA00 SINAUT MD720-3 GSM Modem
The Siemens 6NH9720-3AA00 SINAUT MD720-3 is a highly reliable industrial GSM modem designed for seamless integration with SIMATIC NET and SINAUT telecontrol systems. Engineered for demanding industrial environments, this modem enables secure wireless data transmission for remote monitoring, control, and diagnostics. It comes equipped with a standard RS232 serial interface (DB9), an SMA connector for an external antenna, and a dedicated SIM card slot. Operating on a 12-30V DC power supply, it features a rugged design capable of functioning in extreme temperatures ranging from -20°C to 60°C. With comprehensive safety certifications including FCC, UL (Class I, Div 2), and ATEX (Zone 2), the MD720-3 ensures safe and dependable performance even in hazardous locations.
Technical Specifications:
- Manufacturer/Brand: Siemens
- Model Number: 6NH9720-3AA00 (SINAUT MD720-3)
- Interfaces: 1 x RS232 (DB9 connector), 1 x SMA antenna connector, 1 x SIM card slot
- Operating Voltage: 12-30V DC
- Current Consumption: 430-140mA (nominal), 1.3A (burst)
- Operating Temperature: -20°C to 60°C
- Hardware/Firmware Version: HW 3.4 / FW 1.7
- Certifications: FCC (LYHMD720-3), IC (267AA-MD720), UL (CL I, DIV2, GP A,B,C,D T4), ATEX (II 3 G EEx nA II T4), CE

| Brand | Siemens |
|---|---|
| Model | 6NH9720-3AA00 |
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.zxanhyd.com. Following are the terms and conditions for the Shipping Policy for ZXAN Hydraulic.
Orders will be processed and shipping during standard working hours (0830 – 1730 BST) Monday to Friday (excluding Bank Holidays)., are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
NTERNATIONAL DELIVERY RATES & ESTIMATES
Shipping charges for your order will depend on weight and country the order is to be shipped to. All cost will be calculated and displayed at checkout. All orders for delivery within the Asia will arrive on a 2-5 day delivery service depending on Country location. All shipments outside the Asia will arrive on a 3–7-day delivery service depending on Country location. Please check for accurate delivery times with our Sales department. If you Parcel has not arrived within the time expected please do not hesitate to contact us. Please ensure the ship to address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
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WORKING CLOSELY WITH TOP CARRIER EXPERTS
We use some of the top carrier companies in the world, although you can use your own carrier to collect the order. All deliveries require a signature on delivery. Below are our main carrier companies.

DAMAGES
ZXAN Hydraulic is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.

