Description

Siemens 3VL9440-7DC30 Network Communication Module Automation Spare Part

Electrical engineers and facility managers depend on the Siemens 3VL9440-7DC30 to facilitate automated or emergency shutdowns without manual intervention—whether triggered by a SCADA system, overload detector, or emergency stop signal. Its compact design and plug-and-play compatibility with 3VL MCCBs eliminate the need for custom adapters, simplifying retrofits and new system installations alike. By enabling remote tripping, the Siemens 3VL9440-7DC30 minimizes downtime during fault conditions and reduces the risk of electrical hazards for on-site personnel.

Label	Specification
Model Number	3VL9440-7DC30
Brand	Siemens
Type	Shunt Release for 3VL Molded Case Circuit Breakers
Rated Voltage	220-240V AC/DC
Operating Voltage Range	70-110% of rated voltage
Compatible MCCB Sizes	3VL160, 3VL250, 3VL400, 3VL630
Mounting	Direct mechanical attachment to 3VL MCCB front face
Weight	0.12 kg
Certifications	CE, UL 1077, IEC 60947-2
Dimensions	45 x 28 x 62 mm
IP Rating	IP20 (when installed on MCCB)
Response Time	≤ 100 ms
Connection Type	Screw terminals (2.5-4 mm² wire gauge)
Operating Temp	-25°C ~ 70°C

The Siemens 3VL9440-7DC30 has been built to withstand the harsh conditions of industrial electrical enclosures, with a rugged plastic housing that resists mechanical impact and chemical exposure from common industrial contaminants. Its wide operating voltage range (70-110% of rated) ensures reliable performance even during voltage fluctuations—a common challenge in manufacturing environments. Unlike generic shunt releases, it’s precision-engineered to match the tripping mechanics of 3VL MCCBs, eliminating compatibility issues that can lead to failed shutdowns or damage to equipment.

3VL9440-7DC20 – A lower-voltage variant (110-127V AC/DC) for regions with different electrical grids​

3VL9440-7DC40 – A higher-voltage model (380-415V AC) for heavy-duty industrial applications​

3VL9400-1AA00 – Auxiliary switch accessory that adds status monitoring to 3VL MCCBs with the Siemens 3VL9440-7DC30​

3VL9450-7DC30 – Undervoltage release for 3VL MCCBs, often paired with the shunt release for comprehensive protection​

3VL9460-7DC30 – Shunt release with manual reset, ideal for applications requiring intentional lockout​

3VL160N160 – 3VL MCCB (160A) commonly used with the Siemens 3VL9440-7DC30 in medium-power systems​

3VL630N630 – High-current 3VL MCCB (630A) compatible with this shunt release for heavy industrial loads​

3VL9200-0AA00 – Mounting adapter for retrofitting the Siemens 3VL9440-7DC30 on older 3VL MCCB revisions