3VJ9428-0UV16 | Siemens Sinova 3VJ9 Under Voltage Release (Left) 220 V DC Suitable For 3VJ23/24, FS400/630 A MCCB – Siemens

Name: 3VJ9428-0UV16 | Siemens Sinova 3VJ9 Under Voltage Release (Left) 220 V DC Suitable For 3VJ23/24, FS400/630 A MCCB - Siemens - myelectric.in
Brand: Siemens
SKU: 3VJ9428-0UV16

SKU: 3VJ9428-0UV16

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📋 Technical Specifications

Parameter	Value
Brand	Siemens
Part Number / SKU	3VJ9428-0UV16
Category	MCCB
Voltage Rating	220V AC
Standard	IEC 60947-2 / IS 13947-2
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

Thermal-magnetic trip unit — factory-calibrated overload and short-circuit protection; suitable for standard feeder circuits without electronic adjustment.
Manufactured to IEC 60947-2 / IS 13947-2 — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified, CE, cULus (select models) — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised Siemens product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.

❓ Frequently Asked Questions

Q: Is the 3VJ9428-0UV16 suitable for use as a motor branch circuit protector (Type E coordination)?

A: MCCBs used for motor branch circuit protection must be coordinated with the downstream overload relay for Type 2 coordination (no damage to contactor or relay on short-circuit). Verify the Siemens coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.

Q: Can the 3VJ9428-0UV16 be motorised for remote switching and automation?

A: Yes. Siemens MCCBs in this series support rotary handle adaptation and motorised operating mechanisms as accessories, enabling remote ON/OFF switching via PLC, SCADA, or BMS. Motorised MCCBs are used for automatic load management and remote trip in automated distribution systems.

Q: What trip unit type does the 3VJ9428-0UV16 use — thermal-magnetic or electronic?

A: Refer to the product label or datasheet for the exact trip unit specification. The trip unit determines adjustability and protection accuracy.

Q: What is the difference between an MCCB and a standard MCB — and why use the 3VJ9428-0UV16?

A: A standard MCB protects against overload and short-circuit only. An MCCB handles much higher fault levels and larger current ratings — MCCBs are rated up to 1600A with 25–200kA breaking capacity, compared to MCBs which are capped at typically 125A and 10kA. Choose the 3VJ9428-0UV16 when the application specifically requires mccb characteristics.