Siemens 3VA9908-0BB23 Undervoltage Release

Accessory for 3VA1 and 3VA20-26 circuit breakers

Product Details

Product Brand Name	SENTRON
Product Designation	Auxiliary release
Accessories	Auxiliary release

General Technical Data

Degree of Pollution	3
Overvoltage Category	III
Apparent Power Consumption / Maximum	2 VA

Voltage Data

Surge Voltage Resistance	4 kV

Mechanical Design

Height	65.1 mm
Width	25.7 mm
Number of Slots	3
Depth	28.8 mm
Net Weight	91 g
Tightening Torque / with Screw-Type Terminals / Minimum	0.4 N·m
Tightening Torque / with Screw-Type Terminals / Maximum	0.5 N·m

Connections (IEC)

Stripped Length	10 mm
Connectable Conductor Cross-Section / Minimum	0.5 ... 1.5 mm²
Connectable Conductor Cross-Section / Maximum	1.5 mm²
AWG Number / as Coded Connectable Conductor Cross Section / for Auxiliary Contacts / Minimum	20
AWG Number / as Coded Connectable Conductor Cross Section / for Auxiliary Contacts / Maximum	16

Connections (UL)

Stripped Length [in]	0.4 in
Tightening Torque [lbf·in] / with Screw-Type Terminals / Minimum	3.5 lbf·in
Tightening Torque [lbf·in] / with Screw-Type Terminals / Maximum	4.4 lbf·in

Certifications

CE (EG-Konf.)
UKCA
EAC
RCM

Diagrams and Dimensions

Dimensional Drawing

A diagram illustrates the physical dimensions of the undervoltage release. The front view shows a height of 65.1 mm and a width of 25.7 mm. An internal depth of 21.7 mm is indicated, with an overall depth of 28.6 mm. The side view confirms the height of 65.1 mm and the overall depth of 28.6 mm.

Schematic Diagram

A schematic diagram features a central box labeled "U<", representing an undervoltage function. Terminals are labeled "D1" and "D2" along a vertical line passing through the box. A component or connection point is labeled "-F" to the left of the box.

Further Information and Resources

Information on Packaging:https://support.industry.siemens.com/cs/ww/en/view/109813875
Information- and Downloadcenter (Catalogs, Brochures,...):http://www.siemens.com/lowvoltage/catalogs
Industry Mall (Online ordering system):https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3VA9908-0BB23
Service&Support (Manuals, Certificates, Characteristics, FAQs,...):https://support.industry.siemens.com/cs/ww/en/ps/3VA9908-0BB23
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...):http://www.automation.siemens.com/bilddb/cax_en.aspx?mIfb=3VA9908-0BB23
CAx-Online-Generator:http://www.siemens.com/cax
Tender specifications:http://www.siemens.com/specifications

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