Siemens Auxiliary switch, changeover contacts, type HQ

Product Overview

The Siemens 3VA9988-0AA12 is a high-quality auxiliary switch with changeover contacts Type HQ (7mm) designed as an internal accessory for 3VA1 and 3VA20-26 series molded case circuit breakers. This compact switching component provides reliable auxiliary contact functionality for SENTRON 3VA circuit breaker systems, enabling flexible signaling and control applications in industrial and commercial electrical installations with its failsafe color-coded design.

Key Features

• Type HQ Changeover Contacts: Reliable switching performance with 7mm compact width design
• Color & Mechanical Coding: Failsafe installation system prevents assembly errors and ensures consistent compatibility
• Universal Compatibility: Designed for 3VA1 and 3VA20-26 series molded case circuit breakers
• 690V Voltage Rating: High voltage capability suitable for demanding industrial applications
• Compact 7mm Profile: Space-efficient design optimizes panel space utilization
• Internal Accessory Design: Integrates seamlessly into circuit breaker accessory pockets
• Serbian Manufacturing: Quality construction ensuring reliable long-term performance

Technical Specifications

• Contact Type: Changeover contacts Type HQ
• Voltage Rating: 690V
• Width: 7mm
• Dimensions: (H) 56mm x (W) 7mm x (D) 30mm
• Net Weight: 0.027 kg
• Packaging Dimensions: 100.00 x 170.00 x 7.50 mm
• Packaging Quantity: 1 piece
• Country of Origin: Serbia
• EAN: 4042949000037
• UPC: 804766447709

Applications

This auxiliary switch is particularly suitable for:

• Industrial electrical distribution systems
• Commercial building electrical installations
• Motor control and automation applications
• Circuit breaker status indication systems
• Remote monitoring and control circuits
• Electrical panel signaling applications
• Process control and automation systems
• Building management system integration
• Emergency shutdown circuit applications
• Load monitoring and protection systems

Compliance & Certifications

• RoHS Compliance: Compliant since June 1, 2012
• WEEE Directive: Subject to take-back obligations under directive 2012/19/EU
• REACH Regulation: No current information on SVHC substances from supply chain
• Export Control: AL: N / ECCN: N
• Product Class: B - Return restricted, please contact your Siemens partner/contact

Product Classification

• eClass: 27-37-13-92 (versions 12, 14), 27-37-92-01 (versions 6-9.1)
• ETIM: EC002498 (versions 7-9)
• UNSPSC: 39-12-11-03
• Product Group: 5376
• Group Code: P360

Download existing graphical data for this product:

• Technical Datasheet
• EPLAN Data Portal - CAD Data
• Product Information Page