Siemens SENTRON 3VA – Accessories – 3VA9988-0AB34
The Siemens 3VA9988-0AB34 is a short-circuit alarm switch accessory designed for SENTRON 3VA molded case circuit breakers (MCCBs). It provides reliable remote signaling of short-circuit tripping events, allowing operators to quickly identify fault conditions in power distribution systems and take corrective action.
This accessory is part of the internal 3VA MCCB modular accessory system and is commonly used in industrial switchboards, MCC panels, automation systems, and building power distribution networks. It enhances system monitoring by providing a clear electrical signal whenever the breaker trips due to a short-circuit fault.
The design follows Siemens’ standardized 3VA accessory platform, ensuring easy integration, high reliability, and consistent performance across 3VA1 MCCB frame sizes.
Key Features:
• Short-circuit alarm / signalling switch accessory
• Designed for Siemens SENTRON 3VA MCCB system
• Provides remote indication of short-circuit trip events
• Internal plug-in accessory design for easy installation
• Suitable for industrial and commercial power systems
• High reliability signaling contact mechanism
• Compatible with 3VA1 MCCB frame variants (250/400/630 A ranges)
• Compact modular construction
• Suitable for automation and monitoring integration
Technical Specifications
|
Parameter |
Specification |
|
Product Model |
3VA9988-0AB34 |
|
Brand |
Siemens |
|
Product Series |
SENTRON 3VA |
|
Product Type |
Short-Circuit Alarm Switch |
|
Function |
Fault / Short-Circuit Indication |
|
Contact Type |
Changeover contact (signaling) |
|
Mounting Type |
Internal MCCB accessory (plug-in) |
|
Compatible Series |
Siemens 3VA1 MCCB |
|
Application |
Fault indication & remote monitoring |
|
Operating Voltage |
Up to 250 V AC/DC (signal circuit) |
|
Design |
Modular 7 mm accessory system |
|
Installation |
Tool-free internal mounting |
|
Standards |
IEC 60947-2 (system compliance) |
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