Description
Introduction
The Schneider MTN668991 is a professional-grade lead gel battery component engineered within the Schneider KNX product series. Designed to deliver dependable 12V auxiliary power support for building automation and control panels, this 18.6 Ah battery provides continuous electrical storage to safeguard critical operations during power disturbances. Housed in a durable black plastic casing, it meets strict commercial integration standards. Explore more Schneider KNX solutions for professional building automation projects.

Suitable for system integrators, panel builders, and automation buyers, the MTN668991 ensures consistent continuous power across demanding environment profiles. By sourcing original Schneider accessories through KNXbazzar (https://knxbazzar.com), procurement teams can verify exact bill-of-materials (BOQ) compliance and protect project timelines with authentic hardware.
Key Features
- • SKU Reference: Schneider MTN668991.
- • Component Type: Lead Gel Battery.
- • Nominal Operating Voltage: 12 V DC.
- • Rated Capacity: 18.6 Ah.
- • Enclosure Material: Black plastic casing.
- • Physical Dimensions: 180 mm (L) x 72 mm (W) x 166 mm (H).
- • Operating Ambient Temperature: -15 °C to 40 °C.
- • Single Package Weight: 6.241 lbs (1 PCE per package).
Benefits
- • Reliable 12V Auxiliary Power: Delivers a steady nominal operating voltage of 12V with an 18.6 Ah capacity for standby auxiliary energy storage.
- • Sealed Lead Gel Technology: Implements lead gel battery chemistry housed in a black plastic casing for safe, long-term operational stability.
- • Temperature Resilient: Operates effectively across a wide ambient temperature range from -15 °C to 40 °C.
- • Schneider KNX Integration: Engineered specifically as a standard system accessory component for the Schneider KNX infrastructure product line.
- • Official Warranty Protection: Features an 18-month manufacturer warranty to support long-term commercial installation requirements.
Technical Specifications
Applications
- • Standby Power Infrastructure: Serves as an auxiliary energy buffer within Schneider KNX panel setups to support continuous system functioning.
- • Smart Building Management: Provides reliable 12V DC lead gel power backup for commercial automation, safety, and monitoring installations.
- • Distribution Board Assemblies: Fits neatly into standard automation cabinets requiring a compact 180 x 72 x 166 mm battery module.
Installation Notes
- • Temperature Monitoring: Ensure that cabinet environments remain within the verified operating range of -15 °C to 40 °C to preserve battery life and performance.
- • Space Planning: Allocate sufficient mounting dimensions to accommodate the physical footprint of 180 mm length, 72 mm width, and 166 mm height, along with a total package unit weight of 6.241 lbs.
Developer Resources
- System engineers can consult Schneider developer resources and documentation—including product data sheets, catalog files, CAD drawings, and environmental disclosures—to support system architecture planning and official BOQ matching through KNXbazzar.
FAQ
What is the exact battery chemistry and capacity of Schneider MTN668991?
The Schneider MTN668991 is a lead gel battery with a nominal operating voltage of 12V and a rated capacity of 18.6 Ah.
What are the dimensions and casing material of this battery?
It is constructed with a black plastic casing and measures 180 mm in length, 72 mm in width, and 166 mm in height. For certificates and current technical files, refer to the official Schneider documentation.
What is the ambient temperature tolerance for this Schneider accessory?
The battery is rated to operate in ambient temperatures ranging from -15 °C to 40 °C.
What warranty is provided with the MTN668991?
Schneider provides an 18-month warranty for the MTN668991 lead gel battery.
What is the exact product model?
The order/model code for this page is MTN668991. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by Schneider.
Conclusion
The Schneider MTN668991 12V 18.6Ah Lead Gel Battery is a critical power accessory for robust KNX building automation networks. Installers and system integrators can review our KNX dealer program options.
Featuring a sturdy black plastic enclosure, an 18-month warranty, and verified operating characteristics, it offers dependable standby energy to ensure uninterrupted building operations.






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