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Siemens 24V 12Ah UPS battery box in grey enclosure

SIEMENS

SIEMENS 6EP1935-6MF01 UPS Battery 24V 12Ah electrical box

SKU CH-XQXF-H94AA

Extension UPS battery rated 24 V DC, 12 Ah for models 12N868, 12N869 and 12N870 with detachable cable

  • TypePower Quality & Distribution
  • Reliable 24V backup power with 12Ah capacity
  • Compatible with 12N868, 12N869 and 12N870 UPS models
  • Detachable cable allows quick battery replacement
  • Compact 10in wide design fits standard enclosures
  • Siemens industrial-grade quality for critical systems

Extension UPS Battery for Siemens 12N868 Series

This 24 V DC, 12 Ah extension battery connects to compatible Siemens UPS units 12N868, 12N869 and 12N870 via a detachable cable. It adds runtime to existing power-quality installations without requiring a complete system replacement. The unit suits facilities that need scalable backup capacity for critical 24 V loads.

Passive Electrical Enclosure

The battery housing contains no active cooling, so it generates no fan noise and draws no power while on standby. Heat dissipation relies on natural convection within the steel enclosure during charge or discharge cycles. Operating temperature stays within the cell chemistry limits when the module is mounted with adequate air space around its 6 5/8 in height, 4 3/4 in depth and 10 in width.

Integration Into 24 V Backup Systems

The detachable cable allows the module to be positioned separately from the host UPS, freeing rack or panel space for other equipment. Polarity-marked terminals prevent misconnection during installation. Buyers who need higher voltage strings, longer runtime than a single 12 Ah module provides, or integrated monitoring will need additional components not included here.

Highlights

  • Reliable 24V backup power with 12Ah capacity
  • Compatible with 12N868, 12N869 and 12N870 UPS models
  • Detachable cable allows quick battery replacement
  • Compact 10in wide design fits standard enclosures
  • Siemens industrial-grade quality for critical systems

Specifications

BrandSIEMENS
TypePower Quality & Distribution

Questions about this item

How is the 24V DC UPS battery installed and which step is often missed?

Connect the detachable cable to the matching terminals on the 12N868, 12N869 or 12N870 unit, then secure the 10 in wide by 6 5/8 in high enclosure. The step most often missed is confirming polarity on the detachable cable before tightening the connections.

What maintenance will the 12 Ah battery need later?

Plan to replace the 12 Ah battery pack when runtime drops below the load requirement; no user-serviceable cells or watering are involved, so replacement is the only scheduled action.

What limit appears first during sustained discharge of the 24V DC pack?

The 12 Ah capacity sets the runtime ceiling; once the stored ampere-hours are depleted the voltage will fall and the UPS will shut down, so capacity is the first hard limit.

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