Reliable power for a sustainable world
Power Range: 20 - 100 kVA

Central Power Supply (CPS) version of the Multi Sentry series designed to protect emergency, security and safety applications such as emergency lighting, smoke detectors, fire alarms, and sprinklers. Complies fully with EN 50171.

Delivers several hours of battery autonomy with short recharge times (up to 80% of capacity within 12 hours). Dual input as standard with optional galvanic isolation. Casing meets exacting standards of EN 60598-1.

CSS Multi Sentry 30-40


  • Central Power Supply compliant with EN 50171 standards 

  • Designed for use in emergency or safety-related applications 

  • Supports continuous overloads of up to 120%

  • Long battery autonomy and fast recharge times (< 12 hours) 

  • Dual input as standard   

Brochures and data sheets

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Central Supply Systems

Technical specifications of the model

The CSS Multi Sentry is a three-phase Central Power Supply System designed for use in a wide range of emergency and safety-related applications.

It is a reliable solution for situations including emergency lighting, fire safety and prevention (i.e. smoke extractors and fire extinguishers), lifts, safety alarms, warning systems (i.e. carbon monoxide detectors), and safety signs.

Available in 20-30-40-60-80-100 kVA versions.


Dual Input As Standard

CSS Multi Sentry incorporates dual input as standard, which enables you to carry out all the mandatory system easily and safely checks without the risk of the CSS going offline.

During inspections, the bypass line continues to support the load, so you’re protected even in the event of a failure with the main input supply.


Enhanced Battery Care

All Riello UPS CSS Multi Sentry provide long battery autonomy with quick recharge times guaranteed (up to 80% of full autonomy within 12 hours).

Sophisticated monitoring and battery care systems also maximise lifespan, deploying techniques such as deep discharge protection to reduce battery degradation.


Protection Against Battery Inversion

This ensures the safety of your staff or any service engineers carrying out maintenance on your CSS. It also prevents system damage if they have been mistakenly connected with the wrong polarity.


High Overload Capacity

CSS Multi Sentry can support continuous overloads up to 120% of the system’s nominal power rating. This protection isn’t time limited.