Siemens SITOP UPS501S DC UPS Expansion Module

Technical Overview

DC UPS expansion module with 5 kW·s maintenance-free capacitor energy storage, IP20 rated, for DIN-rail mounting. Extends buffer time for 24V systems.

Key Features

Provides 5 kW·s capacitor energy storage.
Designed for use with SITOP UPS500S base units.
Supports parallel connection of up to three expansion modules for increased buffer time.
Utilizes maintenance-free capacitor technology (Ultracaps).
Features DIN-rail mounting for easy installation.
Offers IP20 protection against solid objects larger than 12.5mm.
Wide operating temperature range of 0 °C to +60 °C.
Class III protection for safety.
Screw-type terminals for electrical connections.

Technical Specification Matrix

Parameter	Value
Energy Storage	5 kW·s capacitor
Protection Class	Class III
IP Rating	IP20
Operating Ambient Temperature	0 to +60 °C (with natural convection)
Storage/Transport Ambient Temperature	-40 to +70 °C
Mounting Type	DIN rail
Electrical Connection Type	Screw terminal
Compatible Base Unit	SITOP UPS500S (2.5 kWs, 5 kWs)
Physical Weight (kg)	0.7
Dimensions L x W x H (cm)	16 x 15 x 10

Industrial Applications

1. Controlled Shutdown of Industrial PCs in Automation Systems

This module provides critical backup power for industrial PCs in automation environments, ensuring a safe and controlled shutdown during unexpected power interruptions. Its 5 kW·s capacitor energy storage capacity is ideal for buffering the 24V supply to prevent data loss and allow for defined system states, minimizing downtime and potential damage.

Problem Solved

Prevents data corruption and ensures a defined system state during brief power outages in PC-based automation solutions.

Industrial PCcontrolled shutdowndata integrity24V DCpower failureautomation5 kW·s

2. Extending Buffer Time for Critical 24V DC Loads in Manufacturing Plants

In manufacturing facilities, continuous operation of 24V DC loads like sensors, actuators, and controllers is vital. This expansion module extends the buffer time of a SITOP UPS500S system, providing extended runtime during short power fluctuations or outages. Its robust design, including an IP20 rating and 0 to +60 °C operating temperature, makes it suitable for typical industrial control cabinets.

Problem Solved

Extends the runtime of critical 24V DC loads, such as sensors, actuators, and small controllers, during short power interruptions, preventing immediate process halts and associated downtime.

DC UPS24V DC loadsmanufacturingprocess continuityshort power interruptioncapacitor storageIP200 to +60 °C

3. Backup Power for Remote Monitoring Stations

For remote industrial monitoring stations where traditional battery maintenance can be challenging, this maintenance-free capacitor-based expansion module offers a reliable backup power solution. Its wide operating and storage temperature ranges (-40 to +70 °C for storage/transport, 0 to +60 °C for operation) ensure resilience against environmental variations, providing continuous power for critical data acquisition and communication systems within protected enclosures.

Problem Solved

Provides robust, maintenance-free backup power for remote monitoring stations, especially where battery maintenance is difficult or ambient temperatures fluctuate.

Remote monitoringmaintenance-freecapacitorharsh environmentbackup powerindustrial resilience0 to +60 °CIP20