Siel Energy Systems provide a range of Uninterruptable Power Systems (commonly known as a UPS) products and services.

Uninterruptible Power Supplies are freestanding backup power unit which provides a continuous clean power supply to your computer system in the event of a power failure. Uninterruptible Power Systems are known for their near-instantaneous protection from power interruptions by using energy stored in batteries.

Using an Uninterruptible Power System for a computer is the best way to prevent data loss and damage that often occurs with power failures.

Siel Energy Systems can provide you with a complete service from design advice, project management, installation, through to annual maintenance, servicing, repair and decommissioning. We carry out UPS battery replacements, UPS battery removal, and scrappage.

UPS Advice

We can advise you on your UPS system design and UPS redundancy requirements. We can provide redundant N+1 UPS systems, N+N UPS systems, dual bus UPS systems or a single N UPS installation. We can provide tier I, tier II, tier III or tier IV designs.

Our experienced UPS engineers can commission your UPS, maintain your UPS and set up your UPS SNMP communications. Our UPS engineers can carry out battery impedance testing and battery load bank tests.

Siel Energy Systems are partnered with a number of UPS manufacturers. These include Riello and Huawei.

UPS Products

Siel Energy Systems service and maintain many UPS products, these include:

  • Multi Sentry MST
  • Multi Sentry MCT
  • Multi Sentry MSM
  • Sentinel Dual SDU
  • Sentinel Power SPT
  • Sentinel Power SPW
  • Multi sentry frequency converter

Siel Energy Systems have been at the forefront of installing the flagship Huawei modular UPS5000 UPS product in the UK.

Necessary Ancillary Equipment

In addition to UPS products, we can supply all the necessary ancillary equipment to complete your UPS installation. This includes:

  • External Maintenance Bypass Switches – also referred to as an EMBS,
  • DC battery switchgear, DC battery fused isolators, DC battery string fuses,
  • Battery racks including open battery racks and cladded battery racks,
  • Static Transfer Switches – also referred to as an STS,
  • UPS monitoring and management software.

Siel Energy Systems is a truly nationwide UPS service provider, we can provide UPS installation and maintenance contracts throughout the UK.

View our range of high-quality Uninterruptible Power Systems (UPS), here:

Multi Power

  • Input / Output Phase Configuration Options: 3/3 Phase
  • Rating: 15-1176kVA/kW
  • High availability
  • Scalability
  • Unmatched power density
  • Efficiency >96.6%
  • Hot swappable power modules
  • Multiple controls
  • High flexibility
  • Advanced commands
  • Lithium battery compatible
Read More
Sentinel Dual Main

Sentinel Dual (SDU)

  • Input / Output Phase Configuration Options: 1:3 Phase, 1/1 Phase
  • Rating: 5 – 10 kVA
  • Mounting Options: Rackmount, Tower
  • Tower or 19″ Rack mount
  • Power factor 1 kW = kVA (from SDU 5000)
  • Parallelable up to 3 units
  • Simplified installation
  • Operating mode selection
  • High quality output voltage
  • High battery reliability
Read More
HUAWEI UPS5000-S

UPS5000-S: 50-800

  • Input / Output Phase Configuration Options: 3/3 Phase ON LINE
  • Rating: 50-800kVA / kW MODULAR
Read More
HUAWEI UPS5000-S

UPS5000-E: 50-800

  • Input / Output Phase Configuration Options: 3/3 Phase ON LINE
  • Rating: 50-800kVA / kW MODULAR
Read More
S5000-E F125

UPS5000-E F125

  • Input / Output Phase Configuration Options: 3/3 Phase ON LINE
  • Rating: 25-125kVA / kW MODULAR
  • Modular UPS.
  • Output power range from 25 – 125kVA/kW.
  • Unity output power factor (kVA = kW).
  • Up to 4 frames can be connected in parallel.
  • Integral SNMP & LBS (load bus sync).
  • Hot swap power, bypass & control modules.
  • Top or bottom cable entry.
Read More
Uploaded To S5000-E: Battery Integrated System

UPS5000-E: Battery Integrated System

  • Input / Output Phase Configuration Options: 3/3 Phase ON LINE
  • Rating: 25-75kVA / kW MODULAR
Read More
MST Series

MST Series

  • Rating: 30-200kVA

• Output Power Range 30-200 kVA

• Suitable for powering capacitive loads, such as blade servers, without any reduction in active power from 0,9 lead to 0,9 lag

• Small footprint

• High AC/AC efficiency of up to 96.5%

• Zero impact source

• Flexibility of use

• Advanced communications

Read More
sentinel pro

Sentinel Pro

  • Input / Output Phase Configuration Options: 1/1 Phase ON LINE
  • Rating: 700-3000VA

• Output Power factor 0.9

• Operating flexibility

• Emergency function

• Battery optimisation

• Extended runtimes

• Low noise level

Read More
Sentinel Dual (LowPower)

Sentinel Dual (LowPower)

  • Input / Output Phase Configuration Options: 1/1 Phase ON LINE
  • Rating: 1000-3000VA

• Power factor 0.9.

• Simplified installation.

• Installation options: 19″ Rack or Tower.

• Reduced running costs

• Extended runtime options.

• Low noise level.

Read More

SENTRYUM

  • Input / Output Phase Configuration Options: 1/1 Phase ON LINE, 3/1 Phase ON LINE, 3/3 Phase ON LINE
  • Rating: 10 – 20kVA/kW
  • Flexible choice of 3 cabinet sizes (Compact, Active, Xtend)
  • Operating efficiency up to 96.5% (online mode)
  • Delivers unity power factor (kVA = kW)
  • High overload and short circuit capacity
  • Large colour touchscreen display and LED status indicator
  • Parallel operation – up to 8 units in parallel for either ‘Capacity’ and/or ‘Redundancy’
Read More
Vision Rack

Vision Rack

  • Input / Output Phase Configuration Options: 1/1 Phase LINE INTERACTIVE
  • Rating: 800-1100VA

• Superior protection

• High availability

• Versatile

• LCD display

• Automatic voltage regulation (AVR)

Read More
Vision Dual

Vision Dual

  • Input / Output Phase Configuration Options: 1/1 Phase LINE INTERACTIVE
  • Rating: 1100-3000VA

• Automatic Voltage Regulation (AVR)

• Superior protection

• High efficiency

• High availability

• Versatile

• Advanced communications

Read More