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Emerson Network Power > United States > Products > DC Power > DC UPS > NetSure™ ITM 48 VDC UPS, 70 kW to 280 kW
NetSure™ ITM
with eSure™ Technology
48 VDC UPS, 70 kW to 280 kW
Data center-optimized row-based 48 VDC UPS that is designed to support the move to higher efficiency, density and flexibility enabled by row-based power and cooling.
Overview

The NetSure™ ITM lowers the cost of data center design, operation and management. This 48 V direct current solution is a row-based DC UPS that delivers simple, scalable and highly efficient data center power protection in 70 kW modules. Up to four DC UPS modules can be installed together for 280 kW of total power.

The NetSure™ ITM is deployed directly on the server room floor, providing protected 48 V power to nearby equipment racks. This preserves the efficiency and reliability benefits of DC power, minimizes the amount of copper required, and enables modular growth.

NetSure™ rectifiers or power conversion units (PCUs) with eSure™ high-efficiency technology are the heart of the NetSure™ ITM. Each DC UPS module includes twelve independent 5.8 kW PCUs. Each DC UPS module is factory integrated with distribution and batter backup. 48 V branch distribution via 22 circuit breakers (6 fuses optional); 5 minutes to 10 minutes of battery backup is provided across three parallel 48 V battery strings.

The NetSure™ RDB Series offers complementary, plug-and-play zero rack unit power distribution options.

Features and Benefits
High system efficiency: Enables significant energy savings even at low loads.
  • Reduced end-to-end power conversion stages
  • Efficient power conversion units (PCUs)
  • Energy optimization mode for near-peak efficiency down to 5% load
Scalability and ease of deployment: Add expansion DC UPS modules as power needs increase, without interruption in the field
  • Minimizes initial investment
DC architecture simplicity
  • Fewer components, conversion stages and distribution breakers throughout the power chain ensures high availability
  • Eliminates complex synchronization circuits and the need to de-rate capacity for phase balancing or harmonics
High reliability and exceptional resiliency: Uninterrupted operation in the unlikely event of multiple component failures
  • Hot swappable PCUs are field replaceable without critical bus disruption

Ease of maintenance: Low voltage allows maintenance without bypass or shutdown

Compact footprint: Row-based, integrated design saves considerable facility space

  • Eliminates the need for a dedicated power room and separate PDU distribution

Flexible deployment options: Top or bottom cable entry allows for raised or non-raised floor installations

Advanced control and monitoring: Real time input and output monitoring

  • Power quality and consumption data
  • Enables facility planning for the system and each branch circuit
  • Albér battery monitoring technology assures optimal backup performance

One-year warranty: Provides full system coverage for one year

Software
Software Downloads:

NetSure.mib - Management Information Base (MIB) file for the SNMP function in NetSure™ ITM DC UPS
Product Specs
NetSure™ ITM – Technical Specifications
DC UPS Primary Module 1 Expansion Module 2 Expansion Module 3 Expansion Module 4
Power Rating (full) – kW 70 70 70 70
Power Rating (N + 1) – kW 64 70 70 70
AC Input Specifications
Phase 3
Power Factor 0.99 at full load, 0.98 at 50% load
Frequency – Hz 45 to 65
Input Voltage – Nominal 400 / 480 V, 3 wire + ground
Input Voltage – Range 304 VAC to 530 VAC; shall withstand up to 600 VAC input without damage.
Input Breaker Rating / AIC Rating – A 150 / 65,000
Input Current, Maximum / DC UPS Module 480 V: 115 A @ 384 V; 92 A @ 480 V
400 V: 138 A @ 320 V; 110 A @ 400 V
380 V: 145 A @ 304V; 116 A @ 380 V
Inrush Current Inrush current does not exceed 150% of the rated input steady state peak value
Total Harmonic Distortion <5% from 50% to 100% of load
DC Output Specifications
Voltage, Nominal –48 VDC; Normal operation: –54.5 VDC (battery float)
Range: –42 VDC to –58 VDC
System Efficiency, Peak 92.5% (system level including branch distribution losses)
Energy Optimization Mode: Intelligent Power Matching Allows operation at near-peak efficiency down to 5% overall load
Branch Distribution Options 22 circuit breakers, 100 A to 200 A each; optional: 6 fuses, 2 x 500 A + 4 x 200 A
Battery Specification
Type VRLA, Emerson Excellence EB4, 200 Ah
Arrangement 3 strings; eight 6 V blocks per string
Backup Time See backup time table at various loads
Design Life 15 years @ 20 °C ; 10 years @ 25 °C
Recharge Time, Nominal 97%, less than 3 hours for >35% load; less than 4 hours >15% load
Physical Data
Form Factor Rack
Installed Dimensions (H x W x D) – in. (mm) 83 x 24 x 41 (2100 x 600 x 1040)
Installed Weight – lb. (kg) 3,214 (1,458)
Environmental Specifications
System Operating Temp. – °F (°C) –5 °C to +35 °C; recommended operation with battery: 20 °C to 25 °C air inlet
System Storage Temp. – °F (°C) –40 °F to 158 °F (–40 °C to +70 °C)
Relative Humidity 0% to 95%, non condensing
Operating Elevation – ft. (m) 6,562 (2,000) at full power
Audible Noise < 60dB
Heat Rejection at Full Load – BTU/hr. (kW) 18,096 (5.3) per DC UPS module
EMI FCC class A
Safety Certifications
Agency Approved CE Marked to EN 60 950-1:2006
UL Listed to 60 950-1 + UL 1801; CSA certified
 
Monitoring Capability
Standard Web-based monitoring, alarm reporting via SNMP, and integration with SiteScan via SiteLink-E module
Optional Energy Master Remote Supervision
 
5833 Watt PCU – Technical Specifications
DC Output
Output Power 5833W maximum
Regulation Steady state output voltage remains within +/-0.25% for any combination of input voltage from 5% to 100% load
Wide Band Noise Does not exceed 250 mv peak-to-peak, or 100 mv rms per Telcordia GR-947-CORE
Psophometric Noise Does not exceed 1 mv from 10% to 100% load
Protection
Current Limiting The output current is limited to 110 amps
Over Current Internal fuse
Physical Characteristics
Mounting Plug-in installation, hot swappable
Dimensions (H x W x D) – in. (mm) 3.36 x 8.83 x 14.62 (85.5 x 224.5 x 371.5)
Weight – lb. (kg) 17.6 (8)

 

Battery Back-up Time (minutes)

DC UPS Load

Single module 70 kW

Two modules 140 kW

Three modules 210 kW

Four modules 280 kW

10 kW

130

300

480

630

20 kW

55

130

210

300

30 kW

28

90

130

180

40 kW

17

55

90

130

50 kW

12

41

70

100

64 kW

7

24

50

75

70 kW

3

21

43

69

80 kW

 

17

34

55

90 kW

 

14

27

47

100 kW

 

12

22

40

110 kW

 

10

19

34

120 kW

 

8

17

28

134 kW

 

6

16

25

140 kW

 

3

14

22

150 kW

 

 

12

19

160 kW

 

 

10

17

170 kW

 

 

9

15

180 kW

 

 

8

14

190 kW

 

 

7

13

204 kW

 

 

4

11

210 kW

 

 

2

10

220 kW

 

 

 

9

230 kW

 

 

 

9

240 kW

 

 

 

8

250 kW

 

 

 

7

260 kW

 

 

 

6

274 kW

 

 

 

3

280 kW

 

 

 

1

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