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Liebert NetSure ITM (70-280kW)

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

The NetSure ITM is deployed directly on the server room floor, providing protected 48V 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 5.8kW PCUs. Each DC UPS module is factory integrated with distribution and batter backup. 48V branch distribution via 22 circuit breakers (6 fuses optional); 5-10 minutes of battery backup is provided across three parallel 48V battery strings.

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

Product Literature
NetSure ITM Brochure
NetSure ITM Site Planning Guide
Manual(s)
NetSure ITM Installation Manual

 

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 45-65
Input Voltage – Nominal 400 / 480V, 3 wire + ground
Input Voltage – Range 304-530 VAC; shall withstand up to 600 VAC input without damage.
Input Breaker Rating / AIC Rating – A 150 / 65,000
Max Input Current / DC UPS Module 480V: 115A @ 384V; 92A @ 480V
400V: 138A @ 320V; 110A @ 400V
380V: 145A @ 304V; 116A @ 380V
Inrush Current Inrush current does not exceed 150% of the rated input steady state peak value
Total Harmonic Distortion <5% from 50-100% of load
 
DC Output Specifications
Voltage Nominal: -48VDC; normal operation: -54.5 VDC (battery float)
Range: -42 to -58 VDC
System Efficiency 92.5% peak (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, 100-200A each; optional: 6 fuses, 2x500A + 4x200A
 
Battery Specification
Type VRLA, Emerson Excellence EB4, 200 Ah
Arrangement 3 strings; eight 6V blocks per string
Backup Time See backup time table at various loads
Design Life 15 years @ 20 °C ; 10 years @ 25 °C
Recharge Time to 97% of nominal capacity) 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) 3214 (1458)
 
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 to 158 °F (-40 °C to +70 °C)
Relative Humidity 0 to 95%, non condensing
Operating Elevation – ft. (m) 6562 (2000) 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 70kW Two modules 140kW Three modules 210kW Four modules 280kW

10kW

130

300

480

630

20kW

55

130

210

300

30kW

28

90

130

180

40kW

17

55

90

130

50kW

12

41

70

100

64kW

7

24

50

75

70kW

3

21

43

69

80kW

 

17

34

55

90kW

 

14

27

47

100kW

 

12

22

40

110kW

 

10

19

 34

120kW

 

8

17

28

134kW

 

6

16

25

140kW

 

3

14

22

150kW

 

 

12

19

160kW

 

 

10

17

170kW

 

 

9

15

180kW

 

 

8

14

190kW

 

 

7

13

204kW

 

 

4

11

210kW

 

 

2

10

220kW

 

 

 

9

230kW

 

 

 

9

240kW

 

 

 

8

250kW

 

 

 

7

260kW

 

 

 

6

274kW

 

 

 

3

280kW

 

 

 

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