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Minuteman UPS 400VA USB 3-Surge Outlets (EN4000)

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Minuteman UPS 400VA USB 3-Surge Outlets (EN4000)

Brand: Minuteman           P\N: EN400           UPC: 784755153432

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Availability: Discontinued

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Minuteman The EnSpire Series is ideal for computers and workstations, small servers and network devices. The EnSpire is compatible with all new production computers for providing auto-shutdown. Larger capacities enable the EnSpire Series to support most current PC power requirements.


  • Three UPS outlets and three surge-only outlets

  • Two transformer-friendly spaced outlets perfect for AC adapters

  • Fax/modem protection

  • Built-in USB communications port

  • Includes Minuteman® SentryPlus™ software for power monitoring and control

  • Three-year warranty for electronics (Two-year warranty for internal batteries)

  • RoHS compliant

  • $50,000 Minuteman Platinum Protection Plan® (U.S. and Canada only)

  • This unit is shipped from the manufacturer with the battery only partially installed. The back of the unit must be removed to completely connect the battery.


Back-up time - full load:  3.2 minutes
Back-up time - half load:  9.3 minutes

Warranty:  3-yr electronics/ 2-yr warranty for batteries

Runtimes for small loads of less than 10 percent of the stated capacity of a given UPS may vary greatly. Please call to confirm most accurate runtime for small loads.

Minuteman®  EnSpire™  Series Standby UPS Specifications

System Specifications

Model Number





Maximum Power Capacity

400VA / 200W

600VA / 300W

750VA / 400W

900VA / 500W


Standby UPS


Nominal Frequency

50 or 60Hz, ±5Hz, autosensing

Voltage Range

100 - 140VAC

Low Voltage Transfer Point

96V (± 3%) resets to utility power at 101V (± 3%) or higher

High Voltage Transfer Point

146V (± 3%) resets to utility power at 140V (± 3%) or lower

Surge Energy Rating

320 J

Input Protection

Resettable circuit breaker

Output Non-Battery Operation

Voltage Range

120VAC: 100 - 140VAC

Frequency Range

60Hz: 55 - 65Hz or 50Hz: 45 - 55Hz

Output Battery Operation

Waveform Type

Simulated sine wave

Nominal Voltage


Voltage Regulation

Nominal ±5% (until Low Battery Warning)

Nominal +2%/-9% (until Low Battery Warning)


50/60Hz, ±0.5Hz (unless synchronized to utility)

Transfer Time

6-8 ms Typical

Overload Capacity

105% for 10-seconds, 115% Shutdown Immediately

105% for 10-seconds, 120% Shutdown Immediately


Over-Current, Short-Circuit Protected and Latching Shutdown


Size - Net L x W x H

11.97 x 4.84 x 3.35 in  (304 x 123 x 85 mm)

12.40 x 7.20 x 3.30 in  (314 x 183 x 83 mm)

Weight - Net

6.44 lb (2.92 kg)

7.05 lb (3.20 kg)

9.40 lb (4.30 kg)

9.70 lb (4.40 kg)

Size - Shipping L x W x H

15.00 x 8.20 x 5.43 in (380 x 208 x 138 mm)

14.40 x 10.20 x 5.60 in  (367 x 260 x 143 mm)

Weight - Shipping

7.30 lb (3.30 kg)

8.00 lb (3.60 kg)

10.60 lb (4.80 kg)

11.02 lb (5.00 kg)

Regulatory Compliance

Safety Approvals, EMC

UL1778, cUL (CSA 22.2 no. 107.1),

FCC Class B

cTUVus (Conforms to UL1778, CSA 22.2 standards), FCC Class B


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Product Reviews for Minuteman UPS 400VA USB 3-Surge Outlets (EN4000)

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Average Review (1 reviews):5 Star Reviews!

Five Stars:
 1 (100%)
Four Stars:
 0 (0%)
Three Stars:
 0 (0%)
Two Stars:
 0 (0%)
One Star:
 0 (0%)
Recent Review:
Bob - Canton, OH - 4/30/2015
Worked just as it should.

Customer Reviews:
Worked just as it should.
- Canton, OH -
2 days after I installed it I used it when the power went off off 2 hours. It kept my phone working the whole time the power was off which is just what I wanted it to do. I now need to change some more cables to keep my computer up also. I would recommend the to a friend.

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