EnSpire Series Overview
Compact Protection - Big Time Value
The Minuteman EnSpire Series UPS is a low-cost high performance UPS line that provides the features needed to protect your valuable equipment.
The EN400 and EN600 units each have six outlets, three provide battery support along with spike and surge protection and three with spike and surge protection only.
The EN750 and EN900 have four each of the outlets described above for total protection of up to eight connected devices. In addition, all units have outlets which are specifically spaced to support transformer blocks.
The EnSpire UPS has a small footprint and is uniquely designed with outlets on the top for placement on or under a desk or table and all models can be wall mounted.
For over 30 years, Para Systems, Inc. has provided quality power products and excellent personalized service with direct human response to all service and support calls. EnSpire products pass extensive quality control before being shipped to our end users.
Applications
- Small capacity equipment loads
- Desktop/laptop workstations
- Small phone systems
- VoIP handsets
- Home entertainment/theater systems
- Security systems (cameras, DVRs, access control devices)
- Low-power network devices
Features

EnSpire EN400 & EN600 Features
- Minuteman SentryPlus Software – SentryPlus auto-shutdown and monitoring software is included with every unit. No special downloads or coupons are required.
- USB Communications – EnSpire UPS USB connections are automatically recognized by Microsoft Windows® software. No special USB drivers are required. The EnSpire Series automatically recognizes USB connections with its HID (Human Interface Device)-compliant USB communications.
- Single line phone/fax/modem protection - The EnSpire UPS provides a low cost means of protecting telephone/fax/modem lines.
- RoHS Compliant – All EnSpire products are manufactured using non-hazardous materials making them safer for the environment (Excludes lead acid batteries).
- Larger Load Capacities – Minuteman has increased the capacities of the units allowing them to support larger power requirements.
- Minuteman Support - Para Systems includes full end user support that includes toll-free technical service from our headquarters in Carrollton, Texas.
- Warranty - The UPS is covered by a three-year parts and labor warranty and $50,000 Minuteman Platinum Protection Plan® (U.S.A. and Canada only). The battery is covered by a two-year warranty.
EnSpire Top View (EN400/EN600)

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Additional features on EnSpire 750 & 900VA (EN750/EN900)
- Additional Outlets - two additional outlets (1 battery/surge, 1 surge-only)
- Coax Surge Protection
- LCD Display – provides clear, readable information about the UPS including:
- Input voltage
- Output voltage
- Battery capacity (in percent capacity)
- Estimated runtime
- Input frequency
- AC normal
- Battery mode
- UPS fault
- Overload
- Output frequency
- Weak/bad battery
- Alarm silence display
- Connected load consumption (in percent load)
EnSpire Top View (EN750/EN900)

Click to enlarge
Models
EnSpire Online Spec Sheets powered by SizeMyUPS
Additional resources
EnSpire Models

EnSpire Series Runtime Chart

Software
Minuteman SentryPlus™ Monitoring and Control Software
Powerful SentryPlus UPS Monitoring and Control Software
Minuteman’s SentryPlus™ UPS monitoring and control software comes included with each EnSpire UPS unit (download only for EN400) at no extra charge. SentryPlus is compatible with Windows (7, XP, 2000, Server 2003), Unix and Linux operating systems. With SentryPlus software users can monitor and control any new and previously sold or installed Minuteman UPS products on a connected network from one application session. The ease of installation, ease of use, and backward compatibility makes it the best software of its kind.
Specifications
View complete specifications table in the EnSpire brochure (PDF)
| MODEL |
EN400 |
EN600 |
EN750 |
EN900 |
| Maximum Power Capacity |
400VA / 200W |
600VA / 300W |
750VA / 400W |
900VA / 500W |
| Topology |
Standby UPS |
| Battery-backup /
Surge-protected outlets |
3 NEMA 5-15R |
4 NEMA 5-15R |
| Surge-only outlets |
3 NEMA 5-15R |
4 NEMA 5-15R |
| Input
|
| 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 |
120VAC |
| Voltage Regulation |
Nominal ±5% (until Low Battery Warning) |
Nominal +2%/-9% (until Low Battery Warning) |
| Frequency |
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 |
| Protection |
Over-Current, Short-Circuit Protected and Latching Shutdown |
| Physical
|
| 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 |