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The Simplex Electra is a very large capacity, high performance Portable Load Bank designed to provide the manufacturers, distributors and users of large AC generators and UPS systems with sophisticated testing capability. Electra Load Banks feature digital controllers with network control and data acquisition capability. Operator interface is via touchscreen. Load control is via screen keypad. All electrical values display on the screen and are recorded by the system for future data retrieval. Any number of Electra and dynaMITE Load Banks can be combined for large system capacities and networked for central control and data acquisition.
The Electra Series comprises models rated 450-500-550-600-650-700kw of resistive load at both 240V and 480V, 3-phase. It can be applied at any AC voltage to 480V AC, 50-60 Hertz standard, single or 3-phase. Load step resolution is 5KW.
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 - UL File Number: E151624.
- Digital Control: PLC based control with 8-inch color TFT touchscreen interface. MODBUS over TCP/IP network communication.
- Instrumentation: Digital power transducer with built-in communication to digital controller. Data display on touchscreen. Data acquisition and recording.
- Load Elements: Simplex Powr-Web chromium alloy, open wire, continuously supported, power resistor.
- Load Control: 3-Pole magnetic contactors.
- Load Element Circuit Protection: Branch circuit fuses. One set of fuses each 50KW branch. Fuses are current limiting type, 200KAIC, 600V, enabling safe use on large generating or UPS system.
- Cooling System: Forced Air
- Malfunction Detection System: Protection against fan failure, high exhaust air temperature, high intake air temperature, overvoltage and fan reversal. Exhaust air temperature displays on screen.
- Control Power Supply: Dual voltage control power transformer with supply power switchable to internal (generator) or external.
- Touchscreen: Easily removable from panel.
- Control Wiring: 105°C, color coded.
- Power Wiring: 150°C XLP color-coded.
- Connection: Cam-type power connections.
| Capacity |
Electra 450:
450KW at 240/480V, 338KW at 208/416V, 282KW at 380V, 300KW at 240V, 1-ph
Electra 500:
500KW at 240/480V, 375KW at 208/416V, 313KW at 380V, 333KW at 240V, 1-ph
Electra 550:
550KW at 240/480V, 413KW at 208/416V, 345KW at 380V, 367KW at 240V, 1-ph
Electra 600:
600KW at 240/480V, 450KW at 208/416V, 376KW at 380V, 400KW at 240V, 1-ph
Electra 650:
650KW at 240/480V, 488KW at 208/416V, 407KW at 380V, 434KW at 240V, 1-ph
Electra 700:
700KW at 240/480V, 525KW at 208/416V, 439KW at 380V, 467KW at 240V, 1-ph
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| Power Factor |
1.0 |
| Full Load Amps |
Electra 450:
1082 at 240, 541 at 480V
Electra 500:
1202 at 240, 601 at 480V
Electra 550:
1322 at 240, 661 at 480V
Electra 600:
1442 at 240, 721 at 480V
Electra 650:
1563 at 240, 782 at 480V
Electra 700:
1683 at 240, 842 at 480V
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| Load Type |
Resistive |
| Cooling System |
Electra 450
Airflow: 9,000 CFM, Motor: 3 HP, Air Temp. Rise: 290°F max.
Electra 500
Airflow: 10,500 CFM, Motor: 3 HP, Air Temp. Rise: 325°F max.
Electra 550-700
Airflow: 12,500 CFM, Motor: 5 HP, Air Temp. Rise: 350°F max. |
| Voltages |
Dual: 240/480V, 3-ph.
Operational at any voltage to 480V AC maximum, single or 3-phase |
| Frequency |
50, 60Hz standard |
| Connection |
Cam-type |
| Time Rating |
Continuous |
| Ambient Air Temperature |
120°F |
| Fault Rating |
Fuses are rated 200KAIC. The load bank has a 5KAIC short circuit current rating. |
| Insulation Rating |
600V, 150°C |
| Fan/Control Power |
230/460V, 3-ph, 60Hz
190/380V, 3-ph, 50Hz
Switchable internal (generator) - external
230/460-115V control
power transformer internal to Load Bank
15' external power cord |
| Digital Load Step Control |
Nominal 5.0 kw resolution: direct enter any load value and controller will apply load within nominal 5kw resolution. |
| Dimensions |
34"W x 79.6"H x 60"D |
| Weight |
1,675 lbs. |
- 1-5-10-25KW load step resolution
- 400Hz modification
- Network control cables, 25-foot basic length
- Remote control cable extensions
- Simplex AUTO-TEST software for full automation of testing with data acquisition and report generation
- 12’ connection cable set including 3-phase power cables, ground cable, stored in rear compartment
- Weather resistant enclosure
- Highway trailer
Note: We are experts at building products that meet our customer's exact requirements. Contact Simplex if your job specifications require additional options or considerations.
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