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| typical photos | specs for non-service entrance rated | specs for service entrance rated |
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Page last updated Jul 16, 2011 @ 12:18am
OTEC400
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| typical photos | specs for non-service entrance rated | specs for service entrance rated |
| Click thumbnail image above to enlarge | ||
Automatic Transfer Switch
400 amp
with exerciser clock kit & charger
The OTEC Open Transition Transfer Switch provides dependable load transfer for emergency and standby applications. Featuring an easy-to-use microprocessor-based control panel, this switch provides reliable and cost-effective load transfer between a utility service and generator set.
Standard Features
* Open transition load transfer with selectable phase check or programmed transition.
* 3-phase voltage sensing on the normal source; single phase sensing on the generator.
* Front panel indicators and push buttons for ease of set-up.
* Simple-to-read control panel that features universal symbols for easy status recognition.
* Adjustable time delays.
* Integral exerciser clock.
* UL/NEMA 1 indoor enclosure.
* UL Listed and CSA Certified.Optional Features
* Service entrance rated disconnect
* Fully programmable exerciser clock.
* Elevator signal relay.
* Battery chargers.
* UL/NEMA 3R, 4, 12 enclosures.
Specs
| Switch Current Rating | 400 amps |
| Poles | 3 pole with solid neutral |
| Voltage Rating | 600Vac maximum |
| Transfer Time | 6 cycles max at 60Hz with nominal voltage applied to actuator (without delayed transition enabled) |
| Operating Temperature | -22F to +140F (-30C to +60C) |
| Operating Humidity | 95% relative humidity, non-condensing |
| Altitude | up to 10,000 feet without derating |
| Microprocessor Control |
- start time delay: 0-10 seconds adj. - transfer time delay: 0-300 seconds adj. - retransfer time delay: 0-30 minutes adj. - stop time delay: 0-30 minutes adj. - programmed transition 0-10 sec adj. - undervoltage sensing of normal source: pickup 90% to 95% of nominal adj. dropout 70% to 90% of nominal adj. dropout time delay: 0.1-1.0 seconds adj. - undervoltage sensing of generator: pickup 90% of nominal dropout 75% of nominal dropout time delay: 0.1-1.0 seconds adj. - frequency sensing of generator: pickup 90% of nominal dropout 75% of nominal |
| Options Included | - 2 amp battery charger |
| Other Options Available at additional cost (partial listing) |
- 40A, 70A, 125A, 150A, 225A,
260A, 300A, 400A, 600A, 800A, 1000A ratings - 120VAC through 600VAC - 4 pole with switched neutral - 50Hz - 3 phase 3 wire or 4 wire - type 3R, 4, 12 enclosures - service entrance rated disconnect (through 800A) |
| Lug Capacities Caution: Do not run control wiring through power cable conduit or raceway. |
(1) 3/0-600MCM or (2) 3/0-250MCM |
| Enclosure | UL type 1 indoor (types 3R, 4, 12 optional) |
| Color | Cummins |
| Nominal Dimensions (H x W x D) | see spec sheet above |
| Weight | see spec sheet above |
NOTE:
This switch is available with service entrance rating as an optional adder. Without this option you normally will need a service entrance rated disconnect between this switch and your power company meter.
Item Number: OTEC400
Price: $3,606
Price last updated 1/3/2010
Shipping Weight: 225 lbs.
This item normally ships in approximately 2 weeks or less.
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