OTEC400


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Page last updated 09/25/08
 

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specs
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Automatic Transfer Switch
400 amp, 120/240V, 1-phase
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

* Fully programmable exerciser clock.
* Elevator signal relay.
* Battery chargers.
* UL/NEMA 3R, 4, 12 enclosures.

Specs

Switch Current Rating 400 amps
Poles 2 pole with solid neutral
Voltage Rating 120/240V, 1 phase
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 through 3000A rating
- 120VAC through 600VAC
- 4 pole with switched neutral
- 50Hz
- 3 phase 3 wire or 4 wire
- type 3R, 4, 12 enclosures
Lug Capacities
Caution: Do not run control wiring through power cable conduit or raceway.
(1) 3/0-600MCM
Enclosure UL type 1 indoor (types 3R, 4, 12 optional)
Color Cummins
Nominal Dimensions (H x W x D) 54" x 25" x 18" (42" D with door open) NEMA 1
59" x 27.5" x 16.5" (41.5" D with door open) NEMA 3R
Weight 225 lbs. NEMA 1
275 lbs NEMA 3R

NOTE:
This switch is not service entrance rated.  This generally means that you need a service entrance rated device between this switch and your utility meter.

 

Item Number: OTEC400
Price: $3,405.00
Shipping Weight: 275 lbs.

This item normally ships out in 2-4 weeks after order acceptance.  Click here for the latest lead time for this product.

enclosure:
warranty:
 

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