AC POWER SUPPLY / FREQUENCY CONVERTER
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INVERTER

UNINTERRUPTIBLE POWER SUPPLY (UPS)

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• AC-DC
• DC-DC

RAILROAD SIGNAL SOURCE

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APPLICATION NOTES

WILD FREQUENCY INFORMATION CENTER

 

INVERTER DC - AC Power Supply

 


SQ300-XXX
 

DC - AC SQUARE WAVE INVERTER FOR RAILROAD AND TRANSIT

 

Behlman's SQ300 series, Behlman's SQ300 Series is a rugged inverter that supplies 120 VAC from a 12 VDC source for continuous operation or standby operation of railroad signal equipment. The input is from a nominal 13.2 V lead acid or nickel cadmium battery, which should have a low internal impedance. The output is a square wave with a fixed frequency, 60 Hz, 100 Hz or 250 Hz, +/- 1% regardless of load, input voltage or temperature.

  

FEATURES

  • SHELF OR PLUG-BOARD MOUNT
  • HIGH OVERLOAD CAPACITY
  • BUILT-IN SURGE PROTECTION
  • CONSTANT FREQUENCY
  • CONFORMS TO AAR RECOMMENDED PRACTICES

 

  Click here for Printable Specifications Sheet.


SPECIFICATIONS

INPUT

MODELS 

SQ300-60

SQ300-100 

SQ300-250
INPUT 12 VDC +/- 20%
12VDC +/- 20%
12 VDC +/- 20%

Output

Frequency

60HZ

 100HZ 250HZ

 

OUTPUT

Voltage:
120 VAC +/- 5% Isolated and Floating. Proportional to Input Voltage
Current:
2.5 Amps
Power:
300VA
Waveform:
Square wave
Efficiency:
90% typical at full load
Connection:
AAR terminals

 

PROTECTION CIRCUITS

Input:
Fuse with surge arrestor and lightning protection
Overload:
Overload fault current, electronically limited to protect load.
Thermal Protection:
Internal temperature sensor prevents heat damage.

 

 

MECHANICAL SPECIFICATIONS

Dimensions:
High-strength shelf-mount chassis with optional plug-board mount, 5”W X 8”H X 9.5”D
Weight:
25 lbs

 

ENVIRONMENT SPECIFICATIONS

Operating Temperature:
-40 to 71 C.
Humidity:
Up to 95% non-condensing

 

OPTIONS

PB

Standard Plug-Board mount with two tabs at top and bottom


Headquarters:
80 Cabot Ct.,
Hauppauge, NY 11788
TEL (800) 874-6727 - (631) 435-0410
FAX (631) 951-4341


West Coast:
2363 Teller Road / Suite 108,
Newbury Park, CA 91320
TEL (800) 456-2006 - (805) 375-7046
FAX (805) 498-2147

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