PHOTOTRANSISTOR SENSOR
SOLID STATE PHOTOCONTROLS
"Optimum Performance Without Operational Drift"
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| DESCRIPTION
ST7700 Series photocontrols are constructed with costs effective materials and are designed specifically to replace mechanical photocontrols. The ST7700 Series can be expected to have better On to Off ratios, a higher level of reliability, and longer life than mechanical designs. ST7700 Series photocontrols are not recommended for present users of Sun-Tech S Series or P Series designs. |
FEATURES
* Meets or exceeds ANSI C136.10.
* Heavy Duty Relay.
* Average 3:1 On to Off ratio.
* Non-chatter load break.
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BENEFITS
* Industry Standard Operating Levels.
* Extended relay life from non-chatter load break.
* Extended photocell life from low voltage DC.
* Reduced maintenance costs.
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| MECHANICAL SPECIFICATIONS
Housing: UV stabilized, impact resistant polypropylene.
Base: High temperature ABS.
Contact Blades: Solid brass, three prong, locking type.
Gasket: Cross linked polyethylene.
Packaging: Individual units are sealed in water resistant plastic.
Weight: B Size: 16" x 16" x 12" per 100 unit carton.
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| OPERATING SPECIFICATIONS
Operating Voltage:
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Model
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Voltage
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Color
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ST7760
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105 - 130
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Gray
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ST7790B
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105 - 305
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Blue
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ST7772
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195 - 305
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Maroon
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ST7794
|
420 - 530
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Yellow
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Load Rating:
1000 Watt tungsten, 1800 VA
Life at rated load:
5,000 Operations (13.7 Years)
Power Consumption:
1.0 watts average @ 120 volts
1.6 watts average @ 208 volts
1.9 watts average @ 240 volts
2.1 watts average @ 277 volts
Standard Surge Protections:
- 160 Joule MOV.
Operating Light Levels:
+/- 0.25 fc. from specified turn-on level.
3:1 Average turn-on to turn-off ratio.
Photosensor:
- Conformally coated cadmium sulfide.
- Photo transistor.
Dielectric Strength:
5,000 Volts between any current carrying part.
Ambient Temperature Range:
-40*C to +70*C (-40*F to + 158*F).
Moisture Resistance:
100% RH.
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CROSS REFERENCE
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Sun - Tech
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Fisher Pierce
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ST7760
|
7760
|
|
ST7760-EPS
|
7760-EPS
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|
ST7760-MSS-TD
|
7760-MSS-TD
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|
ST7790B
|
7790Bv
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ST7790B-EPS
|
7790B-EPS
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ST7772-SSS
|
7772-SSS
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ST7794-EPS
|
7794-EPS
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|
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Model #
|
Turn-On
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Photosensor
|
Time Delay
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Surge Protection
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| ST7760 (105 - 130V) |
S 1.0 fc. On
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S Cadmium Sulfide |
_ No Delay *
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S Surge Protected |
| ST7790B (105 - 305V) |
|
or |
TD 3-5 Sec.
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E 160J MOV
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| ST7772 (195 - 305V) |
|
Phototransistor |
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M 160J MOV
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| ST7794 (420 - 530V) |
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P Phototransistor |
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|
* No Letter
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PX - standard grade electronics
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