Thiết bị truyền động hạt nhân ST Series (Weatherproof Quarter-turn Actuators), ĐẠI LÝ BERNARD CONTROLS VIỆT NAM

Thiết bị truyền động hạt nhân ST Series ( Qualified multi-turn actuators for inside containment )

Model: 

ST6, ST6L, ST6S

ST14, ST14L, ST14S

ST30, ST30S

ST70, ST175, ST220

Thông số kỹ thuật:

Type of service:

• ON/OFF or Modulating class III

Casing :

•  Cast aluminium.
•  Casings are watertight to IP68 & NEMA 6 and can withstand pressure of 10 metres for 96 hours.

Motor technology:

• Totally-enclosed, squirrel cage 3-phase or 1-phase motor, class F insulation with INTEGRAL+ thermal overload protection. Motors easy to remove with sealed ball bearings fitted at front and rear.

Motor duty rating:

•  S4 motor service (intermittent service on start-up) to IEC 60034-1 .
•  S4 - 40 % for ON/OFF operation - up to 360 starts per hour.
•  S4 - 50 % for Modulating class III - up to 1200 starts per hour.

Ambient operating temperature:

•  Standard version: -20 °C ... +70 °C ( -4 °F ...+158 °F)
•  Low temperature version: -40 °C ... +70 °C ( -40 °F ... +158 °F)
•  High temperature version: +0 °C ... +100 °C (+32 °F ... +194 °F)

Vibration resistance:

• See qualification description.

Lubrication :

• ST actuators are lubricated for the product lifetime and do not require any special service.

Manual control:

•  By handwheel which does not rotate when electrical operation system in service.
•  Switch between manual and electrical operation automatically without clutch release lever (except for ST6 models). Electrical control has always priority.

Power supply:

•  single-phase or 3-phase, DC,
•  up to 690 V (depending on version),
•  50 or 60 Hz, etc.

Output flange :

• ST actuator flanges comply with ISO 5210.
• See «Mounting flange specifications» section for further details.

Conduit entries Standard configuration:

• 2 x M20. External Earth Connection: Mono wire. Max. section 6 mm2
• Other cable entry configuration options available on request.

Travel limit systems:

•  Position: movement reading on output shaft.
•  Range: 1.5 to 1080 turns of the output shaft.
•  2 contacts as standard (up to 8 as option); 16A to 250V under resistive load

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