TB models (20 Nm torque)

This quarter turn actuator may be directly coupled to either a 19 mm round or 16 mm square jack shaft or remotely mounted using an adaptor kit.

All motors are bi-directional under power and, in the case of models equipped with the Enerdrive System, under failsafe conditions. The stroke may be limited to less than 90° mechanically in digital models and electronically in Multi signal models.

The TB models are available with programable, multi signal, or on/off floating control.
 Applications
  • Medium air handler dampers

  • 1/4 turn valves
    •  General Specifications
    Power supply:
    24VAC/30VDC, 220-240VAC or 24VAC/220-240VAC depending upon the model

    Power consumption:
    Peak at start-up:
    8VA to 40VA at 26VAC depending upon the model
    10VA to 30VA at line voltage depending upon the model
    Operating at Full Load:
    8VA to 15VA at 26VAC depending upon the model
    10VA at line voltage depending upon the model

    Wire size & length:
    0.8 mm2 minimum, 7.6 m. maximum per actuator

    Electrical connections:
    Two 22.2 mm knock outs, screw terminals

    Control signals:
    Digital motors (TBT):
    2 wire or 3 wire 2 position and/or 3 wire or 4 wire 3 point floating depending upon the model
    Multi signal (TBM):
    ANALOGUE: A) 2-10VDC; or B) May be externally wired with a 500 Ohm resistor
    which is supplied for 4-20mA, zero & span adjustable
    PULSE WIDTH MODULATION: Time base of 0.1 - 5 seconds/20mS resolution or 0.1 - 25 seconds/100mS resolution selected by dip switch position
    SWITCH 24VAC: triac or dry contact, 40mA Max. switching current
    SWITCH COMMON: NPN transistor, SCR, triac or dry contact 75mA max. switching current
    DIGITAL: 3 wire 2 position or 4 wire 3 point floating
    Torque:
    20 Nm at rated voltage.

    Direction & time of rotation:
    Reversible, 60-85 Sec. / 0-20 Nm

    Ambient temperature:
    -18°C to +50°C

    Feedback potentiometer:
    In Multi signal (TBM): 4-20mA output (May be wired for a 2-10VDC signal)

    Fail-safe (Enerdrive) rating:
    Models ending in 60 A, 80 A or 60 NA: 20 Nm

    Enerdrive response time:
    60-85 seconds closure through 900, 0 - 20 Nm

    Auxiliary switches:
    Models ending in 21 A or 80 A: 2 mechanical switches, fixed at 10° & 80°

    Auxiliary switch rating:
    1 Amp resistive, 24VAC or 5 Amp resistive, 250VAC depending upon the model

    Enclosure:
    UL recognized, QMFZ2, fire rated 94V-0, IP42