TOA

TOA AT-4120 100V Line Volume Attenuator 120W, 8 Step, 24V Override Relay, with Surface Back Box

Name: TOA AT-4120 100V Line Volume Attenuator 120W, 8 Step, 24V Override Relay, with Surface Back Box
Brand: TOA

The TOA AT-4120 is a 120W rotary volume attenuator for 100V line speaker systems, supplied with a surface back box. It gives 8 steps of level control down to off and includes a 24V DC override relay, so emergency or priority announcements can bypass the local volume setting. Typical uses are offices, classrooms, meeting rooms, restaurants and retail areas where each room needs its own background music level. 120WCapacity8 stepsAttenuation24V DCOverride relay100VLine Override needs 4 wiresThe 24V override relay and red LED only work on a 4-wire (3-wire signal plus override) connection. On a simple 2-wire run the unit works as a plain volume control and emergency calls follow the knob setting. Features120W input capacity on a 100V line8-step attenuation: 0, -3, -6, -9, -12, -15, -18 dB and off24V DC override relay for emergency paging (4-wire connection)Red LED shows when override is activeLarge control knobClip-on face plateScrew terminal block accepts 22 to 14 AWG cableBack box (85.5 x 85.5 x 60 mm) and two plate fixing screws included SpecificationsInput capacity120WAttenuation8 steps: 0, -3, -6, -9, -12, -15, -18 dB, offOverride voltage24V DC, 11 mA (4-wire connection only)Override indicatorRed LED (4-wire connection only)Terminals5 x screw terminalsUsable cable22 to 14 AWGFinishKnob and cover: ABS resin, white (RAL 9016 or equivalent); plate: surface-treated steelBack box (supplied)85.5 x 85.5 x 60 mm (W x H x D)Dimensions (W x H x D)86 x 86 x 51 mmWeight0.48 kgShow more

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