TB Series Mechanical Timer Switch

TB17 Mechanical Timer Switch
TB178 Mechanical Timer Switch
TB330 Mechanical Timer Switch
TB35 Mechanical Timer Switch
TB37 Mechanical Timer Switch
TB388 Mechanical Timer Switch

Description

The TB Series mechanical timer switches are 24-hour analog timer switches for scheduled load control. The series covers several enclosure styles and installation formats, with model-specific ratings and dimensions for lighting and general electrical load timing applications.

Model Parameters

ModelOperating voltageContact capacity / loadMinimum setting unitFull timing rangeDimension
TB17AC 110V/220V/240V, 50-60HzAC220V 16A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC30 minutes24h123 x 72 x 51mm
TB178
TB330AC 110V/240V, 50-60HzAC250V 30A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC188 x 130 x 55mm
TB35AC 110V/240VAC220V 20A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC15 minutes152 x 110 x 46mm
TB37AC 110V/220V/240V, 50-60HzAC220V 16A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC72 x 72 x 53mm
TB388AC 110V/240V, 50-60HzAC220V 20A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC112 x 83.5 x 51mm

Common Technical Notes

  • All listed models use a 24-hour timing range.
  • Accuracy is listed as <=2S/25°C.
  • Working reserve time is listed as 24 hours charged can last 150 hours.
  • Contact resistance is listed as <=50MΩ and insulation resistance as >=100MΩ.

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