TB Series Mechanical Timer Switch

TB17-mechanical-timer-switch.webp
TB178-mechanical-timer-switch.webp
TB330-mechanical-timer-switch.webp
TB35-mechanical-timer-switch.webp
TB37-mechanical-timer-switch.webp
TB388-mechanical-timer-switch.webp

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
TB178AC 110V/220V/240V, 50-60HzAC220V 16A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC30 minutes24h123 x 72 x 51mm
TB330AC 110V/240V, 50-60HzAC250V 30A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC30 minutes24h188 x 130 x 55mm
TB35AC 110V/240VAC220V 20A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC15 minutes24h152 x 110 x 46mm
TB37AC 110V/220V/240V, 50-60HzAC220V 16A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC15 minutes24h72 x 72 x 53mm
TB388AC 110V/240V, 50-60HzAC220V 20A; lamp 1000W; resistive 16A/250VAC; inductive 3A/250VAC15 minutes24h112 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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