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Rectangular panel-mount timer with backlit LCD and four pins

BAOMAIN CN101A 12V Input 16A 28-Program Electrical Timer Switch

SKU CH-3SDS-5Q1AB

Digital timer switch with 28 programmable on/off settings, 12V DC/AC input and 16A 200-250V AC output for lighting and equipment control

  • 12V DC/AC control input for safe low-voltage operation
  • 28 daily or weekly on/off programs automate equipment
  • Backlit LCD shows status clearly in any light
  • 16A relay switches 200-250V AC loads directly
  • CR2032 backup keeps schedules for three years

Precise Scheduling for 12V Systems

The BAOMAIN CN101A is a digital timer switch that accepts 12V DC or AC input and controls loads up to 200-250V AC at 16A. It provides 28 programmable on/off settings for daily or weekly automation of lighting and equipment. Panel-mount design with 3.2mm holes suits control cabinets and generator panels.

Thermals Noise and Power Draw

The unit operates from -20°C to 55°C with a time accuracy of ±1 second per day at 25°C. Power consumption is rated at 16(8)A 250V AC for the switched load. An internal CR2032 battery maintains schedules for up to three years during power loss. No moving parts or fans produce audible noise.

28-Program Capacity Decides Fit

This timer suits installations needing up to 28 distinct switching events per week with a minimum interval of one minute. Builders requiring more than 28 programs or a different input voltage range should select another model.

Highlights

  • 12V DC/AC control input for safe low-voltage operation
  • 28 daily or weekly on/off programs automate equipment
  • Backlit LCD shows status clearly in any light
  • 16A relay switches 200-250V AC loads directly
  • CR2032 backup keeps schedules for three years

Specifications

BrandBaomain

Questions about this item

How do I wire the 12 V input and the 200-250 V load terminals on the CN101A?

Apply 12 V DC or AC to the two control pins; the switched load connects to the output terminals rated for 200-250 V AC at 16 A. A common error is feeding mains voltage into the 12 V control side, which will damage the timer.

When will the internal CR2032 battery need replacing and what happens then?

The CR2032 backup cell is rated for about three years of data retention; when it weakens, programmed schedules may be lost after a power cut, so swap the coin cell before that point.

What is the first limit reached during continuous 16 A switching?

The relay contacts are rated for 16 A resistive (8 A inductive) at 250 V AC; sustained loads at the full 16 A will hit the contact-current limit before thermal or timing constraints become an issue.

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