Counter/Timer/Tachometer · 1/16 DIN 48 x 48 mm · Dual relay outputs · Delta Electronics CTA4101D

What this product is for

The CTA4101D is a panel-mount counter, timer, and tachometer for industrial automation systems that need one compact device for pulse counting, event timing, and speed indication. It fits a 1/16 DIN 48 x 48 mm face size, which is approximately 1.89 x 1.89 in.

Use for

Use it for batch counting, total counting, cut-to-length equipment, conveyor monitoring, packaging machines, rotation speed indication, and process timing where relay outputs are needed for control signalling. RS-485 communication can help when integrating the unit into a monitored control panel or automation network.

Avoid for

Avoid using it as a PLC replacement, safety controller, or heavy power switching device. It is intended for panel instrumentation and control signalling, not for directly switching large motor loads without suitable interposing control hardware.

Best for

Best for OEM panels, retrofit machinery, and industrial control cabinets where panel space is limited and the application needs timer, counter, and tachometer functions in one 1/16 DIN instrument.

Installed in

Typically installed in machine panels, packaging equipment, production lines, test stands, and process control enclosures. The 48 x 48 mm cutout class is commonly selected where standard DIN panel instruments are already in use.

Why this product exists

This model combines three common panel functions in one device to reduce panel space, simplify wiring, and provide relay-based output control from pulse or timing inputs. For many machine builders, that means fewer separate instruments on the door.

Compared with similar products

Compared with a basic timer, this unit also handles counting and tachometer functions. Compared with a single-output counter, this version is suited to applications needing dual relay outputs plus communication. As typical guidance, a combined timer/counter instrument can reduce panel space and simplify replacement stocking, but actual suitability depends on I/O requirements, control logic, and local code.

Specifications

• Product type: Counter/Timer/Tachometer
• Series: CTA4
• Panel size: 48 x 48 mm (approximately 1.89 x 1.89 in), 1/16 DIN
• Functions: Timer, counter, tachometer, and timer + counter mixed mode
• Supply voltage: 24VDC
• Display: Double-line 6-digit LCD
• Output 1: Relay and transistor outputs operating concurrently
• Output 2: Relay output
• Relay rating: Up to 250VAC, 5A resistive load
• Input types: NPN non-voltage input or PNP voltage input
• Counting speed: 1, 30, 200, 1K, 5K, 10K cps, maximum 10K cps
• Communication: RS-485
• Power consumption: Less than 10VA
• External power supply: 12VDC plus or minus 10%, 100 mA
• Ambient operating temperature: 0 degC to 50 degC (32 degF to 122 degF)
• Storage temperature: -20 degC to 65 degC (-4 degF to 149 degF)
• Humidity: 35% to 85% RH, non-condensing
• Altitude: 2000 m or less (approximately 6562 ft)

Typical buying note: for pulse-based machine feedback, confirm sensor type, required counting speed, and whether relay outputs are being used only for control signalling. Actual performance depends on wiring, noise conditions, input device compatibility, and panel design.