H3CA-A – Multifunction Digital Timer 24–240V AC/DC
Description
The H3CA-A is a versatile multifunction digital timer from Omron designed for precision timing control in industrial automation and process systems. It supports both AC and DC voltages (24–240V) and features multiple timing modes and ranges, allowing flexible integration into a wide variety of machinery and control circuits.
Known for its reliability and ease of configuration, the H3CA-A combines a clear analog-style display with modern electronic accuracy, making it ideal for use in manufacturing lines, HVAC systems, conveyors, and control panels.
Technical Specifications
- Part Number: H3CA-A
- Type: Multifunction analog-style digital timer
- Power Supply: 24–240V AC (50/60Hz) / 24–240V DC
- Power Consumption: Approx. 3VA (AC) / 2W (DC)
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Time Ranges:
- 0.1 s to 999 h (8 selectable ranges)
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Operation Modes:
- ON-delay, Flicker (ON start), Flicker (OFF start), Interval, One-shot, and Signal ON/OFF delay
- Display Type: Analog-style dial with pointer and digital indicators
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Control Output:
- 2 × SPDT (DPDT equivalent) relay contacts
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Contact Ratings:
- 5A at 250V AC (resistive load) or 30V DC
- Accuracy: ±0.2% of full scale ±10 ms
- Reset Time: 0.1 s max (when reset signal is applied)
- Repeat Accuracy: ±0.2% of full scale
- Mounting Type: Panel mount (with retaining clips)
- Panel Cutout: 45 × 45 mm (DIN standard)
- Operating Temperature: –10°C to +55°C
- Humidity Range: 35–85% RH (non-condensing)
- Weight: Approx. 200 g
Interchangeable / Related Part Numbers
- H3CA-A-AC100-240 (AC version only)
- H3CA-A-DC12-48 (low-voltage DC variant)
- H3CA-8 (plug-in socket version)
- H3CA-8H (high-accuracy industrial variant)
✅ Confirmed Compatibility
- ✔ Industrial control panels and relay logic systems
- ✔ Conveyor and packaging automation
- ✔ Machinery requiring precise timing delay or interval control
- ✔ HVAC, lighting, and pump sequencing systems
- ✔ Process timing control in OEM and retrofit equipment
☑️ Key Features
- ☑️ Wide operating voltage range (24–240V AC/DC) for flexible installation
- ☑️ Multiple timing functions selectable via front dial for universal use
- ☑️ Analog-style dial display for easy time setting and monitoring
- ☑️ DPDT relay output ensures compatibility with most control loads
- ☑️ High timing accuracy and excellent repeatability
- ☑️ Compact 45 × 45 mm DIN panel design for easy integration
- ☑️ Long electrical life and robust mechanical design for industrial reliability
