PTC-14-A-Srs

Supported Applications

The Omega PTC-14-A Compact Programmable Timer is a multifunction digital timer designed for controlling equipment, machinery, systems, or processes in industrial applications. The series features a 4-digit red LED display and supports five programmable timing modes to manage operational sequences.

Operating Conditions & Performance

The PTC-14-A operates within an ambient temperature range of 0°C to +50°C (32°F to 122°F) with a storage temperature capability from -20°C to +60°C (-4°F to 140°F). The unit is rated for installation heights up to 2000m and carries an IP65 protection class. Timing accuracy is specified as ±3sec/24hours, while the data sheet also lists a precision of ±0.1% of full scale.

Power consumption (burden) remains below 3VA across supported supply voltages of 24Vac/dc or 100-240Vac at 50/60Hz. The device utilizes EEPROM for data retention with a minimum lifespan of 10 years and features an approximate reset time of 100ms.

Timing Ranges

• 0 to 99.99sec (also listed as 0-99.99sec)
• 0.01 to 99.99sec
• 00:01 to 99:59min
• 00:01 to 99:59hrs
• 1 to 9999hrs (also listed as 0-9999hrs)

Configuration Options

The series is configured for panel mounting with a housing made of self-extinguishing plastics meeting UL 94 V0 standards. The overall dimensions are documented as 78mm wide x 35mm high x 64mm deep in the manual, while the data sheet specifies an outline of 78mm x 55mm and requires a panel cutout of 71mm x 29mm (-0.0/+0.5) with 95mm x 41mm clearance for clips.

Outputs & Electrical

The timer provides two relay outputs:

• Out1 (R1): Single pole changeover contact rated at 16A, 250Vac/30Vdc (resistive).
• Out2 (R2): Single pole N/O contact rated at 5A, 250Vac/30Vdc (resistive).

Contact life is specified as 1,000,000 mechanical operations and 100,000 electrical operations. Electrical connections are made via plug-in connection terminals or 2mm² screw type terminals depending on the documentation source.

Timing Modes

The series supports five distinct timing functions for Out1:

• Delay on Energise (On Delay)
• Interval
• Immediate Cycling with Variable On and Off Times
• Delayed Cycling with Variable On and Off Times
• Single Delayed Cycle with Variable On and Off Times

Out2 can be configured as Disabled, Instantaneous Contact, or to operate the same timing function as Out1 (with independent set time), in advance of Out1 by an independent set time, or energized when a buzzer sounds.

Certifications & Safety

The PTC-14-A is CE and RoHS compliant. It meets Directive LV 2014/35/EU (EN 60730-1, EN 60730-2-7, EN 61812-1, UL 508) and Directive EMC 2014/30/EU standards including EN 55011 class B. Users are advised not to use the timer in locations with corrosive or flammable gases.

Key Product Differences

The series is available in two primary power supply configurations:

• PTC-14-LV-A: Multifunction Digital Timer powered by 24Vac/dc.
• PTC-14-A: Multifunction Digital Timer powered by 100-240Vac.

The model number guide follows the format PTC-14-<VOLTAGE>-A. Both variants share identical timing ranges, output ratings, and environmental specifications as defined in the series documentation.