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RT20/RT31, Multifunction timers

RT20/RT31, Multifunction timers

Product catalog summary

Overview: The document provides technical specifications and operational details for the C-mac multifunction timers, specifically the RT20 and RT31 models. These timers are designed for various timing functions and are compliant with EMC and safety regulations.

RT20 Specifications:

Functions: Includes delay on release, delay on operate, interval timer, and symmetrical recycler.
Time Ranges: Offers 16 time ranges/combinations.
Relay Output: Available in 1- or 2-pole configurations.
Supply Voltage: Options include 24 V AC/DC, 115 VAC, and 230 VAC with a tolerance of +/- 10%.
Power Consumption: Maximum of 2 W.
Operating Temperature: -20°C to +60°C.
Humidity: 0 - 90% RH, non-condensing.
Indicators: Green LED for supply voltage, Red LED for relay activity.
Time Adjustment: 2.5 - 100% of the range with 5% accuracy and 0.1% repeatability.
Max Load: 1-pole: 8 A - 250 VAC, 2-pole: 5 A - 250 VAC, ohmic load.
Regulations: Complies with EN 50 081-1, EN 50 082-2, and EN 60 730.

RT31 Specifications:

Functions: Asymmetrical recycler with 4 different functions.
Time Combinations: 16 different combinations programmable via a rotary switch.
Supply Voltage: AC: 24, 115, and 230 VAC +/- 10%; DC: 24 VAC/DC +/- 10%.
Supply Frequency: 40-70 Hz.
Isolation Voltage: 3.75 kV between supply, internal, and output.
Power Consumption: 2.5 VA.
Operating Temperature: -20°C to +60°C.
Humidity: 0 - 90% RH, non-condensing.
Indicators: Green LED for supply voltage, Red LED for relay activity.
Time Adjustment: Two potentiometers for separate pause and pulse time adjustments, 2.5 - 100% of the range.
Max Load: 1-pole: 8 A - 250 VAC, 2-pole: 5 A - 250 VAC, ohmic load.
Regulations: Complies with EN 50 081-1, EN 50 082-2, and EN 60 730.

Functional Diagrams and Connections: The document includes diagrams illustrating the functional operations of the timers and their connection setups. Specific pin configurations are provided for different operational modes.

Ordering Information: Detailed ordering guides are provided for both RT20 and RT31 models, including supply voltage options and time range variants. An example is given for clarity.

Additional Features: The RT31 model is available with external potentiometer adjustments upon request, designated as RT31E, and is only available with a 1-pole relay output.

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