SIEMENS QFM2160 Output module

Product Detailed Description

Siemens time relays typically fall into several categories, including:

• SIRIUS 3RP25/3RP20 Series (Industrial Relays): These are versatile electronic time relays for a wide range of industrial control tasks. They offer various timing functions, adjustable time ranges, and different terminal technologies (screw-type or spring-type). They are often characterized by their compact design and ease of use.

• LOGO! Logic Modules (with integrated time functions): While primarily logic modules, LOGO! devices include extensive integrated time functions (e.g., on/off delay, impulse relay, flashing light) that can be easily configured, making them a type of advanced time relay solution.

• SENTRON (Power Distribution Relays): Some relays within the SENTRON family, particularly those for specific monitoring or control tasks, might incorporate time-delay features.

Focusing on the most common dedicated industrial time relays (like the SIRIUS 3RP25/3RP20 series):

• Functionality:

• On-delay (E): Output activates after a set time when the input is applied.

• Off-delay (R): Output deactivates after a set time when the input is removed.

• On-delay with control signal (RW): Output activates after a set time as long as the control signal is present.

• Pulse shaping (Ws): Generates a pulse of a set duration.

• Flashing (B): Alternates output on/off at a set frequency.

• Star-delta start (SD): Specific for motor starting sequences.

• Accumulative/retentive delay (EL): Accumulates time and retains state during power interruptions.

• Timing Functions: Offer a variety of timing functions such as:

• Control: Activated by applying or removing a control voltage to designated terminals.

• Output: Provides relay contacts (NO/NC) to control external circuits.

• Features:

• Compact Design: Space-saving for mounting in control cabinets.

• DIN Rail Mounting: Easy and secure installation on standard 35 mm DIN rails.

• Wide Time Ranges: Adjustable over broad ranges, from milliseconds to hours or even days.

• Multi-Voltage Capability: Many models accept a wide range of supply voltages (AC/DC).

• LED Status Indicators: Provide visual feedback on power, timing, and output status.

• Screw or Spring-type Terminals: Offer flexibility in wiring connections.

• Robust Construction: Designed for reliable operation in industrial environments.

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