The Siemens 3RP1513-1AP308K is an on-delay electronic timer from the Siemens 3RP series, designed for industrial automation, machine-control panels and electrical control systems. It features 1 C/O changeover contact and a 5–100 second adjustable timing range, making it suitable for delayed switching, machine sequencing, motor-control circuits and process-control applications. Siemens product information identifies the 3RP1513-1AP30 configuration as an on-delay timer with 1 changeover contact, LED indication and a 5–100 second timing range.
The 3RP1513-1AP308K belongs to the Siemens SIRIUS 3RP15 electronic timer family, which is used in control, starting and protective circuits where time delays are required. The timer is suitable for conventional relay and contactor-based control systems as well as industrial automation panels.
Typical applications include:
Industrial automation
Machine-control panels
Motor-control systems
Conveyor systems
Pump-control circuits
Production machinery
Packaging equipment
Process automation
Relay and contactor control
OEM machinery
The primary function of the 3RP1513-1AP308K is on-delay timing.
When the control voltage is applied, the timer starts its timing cycle. After the selected delay has elapsed, the output contact changes to its operated state.
A simplified sequence is:
Control Signal ON → Preset Time Delay → Output Operates
This makes it suitable when one machine function must start only after another electrical or mechanical condition has remained active for a defined period.
Typical applications include:
Delayed motor starting
Delayed contactor energization
Conveyor sequencing
Pump-start delay
Fan activation delay
Machine sequence control
Process timing
Auxiliary switching
The 3RP1513-1AP308K provides a 5–100 second timing range. This makes it suitable for a variety of industrial timing requirements where a delay of several seconds to approximately one minute and forty seconds is needed.
The required time setting can be selected according to the machine sequence and process requirements.
The timer is specified with 1 C/O changeover contact.
A changeover contact provides a common connection with normally open and normally closed contact paths, allowing the timer output to be used flexibly in different control circuits.
Typical uses include:
Contactor control
Relay logic
PLC inputs
Electrical interlocking
Status signalling
Sequence control
Auxiliary switching
Control-system feedback
The connected load should always remain within the applicable contact ratings.
The 3RP1513-1AP308K configuration includes LED indication, providing visual feedback of the timer's operating state. Siemens product data identifies LED indication for this timer configuration.
This can be useful during:
Commissioning
Troubleshooting
Preventive maintenance
Control-panel inspection
Machine servicing
The 3RP1513-1AP308K is specified for 24 V AC, 200–240 V AC and 24 V DC control supply configurations, with AC operation at 50/60 Hz.
The control supply must be matched to the exact product marking and electrical installation requirements before energizing the timer.
The 3RP1513-1AP30 configuration uses screw terminals, providing a conventional connection method for industrial electrical control panels. Siemens documentation for the product family identifies screw-terminal construction.
This supports practical wiring, commissioning and maintenance when installed according to the manufacturer's requirements.
The 3RP1513-1AP308K can be used wherever a controlled on-delay is required in an industrial sequence.
The timer can introduce a controlled delay before energizing a motor contactor or auxiliary control device.
It can help coordinate delayed startup between conveyor sections or different machine stages.
The timer can provide delayed activation where pump operation needs to follow another control event.
It can introduce a delay before activating ventilation equipment.
The timer can coordinate different stages of an automated machine cycle.
It can provide controlled timing between different production or process operations.
The 3RP1513-1AP308K is suitable for OEM machine manufacturers, electrical panel builders, automation integrators and industrial maintenance professionals.
Its combination of on-delay operation, 1 C/O contact, 5–100 second timing range, LED indication and screw terminals makes it a practical solution for conventional industrial control circuits.
Siemens SIRIUS 3RP electronic timer
Article number 3RP1513-1AP308K
On-delay timing function
1 C/O changeover contact
5–100 second adjustable timing range
LED indication
Screw terminals
24 V AC control supply
200–240 V AC control supply
24 V DC control supply
50/60 Hz AC operation
Suitable for industrial automation
Suitable for machine-control panels
Suitable for relay and contactor control
Suitable for OEM machinery
On-delay operation: Delays output switching until the selected time has elapsed.
5–100 second range: Suitable for a wide range of machine and process timing requirements.
1 C/O contact: Provides flexible switching options.
LED indication: Helps technicians identify timer operation during commissioning and maintenance.
AC/DC control options: Supports the specified AC and DC control supplies.
Screw terminals: Provides a familiar industrial wiring method.
Sequence control: Helps coordinate different machine and process operations.
Compact industrial solution: Suitable for control panels and automation systems.
The Siemens 3RP1513-1AP308K provides a practical on-delay timing solution for industrial automation and machine-control applications.
Its 5–100 second timing range, 1 C/O changeover contact, LED indication and screw-terminal design make it suitable for delayed motor starting, conveyor sequencing, pump control, machine automation and auxiliary switching applications.
For OEMs, panel builders and automation integrators, it can be incorporated with Siemens contactors, relays, PLCs and other industrial control components.
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Major delivery locations include:
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And other major cities across India
It is a Siemens 3RP on-delay electronic timer with 1 C/O changeover contact.
The timer provides an adjustable range of 5–100 seconds.
On-delay means the timer waits for the selected period after the control signal is applied before changing the output to its operated state.
It has 1 C/O changeover contact.
Yes. The timer configuration includes LED indication.
The 3RP1513-1AP308K supports 24 V AC, 200–240 V AC and 24 V DC control supply configurations.
Yes. The corresponding 3RP1513-1AP30 configuration uses screw terminals.
It can be used in motor-control panels, pumps, fans, conveyors, production machinery, packaging equipment and process-control systems.
Yes. Its C/O contact can be incorporated into a suitable contactor-control circuit, provided the electrical ratings are compatible.
You can explore the Siemens product range at SB Smart for Siemens electronic timers, contactors, relays and other industrial automation products.
| Specification | Details |
|---|---|
| Product Name | Electronic On-Delay Timer Relay |
| Manufacturer | Siemens |
| Series | SIRIUS 3RP |
| Model Number | 3RP1513-1AP308K |
| SKU | 3RP1513-1AP308K |
| Product Type | On-Delay Timer |
| Timing Function | On-Delay |
| Contact Configuration | 1 Changeover Contact (1 C/O) |
| Time Range | 5 – 100 Seconds |
| Control Supply Voltage | 24V DC / 24–200-240V AC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC |
| Repeat Accuracy | < ±1% |
| Setting Accuracy | < ±5% |
| Thermal Current | 5 A |
| Contact Material | AgSnO₂ (Silver Tin Oxide) |
| Mounting Type | DIN Rail & Screw Mounting |
| DIN Rail Size | 35 mm Standard Rail |
| Housing Width | 22.5 mm |
| Terminal Type | Screw Terminals |
| Protection Rating | IP20 |
| Status Indication | LED Indicators |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Mechanical Endurance | Up to 30 Million Operations |
| Application | Delayed Switching & Automation Control |
| Product Family | Siemens SIRIUS Timing Relays |
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