The Siemens 3RP1505-1AW308K Multi-Function Electronic Timer Relay is a highly versatile timing solution designed for modern industrial automation systems, control panels, machinery, motor control circuits, and process automation applications. As part of the globally trusted Siemens SIRIUS 3RP Series, the 3RP1505-1AW308K combines multiple timing functions, universal voltage compatibility, compact construction, and exceptional reliability in a single device. This flexibility makes it one of the most preferred timer relays for OEMs, panel builders, automation engineers, and maintenance professionals.
Unlike standard timing relays that perform only one function, the Siemens 3RP1505-1AW308K offers 8 integrated timing functions within a single relay. These include ON-delay, OFF-delay, ON+OFF delay, cyclic operation, pulse generation, pulse shaping, break contact timing, and additive ON-delay functions. This multifunction capability allows users to replace multiple timer variants with a single product, simplifying inventory management and reducing system complexity.
One of the most significant advantages of the 3RP1505-1AW308K Electronic Timer Relay is its exceptionally wide timing range. The relay supports 15 selectable time ranges from 0.05 seconds up to 100 hours, enabling precise timing control for both short-duration switching tasks and long-cycle industrial processes. Whether controlling machine startup sequences, conveyor systems, lighting controls, pump operations, ventilation systems, or process automation equipment, this timer relay provides the flexibility needed for diverse industrial applications.
The Siemens 3RP1505-1AW308K features 1 Changeover Contact (1 C/O), offering flexible switching for both normally open and normally closed circuits. This contact arrangement simplifies wiring and enables integration into a wide variety of automation systems. The relay can be used for controlling motors, contactors, pumps, fans, compressors, production machinery, and other industrial equipment requiring accurate timing control.
A key benefit of this model is its universal control supply voltage range of 24–240V AC/DC, allowing seamless integration into different electrical infrastructures worldwide. By supporting a wide voltage range, the 3RP1505-1AW308K reduces the need for multiple timer variants and simplifies spare parts management for maintenance teams and industrial facilities.
Built using Siemens' advanced solid-state timing technology, the relay delivers highly accurate and repeatable timing performance. Siemens timing relays are known for excellent reliability, repeat accuracy, and operational stability even in demanding industrial environments. This ensures consistent switching behavior and dependable performance throughout the product lifecycle.
The compact 22.5 mm wide housing allows installation in space-constrained control panels and switchboards. The relay supports both screw mounting and standard 35 mm DIN rail mounting, making installation quick and convenient for control panel manufacturers and system integrators. Its slim profile helps maximize panel space while maintaining easy access for wiring and servicing.
For enhanced usability, the Siemens SIRIUS 3RP1505-1AW308K includes function selection and time adjustment controls that allow users to easily configure timing parameters according to application requirements. Its high electromagnetic compatibility (EMC) performance ensures reliable operation even in electrically noisy industrial environments.
The 3RP1505-1AW308K Multi-Function Timer Relay is widely used across manufacturing facilities, packaging industries, water treatment plants, HVAC systems, material handling operations, food processing units, process automation systems, and infrastructure projects. Its multifunction design reduces hardware requirements while improving flexibility, making it a cost-effective solution for industrial automation projects.
At SBsmart.in, we supply genuine Siemens industrial automation products trusted by engineers and industrial professionals worldwide. When you purchase the Siemens 3RP1505-1AW308K Multi-Function Electronic Timer Relay, you receive an authentic Siemens product backed by world-class engineering, proven reliability, and long-term performance.
Whether you are designing a new control panel, upgrading an automation system, or replacing an existing timer relay, the Siemens 3RP1505-1AW308K delivers the versatility, precision, and durability required for modern industrial automation applications.
| Specification | Details |
|---|---|
| Product Name | Multi-Function Electronic Timer Relay |
| Manufacturer | Siemens |
| Brand | Siemens |
| Series | SIRIUS 3RP |
| Model Number | 3RP1505-1AW308K |
| SKU | 3RP1505-1AW308K |
| Product Type | Multi-Function Timer Relay |
| Contact Configuration | 1 Changeover Contact (1 C/O) |
| Number of Functions | 8 Timing Functions |
| Time Range | 0.05 Seconds to 100 Hours |
| Number of Time Ranges | 15 Selectable Ranges |
| Control Supply Voltage | 24–240V AC/DC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC Universal |
| 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 |
| Contact Material | AgSnO₂ (Silver Tin Oxide) |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Functions Included | ON Delay, OFF Delay, ON+OFF Delay, Cyclic, Pulse, Break Contact, Pulse Shaping, Additive ON Delay |
| Application | Industrial Automation & Process Control |
| Product Family | Siemens SIRIUS Timing Relays |
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