RP3SL024 Special Load PCB Relay Datasheet Summary

1. General Overview

The RP3SL024 is a general-purpose low-power PCB relay manufactured by SCHRACK (a TE Connectivity Ltd. company). It is a flux-proof version of the RP3SL series, featuring a 1-pole 1-form A (Normally Open, NO) contact configuration optimized for high inrush current applications (up to 120A). Designed with a monostable DC coil rated at 24VDC, the relay delivers reliable switching performance for industrial and commercial systems, including lighting control, timers, motor control, and building automation. It complies with international standards (IEC 61810-1) and holds certifications such as VDE (Cert. No. 40025448 for DC versions) and UL (E214024), ensuring safety and interoperability. The relay’s compact design, robust contact material (AgSnO), and excellent insulation properties make it suitable for demanding PCB-mounted applications.

2. Key Specifications

2.1 Contact Specifications

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2.2 Coil Specifications (Monostable DC Coil)

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2.3 Insulation & Environmental Specifications

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3. Mechanical & Physical Details

3.1 Package & Mounting

• Type: PCB Through-Hole Technology (THT)
• Mounting Distance: ≥3mm (for 16A operation)
• Terminal Type: Solder pins (bottom view assignment: A2=Operate, A3=Common for monostable)
• Weight: 18g
• Dimensions (Key): 29.0mm (length) × 12.6mm (width) × 32mm (height) (approx., based on series data)
• Soldering Heat Resistance (THT, IEC 60068-2-20): 270°C for 10s (flux proof version)

3.2 Packaging

• Packaging Type: Tube (20 pieces per tube) or box (500 pieces per box)
• Product Code Structure: RP (Type) + 3 (Flux Proof Version) + SL (1 Form A, AgSnO) + 024 (24VDC Coil)
• Part Number: 1-1393230-2

4. Functional Features

4.1 Core Capabilities

• High Inrush Current Handling: Supports up to 120A inrush current (20ms duration), ideal for incandescent lamp loads and motor start-up applications.
• Monostable Operation: Returns to the NO contact state when the coil is de-energized, ensuring predictable switching behavior.
• Robust Contact Design: AgSnO contact material provides excellent wear resistance, low contact resistance, and stability under high-current conditions.
• Flux Proof Construction: Protects internal components from flux contamination during PCB soldering, enhancing reliability in manufacturing and field use.
• Excellent Insulation: 4kVrms dielectric strength between contact and coil (8mm clearance/creepage) ensures safe operation in high-voltage environments.

4.2 Compliance & Certifications

• Standards: IEC 61810-1
• Certifications: VDE (40025448, DC versions only), UL (E214024)
• Material Compliance: EU RoHS/ELV, China RoHS, REACH (halogen content details available via TE’s Product Compliance Support Center)

5. Application Information

5.1 Target Applications

• Lighting control systems (commercial/industrial)
• Timers and time-delay circuits
• Motor control (small to medium-sized motors)
• Building automation (HVAC dampers, valve control)
• Industrial instrumentation and control panels
• Power distribution and switching modules

5.2 Operating Conditions

• Coil Operating Environment: Ambient temperature -40°C to +35°C (flux proof version)
• Coil Duty Factor: 20% (at 23°C ambient temperature, no pre-energization)
• Voltage Tolerance: Operates within 70-110% of rated coil voltage (IEC 61810 standard)
• PCB Layout Considerations: Ensure minimum mounting distance of 3mm for 16A operation; follow terminal assignment (A2=Operate, A3=Common) for proper wiring.

6. Ordering & Additional Information

6.1 Ordering Details

• Product Code: RP3SL024
• Version: Flux proof (code "3" in product structure)
• Coil Configuration: Monostable DC coil (24VDC)
• Contact Configuration: 1 Form A (NO), AgSnO
• Part Number: 1-1393230-2
• Alternative Versions: Bistable 24VDC variants (e.g., RP3SLA24 for 1-coil bistable, RP3SLF24 for 2-coil bistable) available on request.