KACON K7SR & K7SC Series Safety Relays and Sockets are core safety control components designed for demanding industrial environments. This product line provides the highest level of reliable safety protection for machinery and equipment through diverse contact configurations, forced-guided contacts compliant with international standards, and excellent electrical performance, ensuring safe operating conditions for various complex applications.
• Various contact configurations: 2NO + 2NC, 3NO + 1NC, 5NO+1NC, 4NO+2NC, 3NO+3NC.
• Forced inductive contact type according to IEC 61810-3.
• 6A switching capacity.
• Terminal layout for easy wiring of PWB patterns.
• Low power consumption: 360mW (4P) 500mW (6P).
• High insulation capacity: 10kV surge voltage between input and output.
• UL standard insulation class: Class F.
• Environment friendly product (in compliance with RoHS standards).
• External Size: 4P (40.0 x 13.0 x 24.0mm), 6P (50.0 x 13.0 x 24.0mm).
Core Product Highlights
Flexible Contact Configurations: Offers a variety of standard contact combinations, including 2NO+2NC, 3NO+1NC, 4NO+2NC, 5NO+1NC, and 3NO+3NC, providing excellent configuration flexibility to easily adapt to various safety circuit designs.
Forced-Guided Mechanism Compliant with Safety Standards: The contact mechanism strictly adheres to the IEC 61810-3 standard, ensuring that the Normally Open (NO) and Normally Closed (NC) contacts cannot be closed simultaneously, fundamentally preventing safety circuit failure. This is key for implementing safety interlock functions.
Robust Load Switching Capacity: A high switching capacity of 6A enables direct control of medium-sized contactors or loads, demonstrating strong driving performance.
Optimized Installation and Wiring Design: The scientific terminal layout greatly facilitates the wiring of PCB (Printed Circuit Board) patterns, simplifying the production process and improving installation efficiency and reliability.
High Efficiency & Excellent Insulation: The products feature very low power consumption (4P: 360mW, 6P: 500mW) and provide high impulse withstand voltage of 10kV between input and output, ensuring outstanding electrical isolation and safety.
Compact Design & Environmental Compliance: Available in two compact sizes: 4P (40.0 x 13.0 x 24.0mm) and 6P (50.0 x 13.0 x 24.0mm). The products fully comply with the RoHS environmental directive.
Certifications & Standards
This product series complies with RoHS standards, and its insulation system meets UL Class F requirements, ensuring stable insulation performance and long service life even in high-temperature environments.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Product Series | Safety Relays & Sockets K7SR & K7SC Series |
| Contact Configurations | 2NO + 2NC, 3NO + 1NC, 5NO + 1NC, 4NO + 2NC, 3NO + 3NC |
| Safety Structure | Forced-Guided Contacts (IEC 61810-3) |
| Switching Capacity | 6A |
| Power Consumption | 4P: 360mW / 6P: 500mW |
| Insulation Performance | 10kV impulse withstand voltage between input and output |
| Insulation Class | UL Class F |
| Environmental Standard | RoHS |
| External Dimensions | 4P: 40.0 x 13.0 x 24.0mm / 6P: 50.0 x 13.0 x 24.0mm |
Application Areas
The K7SR & K7SC Series is the ideal choice for building safety circuits in systems such as:
Emergency Stop Safety Circuits
Safety Light Curtains and Area Scanners
Two-Hand Control Devices
Safety Door Locks and Interlocking Devices
Pressure-Sensitive Safety Mats
And all industrial machinery requiring fail-safe control.
Choosing KACON Safety Relays means investing in reliable protection for your equipment, verified by international standards. We are committed to helping you create a production environment with zero hidden dangers through innovative safety technology.
| Safety Relay K7SR Series | |||||
| Part Number | 3NO + 1NC | 2NO + 2NC | 5NO + 1NC | 4NO + 2NC | 3NO + 3NC |
 |  |  |  |  | |
| K7SR-3A1B-24VDC | K7SR-2A2B-24VDC | K7SR-5A1B-24VDC | K7SR-4A2B-24VDC | K7SR-3A3B-24VDC | |
| Safety Relay Socket K7SC Series | ||
| 4P | 6P | |
 |  | |
| Part Number | K7SC-10FL-24VDC | K7SC-14FL-24VDC |
| Safety Relay PCB Socket K7SA Series | ||
| 4P | 6P | |
 |  | |
| Part Number | K7SA-10P | K7SA-14P |
※ Please refer to the catalog for the detailed product selection and specifications.
