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Low Voltage Industrial Plugs and Sockets | SELV & PELV Connectors (20V–50V)
KRIPAL Low Voltage Plugs and Sockets Are Engineered for Maximum Operational Safety Below 50V
KRIPAL manufactures low voltage industrial plugs, sockets, and connectors specifically designed for SELV (Safety Extra Low Voltage) and PELV (Protective Extra Low Voltage) systems operating at 20–25V and 40–50V AC (50/60Hz). These non-interchangeable connectors are ideal for power supply, control signals, low-voltage lighting, and auxiliary circuits in industrial automation, machinery safety, and hazardous applications where standard 230/400V CEE/IEC 60309 units are oversized. Compliant with EN/IEC 60309-2 standards, the series is available in 16A and 32A (2P/3P) configurations with IP44 and IP67 ingress protection, ensuring reliable performance in harsh environments.
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UKS-A IP44 Cable Mount 2P/3P 16A/32A Low Voltage Plug 20-25V 40-50V
KRIPAL UKS-A IP44 Low Voltage Plug and Socket ensure safety with colour-coded voltage, mistake-proof insertion, and high IP ratings.
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UKS-A IP67 Cable Mount 2P/3P 16A/32A Low Voltage Plug 20-25V 40-50V
KRIPAL UKS-A IP67 Low Voltage Plug and Socket ensure safety with colour-coded voltage, mistake-proof insertion, and high IP ratings.
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UKS-B IP44 Panel Mount 2P/3P Rated 16A/32A Low Voltage CEE Socket 20-25V 40-50V
KRIPAL UKS-B IP44 Panel Mount Plug and Socket ensure safety with colour-coded voltage, mistake-proof insertion, and high IP ratings.
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UKS-B IP67 Panel Mount 2P/3P Rated 16A/32A Low Voltage CEE Socket 20-25V 40-50V
KRIPAL UKS-B IP67 Panel Mount Plug and Socket ensure safety with colour-coded voltage, mistake-proof insertion, and high IP ratings.
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UKS-C IP44 Cable Mount 2P/3P 16A/32A Low Voltage Connector 20-25V 40-50V CEE Socket
KRIPAL UKS-C IP44 Low Voltage Plug and Socket ensure safety with colour-coded voltage, mistake-proof insertion, and high IP ratings.
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UKS-C IP67 Cable Mount 2P/3P 16A/32A Low Voltage Connector 20-25V 40-50V CEE Socket
KRIPAL UKS-C IP67 Low Voltage Plug and Socket ensure safety with color-coded voltage, mistake-proof insertion, and high IP ratings.
Ask a QuoteLow Voltage Socket Selection Guide
Low voltage industrial plugs and sockets operate in SELV and PELV circuits at 20–25V and 40–50V AC (50/60Hz), providing galvanic isolation from mains voltage for operator safety in accessible control and signalling interfaces. KRIPAL manufactures purpose-designed low voltage connectors—including plugs, connectors, and panel-mounted sockets—that are physically distinct from standard mains-voltage IEC 60309 devices to prevent dangerous cross-connection.
Low Voltage Connector Technical Specifications
Voltage Range and Safety Classification
Rated for 20–25V and 40–50V AC circuits per SELV and PELV safety classifications. The connector minor keyway and grounding position (such as 12h) differ from standard mains-voltage IEC 60309 connectors, making it physically impossible to insert a low voltage plug into a 230V or 400V socket and vice versa. This non-interchangeable design prevents potentially lethal cross-voltage connection errors.
Current Ratings and Contact Configuration
Available in 16A and 32A current ratings with 2P and 3P pole configurations optimized for low-voltage power supply, control signals, and auxiliary circuits. Conductor cross-sections support 1.5–2.5 mm² for 16A and 4–6 mm² for 32A, ensuring stable current transmission in a compact form factor.
Housing Material and Environmental Protection
Housings are injection-moulded from high heat-resistant, impact-resistant thermoplastic with UV stabilization for harsh industrial environments. IP44 splash-proof versions suit indoor control panels and covered applications. IP67 dust-tight and watertight versions feature robust external cable grips and internal gasket seals to protect connections in exposed outdoor installations, wash-down areas, and wet environments.
Distinction from Standard Industrial Connectors
KRIPAL low voltage connectors utilize a special keyway geometry and clock-position rating compliant with EN/IEC 60309-2 standards. This deliberate physical incompatibility ensures full compliance with electrical safety regulations requiring strict separation of SELV/PELV extra-low voltage circuits from standard mains voltage supply points.
Specify Your Low Voltage Connectors
- Application Datasheets: Download detailed technical specifications, including voltage ratings (20–50V), 2P/3P pin configurations, conductor cross-sections, and dimensional drawings (CAD) for seamless integration into your control system design documentation.
- SELV Compliance Support: Our application engineers provide expert technical guidance on meeting SELV and PELV circuit separation requirements when specifying non-interchangeable low voltage connectors for accessible panel locations.
- OEM Volume Programs: Contact our export sales team for factory-direct pricing and streamlined global logistics tailored for control panel manufacturers and machinery OEM production volumes.
Low Voltage Connector Deployment Environments
KRIPAL low voltage industrial plugs, sockets, and connectors serve SELV and PELV circuits (20–50V AC) across automation, safety, and signaling applications. Compliant with EN/IEC 60309-2, the connection interface features non-interchangeable keying to ensure absolute physical separation from mains voltage circuits.
Industrial Automation Control and Sensor Networks
Low voltage plugs and panel mounted sockets interface between PLC I/O modules, distributed sensor arrays, and actuator control circuits on automated production lines. The 12h keyway position prevents accidental connection to standard 230V/400V auxiliary power circuits within the same control cabinet, safeguarding sensitive digital fieldbus components.
Building Management and Lighting Control Systems
SELV-rated connectors serve low-voltage lighting (20–25V / 40–50V), HVAC damper actuators, and occupancy control networks in industrial and commercial facilities. Available in IP44 splash-proof and IP67 watertight housings with high heat-resistant contact carriers, these units allow safe, tool-free plug-in connections in accessible maintenance locations without complex mains-voltage conduit installations.
Machine Safety Interlock and Emergency Stop Circuits
Low voltage connectors carry critical safety signals between emergency stop pushbuttons, safety gate interlocks, and safety PLC input modules. High-grade thermoplastic housings with external cable grips protect internal gaskets and terminals from vibration and impact, preventing safety loop wiring from being confused with power distribution circuits during routine maintenance and troubleshooting.
Build Safer Control Systems with Dedicated Low Voltage Connectors
- Safety Compliance Review: Our application engineers assess your control circuit layout and recommend non-interchangeable 20V–50V low voltage connector types that satisfy strict SELV and PELV separation requirements per IEC 60364-4-41.
- Technical Documentation: Complete CE certifications, EN/IEC 60309-2 compliance records, and IP44/IP67 test reports ready for immediate inclusion in your machinery technical file and safety compliance documentation.
- OEM Production Supply: Contact our export sales team for factory-direct volume pricing and customized delivery scheduling coordinated seamlessly with your control panel manufacturing program.
Behind KRIPAL Low Voltage Connector Manufacturing
KRIPAL manufactures low voltage industrial plugs, sockets, and connectors on dedicated production tooling with unique keying geometry that ensures physical incompatibility with standard-voltage IEC 60309 devices. Operating at 20–25V and 40–50V AC, this deliberate design separation supports machinery OEMs and panel builders in achieving SELV and PELV circuit safety compliance with factory-direct supply.
Purpose-Designed Keying for Voltage Separation
Low voltage connector housings utilize a specialized minor keyway and grounding position (such as 12h) incompatible with standard 230V and 400V CEE/IEC 60309 connectors. This non-interchangeable physical separation, verified during production tooling qualification, provides the intrinsic safety barrier required by SELV and PELV circuit standards.
ISO 9001 Certified with Voltage Rating Verification
Every production batch undergoes dielectric strength testing, IP44/IP67 ingress testing, and contact resistance measurement. Test records include physical keying verification to confirm the connector cannot be inserted into standard mains voltage sockets, validating compliance with EN/IEC 60309-2 safety requirements.
Compact Form Factor for Space-Constrained Panels
Optimized for 20V–50V systems, KRIPAL low voltage 16A and 32A (2P/3P) panel mounted sockets and connectors feature a streamlined, space-saving design. High heat-resistant contact carriers allow dense installation without sacrificing thermal safety in densely populated control cabinets and automation enclosures.
Consolidated Shipments with Standard Voltage Products
Combine low voltage plugs and sockets with standard industrial plugs, wall sockets, and interlock switches on a single purchase order. Distinctive physical packaging and labeling prevent warehouse mixing of voltage categories during receiving, inventorying, and kitting operations.
OEM Stock Programs for Control Panel Production
Maintain agreed safety stock at our manufacturing facility for your standard 2P and 3P low voltage connector specifications. Release inventory against rolling production forecasts with guaranteed lead times for automated control panel assembly line consumption.
Private Label with Voltage Rating Laser Marking
Custom part numbers, brand logos, and specific low voltage ratings (20–25V / 40–50V) are laser-marked directly on the durable thermoplastic housing. Clear packaging labels differentiate extra-low voltage products from standard mains-voltage connectors in your warehouse and on assembly workstations.
Export Documentation with Voltage Classification
Every export shipment includes EN/IEC 60309-2 compliance certificates, IP rating test reports, and Certificates of Origin. Documentation clearly identifies products as SELV and PELV compliant for smooth customs classification and end-customer safety filing.
Direct Safety Compliance Engineering Support
Control system designers communicate directly with KRIPAL technical engineers for SELV circuit separation guidance, connector selection (16A/32A, IP44/IP67), and application-specific CAD drawing verification without distributor delays.
Frequently Asked Questions
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