The Lovato HR5XS21S Socket with spring terminals provides dependable connectivity for HR30… and HR50… devices. With a rated insulation voltage Ui of 250 V and a 4 kV impulse withstand rating, it supports robust electrical separation in demanding assemblies. Conforming to IEC/EN 61810, the HR5XS21S designation ensures clear identification and seamless specification, helping buyers match the correct socket to existing Lovato equipment and documentation.
Built as an accessory socket for HR30… and HR50…, the spring terminal format facilitates reliable terminations and tidy installations. Sustainability certification and compliance with IEC/EN 61810 align with modern specification requirements. Choose this Lovato socket when 250 V insulation and 4 kV impulse withstand ratings are needed, supporting consistent part coding, quality assurance, and straightforward maintenance across your installations.
Key Benefits
Spring terminals facilitate secure, consistent terminations and tidy wiring.
Rated insulation voltage Ui 250 V for robust electrical separation.
4 kV impulse withstand rating improves tolerance to transient overvoltages.
Conforms to IEC/EN 61810, supporting standards-based specification.
Compatible accessory for HR30… and HR50… series devices.
Clear HR5XS21S designation simplifies ordering and maintenance records.
Backed by Sustainability certification to support environmental objectives.
Installations requiring a spring terminal socket connection
Projects specifying IEC/EN 61810 conformity
Requirements for 250 V insulation and 4 kV impulse withstand
Technical Specifications
HS Code
85365080
Product type designation
HR5XS21S
Rated insulation voltage Ui (IEC/EN)
250 V
Rated impulse withstand voltage Uimp
4 kV
Frequently Asked Questions
What devices is the HR5XS21S compatible with?
It is an accessory socket for HR30… and HR50… series devices.
What are the electrical ratings of this socket?
It has a rated insulation voltage Ui of 250 V and a rated impulse withstand voltage Uimp of 4 kV.
Which standard does the HR5XS21S conform to?
It conforms to IEC/EN 61810.
What type of terminals does this socket use?
It uses spring terminals for dependable wiring connections.
Is documentation provided with the product?
Manufacturer documentation is available via downloadable datasheet; refer to it for installation guidance.
Safety note: Install and commission only by qualified personnel. Observe the 250 V insulation and 4 kV impulse ratings, and follow manufacturer documentation and applicable standards for safe operation.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...