Relay Kelvin Test Sockets
Precision test sockets for Hook Pin and Straight Pin relays, designed for reliability.
Relay Kelvin Test Sockets: Precision and Performance You Can Trust
Need a high-quality, reliable solution for your testing needs? Look no further than our Relay Kelvin Test Sockets—designed to meet the toughest requirements across a wide range of industries and diverse testing environments.
Hook Pin Relay
Precision Test Socket
Top View: Hook Pin Relay
Design Notes: This Kelvin test socket was developed to accommodate three leads with different lengths and contact angles—an application requiring precise mechanical alignment and reliable electrical performance. Tooltronics engineered a Kelvin contact solution that securely anchors each lead while eliminating the need for adhesives, allowing for easier maintenance and servicing.
To support the customer’s shrink-freeze insertion process, the socket body was manufactured from glass-filled Teflon, providing excellent strength, dimensional stability, and grip during installation.
The final design delivered a robust solution that met all mechanical and electrical requirements, with the customer particularly recognizing the precision engineering and thoughtful material selection behind the design.
Straight Pin Relay
Precision Test Socket
Top View: Straight Pin Relay
Design Notes: The Tooltronics Straight Pin Guided Entry Relay Test Socket is designed for reliable performance and easy relay installation. Its three-piece construction features a precision-machined top plate that guides the relay into proper alignment before contacting the test pins.
This guided entry design reduces the risk of bent pins, misalignment, and relay damage during insertion, while improving operator efficiency and overall test consistency.
Ideal for production testing, validation, and laboratory environments, this socket helps protect both the relay and the test hardware while extending overall socket life.
2-Piece Relay Test Socket
Hook Pin / Straight Pin
Dual Compatibility Design
Design Notes: The Tooltronics Hook Pin / Straight Pin 2-Piece Relay Test Socket is designed for flexibility, durability, and ease of maintenance in demanding test environments. Our non-guided entry, two-piece design accommodates both hook and straight pin relay leads—allowing a single socket to be used for both relay types with equivalent or near-equivalent device lead lengths.
Featuring our adhesive-free anchoring design, these sockets simplify maintenance by enabling quick contact replacement without the mess or downtime associated with adhesives. This approach ensures long-lasting, trouble-free performance while reducing service time and costs.
High-Performance Materials
Manufactured from precision, high-grade materials—typically glass-filled Teflon—Tooltronics sockets perform exceptionally well during the shrink-freeze stage, delivering reliable results even in demanding conditions.
Consistent, Reliable Quality
Whether used in a laboratory, production line, or automated test environment, Tooltronics relay test sockets provide consistent, high-quality performance to support accurate, repeatable testing every time.
Key Features
- Accommodates Hook & Straight Pins
- Adhesive-free contact anchoring
- High-grade glass-filled Teflon
- Reliable in shrink-freeze stages
Design Notes
- Versatile Design: We can accommodate both Hook Pin and Straight Pin relays, supporting a wide range of configurations, lead lengths, lead diameters, and angles to fit your specific application needs.
- Easy Maintenance: Featuring an innovative adhesive-free contact anchoring design, these sockets allow for easy maintenance and contact replacement without the hassle of adhesives, ensuring long-lasting, trouble-free performance
- High-Performance Materials: Constructed from precision high-grade materials, typically glass-filled Teflon, our sockets perform exceptionally well during the shrink-freeze stage, delivering top-tier reliability in demanding conditions
- Consistent Quality: Whether you're in a laboratory, production line, or any other testing environment, our sockets provide consistent, high-quality performance every time, ensuring your tests are accurate and efficient.
Whether you're developing new devices or maintaining current systems, our sockets provide the precision and durability you need for the highest performance standards.
Precision Test Sockets for Relays
Tooltronics, Inc. manufactures precision relay test sockets engineered for reliable, repeatable electrical connections during power relay testing. Designed for engineering, validation, and production environments, our relay sockets provide stable low-resistance, high-current connections for accurate and repeatable test results.
Tooltronics relay test sockets are available for both hook pin relays and straight pin relays. In applications where lead lengths are similar, hook pin and straight pin relays can often utilize the same non-guided entry 2-piece socket configuration, providing added flexibility across multiple relay styles.
Designed for Demanding Test Applications
Our relay test sockets are commonly populated with LPK-100 and/or LPK-125 Kelvin contacts, allowing for accurate low-resistance measurements and dependable high-current performance. The replaceable Kelvin contact design allows for simplified maintenance and contact replacement without replacing the entire socket assembly.
Common Applications
Power relay testing
Aerospace and defense electronics
High-current production testing
Burn-in and validation fixtures
Automated test equipment (ATE)
DC-DC converter testing
Socket Material & Configuration Options
Tooltronics offers a wide range of socket material options selected based on the thermal, electrical, and mechanical requirements of the testing application. Multiple socket configurations are available to support varying relay package styles, lead diameters, spacing requirements, and operating environments.
Features
Compatible with hook pin and straight pin relays
LPK-100 and LPK-125 Kelvin contact options
Replaceable contact systems for easier maintenance
Low-resistance, repeatable electrical connections
High-current capable designs
Precision CNC machined construction
Wide range of socket material options available
Made in USA manufacturing
Family-owned and operated since 1962
Understanding Kelvin Contacts
Kelvin contacts utilize separate current and sensing contact points to help eliminate the effects of contact resistance during electrical testing. This allows for more accurate and repeatable low-resistance measurements, making Kelvin contacts ideal for demanding relay testing applications.
FAQ
What types of relays are these sockets compatible with?
Tooltronics relay test sockets are available for both hook pin and straight pin relay configurations. In some applications, both styles may utilize the same non-guided entry 2-piece socket design when lead lengths are similar.
Why use Kelvin contacts in relay testing?
Kelvin contacts provide more accurate low-resistance measurements by separating the current and sensing paths, reducing the influence of contact resistance during testing.
Are custom relay test sockets available?
Yes. Tooltronics, Inc. specializes in custom-engineered relay test socket solutions designed around specific relay packages, lead configurations, spacing requirements, and testing applications.
Request a Quote
Request a quote
Discuss a custom relay test socket application
Send us your relay drawing
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Need a Custom Solution?
Tooltronics specializes in custom engineering. Contact our team to discuss your specific testing requirements.
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