Relay Sockets

Image Part Number Description / PDF Quantity Rfq
2900937

2900937

Phoenix Contact

RIF-3-BPT/2X21

3

2967057

2967057

Phoenix Contact

14MM PLC ACTUATOR TERM BLOCK 24V

8

2966058

2966058

Phoenix Contact

RELAY SOCKET DIN RAIL

10

2833602

2833602

Phoenix Contact

RELAY SOCKET 8 POSITION DIN RAIL

2

5601975

5601975

Phoenix Contact

RELAY SOCKET 8 POSITION DIN RAIL

1

2900958

2900958

Phoenix Contact

RIF-0-BPT/21

297420

2966896

2966896

Phoenix Contact

RELAY SOCKET DIN RAIL

415110

2900443

2900443

Phoenix Contact

RELAY SOCKET DIN RAIL

23

2912400

2912400

Phoenix Contact

14MM PLC BASIC TERM BLOCK 24V

5

2820149

2820149

Phoenix Contact

RELAY SOCKET 4 POSITION DIN RAIL

193

2967031

2967031

Phoenix Contact

RELAY SOCKET DIN RAIL

10170

2967769

2967769

Phoenix Contact

RELAY SOCKET DIN RAIL

13

2980416

2980416

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2967837

2967837

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2980432

2980432

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2900444

2900444

Phoenix Contact

PLC-BPT- 12DC/21

17

1047028

1047028

Phoenix Contact

RELAY SOCKET DIN RAIL

20

2900254

2900254

Phoenix Contact

TERM BLOCK

301090

2966029

2966029

Phoenix Contact

RELAY SOCKET DIN RAIL

29220

2820136

2820136

Phoenix Contact

RELAY SOCKET 3 POSITION DIN RAIL

0

Relay Sockets

1. Overview

Relay sockets are modular electrical components designed to interface with relays, enabling secure mechanical mounting and reliable electrical connectivity. They act as intermediaries between relays and control circuits, facilitating easy installation, replacement, and maintenance. In modern automation systems, relay sockets play a critical role in ensuring signal integrity, load management, and system scalability across industrial, automotive, and consumer electronics applications.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
PCB Mount SocketsCompact design for printed circuit board integrationIndustrial control panels, IoT devices
Panel Mount SocketsFront-accessible installation for field maintenanceMachinery control cabinets, test equipment
Socket with Terminal BlocksDIN-rail compatible, screw/clamp terminationsBuilding automation systems, power distribution
High-Frequency SocketsShielded design for signal integrity above 1GHzTelecom infrastructure, RF testing equipment

3. Structure and Components

Typical relay socket construction includes: - Insulating housing (UL94 V-0 rated thermoplastic) - Beryllium copper contact springs with gold plating - Wire termination options (screw, spring cage, or solder) - Mechanical keying features to prevent misinsertion - Optional integrated LED indicators or suppression circuits The design ensures vibration resistance and maintains contact pressure over 500+ mating cycles.

4. Key Technical Specifications

ParameterValue RangeImportance
Voltage Rating12V-600V AC/DCDetermines circuit compatibility and safety margins
Current Capacity0.1A-30ADefines maximum load handling capability
Contact Resistance5-50m Impacts power efficiency and thermal performance
Dielectric Strength1kV-5kVEnsures electrical isolation safety
Mechanical Life10,000-100,000 cyclesDictates maintenance intervals and reliability

5. Application Fields

Primary industries include: - Industrial automation (PLC systems, motor controls) - Automotive testing (ECU validation rigs) - Building management (HVAC control networks) - Renewable energy (solar inverter interfaces) - Test & measurement equipment (ATE systems)

6. Leading Manufacturers and Products

ManufacturerKey Product SeriesFeatures
OmronMY-Sockets3-level contact protection, 80A rating
Siemens3RT10 socketsModular design with integrated diagnostics
Phoenix ContactUK relay socketsPush-in wiring, 600V insulation
TE ConnectivityRelay Carrier SocketsHigh-frequency optimization to 3GHz

7. Selection Guidelines

Key considerations: - Match socket configuration to relay pinout (e.g., 8-pin, 11-pin) - Verify current/voltage ratings exceed system requirements - Environmental factors: operating temperature (-40 C to +125 C), vibration resistance - Compliance with industry standards (UL, CSA, IEC 61810) - Termination method compatibility with wiring infrastructure

8. Industry Trends

Emerging developments include: - Miniaturization for space-constrained applications - Integrated smart diagnostics with IoT connectivity - Halogen-free materials compliance with RoHS 3.0 - Increased reliability for automotive EV charging systems - Hybrid sockets supporting both PCB and panel mounting

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