Relay Sockets

Image Part Number Description / PDF Quantity Rfq
2777030

2777030

Phoenix Contact

TERMINATION BLOCK W/TEST CONNECT

0

2980348

2980348

Phoenix Contact

TERM BLOCK

0

2301590

2301590

Phoenix Contact

RELAY BASE SOCKET

0

2966087

2966087

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2900258

2900258

Phoenix Contact

14 MM PLC BASIC TERMINAL BLOCK F

0

2900281

2900281

Phoenix Contact

PLC-BPT-230UC/21

8

2900279

2900279

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2967316

2967316

Phoenix Contact

TERM BLOCK

0

2980267

2980267

Phoenix Contact

6.2MM PLC SENSOR TERM BLOCK 5V

0

2967824

2967824

Phoenix Contact

TERM BLOCK

0

2900282

2900282

Phoenix Contact

PLC-BPT- 12DC/21-21

0

2900452

2900452

Phoenix Contact

RELAY SOCKET DIN RAIL

0

7001214

7001214

Phoenix Contact

RELAY SOCKET 8 POSITION DIN RAIL

9

2980018

2980018

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2833615

2833615

Phoenix Contact

RELAY SOCKET 11 POS DIN RAIL

0

2980238

2980238

Phoenix Contact

RELAY SOCKET DIN RAIL

0

2972673

2972673

Phoenix Contact

RELAY SOCKET 16 POS DIN RAIL

0

2271219

2271219

Phoenix Contact

SIM-AMS/H

0

2912413

2912413

Phoenix Contact

14MM PLC BASIC TERM BLOCK 24VDC

0

2967196

2967196

Phoenix Contact

RELAY SOCKET 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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