Accessories

Part Number	Description / PDF	Quantity
FX-20 Altech Corporation	MMS AUXILIARY SWITCH FRONT MOUNT	0
4-1616243-1 TE Connectivity Aerospace Defense and Marine	32613001=BASE GUIDE	0
AS-12M/5 Carlo Gavazzi	SURGE ABSORBER 30-72VDC	0
A16CR09-2.5A Altech Corporation	OVERLOAD RELAY FOR A16C-9A 32A C	0
PYDM-08SR Omron Automation & Safety Services	SOCKET BRIDGE 2-POS FOR MY RELAY	0
9-1616339-8 TE Connectivity Aerospace Defense and Marine	50900111=RING-LOCK E-18ST ZD ROT	0
062.08 Finder Relays, Inc.	REAR DIN RAIL ADAPT 62 SERIES	0
5-1616143-6 TE Connectivity Aerospace Defense and Marine	10967001=PLATE, BASE	0
APOL12/16E 9 C3 Altech Corporation	OVERLOAD RELAY - ECONOMY 10N-22N	22
15545.4 Conta-Clip	EXTERNAL INSULATED CROSS-CONNECT	0
G32A-A20-VD-X DC5-24 Omron Automation & Safety Services	REPLACEMENT POWER CARTRIDGE 20A	0
8-1616264-3 TE Connectivity Aerospace Defense and Marine	35990001=GASKET BASE	0
AU-4M-40 Altech Corporation	AUX SWITCH FOR GMCD-6M-16MR FRON	0
077.25 Finder Relays, Inc.	SSR HEAT SINK FOR 25A	0
9-1616166-4 TE Connectivity Aerospace Defense and Marine	15749002=PLATE, BASE	0
CGE22-3P-5AN Carlo Gavazzi	CC SSOLR 3P 22A 1-5A	0
MU-70 Altech Corporation	MOUNTING UNIT 70MM FOR MMS-100H	0
10725100 Wickmann / Littelfuse	VALVE-HOLDER	0
GT32LS22A Carlo Gavazzi	TOR CL20 SCREW 32A 16-22A	0
AX-4MF-31 Carlo Gavazzi	FRNT AUX 3NO/1NC MINI FAST-ON	0

Accessories

1. Overview

Relays Accessories are components designed to enhance the functionality, protection, and integration of electromagnetic relays in electrical systems. These accessories include mechanical supports, protective enclosures, contact modules, and signal interfaces. In modern technology, they play a critical role in ensuring reliability, safety, and adaptability of relay-based control systems across industries such as automation, energy, and transportation.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Protective Covers	Dust/waterproof enclosures (IP65-IP68), corrosion resistance	Outdoor power distribution cabinets
Mounting Bases	Quick-install brackets, DIN rail compatibility	Industrial control panels
Contact Modules	Multi-pole expansion, arc suppression design	High-current motor controllers
Drive Modules	DC/AC voltage conversion, coil suppression circuits	PLC output stage amplification
Signal Converters	Voltage/frequency isolation, optocoupler integration	Railway signaling systems

3. Structure and Composition

A typical relay accessory combines mechanical and electrical components:

Mechanical Structure: Injection-molded thermoplastic housing (e.g., PA66), metal mounting brackets, vibration-damping gaskets
Electrical Components: Silver-alloy contact plates, PCB-mounted transient voltage suppressors, thermal insulating layers
Interface Design: Standardized pin layouts (e.g., Eurocard 160x100mm), screwless terminal blocks (0.2-4mm wire compatibility)

4. Key Technical Specifications

Parameter	Value Range	Importance
Insulation Resistance	100M -10G	Ensures dielectric safety
Rated Voltage	12VDC-600VAC	Determines application scope
Contact Resistance	5-50m	Affects power efficiency
Operating Temperature	-40 C to +125 C	Environmental adaptability
IP Rating	IP20-IP69K	Protection level selection
Electrical Life	10,000-100,000 cycles	System longevity

5. Application Fields

Industrial Automation: PLC control cabinets, CNC machine relays
Power Systems: Transformer protection relays, grid monitoring equipment
Transportation: Train control systems, EV battery management
Consumer Electronics: Smart home relay modules, washing machine controllers
Medical Equipment: Patient monitoring systems, MRI machine relays

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Omron	MY2N-SR-DC12V	High-vibration resistance, LED status indicator
Schneider Electric	RXM4ABBD	Modular design, thermal overload protection
Siemens	3RT1025-1AP00	Plug-in terminal blocks, 3-phase control
Panasonic	JS1-12VDC	Miniature size (15.7x38mm), low power consumption
TE Connectivity	RT114112	Automotive-grade, AEC-Q100 certified

7. Selection Guidelines

Key considerations for selection include:

Environmental Conditions: Temperature extremes, humidity, and vibration levels
Load Requirements: Voltage/current ratings with 20% safety margin
Installation Method: PCB mount, panel mount, or DIN rail compatibility
Reliability Needs: MTBF (Mean Time Between Failures) >100,000 hours
System Compatibility: Matching coil voltage and contact configuration
Cost-Performance Ratio: Balancing durability and budget constraints

8. Industry Development Trends

Key trends shaping the future of relay accessories include:

Smart Integration: IoT-enabled accessories with embedded sensors for condition monitoring
Miniaturization: 30% size reduction achieved through advanced materials (e.g., LCP plastics)
Environmental Compliance: RoHS/REACH-compliant coatings and halogen-free materials
Modular Design: Interchangeable units for rapid system reconfiguration
High-Reliability Applications: Growth in aerospace and EV charging station accessories
Wireless Connectivity: Bluetooth-enabled relay modules for remote control systems