Where can I buy relay protectors

Relay protectors can be sourced from specialized electrical suppliers such as Siemens, ABB, RS Components, and Circuit Breaker Sales, offering both protective relay devices and relay covers for various applications.

Industrial and Utility-Grade Protective Relays

For high-performance protection in power grids and industrial systems, you can consider:

• Siemens SIPROTEC Relays: These include universal protection relays for feeders, lines, and motors in medium-voltage grids. SIPROTEC 5 and SIPROTEC V series offer digital substation integration, power quality monitoring, and customizable protection functions .
• ABB Protection Relays: ABB provides numerical and multifunctional relays suitable for medium-voltage and distribution systems, with programmable features for precise protection and control .
• Circuit Breaker Sales: Offers a wide range of protective relays, from simple overcurrent induction types to complex relays for utility transmission and distribution systems, including renewal parts for older models .

Relay Covers and Basic Protectors

For environmental and operator safety protection of relays in commercial or residential settings:

• RS Components: Offers relay covers and protectors made from durable plastic, aluminum, or steel. These covers protect relays from dust, moisture, and accidental contact, and some models include ventilation or easy access for testing .

Online Industrial Marketplaces

• DirectIndustry: Lists multiple manufacturers of protection relays, including arc-flash, overcurrent, and motor-starting relays, with specifications for voltage, tripping current, and modular configurations .

Tips for Selection

• Determine the application: Choose between environmental covers for safety and microprocessor-based protective relays for electrical fault protection.
• Check compatibility: Ensure the relay protector fits your relay type and voltage/current requirements.
• Consider features: Some relays include arc-flash detection, programmable settings, or digital substation integration. By exploring these suppliers and marketplaces, you can find relay protectors suitable for industrial, commercial, or residential electrical systems, ensuring both safety and reliable operation.