Electromagnetic relay protectors typically range from $5 to $50 per unit, depending on type, specifications, and brand.

Price Overview

The cost of an electromagnetic relay protector varies widely based on several factors:

• Type and Functionality: General-purpose relays are usually less expensive, while specialized protection relays with features like overload protection, RC absorption circuits, or anti-interference modules can cost more .
• Specifications: Relays designed for higher voltage or current ratings, or for industrial-grade applications, generally command higher prices .
• Brand and Supplier: Prices differ between manufacturers and distributors. For example, online platforms like Amazon list RC absorption relay modules for around $5–$15 per unit for small-scale applications, while wholesale protection relays from suppliers like Made-in-China can vary depending on quantity and model .
• Certifications and Quality: Relays with UL, CE, or ISO certifications, or those made with high-quality PCB materials, may be priced higher due to reliability and compliance standards .
• Purchase Quantity: Buying in bulk often reduces the per-unit cost, especially for industrial or commercial applications .

Example Products

• Keenso Electromagnetic Anti-Interference Module: Suitable for DC/AC 5–400V inductive loads under 1000W, priced around $10–$15 per module on Amazon .
• JESSINIE RC Absorption Snubber Circuit: Pack of 10 modules for relay protection, typically $12–$20, designed for anti-interference and voltage fluctuation protection .
• Wholesale Protection Relays: Industrial-grade protection relays from manufacturers like ZHUHAI STROM ELECTRIC or ZHEJIANG KAIMIN can be purchased at wholesale prices, often negotiated based on order volume .

Key Considerations

When selecting a relay protector, consider:

• Load type and voltage/current requirements
• Environmental conditions (temperature, vibration, dust)
• Mounting style (PCB, panel, DIN rail)
• Additional features like remote monitoring, fault detection, or automation integration Overall, electromagnetic relay protectors are affordable for small-scale applications but can be significantly more expensive for high-performance industrial systems, with prices influenced by specifications, certifications, and purchase volume .