Yanning Intelligent News: Classification of Relays Release Date: 2026-07-17
1. Classification by Overall Dimension
Classification standard: Classify relays based on the maximum side length of the whole product Micro relay: The maximum side length ≤ 10mm Subminiature relay: 10mm ＜ maximum side length ≤ 25mm Small relay: 25mm ＜ maximum side length ≤ 50mm
2. Classification by Contact Load Current
Classification standard: Divide types according to the rated continuous current supported by contacts Micro-load relay: Rated contact current less than 0.2A Light-load relay: Rated contact current from 0.2A to 2A Medium-load relay: Rated contact current from 2A to 10A High-power relay: Rated contact current more than 10A
3. Classification by Application Scenarios
Classification standard: Group relays according to operating environment and supporting industries
Communication Relays (Including High-Frequency Relays) They are widely used in signal transmission circuits, supporting signal switching from low level to medium current, and no strict environmental restrictions are required.
Industrial Control Relays Matched with automatic production lines and industrial control cabinets. They feature strong contact load capacity, long mechanical & electrical service life, and stable performance under complex factory conditions.
Household Appliance Relays Used for all kinds of household electric products with strict safety standards. They maintain excellent stability during long-time continuous operation.
Automotive Relays Designed exclusively for vehicle circuits. They support large current switching and own outstanding anti-vibration & anti-shock performance, adapting to severe temperature changes and bumpy driving conditions inside cars.
