Best Electromechanical Relays Under $100 (2026)
We ranked relays under $100 by a value score combining verified user ratings, feature set (coil voltage, contact type, mounting, indicators), and suitability for common use cases
This roundup covers electromechanical relays suitable for hobbyist, industrial, and smart-home projects priced under $100, ranked by a value score that balances price, features, and user ratings. Selections prioritize clear specifications (coil voltage, contact configuration, mounting), verified user feedback, and versatile use cases such as DIN-rail, Arduino/Raspberry Pi integration, and timed switching
Top Picks
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1
Iot Relay enclosed high-power relay shield
Enclosed high-power relay shield for Arduino, Raspberry Pi, PIC or WiFi. Safe power control with 4 outlets, 2x NC and 2x NO, easy Linux control
- 4-outlet relay with NC/NO
- easy Linux controllability
- overcurrent protection
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2
16A Multifunction Time Relay GRT8-M2 AC/DC12V-240V
Versatile time relay with 10 functions and adjustable ranges for AC/DC control. Features LED indication and compact rail-mount design. Customers praise programming flexibility and value, while noting cryptic instructions and mixed durability
- 10 function choices
- 0.1s–10days time scale
- ultra-small size with rail mounting
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3
12V DIN rail relay, 5-pin SPDT with LED, 6A 250VAC/30VDC
12V coil relay with SPDT contacts (1NO/1NC) and built-in LED indicator in a DIN-rail socket. Mechanical life 10,000,000 cycles; electrical life 300,000 cycles. Includes mounting socket and screws
- SPDT 1NO 1NC contacts
- DIN-rail mounting socket
- certified components
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4
20Pcs Electromagnetic Power Relay 8-Pin DPDT 12V
Electromagnetic relay with DIN rail base, 8-pin DPDT, 10A coil 12V DC, includes LED indicator. Customers note easy connections and good build quality from Shenzhen, with easy mounting; some fit alignment issues with base
- LED indicator included
- DIN rail mounting
- 8-pin DPDT contacts
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5
20 PCS DPDT 8-pin 24V DC Relay with Socket, LED Indicator, DIN Rail base
Electromagnetic relay with DPDT configuration, 24V DC coil, and socket base. LED indicator aids wiring and testing; suitable for DIN rail mounting. Customers note easy installation and good build quality
- DPDT 2NO 2NC configuration
- socket base included
- LED status indicator
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6
Electromagnetic Power Relay 8-Pin DPDT 24V AC with Socket Base
Electromagnetic relay with DIN rail mounting, LED indicator, and socket base. Easy connections; suitable for motor and starter relay applications. Users note solid build from Shenzhen and easy integration, with some fit issues
- LED indicator
- DIN rail mounting
- Socket base for easy wiring
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7
10Pcs 5V DC Relay with LED Indicator, SPDT HF41F/5-ZS, 6A
Miniature power relay with 5V DC coil, SPDT contact, and LED indicator. Suitable for low-voltage control circuits with UL/VDE/CE certifications noted for components
- SPDT with NO/NC outputs
- UL/VDE/CE component certifications
- compact miniature form factor
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8
6Pcs Power Relay Switch with Test Button, 110-120V AC, 1NO1NC
6-pack power relay switch with test button, 110-120V AC, SPDT configuration, LED indicator, UL/CE certified. Customers note solid functionality and quality
- UL/CE certified
- test button for manual state change
- 6-pack with sockets included
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9
Miniature 24V Relay 1NO 1NC SPDT 6A, 5-pin DIN rail
Subminiature power relay with 24V coil for DC/AC, SPDT contact (1NO 1NC), 6A rating. Mechanical life up to 10,000,000 cycles; electrical life 300,000 cycles. Certifications noted
- 24V coil, SPDT
- UL/VDE/CE certifications
- long mechanical/electrical life