Relay & Relay Box
Relays are electromechanical switches that use a small electrical signal to control a larger electrical load, while also offering electrical isolation and protection. They provide the ability to switch high-power circuits by using a smaller signal, making them essential components in a multitude of applications. Relay boxes are designed to house and protect relays, providing an organized way to manage multiple relays in a single system. They are often designed to provide environmental protection, and they make it easier to install, access, and troubleshoot relays in various electrical and electronic systems.
JD1912-W12V Waterproof 30A/40A SPDT 4Pin 12V Relay with 14 AWG Harness Socket
This waterproof 4-pin SPDT 30A/40A 12V relay with harness socket offers easy wiring with color-coded, tinned wires, a secure interlocking design, and durable construction perfect for automotive, marine, and outdoor applications.
Product Details Ask For QuoteJD1914-W12V Automotive Waterproof Heavy Duty 5Pin SPDT 30/40A 12V Pre-wired Car Relay with Built-in Diode
The waterproof 5Pin 30/40A pre-wired car relay is rated for normal open 40A, normal closed 30A in 12V DC, SPDT and 5 Pin with built-in diode
Product Details Ask For QuoteRB-R6F6-3 12V Automotive 6 Way Fuse and Relay Module Box with LED Indicators
This 12V 6 way fuse and relay module box offers a comprehensive wiring solution with pre-installed relays, fuses, a relay module, and LED indicators.
Product Details Ask For QuoteRB-R6F6-2-RF 6 Way 12V Relay Box Kit with 5-Pin Relays and ATC/ATO Fuses
Protect your electrical system with the 12V relay box kit include 6×40A 5-Pin relay, 16×ATC/ATO fuses, relay terminals, and fuse terminals.
Product Details Ask For QuoteRB-R6F6-RF 6 Way Waterproof Fuse and Relay Box with ATC/ATO Fuses and Relays
The waterproof fuse and relay box include 5×40A 5Pin relay, 1×RTT7121 relay, 16×ATC/ATO fuses, 29×relay terminals, and 12×fuse terminals.
Product Details Ask For QuoteJD1213 12VDC 40A 4-Pin or 5-Pin Relay Kits with Wired Socket
The 12VDC 40A 4-Pin or 5-Pin relay kits feature a secure interlocking design with insulated label wires for safe and convenient accessory wiring.
Product Details Ask For QuoteRB-R6F6 Automotive 6 Way Universal Fuse Relay Block Kit
RB-R6F6 6 Way Universal Fuse Relay Block Kit is 6 slots relay panel design, 5 slots for 5-pin Bosch style relays, and 1 slot for RTT7121 4-pin relay.
Product Details Ask For QuoteRB-R6F6S-W1 12V Waterproof 6 Way Automotive Fuse And Relay Box
The automotive fuse and relay box includes 6-way relay housing, relay terminal, insurance insert terminal, mounting bracket and waterproof adhesive pad, with neutral 4-pin relay and insert fuse with wire.
Product Details Ask For QuoteRB-R6F6-W2 Universal Pre-wired 6 Slots 12 Volt Auto Fuses and Relays Box
The auto fuses and relays box is a 6-slot relay and 6-slot fuse design that includes 6×Bosch-style 4-pin relays, 6×ATC/ATO fuses, and pre-wired.
Product Details Ask For QuoteRB-R6F6-W1 Automotive 6 Way Blade Fuse Relay Box with Pre-wired
The 6 way blade fuse relay box is a 6-slot relay and 6-slot fuse design that includes 5×Bosch-style 4-pin relays, 1×RTT7121 4-pin relay, 16×ATC/ATO fuses, 29×relay terminals, 12×fuse terminals and pre-wired.
Product Details Ask For QuoteRB-R6F6-W1-B 12-Slot With Wireless Control Automotive Relay Box
RB-R6F6-W1-B Automotive Relay Box includes 5×5-pin relay, 1×4-pin relay, 29×relay terminals, 12×fuse terminals, wires, and remote control.
Product Details Ask For QuoteRB-R4F12-W1 8Way With 4 Relays and Blades Relay Fuse Block
RB-R4F12-W1 Waterproof 8 Way Relay Fuse Block includes 4×12V 40A 4-pin relays, 15×blade fuses, 20×relay terminals, 24×fuse terminals, and wires.
Product Details Ask For QuoteRB-R6F11 11Way Fused Car Relay Socket with Terminals Relays
RB-R6F11 11-Way relay socket with terminals includes 6 × 40A 12V 4-pin relays, 11 × blade fuses, 30 x relay terminals, and 22 x fuse terminals.
Product Details Ask For QuoteRB-R6F11-W1 11Way Pre-wired Relays and Fuses Relay Block Box
The 11-way relays and fuses relay block box includes 6×4-pin or 5-pin relays, 11×blade fuses, 30×relay terminals, 22×fuse terminals with pre-wired.
Product Details Ask For QuoteRB-R4F15-W1 15-Way Waterproof Car Relay Holder
RB-R4F15-W1 15-Way Waterproof Car Relay Holder includes 4×40A 12V 4-pin relays, 15×blade fuses, 30×relay terminals, and 20×fuse terminals with wires.
Product Details Ask For QuoteRB-R10F15 15Way Universal Fuse and Relay Box With Connector
RB-R10F15 15 Way Universal Fuse and Relay Box is 10 slots relay panel design and includes 50×relay terminals, 30×fuse terminals.
Product Details Ask For QuoteKH180 Series 12V 120A/200A 4Pin Automotive Relay
The automotive relay is a 4-pin relay, Nominal Voltage(VDC): 12V, Max Applicable Voltage (VDC): 15.6V, and Switching Current: 120A / 200A.
Product Details Ask For QuoteJD1914-2 12V 30A ON/OFF 4 Pin SPST Relay
The SPST relay is a 4Pin 12V 40A relay with a 30A fuse DC SPST fused relay normally open 1NO for car, motor and automobile.
Product Details Ask For QuoteWM686-250A 250A 12V Anti-Theft Disconnect Remote Battery Kill Switch Kit for Car
The 250A 12V anti-theft disconnect remote battery kill switch kit for cars boasts a heavy-duty design, negative installation for enhanced safety, and convenient remote control with two paired fobs.
Product Details Ask For QuoteWM686 12V 120A/200A 4Pin Remote Control Car Starter Relay Isolator Disconnect Battery Switch
12V 120A/200A 4Pin remote control car starter relay isolator disconnect Battery switch includes battery clip accessories with one or two locks.
Product Details Ask For QuoteDaier’s Relay & Relay Box
Versatile Relays, Dependable Control
Daier relays and relay boxes are engineered to provide reliable, high-performing, and safe switching within demanding electrical and electronic systems. Daier offers a comprehensive range of options, including relays with various contact configurations (SPDT, SPST, DPDT), a multitude of voltage options, and relay boxes that can house up to 24 individual relays. Many relay boxes offer environmental protection, to ensure long-lasting reliability, and are designed with integrated fuse and diode protection to simplify systems. Consider Daier relays and relay boxes for all applications where precise, reliable, and safe switching is required.
Key Features and Benefits
Typical Applications

Automotive Control Systems

Industrial Automation

Power Distribution Systems

Telecommunications Equipment

Renewable Energy Systems

Medical Equipment
Daier is committed to providing high-quality and reliable components. Daier relays and relay boxes are engineered to provide dependable and high performing switching and protection, with a focus on long lasting performance and enhanced safety. Please contact our expert team today to discuss your specific project requirements, explore customized solutions, or to request a personalized quote.
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