Finding the best relay block suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
![OLS 12-Slot Relay Box [6 Relays] [6 Blade Fuses] [Bosch Style Relays] [Easy Installation] [OEM Factory Look] - Fuse Relay Box for Automotive and Marine Use](https://images-na.ssl-images-amazon.com/images/I/51VDtJqMJLL.jpg)
Reviews
1. Universal Waterproof Fuse Relay Box Panel Cooper Bussmann ATV UTV RV Boat 4X4
Feature
Complete Waterproof Relay/Fuse Block - Fully loaded and Wired using high quality Cross-Link XLPE Automotive Wire and Picker brand relaysYou get five (5) fused 35 amp relays and five (5) additional constant fused circuits
All wires exit at the center of the box. Compact sealed unit: box is 4.5 x 3.25 x 3". Mounting brackets add 2" to the height.
Can be flush mounted or use the brackets that are included.
Approximately 3 feet on each wire. Single 8 gauge power wire. 80 amp capacity
Description
Universal Waterproof Fuse Relay Box Panel Cooper Bussmann ATV UTV RV Boat 4X4. (5) 35 amp Picker relays. (5) 30 amp fuses for relays and (5) 15 amp fuses for constant circuits. 12 gauge relay output wires. 16 gauge constant output wires. 18 gauge relay trigger wires. 16 gauge ground. 8 gauge power. The base and cover. Mounting brackets. Cover gasket. Instructions.2. 6 PACK 4-Pin Automotive 30A Fuse Relay Switch Set - 14 AWG Wire Harness 12V DC SPST Bosch Style Car Relays with Interlocking Socket Holder Block 14 Gauge Pigtails Wires
Feature
12 Volt DC 4-PIN 30 Amp Fuse Relay - MAX 14V DCHeavy Duty 14 AWG Wiring Harness for the MAIN contact - pin 30;pin 87
Equipped with a 30Amps blade fuse, but the relay can switch to 40Amps
Package Content: 6 X 4-PIN relay switch & wiring harness
1 Year Warranty, 30-day money-back guarantee for any reason.If you have any question,please feel free to contact us by Email
Description
Easy to useHeavy Duty 14 AWG Wiring Harness for the MAIN contact - pin 30 ; pin 87
Equipped with a 30Amps Fuse, but the relay can switch to 40Amps
Working Temperature: -40C ~ +125C (no condensation)
14AWGPin 87Red
14AWGPin 30Blue
16AWGPin 85Black
16AWGPin 86White
Package Content: 6 X 4-PIN relay switch & wiring harness
Please Note:
--- Installer of this product must have a good understanding of automotive electronics,systems, and procedures.
--- For your and others' safety,let professional technicians to install the equipment.
3. 5 Pack - EPAuto 30/40 AMP Relay Harness Spdt 12V Bosch Style
Feature
40A/30A high switching capability.Heavy-duty impact molded relay socket with 5 WIRESWhite (common), Black (normally closed), and Yellow (normally open).
Package Include: 5 relays + 5 relay sockets with wires.
Safety UL Flame retardant 9" wires for the main contact.
Description
Contact Capacity:
Normal switching Capacity (res.load):- NO 40A 14VDC
- NC 30A 14VDC
Max. switching current: 40A
Max. switching voltage: 30VDC
Max. switching power: 560W
Characteristic Data:
Initial contact resistance (at 6VDC 1A): 50m Max.Operate time (at nominal volt.): 10 msec. Max.
Release time (at nominal volt.): 5 msec Max.
Initial insulation resistance: 100M Min. (DC500V)
Initial dielectric strength:
- Between open contacts: AC500V, 50/60 Hz 1Min.
- Between coil and contact: AC500V, 50/60 Hz 1Min.
Vibration resistance:
- Functional: 10 ~ 55Hz at double amplitude of 1.5 mm
- Destructive: 10 ~ 55Hz at double amplitude of 1.5 mm
Shock resistance:
- Functional: 20G Min.
- Destructive: 100G Min.
Endurance (operations):
- Mechanical (at 7,200 ops./h): 10,000,000
- Electrical (at 600 ops./h): 100,000
Ambient Temperature: -40C ~ +125C (no condensation)
4. 6 Pack - OLS 12V DC 40/30 Amp 5-Pin SPDT Automotive Relay Harness Set (Bosch Style with Interlocking Harnesses)
Feature
User Manual available for download under Product Information DetailsBosch style 12VDC (14V Max) 5-Pin SPDT (Single Pole Double Throw) Relay with 40A/30A High Switching Capability.
Interlocking design relay socket harness base for easy cable management & organization.
Heavy duty 14AWG wires for the main contact and pre-wired with 6" pigtail leads.
Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Yellow - Output N/C (87a), and Blue - Output N/O (87).
Description
A pack of six Bosch style 5 pin SPDT 12V, 40/30 Amp electrical relay with pre-wired relay socket harness. This relay has a universal application and can be used in automotive setups, car sound systems, security systems, and various other applications. Relay comes with mounting tab for easy installation. The interlocking design on the harness allows multiple harnesses to be coupled together for organization and ease of setup.
Interchangeable/Compatible with:
All automobiles and devices equipped with a 12 Volt DC power source.
Features:
- Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay with 40A/30A High Switching Capability.
- Interlocking design relay socket harness base for easy cable management & organization.
- Pre-wired with 6" pigtail leads.
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Yellow - Output N/C (87a), and Blue - Output N/O (87).
- Instruction Manual Included
Product Content:
- 6 x Relay
1 Year Warranty
Have a Question? Call Us Toll Free 1-855-LED-ONLINE (1-855-533-6654)
5. OLS 12-Slot Relay Box [6 Relays] [6 Blade Fuses] [Bosch Style Relays] [Easy Installation] [OEM Factory Look] - Fuse Relay Box for Automotive and Marine Use
Feature
SUPPORTS RELAYS & FUSES- Safely stores up to (5x) Bosch Style 40/30A 5-Pin Relays/30A 4-Pin Relays (compatible with 0.25" Pins), (1x) RTT7121A 4-Pin Relay, and (6x) ATO/ATC Blade Fuses.INSTALLATION IS A SNAP- The Snap-Fit upper and lower cover cases allow easy access for relays, fuses, and wires.
ACCESSORIES INCLUDED- Metallic pins are included so you can effortlessly swap out relays and fuses from the back of the fuse relay box.
VERSATILE MOUNTING OPTIONS- Since most modern vehicles have angular/sloping engine bays or trunk areas, we engineered the mounting legs to snugly adhere to these surfaces; a rubber spacer is also included so you can mount the automotive relay box on flat surfaces too.
OEM-STYLE PROTECTION- Tidy up your vehicle's engine bay by securely stowing away your relays and fuses in this sturdy relay box for a clean factory look backed by unbeatable protection.
Description
The ultimate storage solution for your vehicles relays and fuses
With the capacity to house up to five Bosch style 40/30A 5-Pin relays/30A 4-Pin relays, one RTT7121A 4-Pin relay, and six ATO/ATC blade fuses, this versatile relay box delivers unparalleled protection for the fuses and relays in your truck, SUV, car, bike or boat.
Hassle-free maintenance
Our user-friendly relay block has easy-to-use snap-fit clips, allowing quick access to relays, fuses and wires. Simply crimp your wires to the included metallic pins, place them into the desired slots located on the backside of the relay box, and direct the wires to the cable opening holes and snap the lid shut.
Mounts on angled, sloped and flat surfaces
Most modern vehicles have engine bays or trunk spaces with angled or sloping surfaces, making it difficult to mount many other relay boxes. To enable trouble-free mounting on these surfaces, we engineered our relay block with uneven mounting supports. Alternatively, the included rubber spacer lets you mount the fuse relay box on flat surfaces.
Whether youre searching for a relay and fuse storage solution for your automotive or marine application, clean up the clutter and protect your investment with the OLS Relay and Fuse Box.
Features:
- Durable construction
- Holds up to 6 individual relays and 6 ATO/ATC blade fuses
- Snap-Fit Upper and Lower Cover Cases for easy access
Package Content:
- 1 x OLS Economical Relay Box
- 4 x Accessories Pack:
- 1 x Spacer & 2 x Sets Bolts/Nuts/Washers
- 25 x Relay Female push-on wire terminals
- 12 x ATO Blade Fuse Female push-on wire terminals
- 2 x Large & 2 x Small Female Push-On wire terminals
Note: Wires not included
6. DIY Waterproof Fuse/Relay Block Panel Car Truck ATV UTV RV Boat 4X4 Marine w/ Relays
Feature
Complete with terminals, seals, TPA's, (3) 20 Amp Relays and (3) 20 Amp Fuses - see details belowAccepts Delphi Metri-Pack 280 terminals, cable seals, and cavity plugs
IP67 sealed units can be installed virtually anywhere on the vehicle and stand up to roadsplash and salt spray.
The elimination of internal bussing allows user to customize their own circuitry, with direct wire-to-component connections.
Compact sealed unit: box is 3.2 x 1.5 x 2.9" (80 x 38 x 74mm)
Description
DIY Relay/Fuse Block - Littelfuse HWB18 Complete with terminals, seals, TPA's, Relays and Fuses Comes with the following: 20 amp relays 20 amp fuses The base and cover Cover gasket Mounting bracket (30 degree angle) TPA's 12-14 ga. terminals 16-18 ga. terminals 16-18 ga. wire seals 14 ga. wire seals Hole plugs7. 6 Pack OLS 30A Fuse Relay Switch Harness Set - 12V DC 4-Pin SPST Automotive Relays 14 AWG Hot Wires
Feature
Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
12VDC (14V Max) and 30A High Switching Capability.
Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).
Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
Description
The OLS PSZACCEPS179R 4-pin Bosch Style SPST 12V DC 30A automotive relay features a built in 30A ATO/ATC blade fuse. The built in fuse holder on the automotive relay eliminates the need of a separate fuse holder in-line of the circuit, saving both space and money. In addition to the build in fuse, the purchase of this relay includes the relay harness, which features an interlocking function for ease of grouping multiple relays together. Metal mounting tab on the electrical relay promotes easy installation. Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
Interchangeable/Compatible with:
All automobiles and devices equipped with a 12 Volt DC power source.
Features:
- Built in fuse socket with included 30A blade fuse.
- Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
- 30A High Switching Capability.
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).
- Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
Product Content:
- 6 x Relays
1 Year Manufacturer Warranty
Have a Question? Call Us Toll Free 1-855-LED-ONLINE (1-855-533-6654)
8. 5 PACK 40/30 AMP Automotive Waterproof Relay Switch Set - Heavy Duty 12 AWG Wire Harness 12V DC 5-PIN SPDT Bosch Style Car Relays with Interlocking Socket Holder Block 12 Gauge Pigtails Wires
Feature
12 Volt DC Relay - MAX 14V DC,40a/30a high switching capabilityExcellent waterproof performance,high quality in any weather conditions
Heavy Duty 12 AWG Wiring Harness for the MAIN contact - pin 30;pin 87;pin 87a
Package Content: 5 relays + 5 relay sockets and relay wiring harness
1 Year Warranty,30-day money-back guarantee for any reason.If you have any question,please feel free to contact us by Email
Description
iRhapsody 5-PIN 40/30 AMP Waterproof Relay SetOur Advantage:
Easy to Use: Metal mounting tab is present on the relay for ease of installation
Heavy Duty 12 AWG Wiring Harness for the MAIN contact - pin 30, pin 87, pin 87a
Excellent water-repellent properties
40A/30A high switching capability
Working Temperature: -40C ~ +125C (no condensation)
12AWGPin 87aYellow
12AWGPin 87Blue
12AWGPin 30Red
16AWGPin 85Black
16AWGPin 86White
Package Content: 5 relays + 5 relay sockets and relay wiring harness
Please Note:
--- Installer of this product must have a good understanding of automotive electronics,systems, and procedures.
--- For your and others' safety,let professional technicians to install the equipment.
If you like our product and service,please leave positive review for us.
Many thanks!
9. MicTuning 12-Slot Relay Box,6 Relays,6 ATC/ATO Fuses Holder Block with 41pcs Metallic Pins for Automotive and Marine Engine Bay
Feature
Large Capacity Holder Box - A clean storage for many projects, tightly holds up to 5 Bosch-style 5pin relay and a RTT7121 4pin Relays, and 6 ATC/ATO blade FusesSpecial Mounting Legs - High and low legs are designed to snugly adhere to modern angular engine bays or trunk areas, for the flat surface, please add rubber pad yourself to level out the relay box (DIY installation)
2 Clip-Locks Cover - Easy access to the relays and fuses and securely keep them in place, allowing you to quickly maintain or replace the burnt one, also good protection from water splashes, dust and debris
Elegant & Durable - Made of PA6 rating Flame retardant shell, durable and safe, with precise cutouts of each slots and reserved an Arc-outlet on the edge, it keeps all your wiring tidy and good look as OEM factory manufactured
Universal Fitment - Suitable for ALL vehicles, 4X4 Offroad Jeep SUV UTV ATV RV Pickup Truck Trailer Camper Marine Boat, etc. Guarantee with 100% Satisfaction, please buy it with confidence and feel free to contact us if there's any question
Description
MICTUNING 12-Slot Large Capacity Relay Fuse Box - Holds 6 Relays & 6 ATC/ATO Fuses for Automotive and Marine UseIt is made by PA6 retardant material, can offer safe and perfect protection for the fuses and relays in your engine bay, fits to most 4X4, offroad, suv, utv, atv, pickup, truck, marine boat, etc.
Easy to assemble and install, it gives you a clean and tidy look almost like factory OEM appearance. All the necessary connecting pins are included for easy hook up, and the design of cable opening hole is the outlet for all wires that allows you to entangle them via one main jacket, well togethering and better shields against water splashes, dust and debris.
Simple Mounting Guide
1. Crimp the metallic pins to proper wires (wires not included)
2. Insert the tied wire into the corresponding slot from the back of the relay box.
3. All wires can get out from the cable opening hole, then close the back lid.
Warm tips
When you are going to place the crimped wires into the slots pls be careful the direction of the pins.
All cripmed wires should be well done because to remove them from slots will be a big project.
To make your fuses and relay organized, now your turn!
Please feel free to contact us if you have any confusions.
Package List:
1x Relay Fuse Box
41x Metallic Pins
10. HELLA H84988001 4-Way Mini Relay Box Kit
Feature
4-way mini relay box kitHELLA quality and performance
See diagram for size
Conveniently packaged
One Year Limited Warranty
Description
4-Way Mini Relay Box Kit11. COOPER BUSSMANN - 15303-4-0-4 - FUSE RELAY BLOCK, MINI, REAR TERMINAL
Description
mini fuse relay block.12. Cooper Bussmann 15303-2-2-4 Mini Fuse Panel 5 Micro Relays & 10 Mini Fuses Cover Included
Feature
Fuse Holdersfuse Type: Mini Fuses; Fuse Holder Type: Fuse Block.Description
Cooper Bussmann Eaton 15303-2-2-4 Mini Fuse Panels ; Category: Power Distribution Modules ; Manufacturer: Cooper Bussmann Eaton ; Color: Black ; Fuse Type: Mini Fuses ; Fuse Holder Type: Fuse Block ; Current Rating: 30A Max/Outlet ; Fits 5 Micro Relays And 10 Mini Fuses Or >Mini Circuit Breakers ; Terminals: #10-32 Input Studs, Nickel Plated Brass ; Accepts Wire Sizes 22-12 Awg ; Includes Nuts Assembled With Tall Cover ; Weather-Tight Power Distribution Module (Pdm) ; Tall Cover Fits Fuses And Circuit Breakers.13. 10 Way Blade Fuse Box 80A 5-Pin Relay Socket Base Fuse Block for Automotive Fuses Cover
Feature
5-Pin Fuse Relay Box :12V 80A middle size blade fuse.Package Includes: 1 piece fuse box,10 pieces blade fuses,4 pieces relays
Description
Specification:5-Pin Relay : 12V 80A
Middle size blade fuse.
Current : 1A-40A
Universal for automotive.
Material: Plastic
Size: Approx. 120*105mm/4.7*4.1 Inch
Package Includes:
1 Piece Fuse Box
10 Pieces Blade Fuses
4 Pieces Relays