---
product_id: 20427274
title: "Terminal Blocks 20A - 65A"
brand: "blue sea systems"
price: "RM62"
currency: MYR
in_stock: true
reviews_count: 8
category: "Blue Sea Systems"
url: https://www.desertcart.com.my/products/20427274-terminal-blocks-20a-65a
store_origin: MY
region: Malaysia
---

# 30A current rating Closed back insulation Isolated screw pair circuits Terminal Blocks 20A - 65A

**Brand:** blue sea systems
**Price:** RM62
**Availability:** ✅ In Stock

## Summary

> ⚡ Connect Smart, Stay Secure – Power Your Projects Like a Pro!

## Quick Answers

- **What is this?** Terminal Blocks 20A - 65A by blue sea systems
- **How much does it cost?** RM62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/20427274-terminal-blocks-20a-65a)

## Best For

- blue sea systems enthusiasts

## Why This Product

- Trusted blue sea systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Blue Sea Systems quality with UL certification and 4.7-star rating from 1,000+ users.
- • **Safety First, Always:** Closed back design fully insulates power from mounting surfaces—no accidental shorts.
- • **Modular Circuit Control:** Each screw pair acts as an isolated circuit, giving you precise wiring management.
- • **Power Up with Confidence:** Handles up to 30 Amps AC/DC at 600V for robust, reliable connections.
- • **Customizable Connectivity:** Jumpers (sold separately) let you easily create common circuits for streamlined setups.

## Overview

Blue Sea Systems Terminal Blocks deliver professional-grade electrical connections with a 30 Amp, 600V rating. Featuring a closed back design for full insulation and isolated screw pairs for precise circuit control, these blocks are UL certified and highly rated by industry users. Perfect for managers and engineers who demand safety, reliability, and modular flexibility in their electrical setups.

## Description

Closed back design completely insulates power from the mounting surface Each screw pair is one isolated circuit Jumpers allow creation of common circuits.

Review: Good quality as expected from them - Great construction and they work
Review: Quality! - Worked out great. Blue Sea for the win!

## Features

- 4 Circuit 30 Amp AC/DC 600V AC/DC Terminal Block
- Closed back design completely insulates power from the mounting surface
- Each screw pair is one isolated circuit
- Jumpers allow creation of common circuits (sold separately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000K2K6KM |
| Best Sellers Rank | #14,587 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Ground Circuit Terminal Blocks |
| Brand Name | Blue Sea Systems |
| Color | Multicolor |
| Connector Type | Screw |
| Current Rating | 30 Amps |
| Customer Reviews | 4.7 out of 5 stars 1,061 Reviews |
| Global Trade Identification Number | 00632085025045 |
| Included Components | Great Product |
| Item Dimensions W x H | 1.31"W x 0.75"H |
| Item Height | 0.75 inches |
| Item Type Name | Great Product |
| Item Weight | 0.12 Pounds |
| Manufacturer | Blue Sea Systems |
| Material | Plastic |
| Material Type | Plastic |
| Model | 2504 |
| Mounting Type | Surface |
| Number Of Contacts | 8 |
| Number Of Poles | 4 |
| Number of Positions | 12 |
| Specification Met | UL |
| UPC | 632085025045 |
| Unit Count | 1.0 Count |
| Voltage | 600 Volts |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Blue Sea Systems
- **Color:** Multicolor
- **Connector Type:** Screw
- **Current Rating:** 30 Amps
- **Material:** Plastic
- **Mounting Type:** Surface
- **Number Of Contacts:** 8
- **Number Of Poles:** 4
- **Product Dimensions:** 1.31"W x 0.75"H
- **Voltage:** 600 Volts

## Images

![Terminal Blocks 20A - 65A - Image 1](https://m.media-amazon.com/images/I/61WEjvJYwvL.jpg)
![Terminal Blocks 20A - 65A - Image 2](https://m.media-amazon.com/images/I/71ggoSr6mtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality as expected from them
*by S***R on November 8, 2025*

Great construction and they work

### ⭐⭐⭐⭐⭐ Quality!
*by E***S on August 20, 2025*

Worked out great. Blue Sea for the win!

### ⭐⭐⭐⭐⭐ Blue Sea builds nice stuff!
*by A***F on January 20, 2024*

You end up spending a little more for a Blue Sea product but they almost always offer a high quality part you won't have to worry about. This terminal block is made from a better-than-most plastic that doesn't split or crack when fastening it down. The terminal screws hold and don't strip out easily. It's amazing how fast the cost of a wiring project can balloon out of control but using quality parts will provide a safer system than running generic "unknown" parts.

## Frequently Bought Together

- Blue Sea Systems Terminal Blocks 20A - 65A
- Blue Sea Systems 2300 150 Amp Common BusBar with 10 screws and a cover
- Blue Sea Systems 5025 ST Blade Fuse Block 6 Circuit with Ground and Cover

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---

*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-16*