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electrical center b2c
Single Double Row Zero Earth Terminal Block, Brass 3‑25 Holes Terminal Blocks for Distribution Cabinet
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Terminal Blocks for Distribution Cabinet，Large Current Copper Bus Bar Terminal Block
Brass Neutral Ground Terminal Bar, Single & Double Row Zero‑Earth Copper Terminal Block 3/5/7/10/12/15/17/19/21/25 Holes for Electrical Distribution Box
This single‑row and double‑row zero‑earth terminal block is brass‑made high‑current copper bus bar for electrical distribution cabinets. It covers multiple hole counts:3,5,7,10,12,15,17,19,21,25 holes, with bar thickness 15/20/25/30mm specifications. Galvanized anti‑oxidation screws and washer crimp structure deliver firm wire clamping without slipping threads. Widely used for neutral and ground wiring inside household and industrial electrical cabinets.
Raw Material & Surface Treatment
Conductive main bar adopts high‑quality brass material.
Surface electroplating treatment prevents oxidation and corrosion.
Extend service life for long‑term indoor cabinet working environment.
Mechanical Clamping Performance
Equipped with galvanized anti‑oxidation fastening screws.
Washer crimp‑type clamping structure improves wire fixation.
Effectively avoid thread slipping and loose wiring connections.
Rich Specification Coverage
Support single‑row and double‑row structural versions.
Available hole options:3,5,7,10,12,15,17,19,21,25 holes; thickness:15/20/25/30mm.
Fit zero‑line neutral bar and earth ground bar two types for cabinet wiring.
Application Scenarios
Designed for distribution box, industrial cabinet, electrical panel internal wiring.
Handle large‑current neutral wire and ground wire convergence connection.
Compatible with household MCB, RCCB, IP65 waterproof distribution cabinet assemblies.
FAQ
Q1: What is the difference between zero‑bar and earth‑bar?
A: Zero bar is for neutral N wire connection; earth bar is for protective ground PE wire connection, they cannot be mixed in TN‑S wiring system.
Q2: Single‑row vs double‑row terminal block, how to select?
A: Single‑row for ordinary wiring space; double‑row for more wiring points under limited cabinet installation space.
Q3: What wire size can these brass terminal blocks accept?
A: Max wire capacity depends on bar thickness; 15‑30mm copper bar matches from small household wire up to large‑current industrial cable.
Q4: Can this terminal block be used together with US 120V RCCB residential panel?
A: Yes, it fits inside distribution cabinet for neutral and ground wiring matching 120V RCCB breaker assembly.
Specification
| Attribute Name | Value |
|---|---|
| Product Name | Zero‑Earth Brass Terminal Block, Single & Double Row Copper Bus Bar |
| Material | Brass Main Bar, Galvanized Screw |
| Surface Process | Electroplating anti‑oxidation treatment |
| Structure Type | Single Row / Double Row |
| Type Variant | Neutral Zero Bar, Ground Earth Bar |
| Available Hole Count | 3,5,7,10,12,15,17,19,21,25 Holes |
| Copper Bar Thickness | 15mm,20mm,25mm,30mm |
| Clamping Design | Washer crimp fastening, anti‑slip thread |
| Application | Distribution Box, Industrial Cabinet, Household Electrical Panel, Match MCB / RCCB assembly |
| Google Product Category | 2272 (Terminal Blocks) |
Care Instructions
Care Instructions
