Description

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Product Overview

Single Pole One Inlet Eight Outlet is a high-density distribution block that takes one incoming line and splits it into eight independent outgoing branches on a single pole. It is built for the outgoing side of single-phase distribution boxes, metering cabinets and centralized control cabinets, where live or neutral has to be fanned out to eight separate circuits from one point.

Fanning eight circuits off one line with individual joints is where a cabinet starts to go wrong. Eight separate connections mean eight screws that each have to be stripped, inserted and torqued on site, and as soon as the branch wires begin to cross between poles, the clearance that keeps a phase-to-phase short away is gone.

This block replaces those eight joints with one tinned copper busbar and eight screw-clamped outlets. The body is a single-pole module, so two or more units can be ganged side by side on the rail to carry live and neutral runs in one clean row, and a transparent protective cover closes over the terminals so the busbar stays covered while every circuit remains visible for tracing.

Technical Specifications

Standard configuration for the single-pole 1-in / 8-out version. Confirm the wire ranges and the current rating against your panel schedule before the order is released.

Parameter	Value
Configuration	1 inlet / 8 outlets, single pole
Inlet Wire Range	10 mm² – 70 mm² (copper)
Outlet Wire Range	2.5 mm² – 16 mm² (copper)
Rated Current	Follows the configured inlet cross-section. Series models are published at 80 A total input, 6 A maximum per outlet - confirm the figure for this version
Rated Voltage	400 V AC (series value - confirm against your system)
Terminal Type	Screw-clamped cage with captive clamp plate and anti-loosening lock washer
Screw Torque	0.8 N·m – 1.0 N·m
Mounting	35 mm DIN rail (snap-on) or direct screw fixation
Poling	Single pole module; gang side by side for multi-pole runs
Conductor	High-conductivity copper alloy, tin-plated
Housing Material	Flame-retardant engineering plastic, UL94 V-0
Protective Cover	Transparent, with circuit labelling spaces at every outlet
Operating Temperature	-25 °C to +85 °C
Ingress Protection	IP20 touch-safe
Design Standard	IEC 60947-1 and IEC 60947-7-1
Customization	OEM / ODM per customer drawings; outlet labelling and pole marking to order
MOQ	Depends on configuration; trial orders negotiable
Quality Guarantee	12–24 months from shipment date
Manufacturing Standard	ISO 9001 quality management system
Packaging	Standard export packaging
Delivery Ports	Ningbo Port / Shanghai Port
Quote Turnaround	Within 24 hours

Core Advantages

Four design points decide whether eight branches can be laid out cleanly in a crowded single-phase enclosure.

Eight Screw-Tightened Outlets On One Busbar

All eight outlets clamp onto the same tinned copper busbar, so the eight branch joints that used to sit at eight separate points become one factory-terminated bar. Each outlet takes a captive clamp plate with an anti-loosening lock washer and is torqued to 0.8–1.0 N·m, which is what stops a joint from drifting loose under vibration and thermal cycling.

Modular Body Gangs Side By Side

The block is a single-pole module rather than a fixed multi-pole block. Live and neutral runs are built by ganging two or more units in one row on the rail, and a run is extended later by adding a module at the end of the row instead of rewiring what is already there.

Transparent Cover With Labelled Circuits

A transparent protective cover closes over the terminals. It keeps the busbar and the screw heads covered during inspection, and because the cover is clear, a circuit can be traced by eye without taking it off. Every outlet carries a labelling space for its own circuit number or load name.

Compact Footprint For Crowded Meter Boxes

Eight branches on one body take a fraction of the volume that eight individual joints need, and the DIN rail footprint is shorter than two or three separate blocks. Where box depth is already used up by the meter, that is what decides whether the outgoing side fits in one clean row.

Wire Cage Terminal vs Traditional Brass Terminal

The difference shows up as soon as the first wire goes in, and again at the first re-torque.

Point Of Comparison	Screw-Clamped Cage Terminal (This Block)	Traditional Brass Post Terminal
Cable entry	Conductor enters an open cage from the front and is clamped under a captive plate	Conductor is wrapped or looped around a round post before the screw bites
Thin branch wires (2.5–16 mm²)	Clamp bears on the full conductor, so the wire cannot slide out from under the screw head	Thin wire can be pushed aside by the screw head and ends up on partial contact
Contact area	Broad face contact across the full width of the cage	Point contact at the tip of the screw
Anti-loosening	Lock washer holds torque through thermal cycling	Re-torquing becomes a routine maintenance item
Eight branches on one pole	One busbar carries all eight outlets	Eight separate joints and eight chances of a loose connection
Wiring layout	Branches exit in one labelled row	Wires cross between poles, closing the clearance that keeps a phase-to-phase fault away

Professional Production Process

Every block follows the same five steps, and the electrical tests are recorded per batch.

Busbar stamping and forming - copper bar is cut, punched and formed to the drawing.

Surface treatment - the tin plating confirmed for the order is applied before assembly, so the contact faces are protected before the block is built up.

Housing moulding - the single-pole body is moulded in flame-retardant engineering plastic to the UL94 V-0 rating.

Assembly - the busbar, the eight outlet clamps and the screw terminals are seated in register, then the transparent cover is fitted.

Testing - continuity, contact resistance and electrical strength are checked across all eight outlets, with results recorded per batch.

Material & Surface Treatment Options

Two material decisions are worth settling before the order is released.

Conductor And Terminal Parts

The busbar and the terminal hardware are high-conductivity copper alloy with tin plating. The plating is what keeps the contact faces from oxidising in a damp or warm enclosure, and it is also part of why the joint stays stable when it is re-torqued on site. A different plating is set at order stage against the drawing.

Flame-Retardant Housing

The single-pole body is moulded in flame-retardant engineering plastic rated UL94 V-0, and the block is rated from -25 °C to +85 °C. That range covers indoor distribution boxes as well as the warmer interior of a control cabinet. Confirm the exact plastic grade if your specification names one.

Application Scenarios

Three places where a single-pole 1-in / 8-out block earns its rail space.

Single-Phase Distribution Boxes And Meter Cabinets

Where one incoming line has to feed eight outgoing circuits - lighting, socket and appliance runs in a residential or light commercial board - the block keeps the outgoing side in one labelled row instead of a fan of loose joints, and every circuit gets its own outlet and its own marking.

Centralized Control Cabinets And Live / Neutral Splitting

In control cabinets one pole is often fanned out to many devices. Ganging two modules side by side on the rail gives a live row and a neutral row on the same footprint, which is the layout panel builders want where branch conductors have to stay clearly separated from each other.

Solar Combiners, Lighting Control And Branch Panels

The same block is used for 8-string solar combiner outputs, 8-circuit LED lighting control and commercial 8-branch distribution panels, where up to eight independent outputs have to be grouped at one point under one cover.

Frequently Asked Questions

Q: What is a single pole 1-in / 8-out distribution block used for?

A: It splits one incoming line into eight independent outgoing branches on a single pole. Typical use is the outgoing side of a single-phase distribution box, a metering cabinet or a control cabinet where several circuits have to be grouped at one point.

Q: What wire sizes does it accept?

A: Incoming conductors from 10 mm² to 70 mm² and outgoing branch conductors from 2.5 mm² to 16 mm², in copper. Confirm the range against your panel schedule before the order is released.

Q: What is the rated current?

A: The rating follows the configured inlet cross-section. Other models in this series are published at 80 A total input with 6 A maximum per outlet. Send your load schedule and we will confirm the figure for this version.

Q: Can two blocks be used together for live and neutral?

A: Yes. The body is a single-pole module, so two or more units gang side by side in one row on a 35 mm DIN rail. Live and neutral can then be laid out as separate rows on the same rail, which keeps branch conductors from crossing.

Q: Does it come with a cover?

A: Yes. A transparent protective cover closes over the terminals and screw heads. It keeps the busbar covered during inspection while leaving the circuits visible, and every outlet has a labelling space for its circuit number or load name.

Q: Do you support customization, and what is the MOQ?

A: Outlet labelling, pole marking and mounting can be produced to your drawing under OEM or ODM terms. MOQ depends on the configuration and any tooling involved, and trial orders for a new project are negotiable, with volume pricing at higher tiers.

Q: How is it tested and shipped?

A: Continuity, contact resistance and electrical strength are checked across all eight outlets, with results recorded per batch. Units ship in standard export packaging and the nearest ports are Ningbo and Shanghai. Send your drawing and quantity for a quote within 24 hours.