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Flat wire receptacle with lock | 1–2.5 mm² | 6.3 mm | non-insulated | brass | DJ622-A6.3B | IMP6,3

Code: IMP6,3

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IMP6,3 (DJ622-A6.3B) is a non-insulated brass crimp flat receptacle with lock for 1–2.5 mm² wires, designed for 6.3 mm tabs in heaters, thermostats, switches, relays and vehicle connector housings. Fast installation without soldering and a detachable connection.

Product description

Flat wire receptacle with lock | 1–2.5 mm² | 6.3 mm | non-insulated | brass | DJ622-A6.3B | IMP6,3

IMP6,3 (DJ622-A6.3B) is a non-insulated brass flat receptacle (female terminal) with a locking tongue, designed to connect 1–2.5 mm² wires to 6.3 mm wide flat tabs. The lock snaps into a plastic connector housing, so the terminal does not work loose under vibration.

Key point:
One of the most widely used terminals in household appliances, heaters, switches, relays and vehicle wiring. When a burnt or oxidised receptacle on a 6.3 mm tab needs replacing, a properly crimped new receptacle restores a reliable contact without soldering.

Wire cross-section
1–2.5 mm²

Tab width
6.3 mm

Lock
Yes – for connector housing

Installation
Crimped

Operating principle

Insulation is stripped from the wire, the conductor is placed in the crimp zone and crimped with pliers designed for non-insulated terminals. The receptacle has two crimp zones: the front wings grip the conductor for a low-resistance electrical contact, and the rear wings grip the insulation and protect the conductor from breaking at the terminal.

The crimped receptacle is pushed onto a 6.3 mm flat tab. Its spring edges press on the tab and maintain constant contact force, so the connection does not loosen from vibration or temperature changes.

The locking tongue on top is designed for multi-way 6.3 mm connector housings: once pushed into the housing cavity, the tongue latches and prevents the terminal from backing out. As the receptacle is non-insulated, insulation is provided by the connector housing, an insulating cover or heat-shrink tubing.

Why IMP6,3?
It suits both single connections to a 6.3 mm tab and assembly into automotive or appliance connector housings – the lock ensures the wire will not pull out of the connector.

Technical specifications

Product type	Flat receptacle (female terminal) for wire
Code	IMP6,3
Manufacturer model	DJ622-A6.3B
Material	Brass
Wire cross-section	1–2.5 mm²
Tab width	6.3 mm (standard 6.3×0.8 mm tab)
Lock	Yes – locking tongue for connector housing
Insulation	None (non-insulated)
Connection method	Crimping, open-barrel zones for conductor and insulation
Suitable wires	Copper stranded and solid wires
Sales unit	1 pc

Main functions

Locking tongue – the receptacle latches in the connector housing and does not fall out under vibration.
Double crimp zone – the conductor gets an electrical contact, the insulation gets mechanical support.
Detachable connection – a device or component can be replaced without cutting the wire.
Standard 6.3 mm size – fits most flat tabs on household and industrial equipment.
Crimp connection – installation without soldering, fast and repeatable.
Wide wire range – 1–2.5 mm² covers the most common control and power circuit wires.

Where is it used?

Water heaters, boilers and heating elements
Thermostats, thermal relays and overheat protectors
Household appliance repair (washing machines, dishwashers, ovens)
Rocker switches, push-buttons and signalling devices
Relays and contactors with flat terminals
Vehicle, camper and agricultural machinery connector housings (6.3 mm series)
Fan, pump and capacitor terminals

Use by need

For appliance repairers.
Quickly replace burnt receptacles on heating elements and thermostats without soldering.

For panel and equipment builders.
A standard, low-cost component for series wire preparation and assembly.

For auto electricians.
A neat detachable connection for switches, relays and additional equipment.

Practical application

If a water heater thermostat receptacle is darkened or burnt, cut the wire back to clean copper, strip about 5–6 mm of insulation, crimp a new IMP6,3 receptacle and slide heat-shrink tubing over it. Then push the receptacle firmly onto the thermostat tab – the connection is restored without soldering or replacing the thermostat.

Pros

Lock for connector housing
Standard 6.3 mm size
Suits 1–2.5 mm² wires
Installation without soldering
Connection can be disconnected and reconnected
Compact, fits tight spaces
Low price for series use

Cons / limitations

Non-insulated – in open locations additional insulation is required (heat-shrink or cover)
Not suitable for wires smaller than 1 mm² or larger than 2.5 mm²
Proper crimping requires suitable crimping pliers
Other tab widths (2.8 mm, 4.8 mm) require a matching receptacle
Can only be removed from a connector housing by depressing the locking tongue with a thin tool

Safety and installation notes

Disconnect power and verify absence of voltage before work.
Crimp with pliers designed for non-insulated terminals – do not use ordinary pliers.
After crimping, pull the wire – it must not slip out of the receptacle.
Insulation must not enter the conductor crimp zone.
Insulate a non-insulated receptacle in accessible locations with heat-shrink tubing or a cover.
Do not clean oxidised or burnt receptacles – replace them.

Quick selection guide

1–2.5 mm²

6.3 mm

Non-insulated

With lock

Suitable when you need:

to connect a wire to a 6.3 mm flat tab
to replace a burnt or oxidised receptacle
a detachable connection without soldering
a receptacle that latches into a 6.3 mm connector housing

Check before use:

that the tab width is really 6.3 mm
that the wire cross-section is 1–2.5 mm²
that you have crimping pliers for non-insulated terminals

Important reminder: a non-insulated receptacle does not replace insulation – in accessible locations it must be additionally insulated.

FAQ

What wire sizes does IMP6,3 fit?
Copper wires from 1 to 2.5 mm².

What tab does it fit on?
A standard 6.3 mm wide flat tab.

Is soldering needed?
No, the wire is crimped with crimping pliers.

How do I insulate a non-insulated receptacle?
Slide heat-shrink tubing onto the wire before crimping, or use a 6.3 mm insulating cover.

What is the lock for?
It latches the receptacle in a plastic connector housing so the wire does not pull out from vibration or tension.

How do I remove the receptacle from a connector housing?
Press the locking tongue through the housing opening with a thin tool and pull out the wire.

Flat wire receptacle with lock 1–2.5 mm² | 6.3 mm | DJ622-A6.3B | IMP6,3

IMP6,3 (DJ622-A6.3B) is a non-insulated brass crimp flat receptacle with lock for 1–2.5 mm² wires, designed for 6.3 mm tabs in heaters, thermostats, switches, relays and vehicle connector housings. Fast installation without soldering and a detachable connection.

Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

CE certificate – a guarantee of safety, quality, and compliance

This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.

CE certification means that the product has been evaluated according to the main criteria:

Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purpose

CE marking allows this product to:

be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environments

The CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.

What does this mean for you as a buyer?

Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions