Micro switch with wire vs micro switch without wire-Unionwell—Professional Manufacturer of Micro Switches

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Micro switch with wire vs micro switch without wire

The difference between wired microswitches and wireless microswitches

2026-07-02

Micro switch with wire vs micro switch without wire

I、 Structural appearance differences
1. Micro switch without wire (bare switch/terminal version)
The main body only has metal plug terminals (quick plug terminals, solder pads) and no lead wires;
Compact size, standard micro motion appearance, exposed contact terminals;
Outgoing method: Customers can weld wires, plug terminals, and wiring harnesses themselves.
2. Micro switch with wire (outgoing micro switch)
Pre welded/injection molded finished wires are fixed before leaving the factory, and the length of the wire can be customized;
The wire and switch are sealed together, and the waterproof version will be sealed with glue;
The end can be directly wired, with terminals and plugs (2P/3P plugs).
II、 Installation and wiring method
Micro switches without wires: usually designed with pins (such as spring terminals, upright or bent terminals), requiring users to solder, cold press terminal crimping, or plug and unplug connections themselves. It is usually necessary to use M2 small screws to fix it on a smooth surface during installation, and it is recommended to equip washers to prevent loosening.
Micro switch with wire: Wires and cold pressed terminals (such as spring sleeves) are pre installed at the factory, using plug and unplug connections for convenient and fast wiring, without the need for on-site welding or complex terminal processing, greatly reducing the difficulty of wiring.
III、 Protection and Waterproof Performance
Standard version without wires: exposed terminals, no waterproofing, can only be used indoors in dry conditions; Waterproof bare switches also require customers to seal the wiring harness themselves, and the waterproof effect varies.
Waterproof micro movement with wire: usually has a higher overall protection level (such as IP67). The connection between the wire and the switch body has undergone special sealing treatment, which can effectively block the invasion of water and dust crossing the river, making it very suitable for use in
Used in harsh environments.

IV、 Cost and hour comparison
1. Material cost
Without wires: The unit price is lower, but additional purchases of wires, terminals, and heat shrink tubing are required;
O With wire: The unit price of the switch is higher, but it eliminates the need for purchasing wire accessories.
2. Labor costs
Without wires: an additional welding/pressing process, which requires high manual labor time;
O-Line: Directly assemble online, greatly saving labor.
V、 Applicable scenario differentiation
Choose micro motion without wires
1. The internal space of the device is compact and can be centrally wired;
2. The factory has automated welding equipment for large-scale production;
3. It is necessary to standardize the specifications and wiring of the wiring harness;
4. Direct soldering of home appliance controllers and control panel PCBs.
Select micro motion with wire
1. Waterproof equipment: washing machine, coffee machine, cleaning appliances, car seat switch;
2. No welding station, small batch assembly;
3. Split type structure, with a distance between the switch and the motherboard;
4. Vehicles, power tools, and outdoor equipment are required to be sealed and leak proof as a whole;
5. The finished product assembly is simple, reducing assembly defects such as virtual soldering and disconnection.
VI、 Maintenance and replacement
Non wired micro switch: If damaged, it often requires the use of a soldering iron for desoldering and re soldering, which requires a certain level of manual dexterity from the operator. In addition, temperature control should be taken into account during high-temperature welding.
Micro switch with wire: extremely easy to maintain. When the switch ages and is damaged, simply unplug the old terminal plug and replace it with a new switch, greatly reducing the downtime for equipment maintenance.
VII、 What is the difference between two-wire and three wire micro switches with wires
1. There are differences in construction. A three wire switch has two wires connected to a DC24V power supply, with the remaining wire being a signal wire. A two wire switch has one wire connected to a DC24V power supply, while the other wire is a signal wire.
2. There are differences in wiring, and the maintenance of a three wire switch requires correcting the circuit, which is much more troublesome than a two wire switch.
3. There are differences in performance, with two wire switches having higher leakage current and poorer anti-interference performance than three wire switches.

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