Inductive Proximity Sensor SN04-N Normally Open Detection Approach Switch NPN NO with TL PL SN Bracket (Blue, 4 Pack)
- Inductive Proximity Switch Type: SN04-N, 3 Wire NPN NO. Detecting Distance: 4mm. Supply Voltage: 5-30VDC, Current Output: 300mA.
- LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.
- Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).
- When proximity switch is close to some target object, it will send out control signal. Widely used for machine tool industry, frequency counters and other automatic control system, or you can use it for DIY 3D Printer.
- You will get 4pcs inductive proximity switch + 4pcs SN Bracket
| Manufacturer | Haldzemo |
| Brand | Haldzemo |
| Item Weight | 6.4 Ounces |
| Package Dimensions | 6.81 x 5.24 x 1.22 inches |
| Date First Available | 2023, October 26 |
| Product Type | Inductive |
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Category |
Industrial Electrical , Sensors , Proximity Sensors , Inductive |
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Estimated shipping
Select a product to estimate shipping.Proximity switch definition:
An inductive proximity switch consists of high frequency oscillation, detection, amplification, triggering and output circuits. The oscillator generates an alternating magnetic field on the detecting surface. When there is a metal object close to its detecting surface, the eddy current generated in the metal absorbs the energy of the oscillator, which makes it weaken to stop oscillating. The oscillator oscillation and stop vibration of these two states is converted into an electrical signal through the detection, amplification and trigger output circuit.
Haldzemo SN04 Inductive Proximity Sensor
NPN: common positive voltage, output negative voltage. PNP: common negative voltage, output positive voltage. NO: normally open. NC: normally closed.
Difference between normally open (NO) and normally closed (NC):
Normally open (NO) is the usual state of the signal output line is disconnected state, no signal output, when sensed to the object is closed, the output signal.
Normally closed (NC) is the usual state of the signal output line for the closed state, continuous signal output, when the sense of the object is disconnected, close the signal.
LED working indicator:
signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.
Square proximity switch
Model: SN04
Detected object: Metal/Iron
SN04-N/SN04-P Working voltage: within DC 5-30V
SN04-N2/SN04-P2 Working voltage: within DC 6-30V
Detection distance: 4mm
Wire type: 3 wire (Brown, Black, Blue)
Output current: 300mA
Response time: 2mS
Application:
The function of proximity switches (also known as non-contact travel switches) is to act when approaching metal, and are widely used in machine tools, metallurgy, chemical industry, light textile and printing industries, in the automatic control system can be used as limit, counting, positioning control and automatic protection link, etc..
SN04 Proximity Switch
Shape: Square
Shell Material: ABS
Size: 18*18*36mm
Weight: 50g
Color: Blue
Wire length: 1.2m
SN Bracket
Material: Iron
Size: 32*18*8.5mm
Weight: 15g
Color: Silvery
With 2pcs M3 screws
Wiring Method
Brown connect to Positive
Blue connect to Negative
Black connect to Load (signal output)
NPN NO
Mode: SN04-N
Output Type: NPN NO
PNP NO
Mode: SN04-P
Output Type: PNP NO
NPN NC
Mode: SN04-N2
Output Type: NPN NC
PNP NC
Mode: SN04-P2
Output Type: PNP NC
Product details
Shipping & Delivery
At GofinchKart Australia, we aim to deliver your order quickly and safely.
Domestic Shipping (Australia):
Orders are typically delivered within 3–7 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
Once your order has been dispatched, you will receive a tracking number. Delivery times may vary during public holidays or due to unforeseen delays.