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Special Symbol Metal Button

J28 28mm Power Symbol Illuminated Metal Push Button Switch (Momentary)

Model J28-271-P, J28-272-P

J28-271-P, J28-272-P by JINHONG for industrial control panels, OEM equipment and automation systems. Category: Special Symbol 28mm Metal Switch.

  • Mounting diameter28 mm
  • Insulation voltage (Ui)250 V
  • Thermal current (Ith)5 A
  • Protection degreeIP65; IP67 available on request
  • Operating temperature-25°C to +60°C
J28 28mm Power Symbol Illuminated Metal Push Button Switch (Momentary)

Product Information

The J28-271-P is the 28mm power symbol version of the 28 mm Special Symbol anti-vandal metal push button switch series — a stainless-steel (SUS304/316) unit with a 28 mm panel cut-out; Thermal current (Ith): 5 A; Insulation voltage (Ui): 250 V; Protection degree: IP65; IP67 available on request — for machinery, industrial control panels and OEM equipment.

J28-271-P 28mm Power Symbol Illuminated Metal Push Button Switch

Key features

  • Mounting diameter: 28 mm
  • Protection degree: IP65; IP67 available on request
  • Initial contact resistance: ≤50 mΩ
  • Mechanical life: 300,000 operations
  • Lamp voltage options: DC: 6;12;24; AC: 110V; 220V; Lamp current: 3–36V: 7-10mA; 110–220V: 2-3mA; Lamp colour options: Red;Green;Blue;White;Yellow
  • Customisable symbol, colour and voltage
  • Complies with IEC 60947-5-1 / GB 14048.5
  • Models in this version — J28-271-P, J28-272-P

At a glance

Mounting diameter28 mm
Insulation voltage (Ui)250 V
Thermal current (Ith)5 A
Protection degreeIP65; IP67 available on request
Operating temperature-25°C to +60°C

Characteristics

Electrical ratings
Series contact options1NO+1NC; 2NO+2NC
Insulation voltage (Ui)250 V
Thermal current (Ith)5 A
Min.Applicable Load5VDC,10mA
Vibration Resistance10 to 55Hz,amplitude 1.5mm p-p
Dielectric strength2,000V/60s
Initial contact resistance≤50 mΩ
Insulation resistance (500V DC)100 MΩ
Mechanical & endurance
Electrical life100,000 operations
Mechanical life300,000 operations
Protection & environment
Operating temperature-25°C to +60°C
Soldering Temperature20W/5 seconds or 260℃/3 seconds
Operating humidity45 to 85% RH
Other data
Impact resistance>IK10
Connection FormPin Soldering
Tightening Torque5-14N.m
Motion Travel≤≤0.5mm
Operating Force≤5N
Lamp rating
TypeLED
Lamp voltage optionsDC: 6;12;24; AC: 110V; 220V
Lamp current3–36V: 7-10mA; 110–220V: 2-3mA
Lamp colour optionsRed;Green;Blue;White;Yellow
Lamp life40,000 hours

Contact Rating

AC contact capacityResistive: 110V/1A; 250V/0.5A; Inductive: 110V/0.7A; 250V/0.5A
DC contact capacityResistive: 24V/1A ; 110V 0.2A; Inductive: 24V/0.7A; 110V/0.1A
Mounting diameter28 mm
Protection degreeIP65; IP67 available on request
Contact materialGold-plated silver alloy
Storage temperature-40°C to +70°C
Approvals / standardsCE
Contact block familyF16
Contact block formZa series

Specifications

Selection chart — 28mm power symbol, 28 mm panel cut-out. Symbol, colour and lamp voltage are specified when ordering.

Shape of HeadIlluminated TypeOperationContact TypeModel
Power SymbolIlluminatedMomentary1NO+1NCJ28-271-P
Power SymbolIlluminatedMomentary2NO+2NCJ28-272-P

Equivalent Circuit — using an AC/DC LED lamp, the terminals have no difference of anode and cathode.

□ = symbol / marking code  ·  ● = lamp colour code. Factory direct from Wenzhou Jinhong, OEM/ODM welcome.

Dimensions

Dimensions (mm) — 28mm power symbol, 28 mm mounting hole.

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Special Symbol Metal Button at one glance