LJA12 Long Cylindrical Inductive Proximity Switch
LJA12 proximity switch is a displacement sensor with switching output. The output includes NPN, PNP, normally open, normally closed, relay, etc. It can detect transparent and opaque objects such as metal (such as iron, steel, copper), plastic, glass, wood, water, paper, magnets, etc. It can be controlled with PLC and servo Inverters, frequency converters, counters, and controllers are connected to realize automatic signal input.
Widely used in machinery, textile, light industry, papermaking, printing, packaging and other industries.At the same time, it is divided into two series: C series high-end proximity switch and ordinary type according to the use requirements.Inductive proximity switches detect metal objects (such as iron, steel, copper, etc.);If you have any questions, please feel free to contact us:E-mail: [email protected]
- Περιγραφή
| Output form | Embedded | Non-embedded | ||
| D C | NPN | NO | LJA12-2N1 | LJA12M-2N1 |
| NC | LJA12-2N2 | LJA12M-2N2 | ||
| PNP | NO | LJA12-2P1 | LJA12M-2P1 | |
| NC | LJA12-2P2 | LJA12M-2P2 | ||
| 2-wire | NO | LJA12-2D1 | LJA12M-2D1 | |
| NC | LJA12-2D2 | LJA12M-2D2 | ||
| A C | 2-wire | NO | LJA12-2A1 | LJA12M-2A1 |
| NC | LJA12-2A2 | LJA12M-2A2 | ||
| Detection distance ※1 | 2mm | 4mm | ||
| Setting distance | 0 ~ 1.7mm | 0 ~ 3.4mm | ||
| Τυπικό αντικείμενο ανίχνευσης | 12*12*1mm Iron | |||
| Response frequency ※2 | N / P :1200Hz、DC:200Hz、AC:25Hz | |||
| Return Difference | Less than 15 % of detection distance | |||
| Ανιχνεύσιμα αντικείμενα | Magnetic metals (shorter detection distances for non-magnetic metals) | |||
| Τάση τροφοδοσίας | DC :Rated voltage DC12~24V (use range voltage DC10~30V);AC:M8:AC90~250V,M12-M30:AC24~250V | |||
| Ρεύμα λειτουργίας | Load current ≤200mA | |||
| Υπολειπόμενη τάση | NPN :≤ 1.5V;PNP :≤ 2.5V; DC 2-wire:≤ 4V; AC 2-wire:≤ 7V | |||
| Ρεύμα διαρροής | When 24VDC, max 0.1mA | |||
| Κύκλωμα προστασίας | DC: polarity, overcurrent protection; AC: surge absorption protection | |||
| Ενδεικτική λυχνία | Dual light display: power indicator green, action indicator red | |||
| Εύρος θερμοκρασίας | Operating: -25 to +70°C (no icing, condensation); Storage: -40 to +85°C (no icing, condensation) | |||
| Εύρος υγρασίας | Operation, storage: 35~95% (no condensation) | |||
| Temperature effect (drift) | -25~+70℃ temperature range, the detection distance is within ±10% of the detection distance at +23℃. | |||
| Protective structure | IP67 | |||
| Housing Material | Chrome Plated Brass | |||
| Υλικό ανίχνευσης επιφάνειας | PBT | |||
| Overall dimensions | Embedded | Non-embedded | ![]() |
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| Item | Προσδιορισμός | a | b | C | d | e | f | g | |
| Embedded | LJA8 | 41.7±0.5 | 35±0.5 | 3.5 | M8×1 | 12 | AF12 | ||
| Non-embedded | LJA8M | 45.2±0.5 | 4 | ||||||
| Embedded | LJA12 | 51.6±0.5 | 40±0.5 | 40±0.5 | 4 | M12×1 | 17 | AF17 | |
| Non-embedded | LJA12M | 54.0±0.5 | 35±0.5 | 8 | |||||
| Embedded | LJA18 | 51.8±0.5 | 52±0.5 | 40±0.5 | 4 | M18×1 | 24 | AF24 | |
| Non-embedded | LJA18M | 58.0±0.5 | 35±0.5 | 12 | |||||
| Embedded | LJA30 | 52.0±0.5 | 52±0.5 | 40±0.5 | 4.7 | M30×1.5 | 36.2 | AF35.8 | |
| Non-embedded | LJA30M | 61.0±0.5 | 35±0.5 | 15 | |||||

Χαρακτηριστικά:
1.Stable performance, internal electronic components SMT chip technology, stable and reliable performance.
2.Powerful function, polarity protection to prevent reverse wiring.
3.Safe and worry-free, using ferrite core, the magnetism will not decay after long-term use.
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