아픈 WTB12-3P2431

SICK WTB12-3P2431 is a background suppression diffuse-reflection photoelectric sensor from SICK’s W12-3 series, 주문번호 포함 1041411.

1. 주요 사양

작동 원리: Diffuse-reflection with background suppression

감지거리: 20 mm ~ 350 mm (standard white card, 90% 반사율)

광원: Visible red light LED, 파장 640 nm

Light spot: Ø 6 mm @ 200 mm

공급 전압: 10 ~ 30 DC에서

산출: PNP complementary output (light-on/dark-on configurable)

맥스. load current: 100 엄마

응답 시간: ≤ 330 µs

스위칭 주파수: 1,500 헤르츠

조정: 5-turn potentiometer (sensitivity)

연결: M12 × 4-pin plug

치수: 15.6 × 48.5 × 42 mm

무게: 대략. 120 g

보호등급: IP66 / IP67 / IP69K

주변 온도: -40 ℃ ~ +60 ℃

2. 모델 의미

WTB: Diffuse-reflection photoelectric sensor (배경 억제)

12: W12 series

3: 3-와이어 시스템

피: PNP 출력

2431: Function/configuration code (배경 억제, M12 플러그, 빨간불)

3. 같은 시리즈의 유사한 모델 (W12-3)

WTB12-3P2431: 배경 억제, 350 mm, PNP (이 모델)

WTB12-3N2431: 배경 억제, 350 mm, NPN

WTF12-3P2431: Foresight suppression, 350 mm

WSE12-3P2431: Through-beam type (emitter + receiver), 20 중

WL12-3P2431: Retro-reflective type, 7 중

4. 일반적인 응용 분야

Small parts / transparent object detection

Level monitoring (재료 / liquid)

고정밀 위치 결정, false-trigger prevention

포장, 전자 제품, and logistics production lines

Core difference between SICK WTB12-3P2431 and WTB12-3P2430: only the output function differs. All other electrical, 기계적인, and optical parameters are identical.

1. 주요 매개변수 비교

2. Detailed Difference: Output Function

WTB12-3P2431 (4-핀, 보완적인 출력)

4-wire output: 2 independent PNP signals (Q1 normally open + Q2 normally closed)

핀 1 (BN): +다섯, 핀 2 (와트시): Q1, 핀 3 (이것): Q2, 핀 4 (BK): 0다섯

이점: One signal for control, one for monitoring/feedback, suitable for safety circuits and dual-signal systems

WTB12-3P2430 (4-핀, single output)

3-wire active: 오직 1 PNP normally open (큐); 핀 3 (이것) not connected / non-functional

핀 1 (BN): +다섯, 핀 2 (와트시): 큐, 핀 3 (이것): NC, 핀 4 (BK): 0다섯

포지셔닝: Legacy / simplified version, basic detection only, no complementary signal

3. 모델 코드 설명 (SICK W12 Series)

`WTB12-3P243X`

WTB: 확산 반사 + 배경 억제

12: W12 series

3: 3-와이어 시스템

피: PNP 출력

243엑스:

2: Red light

4: M12 4-pin

엑스: Output function

X=1 → Complementary output (31)

X=0 → Single output (30)

4. 선택 가이드

선택하다 31 (1041411):

Requires dual signal / redundancy / status feedback

New designs, standard projects, best compatibility

선택하다 30 (1041410):

Direct replacement for legacy equipment (원래의 30 모델)

Only requires single switching signal, cost-saving and simplified wiring

결론: WTB12-3P2431 is the upgraded/standard version of 30. The core difference is complementary output; all other specifications are fully interchangeable (only wiring differs).

Below is the complete parameter comparison table for three sensors from the SICK W12-3 series:

WTB12-3P2431 (PNP background suppression), WTB12-3N2431 (NPN background suppression), WTF12-3P2431 (PNP foreground suppression).

1. Key Parameter Comparison Table

2. Key Difference Analysis

2.1 WTB12-3P2431 vs WTB12-3N2431

Only difference: Output polarity

3P2431: PNP 출력 (active high, load connected to negative)

3N2431: NPN 출력 (active low, load connected to positive)

동일한: 감지거리, 배경 억제, optical / 기계적인 / 전기적 매개변수

2.2 WTB12-3P2431 vs WTF12-3P2431

Core differences: Suppression logic + 거리 + light spot

배경 억제 (WTB): Ignores distant background, detects only nearby objects → ideal for anti-background interference

Foreground Suppression (WTF): Ignores nearby objects, detects only distant targets → ideal for thin/small/transparent objects, anti-close false triggering

거리: WTB 350 mm / WTF 175 mm

Light spot: WTB Ø6 mm / WTF Ø2 mm (finer)

3. 선택 가이드

Choose WTB12-3P2431:

Standard PNP systems, requires background suppression, sensing distance ≤ 350 mm

Choose WTB12-3N2431:

NPN systems, other requirements same as above (direct replacement for 3P2431)

Choose WTF12-3P2431:

Detection of thin/small/transparent parts (예를 들어, films, 라벨, thin sheets)

Needs to ignore close-range interference, detect only distant targets

Sensing distance ≤ 175 mm, requires fine light spot

As of April 2026, reference prices for genuine original SICK W12-3 series (WTB/WTF) sensors are as follows:

1. Target Models (Latest Quotations)

2. Key Price Factors
3. 출력 유형

NPN (3Nxxxx) is ¥30-50/pc more expensive than equivalent PNP (3Pxxxx)

2. 감지 원리

WTF (foreground suppression) > WTB (배경 억제)

Price difference: ¥200-250/pc (more precise optical system in WTF)

3. Order quantity

1 pc: Retail price (더 높은)

≥10 pcs: Agent bulk price (8%-12% 낮추다)

4. Lead time and channel

재고 있음: As above

Indent order (4-6 주): Further 3%-5% 할인

Counterfeit / refurbished: ¥800-1,000 (not recommended, no warranty, unreliable)

3. 유럽 ​​사람 & US Official Prices (참조, tax & freight excluded)

WTB12-3P2431: €194/pc (대략. ¥1,500)

WTF12-3P2431: €278/pc (대략. ¥2,150)

Domestic agent prices are 10%-15% lower than European official prices (better for bulk orders)

4. 선택 & 구매 조언

최고의 가치: WTB12-3P2431 (만능인, 경제적, compatible with most PLCs)

NPN required: Choose WTB12-3N2431 (slightly more expensive but direct fit)

Thin/transparent/small objects: WTF12-3P2431 (more expensive but accurate, no false triggers)

5. 확실성 & 보증

Genuine product: Made in Germany, SICK yellow packaging, laser-engraved model, serial number verifiable on official website