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PVA-KL26: KOPPEN & LETHEM Digital Signal Module / Relay Module
The PVA-KL26 is a 12/24 VDC digital signal module / relay module manufactured by KOPPEN & LETHEM of the Netherlands. It is widely used in industrial control and marine applications, integrating a plug-in LED status indicator and RC circuit (for arc suppression and voltage transient protection).
コア機能
| パラメータ | 仕様 |
| メーカー | KOPPEN & LETHEM (sometimes associated with Doedijns) |
| Operating Voltage | 12/24 VDC (wide‑voltage design) |
| コア機能 | Signal conversion, switching control, status indication |
| 主要コンポーネント | Plug‑in LED indicator, RC circuit (arc suppression) |
| Mounting Style | Plug‑in design for quick installation, removal and maintenance |
| 応用分野 | 産業オートメーション, ship control systems, hydraulic equipment control |
製品の利点
- Intuitive Status Monitoring: LED indicator displays real-time operating status, reducing the risk of misoperation
- 回路保護: Built-in RC circuit effectively suppresses arcing and voltage transients, extending service life
- 簡単な取り付け: Plug-in design saves maintenance time and cost
- 環境適応力: Suitable for harsh industrial and marine environments
代表的な用途
The PVA-KL26 is commonly used for:
Signal conversion and control in marine automation systems
Remote control circuits for hydraulic machinery
Status monitoring and alarm systems for industrial equipment
Relay contact protection and signal amplification
注意事項
- Ensure the supply voltage is within 12-24 VDC to avoid overvoltage damage
- Observe correct polarity during installation to prevent damage to the LED indicator and internal circuits
- The RC circuit must be matched to the load for optimal arc suppression
- For use in dry, dust-free environments only; additional protection is required in humid conditions
PVA-KL26 Detailed Technical Specification Manual
(KOPPEN & LETHEM Digital Signal / Relay Module)
The PVA-KL26 is a 12/24 VDC digital signal module / relay interface module specially designed by KOPPEN & LETHEM (Netherlands) for industrial and marine environments. It integrates status indication and arc suppression functions, ideal for signal conversion and control under harsh operating conditions.
- コアの電気パラメータ
| パラメータ | 価値 | 備考 |
| Operating Voltage | 12/24 VDC (wide‑voltage compatible) | Polarity protection, reverse‑connection resistant |
| Control Input Signal | 24 VDC logic level | Compatible with standard PLC digital outputs |
| Contact Rating | 2 A @ 24 VDC / 1 A @ 250 VAC | 抵抗負荷; derate for inductive loads |
| LED Indicator | Plug‑in red LED | Lights up when powered, clear status visibility |
| RC Arc Suppression Circuit | Built‑in standard RC network | Suppresses contact arcing and voltage transients, extends contact life |
| Insulation Resistance | ≥ 100 MΩ (at 500 VDC) | Between input‑output‑ground |
| Dielectric Strength | 1500 VAC for 1 分 | Between input‑output‑ground |
| 消費電力 | < 1 W | Low power, 連続運転に適した |
- 機械式 & 身体的特徴
| パラメータ | 価値 | 備考 |
| 取り付け | 標準 35 mm DIN rail mounting | Snap‑in design for easy installation/removal |
| Module Dimensions | W 22.5 mm × H 90 mm × D 60 mm | Standard DIN rail module size |
| 重さ | 約. 80 g | 軽量, saves cabinet space |
| Connector Type | Plug‑in terminal block | Accepts 2.5 mm² wire, tool‑free wiring |
| Ingress Protection | IP20 | For indoor control cabinet use |
| ハウジング材質 | Flame‑retardant ABS plastic | UL94 V‑0 rated, high fire resistance |
Ⅲ. Environmental & 動作条件
| パラメータ | 価値 | 備考 |
| 動作温度 | −25 °C ~ +70 ℃ | Wide temperature range for marine/industrial use |
| 保管温度 | −40 °C ~ +85 ℃ | Safe storage under extreme temperatures |
| 相対湿度 | 5% ～ 95% (non‑condensing) | Adaptable to high‑humidity marine environments |
| 振動 & Shock | IEC 60068‑2‑6 / IEC 60068‑2‑27 | Complies with marine and industrial anti‑vibration standards |
| EMC | で 55011 / EN 61000‑6‑2 | Immune to electromagnetic interference, suitable for industrial automation |
- Pin Configuration & Wiring Definition
(Standard 6-pin terminal block)
| Pin No. | Function Definition | Wiring Description |
| 1 | V+ (Positive Power) | Connect to 12/24 VDC positive |
| 2 | V− (Negative Power) | Connect to 12/24 VDC negative / GND |
| 3 | で (Signal Input) | Connect to control signal (24 VDC active high) |
| 4 | COM (Common) | Relay contact common terminal |
| 5 | いいえ (通常開) | Closed when relay is energized |
| 6 | ノースカロライナ州 (通常閉) | Closed when relay is de‑energized |
- Detailed Functional Features
- Arc Suppression Technology
Built-in RC snubber circuit (標準: 100 Ω / 0.1 μF) absorbs back EMF from inductive loads at contact break, effectively suppressing arcing and extending contact life by 3-5 回.
- Status Monitoring System
Red LED provides real-time module status indication
Simple fault diagnosis: LED off = power fault; LED on but no contact action = internal circuit fault
- 安全設計
Polarity protection prevents damage from reverse power connection
Overcurrent protection guards against output short circuits
Surge voltage suppression protects internal electronic components
- Application Limitations & 注意事項
Load Type Adaptation
誘導負荷 (モーター, 電磁弁): recommended derating to 50% of rated value
Capacitive loads (capacitors, ランプ): current-limiting resistor required to prevent inrush current
設置仕様
Avoid installation near heat sources (> 70 ℃)
Maintain at least 5 mm clearance around the module for heat dissipation
Ensure secure wire crimping during wiring to prevent poor contact
Maintenance Guidelines
Regularly check LED status and terminal tightness
Insulation test recommended every 6 months in harsh environments
Replace the entire module if faulty; internal repair is not recommended
Ⅶ. 代替モデル & 互換性
| 代替モデル | ブランド | Compatibility Description |
| PVA‑KL26‑EX | KOPPEN & LETHEM | Intrinsically safe version for hazardous areas |
| RM22UA02 | シュナイダーエレクトリック | Functionally compatible, slight dimensional differences |
| DILM25‑10 | シーメンス | Higher contact capacity, usable as alternative |
PVA-KL26 Standard Pin / Terminal Configuration
This module uses a 6-pin plug-in screw terminal block.
When facing the front of the module with terminals downward, terminal numbers are 1 に 6 from left to right.
| Terminal No. | Marking | 機能の説明 |
| 1 | IN+ | Positive digital control signal input (24 VDC) |
| 2 | IN− | Negative signal input / common ground |
| 3 | V+ | Positive operating power (12/24 VDC) |
| 4 | V− | Negative operating power / GND |
| 5 | いいえ | Normally open relay output contact |
| 6 | COM | Relay contact common terminal |
重要な注意事項
- This model has only NO (通常は開いています) 連絡先, no NC (通常は閉まっている)
- Input with reverse polarity protection; LED lights when IN+ is active
- Built-in RC snubber on output allows direct driving of inductive loads such as solenoids and coils
- Terminal suitable wire cross-section: 0.5-2.5 mm²
