OMRON S8VK-T12024 DIN Rail Power Supply

S8VK: オムロン S8VK series switching 電源

T: Model for three-phase AC400V input

120: Rated power 120W

24: DC24V output

コア仕様

端子の定義

1. L1, L2, L3: Three-phase AC input
2. PE: 保護アース
3. +V, -V: DC24V output
4. V.ADJ: Output voltage trim potentiometer
5. DC ON: Green indicator for normal output

典型的なアプリケーションシナリオ

Three-phase industrial control cabinets, 工作機械, 包装装置, HVAC automatic control, 380V powered automated production lines, supplying DC24V for PLCs, センサー, relays and valve islands.

シリーズ内比較

S8VK-T12024: 120W / 5あ / Width 40mm

S8VK-T24024: 240W /10A / Width 60mm

S8VK-T48024: 480W /20A / Width 95mm

S8VK-T96024: 960W /40A

代替選択のリファレンス

1. OMRON single-phase version: S8VK-C12024 (also 120W/24V, single-phase 220V input, do not confuse)
2. 国内代替品: Meanwell DRT-120-24, Delta DRP0120, Phoenix Contact three-phase 24V/5A rail power supply

トラブルシューティングのガイドライン

1. DC indicator off: Check three-phase input voltage, PE earthing, input circuit breaker; failure to start if two phases are missing
2. Voltage drop under load: Load exceeds rated 5A; 高温ディレーティング; low input voltage
3. Intermittent undervoltage alarm: Main circuit voltage fluctuation, loose terminal wiring
4. Overvoltage latch-off: Triggered by output overvoltage, restore by power cycling; check for load short circuit / reverse voltage

OMRON S8VK-T12024 Detailed Technical Specifications

Three-phase 380V input DIN rail switching power supply, rated 120W DC24V/5A

1. Input Specifications

2. Output Specifications

3. 絶縁 & 耐電圧
4. Input ↔ Output: AC3000V, 1分, cut-off current 20mA
5. Input ↔ PE: AC2500V, 1分, cut-off current 20mA
6. Output ↔ PE: AC1000V, 1分, cut-off current 30mA
7. 絶縁抵抗: ≧100MΩ (DC500V, between input/output/PE)
8. 環境条件

5. 機械仕様

取り付け: DIN35mm rail mounting

寸法: H125 × W40 × D112.2 mm

端子: Screw-type terminals

重さ: 約. 600g

オプション: Conformal coated PCB version (anti-corrosion & 防塵)

6. 信頼性 & 認証

MTBF: ≥135,000 hours

インジケータ: Green DC ON lamp, illuminates when output ≥80~90% rated voltage

安全認証: UL, CSA, CE and other global industrial standards

7. 端子の定義
8. L1, L2, L3: Three-phase AC input
9. PE: 保護アース (must be earthed reliably)
10. +V, -V: DC24V output
11. V.ADJ: Output voltage trim potentiometer
12. Summary of Protection Functions

✅ Overload protection (自動回復)

✅ Short-circuit protection (自動回復)

✅ Output overvoltage protection (latch-off, reset by power cycle)

✅ Built-in undervoltage monitoring

✅ Input surge suppression

9. 重要なメモ
10. Derating is mandatory when ambient temperature＞50℃
11. Load capacity will be limited under two-phase input
12. External diodes are mandatory for series connection; direct series connection is prohibited
13. PE terminal must be reliably earthed to comply with safety standards

OMRON S8VK-T Three-phase DIN Rail Power Supply Full Series List

S8VK-T: Three-phase AC380~480V input, DC24V output, DIN35レール取付, fanless natural cooling; サフィックス -400 = conformal coated PCB (for dust, moisture and corrosive environments)

標準モデル

コンフォーマルコーティング (Anti-corrosion) モデル

付属品一覧

Common Specifications for Entire S8VK-T Series

1. 入力: Three-phase AC380～480V; operating range AC320～576V; two-phase input supported; DC450~810V DC input
2. 出力: DC24V, adjustable range 24V±10% (V.ADJ potentiometer)
3. 保護: 過負荷 / 短絡 (自動回復), output overvoltage latch-off (reset by power cycle), built-in undervoltage monitoring
4. 環境: Operating temperature -40℃ ~ +70℃, derating required above 50℃; fanless natural cooling; IP20 cabinet use
5. 耐電圧: Input↔Output AC3000V 1min; Input↔PE AC2500V 1min; Output↔PE AC1000V 1min
6. 取り付け: DIN35 rail, ネジ端子; multiple units parallelable for capacity expansion; 最大. 2 units in series (external diode required)

簡単な選択のヒント

All models are single DC24V output. S8VK-T series has no other voltage options (12V/48V not available in T series)

Model without -400: Standard PCB for normal control cabinets; with `-400`: Coated board for dusty, humid and corrosive gas environments

S8VK-T is three-phase power supply, do not confuse with single-phase S8VK-C / S8VK-G

Redundant power supply requires separate S8VK-R redundancy module

OMRON S8VK-T Three-phase DIN Rail Power Supply Cross-Brand Model Comparison Table

Matching prerequisites: Three-phase AC380~480V input, DC24V output, DIN35 rail mount, fanless natural cooling. Grouped into【Premium International Brands】【Taiwan Brands】【Domestic Industrial Brands】; replacement rating marked. ⚠️Differences exist in dimension, terminal layout, BOOST capability and PCB coating. Drawings must be verified for direct replacement.

Conformal Coated Version (-400 Anti-corrosion) 相互参照

S8VK-Txxx24-400 (PCB conformal coating for dusty/humid/corrosive environments)

1. フエニックス・コンタクト: QUINT4 series Coated version (coating option via suffix)
2. Meanwell TDR: Custom conformal coating available (standard TDR uncoated, custom order required)
3. シーメンス: SITOP PSU coated version
4. 国内: RDW series with three-proof coating

Redundancy Module Cross Reference (S8VK-R10 / S8VK-R20)

Key Difference Notes (選択フォーカス)

1. BOOST Peak Capacity

S8VK-T fixed 120% Power Boost for all models; Phoenix QUINT4 has stronger dynamic BOOST for short-time peak loads; Meanwell TDR uses conventional constant current limiting.

2. 入力特性

OMRON S8VK-T supports two-phase input. Some competitors’ three-phase power supplies do not support two-phase single-side power supply, verify carefully for retrofit projects.

3. 寸法 & インストール

OMRON S8VK-T is compact narrow-width design; Phoenix TRIO and Siemens SITOP models of same power are generally wider. DIN rail mounting space is the most common bottleneck for direct replacement.

4. Protection Logic Difference

S8VK-T overvoltage protection is output latch-off, reset by power cycle. Some competitors adopt hiccup auto-recovery, which may affect control system logic.

5. 温度範囲

OMRON S8VK-T features -40℃ cold start advantage; some Taiwan and domestic brands have lower limit of -30℃, use caution for cold-region equipment.

Selection Recommendation Strategy

輸出設備, 高い信頼性, cold environment: Prefer Phoenix QUINT4 / Siemens SITOP

コスト優先, ordinary domestic automation equipment: Meanwell TDR series

Budget control for domestic projects: Domestic RDW three-phase DIN rail power supply