Eaton DILM820-XHI11-SI サイドマウント補助接点モジュール

注文番号: 208281, エイリアス: XTCEXSBR11

位置決め: Side-mounted 補助 contact module for high-power DILM/DILH series contactors (モラーシリーズ)

✅ モデルコードの説明

DILM820-X: Accessory for high-frame DILM power contactors

HI11: 1いいえ + 1ノースカロライナ州 (1 make, 1 break)

SI: Side Install (側面取り付け; differentiated from SA & V variants)

✅ Key Contact Characteristics (致命的)

Interlocked Mirror Contact, IECに準拠 60947-5-1 Annex L and IEC 60947-4-1 Annex F

The NC contact is a mirror contact, designed for safety circuits, interlocking, emergency stop feedback and PLC safety signal acquisition. It is NOT a late-break NC contact

接点構成: 1 通常開 + 1 通常閉

終了: M3.5 screw terminals, 締め付けトルク: 1.2 Nm

従来熱電流 Ith: 10 あ (で 60 ℃)

AC-15 control capacity:

230 V: 6 あ

400 V: 4 あ

500 V: 1.5 あ

定格絶縁電圧Ui: 690 V; ウンプ: 6 kV; 過電圧カテゴリ III, 汚染度 3

電気的絶縁: Coil-to-auxiliary contacts and auxiliary-to-main contacts meet AC 440V isolation level

✅ Compatible Base Contactors (Only for this high-power frame)

DILM250 ~ DILM1000, DILH600 ~ DILH2600, DILDC300 ~ DILDC600 DC contactors

マックス. 1 module on each side (左 & 右), 最大 2 modules per contactor

✅ Dimensions & 重さ

W15 mm × H77 mm × D77 mm, 正味重量: 37 g

✅ Cross-Series Comparison (セレクションガイド)

DILM820-XHI11-SI: Side mount, ネジ端子, interlocked mirror contact (スタンダードモデル, this part)

DILM820-XHI11V-SI: Side mount, vibration-resistant reinforced version

DILM820-XHI11-SA: Standard interlocked contact (non-mirror), not for safety EDM monitoring

✅ Certifications

CE, UL, CSA, CCC; compliant with railway standard EN 45545 and vibration standard IEC 61373. Suitable for cranes, エアコンプレッサー, ファン, high-power motor circuits, safety gate interlocks and inverter bypass feedback.

✅ Typical Applications

Safety interlock circuits, contactor status feedback to PLC, forward/reverse electrical interlocking, fault feedback, safety relay input signals.

This side-mounted IEC 60947-5-1 Annex L mirror contact module (1NO+1 mirror NC) is exclusively for DILM250~DILM1000 and DILH high-power contactors. It is mainly used in safety-related control circuits, high-power motor control and fault diagnosis feedback, and cannot be replaced by standard auxiliary contacts for safety validation.

1. Safety Circuits (最も一般的な, Mandatory for Safety Audits)
2. EDM External Device Monitoring for Safety Relays

The mirror NC contact is wired into the EDM channel of the safety relay to monitor welding/sticking of the contactor main contacts. If the NC fails to reset after coil de-energization, the safety relay triggers a lockout. It meets ISO 13849 PLd/PLe and SIL2/3, which is the standard solution for イートン ESR, Pilz and Schneider XPS safety circuits.

2. Safety Gate / Light Curtain Interlocking

The mirror NC verifies the true open state of the contactor after the safety gate is opened, preventing unexpected motor operation caused by welded main contacts.

3. Emergency Stop State Verification

After E-stop cuts off the contactor coil, the mirror contact confirms the contactor is physically open, eliminating hidden risks from welded main contacts despite valid E-stop signals.

1. High-Power Motor Control Circuits
2. Hardware Electrical Interlock for Forward/Reverse Contactors (Preferred for Large Fans, Pumps and Hoists)

The mirror NC of each contactor is wired in series into the coil circuit of the opposing contactor, forming hardwired interlock to prevent simultaneous closure and phase-to-phase short circuit. For DILM high-power contactors, safety auditors will not approve ordinary auxiliary contacts for this interlock.

Ⅲ. Performance Comparison Table

1. 制限事項 (Derived from Mechanical Design)
2. Only fits DILM250~DILM1000 / DILH high-power contactors; smaller frames do not match the mechanical stroke.
3. Designed exclusively for control signals: Ith=10 A, AC-15 230V=6A; cannot carry main power loads.
4. The mirror NC only detects welded closed main contacts. It cannot detect poor contact or increased contact resistance.

Full Model List for DILM820-XHI Series

のみ 3 mass-produced variants: all side-mounted 1NO+1NC positive-interlock contacts; differences are mirror (SI) / 標準 (の上) and vibration-resistant (V) バージョン.

1. モデルのコーディング規則

DILM820-XHI: Side auxiliary contact module for DILM/DILH high-power contactors (DILM250 ~ DILH2600)

11: 1いいえ + 1ノースカロライナ州 (1 make + 1 break)

S: Side mounted

SI: Mirror Contact (IEC 60947-4-1 Annex F, approved for EDM welding monitoring)

の上: Standard positive interlock contact (IEC 60947-5-1 Annex L only; NOT allowed for safety relay EDM)

V: Vibration-resistant reinforced construction (railway, heavy vibrating equipment)

2. Complete Product List

3. Key Selection Distinction

(1) SI vs SA (最も重要な)

SI: NC is a certified mirror contact. It stays open when main contacts are welded, satisfying ISO 13849 PLd / SIL2-3 and approved for safety relay EDM loops.

の上: Only mechanical positive interlock without welding test certification. Only for ordinary control; rejected by safety audits.

(2) V-SI Variant

Mechanically reinforced for higher shock & 耐振動性 (IEC 61373). Electrical specs are identical to standard SI. Used for hoisting, mining and railway rolling stock.

4. Universal Installation Restrictions

取り付け: Only side-fit on DILM250~DILM1000 and all DILH series contactors.

量: マックス. 1 module per side, total maximum 2 modules per contactor.

評価: Ith=10 A, AC-15 230V=6A; strictly for control circuits only, no power loads.

5. No Other Variants

No XHI22 (2NO+2NC) version available.

No top-mount version; only side-mount (S) models.

No spring-cage terminals; all models use M3.5 screw terminals.

6. ブランド間の同等品

Eaton DILM820-XHI11-SI ↔ Siemens 3RT1956-4G (mirror contact); Schneider LADN13C is only standard auxiliary contact and cannot replace the mirror type for safety EDM.