Schneider LC1E630U7 AC Contactor

The domestic full model designation is commonly LC1E630U7N. Discontinued in April 2021. It is a 3-pole high-power AC contactor.

✅ Model Code Definition

LC1E: EasyPact TVS AC contactor series

630: AC-3 rated operational current of 630 あ

U: コイル電圧 240 Vと

7: 50/60 Hz universal AC coil

N: Domestic version with CCC certification (Overseas model LC1E630U7 does not carry suffix N)

This unit has no built-in auxiliary contacts. Auxiliary contacts require add-on accessories.

📋 Core Electrical Specifications

アイテム	パラメータ
極数	3P, 3メイン接点なし
Utilisation category	AC-3 (モーター負荷), AC-1 (抵抗負荷)
AC-3 Ie	630 あ (@ ≤440 V, 55 ℃)
AC-1 Ith	1000 あ (@ 40 ℃)
定格絶縁電圧Ui	690 V
定格インパルス耐電圧 Uimp	8 kV
Coil rated voltage Uc	240 Vと, 50/60 Hz
Coil operating range	選び出す: 0.85~1.1 × Uc; Drop-out: 0.25~0.5 × Uc
Inrush power consumption	1650 バージニア州; Hold power consumption: 22 バージニア州
Compatible motor power	220 V: 185 kW 380/400 V: 335 kW 440 V: 400 kW 690 V: 450 kW
Rated short-time withstand current Icw	5050 あ / 10 s
作る / 遮断容量	作る: 6300 あ; ブレーキング: 5040 A @440 V

🛠 Mechanical & Endurance Characteristics

機械的耐久性: 4 百万サイクル

AC-3 electrical endurance: 600,000 サイクル; AC-1: 200,000 サイクル

Maximum operating rate: 1200 サイクル/時間

稼働時間: Closing 40~80 ms; Opening 100~200 ms

取り付け: Plate mount (high-current frame does not support standard DIN rail)

締付トルク: 主回路 58 N・m; 制御回路 1.2 N・m

Overall dimension: W309 × H304 × D255 mm; 正味重量: 18.6 kg

保護クラス: IP00

Ambient operating temperature: -5 ～ +55 ℃; No derating up to altitude 3000 メートル

📌 Typical Applications

ハイパワーファン, ウォーターポンプ, エアコンプレッサー, 破砕機, large motor starter cabinets, low-voltage switchgear; AC-3 squirrel-cage motor start-stop control, switching of heavy resistive loads.

⚠️ Discontinuation & 交換オプション

LC1E630U7N discontinued in April 2021, no new original production. ストック / second-hand units available on market.

シュナイダー OEM replacement: LC1G630KUEC (TeSys ギガシリーズ, 630 あ, 240 VAC compatible coil)
国内代替品: CJX2-F630, NC2-630, 等. (Verify coil voltage, temperature rise and short-time withstand current)

🧰 Optional Accessories

Auxiliary contact block: LA1KN (add-on 1NO+1NC)

コイルサージキラー, 機械的インターロック, terminal shroud, サーマル過負荷リレー (large frame LRD series)

📎 Inspection Checklist for Second-hand Acceptance

Measure coil resistance and compare with reference value for same model; power on to test pull-in / drop-out, no sticking or abnormal noise
Inspect main contact surface for ablation or welding; check consistency of contact resistance across three phases
Dielectric strength test: 2.5 kV / 1 min between phases and main circuit to earth
Verify terminal tightening torque; inspect busbar contact surface for oxidation and overheating discoloration
Test operating voltage: Reliable pull-in at 0.85Uc, reliable drop-out below 0.5Uc

LC1G630KUEC VS LC1E630U7 Parameter Comparison Table

LC1E630U7: EasyPact TVS, 製造中止; LC1G630KUEC: テシスギガ, OEM replacement. KU = 100~250 V AC/DC wide-range coil (compatible with original 240 VAC).

パラメータ	LC1E630U7	LC1G630KUEC	備考
製品シリーズ	EasyPact TVS (Easy TeSys)	テシスギガ	Schneider new generation high power contactor
Model definition	3P, AC-3 630 あ, コイル 240 Vと, 50/60 Hz	3P, AC-3 630 あ, 100~250 V AC/DC wide coil	Giga AC/DC universal coil, direct replacement for U7 (240VAC) without control circuit modification
商品の状態	Discontinued Apr 2021, ストック / second-hand	生産中, genuine new
極 / 主な連絡先	3P, 3いいえ	3P, 3いいえ
AC-3 rated Ie @≤440V	630 あ (55 ℃)	630 あ	Identical rating for motor loads
AC-1 conventional thermal current Ith @40 °C	1000 あ	1050 あ	Giga higher resistive load capacity
定格絶縁電圧Ui	690 V	1000 V	Giga upgraded insulation
定格インパルス耐電圧 Uimp	8 kV	8 kV	同一
Rated short-time withstand current Icw	5050 あ /10 s	5050 あ /10 s; 4400 あ /30 s	Same 10s withstand; Giga superior long-duration withstand
Making capacity @440V	6300 あ	7220 あ	Giga higher short-circuit making capability
Breaking capacity @440V	5040 あ	5550 あ
Built-in auxiliary contacts	なし, LA1KN add-on required	1NO+1NC built-in	No need to purchase auxiliary contact block for retrofit
コイルの種類	交流のみ, 240 V, 50/60 Hz	Wide-range AC/DC 100~250 V	Compatible with AC and DC control supply, better engineering flexibility
Coil operating range	プルイン:0.85~1.1Uc Drop-out:0.25~0.5Uc	プルイン:0.8~1.1Ucmin~Ucmax Drop-out: ≤0.45Uc	Wider voltage tolerance for grid fluctuation
コイル消費電力	突入 1650 バージニア州; Hold 22 バージニア州	突入 800 バージニア州; Hold 15 バージニア州	Much lower coil power, less cabinet heat
機械的耐久性	4 百万サイクル	5 百万サイクル	25% 改善
AC-3 electrical endurance	600,000 サイクル	1 百万サイクル	Significant improvement under motor duty
Maximum operating rate	1200 サイクル/時間	AC-3: 600 サイクル/時間	LC1E better for frequent cycling; LC1G sufficient for standard motor applications
稼働時間	Close 40~80 ms; Open 100~200 ms	Close 40~70 ms; Open 15~50 ms	Giga faster opening
周囲温度	-5 ～ +55 ℃	-25 ～ +60 ℃	Giga supports low-temperature startup
保護クラス	IP00	IP2X with shroud	Finger-safe protection
寸法(幅×高さ×奥行き)	309 × 304 × 255 mm	211 × 284 × 266 mm	~32% narrower, キャビネットのスペースを節約します
正味重量	18.6 kg	14.2 kg	4.4 kg lighter for easier handling
Main circuit tightening torque	58 N・m	58 N・m	Busbar torque unchanged, busbars can be reused
Control circuit torque	1.2 N・m	Push-in spring terminal	Tool-free control circuit connection
取り付け	Plate mount	Plate mount	Mounting hole pattern incompatible, base plate re-drilling required
極あたりの電力損失 (AC-3)	48 W	26 W	Lower contact loss, less temperature rise
Motor power AC-3 @400V	335 kW	335 kW	Identical motor rating
Extra features	Basic contactor	Optional contact wear diagnosis, 機械的インターロック, ステータスフィードバック	Predictive maintenance available for critical loads

✅ Replacement Summary

Main circuit rating fully equivalent: に適しています 335 kW, 400 V motor. Keep busbar torque at 58 N・m; Mounting hole layout differs, base plate re-drilling required.
Control circuit advantage: LC1G630KUEC wide-range 100~250 V AC/DC coil works directly with original 240 VAC control supply; lower coil power and built-in 1NO+1NC auxiliary contacts, no auxiliary accessory purchase.
制限: Max operating rate reduced to 600 サイクル/時間. Applications with frequent inching or high cycle count need evaluation.
Temperature rise & 信頼性: Giga higher insulation voltage, lower contact loss and wider ambient temperature range, ideal for critical continuous-duty loads.

⚠️ Engineering Replacement Risk Notes

オリジナル 240 V AC control supply can connect directly to LC1G630KUEC coil.

Do not replace directly for heavy inching / frequent reversing >600 サイクル/時間; performance review mandatory.

Much narrower frame width; existing busbars and protective baffles need rework.

LC1G630KUEC (テシスギガ) 業界 & Load Application Guide

LC1G630KUEC: AC-3 630 あ, rated for 335 kW three-phase squirrel cage motor at 400 V. Built-in contact wear diagnosis, wide-range AC/DC coil and IP2X shroud. Designed for high-power motor start-stop, star-delta starters and heavy resistive load switching. Max operating rate 600 サイクル/時間, not recommended for high-frequency inching.

🏭 1. 水 & Wastewater (Waterworks, Sewage Plants, Pumping Stations)

Typical loads: Large raw water pumps, 下水リフトポンプ, circulating pumps, sludge pumps, エアレーションブロワー, main drive motors for scrapers.

特徴: 24/7 continuous operation requiring high reliability. LC1G supports -25 °C low temperature operation and contact wear diagnosis for predictive maintenance. Widely used in MCC pump cabinets and the most common retrofit candidate replacing LC1E630U7.

🌬️ 2. Large HVAC, データセンター & Commercial Complexes

Typical loads: Chiller compressors, large cooling tower fans, primary / secondary chilled water pumps, building exhaust fans.

特徴: Building MCC switchgear, frequent start-stop and elevated cabinet ambient temperature. Giga Ui=1000 V high insulation and low temperature rise; wide coil accommodates building supply voltage fluctuation.

⚙️ 3. 冶金, マイニング & 建築資材

Typical loads: クラッシャー, ボールミル, heavy belt conveyors, kiln blowers, hoist motors (derating required for AC-4 duty).

特徴: Heavy shock loads and dusty harsh environment; strong short-time withstand and short-circuit capacity. AC-4 hoist duty limited to max 150 サイクル/時間, derating mandatory during selection.

🛢️ 4. 石油化学 & エネルギー (油 & ガス, Solar, 風力)

Typical loads: Process pumps, コンプレッサー, thermal oil furnace blowers, wind turbine yaw / pitch large motors, high-power resistive load switching for PV systems.

特徴: Mounted outside explosion-proof enclosures, prone to supply voltage fluctuation. Wide-range 100~250 V AC/DC coil with high control supply compatibility; Marine certification available for auxiliary motor circuits on offshore platforms.

📦 5. 紙, パルプ, 食べ物 & 医薬品

Typical loads: Paper machine main fans, 真空ポンプ, large agitator motors, drying resistive heating loads (AC-1).

特徴: Continuous production with zero unscheduled downtime tolerance. Contact wear diagnosis enables advance replacement planning.

🏗️ 6. インフラストラクチャー & Railway Auxiliary Systems

Typical loads: Tunnel exhaust fans, station large water pumps, チラー, port crane auxiliary drives, terminal conveying equipment.

特徴: Preferred choice for project-type MCC panel builders; compatible with star-delta starter schemes with LA9G mechanical interlock accessory.

🧱 7. OEM Panel Builders & System Integrators

Panel builders: Low voltage Motor Control Centre (MCC), large motor starter cabinets, star-delta starter panels, soft starter bypass contactors (Bypass duty breaking capacity assessment required).

✅ Load Category Compatibility Summary

AC-3 (Primary use): Normal start-stop squirrel cage motors (パンプス, ファン) ✅ Preferred

AC-1: 抵抗加熱, resistive load switching, Ith=1050 A ✅

AC-4: Motor plugging / reverse braking, inching (hoists etc.), derating required and strict operating frequency limits ⚠️

AC-6a: Capacitor bank switching, capacitor dedicated protection required; direct use not recommended

⚠️ Key Selection Limitations

Max AC-3 operating rate: 600 サイクル/時間. Applications with higher frequency (inching, frequent reversing) are not recommended; LC1E630U7 is preferred.
使用周囲温度: -25 ℃～ +60 ℃, wider temperature range than legacy LC1E630U7.
Mounting hole pattern incompatible with LC1E; cabinet base plate re-drilling required for retrofit.
Marine type approval available for vessel applications.