シュナイダー GV2P21 モーターサーキットブレーカー

GV2P21

GV2: TeSys GV2 series モーターサーキットブレーカー

P: Rotary handle version (high-performance variant, distinct from push-button GV2ME; independent UL508 Type F certification, より高い遮断容量)

21: Current rating code → 17～23 A

Distinction Tip: GV2ME21 also covers 17–23 A, but adopts push-button operation; GV2P21 features a green rotary handle. Direct mechanical interchange is not allowed.

2. コアの電気パラメータ

3. 機械式 & 環境パラメータ

全体の寸法: W45 mm × H89 mm × D97 mm

取り付け: 標準 35 mm DINレール; alternatively fixed via M4 screws on panel

保護等級: IP20 (finger-safe terminals)

動作温度: -25 ℃ ～ +60 ℃; 保管温度: -40 ℃～+80 ℃

機械的耐久性: ≥100,000 回の操作; Electrical endurance AC-3 ≥100,000 operations

特徴: Built-in phase loss protection; integrated TEST button; padlockable in OFF position; clear tripping status indication

4. 端子の定義

Line side (電源入力): 1L1, 3L2, 5L3

Load side (motor output): 2T1, 4T2, 6T3

5. オプションのアクセサリ (Ordered Separately)
6. 補助接点ブロック: GV2AN11 (1NO+1NC), GV2AN20 / GV2AN02
7. Fault signal contact: GV2AD10 (trip-specific contact, distinguishes overload and short-circuit tripping)
8. Undervoltage release GV2AU, Shunt trip release GV2AS
9. Busbar connectors, terminal shrouds, external extended rotary handle
10. 選択 & 代替ソリューション

✅ Direct same-series replacement

GV2P21 (回転ハンドル, 17～23A); Do not mistakenly adopt GV2ME21 (push-button variant with different mechanism)

⚠️ Cross-series upgrade alternative

TeSys GV3P25 (overlapping current range, larger overall size; cabinet installation space must be verified)

7. Selection Pitfall Guidelines
8. The adjustment dial must be set to the motor rated full-load current (FLC); avoid long-term operation near the upper limit;
9. クラス 10 トリップ特性: standard motor startup protection; use cautiously for heavy-duty frequent startup conditions;
10. GV2P integrates overload and short-circuit protection. Fuses at upstream can be omitted for single small motors. Upstream short-circuit protection coordination is required for high-power systems;
11. Vertical installation is mandatory; reserve heat dissipation space around devices. Avoid overheating and false tripping caused by dense side-by-side mounting;
12. Built-in phase loss protection, recommended for 3-phase motors; direct application for single-phase motors is not advised.
13. 典型的なアプリケーションシナリオ

3-phase asynchronous motors (rated current 17～23A) ウォーターポンプなどの, ファン, コンベア, small air compressors and machine tool motors; control cabinets for automated production lines, 空調設備および包装機械.

Full Comparison: GV2ME21 VS GV2P21

Common features: 17～23 A adjustment range, 3P thermal-magnetic trip, クラス 10, 欠相保護, identical terminal layout, DINレール取付, interchangeable auxiliary contacts (GV2AN11/GV2AD10); 過負荷 & short-circuit protection thresholds are exactly the same.

1. コア比較表

2. Detailed Interpretation

2.1 動作モード & Safety Logic (Most Intuitive Difference)

GV2ME21: Push-button Start/Stop

Press black START to close; press red STOP to open.

After motor overload/short-circuit trip, red button pops out. Circuit can be reset directly by pressing the red STOP button.

✅ Suitable for: Local operation inside control cabinets, general fans & ウォーターポンプ, standard domestic automation equipment.

GV2P21: Rotary Handle Operation

Rotate clockwise → ON (閉まっている); Rotate counterclockwise → OFF (開ける).

Upon fault tripping, handle locks at intermediate TRIP position; Mandatory rule: rotate back to OFF before closing again, preventing forced power-on before fault elimination.

✅ Suitable for: Equipment maintenance safety management, ヨーロッパ人 & overseas exported machines, applications requiring Lockout/Tagout (心臓), cabinet door external operation.

2.2 短絡遮断容量 (Key Engineering Selection Factor)

GV2ME21: Icu=10 kA @400V

GV2P21: Icu=50 kA @400V

If prospective short-circuit current of upstream power supply exceeds 10 の, GV2ME21 is strictly prohibited; GV2P21 must be selected, otherwise the circuit breaker risks rupture under short-circuit conditions.

2.3 Accessory Compatibility Reminder

Side-mounted auxiliary contacts, fault contacts, shunt/undervoltage releases are electrically interchangeable;

Front-panel accessories are NOT interchangeable: extended cabinet handle only compatible with GV2P, unavailable for GV2ME;

⚠️ Cannot directly replace each other despite identical mounting dimensions!

Different internal mechanisms lead to inconsistent panel cutout and interlock logic; drawing revision and re-verification are required.

3. 選択の推奨事項

✅ Choose GV2ME21

1. General domestic control cabinets, system short-circuit current ≤10 kA;
2. Only local operation inside cabinet, no padlocking or external door operation required;
3. Cost-sensitive projects with no mandatory UL Type F requirement for North America.

✅ Choose GV2P21

1. システム短絡電流 >10 の;
2. ロックアウト/タグアウト (心臓) required for maintenance; need external cabinet handle;
3. 輸出設備, overseas projects (欧州連合, 東南アジア, 北米);
4. Process requirement: manual reset to OFF before reclosure after trip, to avoid accidental equipment startup.

Application Scenario Breakdown: GV2ME21 vs GV2P21

Core hardware boundary recap:

GV2ME21: Push-button | Icu=10kA @400V

GV2P21: 回転ハンドル | Icu=50kA @400V, supports LOTO padlocking, visible isolation & extended external handle

Both share identical thermal trip range 17～23A and motor protection curves. Application differences are determined by safety specifications, short-circuit capacity and operation requirements.

1. Preferred Application Scenarios for GV2ME21 (Push-button Type)

✅ Recommended Scenarios

1. General domestic civil & light industrial control cabinets, prospective short-circuit current ≤10 kA

Ordinary fans, standard water pumps, 小型コンベア, dust removal fans, auxiliary machine motors for machine tools; systems far from distribution transformers with low short-circuit current.

2. Circuit breaker only used for internal cabinet protection, no external cabinet operation required

No need for external operating mechanism; operators only open cabinet door for operation.

3. Workshop without strict mandatory LOTO lockout/tagout regulations

Loose maintenance management with no compulsory safety locking specifications.

4. Economical standard complete equipment, mass general machinery with cost control priority

包装機械, 小規模生産ライン, HVAC terminal equipment.

5. Short-cycle repeated startup, scenarios requiring rapid reset after tripping

Red button pops after trip; reset simply by pressing STOP for convenient operation.

❌ Forbidden Scenarios

1. Outgoing circuits close to transformers, busbar short-circuit current >10 の;
2. EU/North America export machines, projects requiring visible isolation and LOTO safety locking;
3. Need to install extended external cabinet operating handle;
4. 防爆エリア, 頑丈な装置, high-risk production machinery.
5. Preferred Application Scenarios for GV2P21 (Rotary Handle Type)

✅ Recommended Scenarios

1. システム短絡電流 >10 の (Primary hard selection criterion)

Distribution rooms adjacent to transformers, large-capacity busbars, power center feeder circuits with high short-circuit current requiring enhanced breaking capacity.

2. ロックアウト/タグアウト (心臓) safety locking requirement for maintenance

Production line maintenance, stamping equipment, コンベア, auxiliary hoisting mechanisms, 化学薬品 & food machinery; padlockable in OFF position to prevent accidental closing, compliant with OSHA and GB safety standards.

3. External cabinet door operation (with optional extended rotary handle)

Start/stop and open/close without opening cabinet doors, delivering better human-machine operability.

4. Export machinery & overseas projects (欧州連合, 東南アジア, 北米)

Compliant with UL508 Type F and IEC visible isolation requirements; overseas acceptance standards generally prefer rotary-operated motor circuit breakers.

5. High-risk loads to prevent blind restart after fault

Handle stays at TRIP mid-position after tripping; must turn back to OFF before closing; eliminate risk of restarting before fault troubleshooting. Suitable for mixers, crushers and hydraulic station motors.

6. Application as circuit isolating device

OFF position provides visible isolation gap; a separate disconnector can be omitted in some drawings.

❌ Not Recommended Scenarios

Extremely tight budget, low short-circuit current, no special safety specifications, purely cost-driven simple equipment.

3. Quick Selection Table by Operating Conditions

4. Common Engineering Misunderstandings Reminder
5. Do not interchange simply based on identical current rating

Even with same 17～23A setting, replacing GV2P21 with GV2ME21 will create severe short-circuit hazard if on-site short-circuit current exceeds 10 の.

2. Common practice among panel builders: GV2ME series for HVAC; GV2P series for industrial production lines, power cabinets and export equipment.
3. 補助接点 (GV2AN11/GV2AD10) are electrically interchangeable, yet front operating mechanisms differ; cabinet panel cutouts cannot be modified for direct replacement.