Chint 6L2-A 100/5A 指針式交流電流計

Core Parameters and Application Scenarios
仕様パラメータpole box electrical

測定範囲: Connected via a current transformer, the nominal range is 100A (the actual input signal is the 5A secondary current of the transformer).

正確さ: クラス 1.5, meeting the requirements of conventional industrial measurement.

全体の寸法: The mounting hole size is approximately 76mm × 76mm, suitable for installation in standard distribution cabinets.

作業環境: Temperature -5℃ ~ 40℃, 湿度 ≤ 90%, 高度 ≤ 1000 メートル, applicable to indoor environments without strong corrosion.

代表的な用途

産業用配電: Monitoring three-phase or single-phase currents of equipment such as motors and transformers, 例えば, factory distribution cabinets and building distribution boxes.

エネルギー管理: Cooperating with current transformers (such as Chint RCT series) to realize real-time current monitoring of power systems, supporting lines below 0.66kV.

仮設電源: Used as a basic current indicating tool in mobile distribution boxes at construction sites and temporary facilities.

Supporting Equipment and Installation Points
Selection of Current Transformer

推奨モデル: Chint RCT series annular transformers. The through-hole diameter should match the cable specifications (例えば, RCT-60 is suitable for 60mm wire diameter), with a current ratio of 100/5A and accuracy of Class 0.5.

配線要件: The secondary side (S1, S2) of the transformer must be connected in series with the ammeter, and the S2 terminal must be reliably grounded to avoid high-voltage hazards caused by open circuits.

インストール手順

Mechanical Fixing: Embed the ammeter into the panel of the distribution cabinet, tighten the fixing nuts on the back, and ensure the dial is vertical and flat.

電気接続:

– Connect transformer S1 to the “+” terminal of the ammeter, S2 to the “-” ターミナル, and ground it.

– For a three-phase system, three transformers and three ammeters need to be connected separately, paying attention to phase consistency.

Polarity Verification: Before powering on, use a multimeter to check the on-off status of the transformer secondary circuit to ensure there is no short circuit or open circuit.

Ⅲ. 価格と購入チャネル

市場相場

Price per Unit: 19.75 元から 39.33 元. まとめ買い交渉可能です.

Supporting Cost: The RCT-60 transformer is approximately 50 各元, and the configuration depends on the number of cables.

購入の提案

Platform Selection: Industrial product platforms (such as Lichuang Mall) have transparent prices and sufficient spot goods. 電子商取引プラットフォーム (Suning, タオバオ) are suitable for small-batch purchases.

トラブルシューティングとメンテナンス
Handling of Common Problems

Pointer Not Moving:

– Check if the transformer secondary circuit is open and if the fuse is blown.

– Test whether there is current on the primary side of the transformer (例えば, using a clamp meter) to rule out faults on the load side.

Abnormal Reading:

– Confirm that the transformer turns ratio matches the ammeter range (例えば, a 100/5A transformer corresponds to the 100A scale).

– Clean the dial glass and pointer to avoid dust affecting observation.

定期メンテナンス

定期点検: Clean the housing and terminals every quarter, and calibrate the accuracy every year (entrust a third-party institution if necessary).

環境保護: Avoid use in high-temperature, 湿気が多い, または強い電磁干渉環境. Install a protective cover if necessary.

Upgrade Schemes and Alternative Products
Recommended Intelligent Digital Meters

PA/PZ666 Series: Supports RS485 communication, over-limit alarm, and data transmission, with an accuracy of Class 0.5. Suitable for scenarios requiring remote monitoring, おおよその価格 60 ～ 120 元.

NXBLE Series Circuit Breaker Integration Scheme: Some residual current circuit breakers (such as NXBLE-63) have a built-in current display function, which can replace traditional pointer meters to realize integrated protection and monitoring.

Model Replacement Instructions

– もし “6L2A” mentioned by the user is an old model, it may correspond to the 6L2-A series. The parameters of the two are compatible and can be directly replaced.

– For high-precision requirements (such as laboratories), it is recommended to choose the 42L6-A series (accuracy Class 1.0), おおよその価格 22 単位あたり元.

Safety and Compliance Tips
認証と規格

– The ammeter complies with the GB/T 13978-2008 標準, and the transformer complies with GB/T 20840.2. Some models have passed the CCC certification.

– For export scenarios, models with CE and UL certifications should be selected (such as the international version of Chint RCT series).

動作仕様

– It is strictly forbidden to disassemble the ammeter when the primary side of the transformer is live; the upper-level power supply must be disconnected first.

– Disconnect the transformer secondary circuit before long-term shutdown to prevent residual magnetism from affecting accuracy.