LUCA05BL Product Specification

LUCA05BL is a standard control unit of Schneider’s TeSys U series, suitable for three-phase motors. It features an adjustable rated current of 1.25–5A, a control voltage of 24V DC, and a Class 10 thermal overload rating. Equipped with protection against overload, 短絡, phase loss, phase interruption, and ground fault, it is designed for direct-on-line starting control of motors below 1.5kW (400V).

Product Positioning & Applications

– As a standard control unit of the TeSys U series, it combines with compatible power bases (例えば, LUB05) to form a direct-on-line starter, providing basic control and protection for three-phase motors.

アプリケーションシナリオ: Light to medium-load working conditions such as pumps, fans, compressors, and small conveyor lines, suitable for industries including textile, papermaking, chemical engineering, and food & beverage.

Differentiation from Series Peers: Unlike LUCB (advanced type with alarm/test functions) and LUCC (communication type), LUCA only provides basic protection with a lower cost.

Selection & Replacement

Compatible Bases: LUB05, LUB05BL, 等. The base must match the rated current of the control unit.

Replacement References: Equivalent models from Chint NJR2 series and ABB MS116 series. しかし, interface and protection logic differences exist; it is necessary to verify installation dimensions and control circuit parameters.

インストール & Maintenance Guidelines

1. Install via DIN rail or screw mounting; modular plug-and-play design enables quick replacement.
2. The control circuit requires an external 24V DC power supply. Set Ir (1.25–5A) on the main circuit according to the motor’s rated current.
3. Manual reset is required after a fault. Ground fault protection is only for equipment and does not replace personal safety protection.
4. Operating temperature range: -25～+60℃. Avoid dusty, humid, and corrosive environments; regularly check wiring and terminal tightness.

Procurement & Supply

Common Channels: Schneider authorized distributors, industrial e-commerce platforms. Reference price: approximately €60–100 (tax included). In-stock delivery typically takes 2–5 working days.

Compatible Accessories: Can be paired with LUFDA local alarm module and LULC remote signal module to expand status monitoring functions.

Detailed Comparison Between Schneider TeSys U Series LUCA05BL and LUCB05BL

Key Difference Summary

1. Functional Differences: The core advantages of LUCB05BL are overload pre-alarm + fault alarm + manual test, which can detect motor overload trends in advance to avoid downtime losses. In contrast, LUCA05BL only provides post-fault protection with no pre-alarm capability.
2. Expansion Capability: LUCB05BL can be connected to external alarm lights, PLC, or remote monitoring modules to adapt to automated systems; LUCA05BL has no expansion interface and only meets basic control needs.
3. Cost & Cost-Effectiveness: LUCA05BL is suitable for cost-sensitive scenarios with simple working conditions; LUCB05BL is ideal for industrial scenarios requiring high reliability. Although it has a higher price, it can reduce fault troubleshooting time and maintenance costs.

Selection Recommendations

– If end customers only require “basic motor protection against damage”, prioritize LUCA05BL for higher cost-effectiveness.

– If customers operate in scenarios such as automated factories and production lines that require fault pre-alarm and remote monitoring, recommend LUCB05BL to improve equipment operation rate.

Cross-Brand Selection Comparison Table: Schneider LUCA05BL/LUCB05BL vs. Chint NJR2-5 vs. ABB MS116-5

Key Selection Conclusions

1. Chint for Cost Priority: NJR2-5 has the lowest price, suitable for domestic low-end equipment supporting, but lacks short circuit and ground fault protection and needs to be used with additional circuit breakers.
2. ABB for Integrated Control: MS116-5 is an integrated protection circuit breaker with built-in closing/opening functions, requiring no base matching, suitable for scenarios with high integration requirements.
3. Schneider LUCB for Automated Scenarios: Equipped with alarm and test functions, it can be connected to PLCs for remote monitoring, reducing fault troubleshooting time, ideal for high-end production lines.
4. Schneider LUCA for Basic Protection: Balanced functions with a lower price than LUCB and ABB, suitable for overseas small and medium-sized customers without monitoring needs.

Export Adaptation Tips (For Markets Such as Algeria)

– Both Schneider and ABB products are certified by IEC and CE, directly meeting the import certification requirements of African countries such as Algeria.

– Chint NJR2-5 requires additional local access documents such as SASO certification. Some channels can handle the certification on behalf of customers, with a cost increase of approximately 10%–15%.