NEW ARRIVAL: Siemens 5SU1154-7KK06 Residual Current Circuit Breaker Now Available

Model Description

We are pleased to announce the immediate availability of the Siemens 5SU1154-7KK06 residual current circuit breaker (RCCB), an advanced electrical protection device designed for personnel safety and fire prevention in residential and commercial installations. This 2-pole device features a rated current of 40A with 30mA residual current sensitivity, providing reliable protection against earth faults in 230/400V AC systems. The compact 45mm rail-mounting design integrates seamlessly in distribution boards, while the integrated overcurrent protection eliminates the need for separate MCB installation. The 5SU1154-7KK06 combines Type A residual current detection capability with C-characteristic overcurrent release, making it suitable for circuits with electronic loads and standard motor starting currents. Screw terminals accommodate conductors from 1 to 25 mm², ensuring flexible installation across varied wiring practices. Mechanical service life exceeds 20,000 operating cycles, providing long-term reliability in building automation applications.

Key Features

The 5SU1154-7KK06 delivers comprehensive protection performance with 10kA rated breaking capacity under short-circuit conditions, ensuring safe fault current interruption. The device operates reliably across -25°C to +55°C temperature range, with storage capability from -40°C to +70°C. Residual current detection responds within 30ms for standard AC faults and 40ms for pulsating DC components, meeting IEC 61008-1 and IEC/EN 61009-1 standards. The unit features IP20 protection rating for terminals and achieves IP40 with proper distribution board installation. Visual trip indication provides clear fault identification, while manual test button enables periodic functionality verification. Overcurrent protection covers 16A to 40A adjustable range with Class C tripping characteristic (5-10x In), accommodating motor starting surges without nuisance tripping. The device carries CE, CB, and CCC certifications, ensuring acceptance in international building installations. Mechanical dimensions of 90mm height x 45mm width x 76mm depth optimize space utilization in compact electrical panels.

Related Models in the 5SU Series

The 5SU product family offers extensive configuration options for diverse application requirements. The 5SU1154-7KB06 provides identical 40A rating with 10mA residual sensitivity for enhanced protection in medical installations. For higher current applications, the 5SU1164-7KK06 delivers 63A capacity with 30mA sensitivity. The 5SU1354-7KK06 variant features 4-pole configuration for three-phase systems. Customers requiring different overcurrent characteristics can select 5SU1654-7KK06 with D-curve for high inrush loads. The 5SU1154-7KB06 supplies alternative 16A rating for branch circuit protection. The 5SU1654-7KK06 offers adjustable residual current sensitivity from 10mA to 300mA for specialized industrial applications. All models share identical mounting dimensions, terminal layouts, and dual protection functionality, enabling standardized panel design while optimizing current rating and sensitivity for specific circuit requirements.