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S1-S2 Accessories
In the realm of low-voltage power distribution and motor control, the S1 and S2 series represent a cornerstone of modular protection. The accessories for these platforms are engineered to extend functionality, enhance safety, and simplify integration within switchgear assemblies. This category encompasses a comprehensive range of add-on componen...
In the realm of low-voltage power distribution and motor control, the S1 and S2 series represent a cornerstone of modular protection. The accessories for these platforms are engineered to extend functionality, enhance safety, and simplify integration within switchgear assemblies. This category encompasses a comprehensive range of add-on components, including auxiliary contacts for status signaling, shunt trips and undervoltage releases for remote tripping, motor operators for automated reset, and mechanical interlocking kits for redundancy. These components are designed to mount directly onto the S1 or S2 molded case circuit breaker (MCCB) frame, typically rated for currents up to 160A (S1) and 250A (S2), with voltage ratings up to 690V AC. The modular design ensures seamless compatibility, allowing engineers to configure protection schemes without altering the base breaker's interrupting capacity, which can reach up to 36kA at 415V AC. Whether you refer to them as "S1-S2 Zubehör" in German-speaking markets or "accessori S1-S2" in Italian technical literature, these parts are critical for building intelligent, compliant distribution networks.
These accessories are predominantly deployed in industrial control panels, commercial building distribution boards, and critical infrastructure like data centers. In motor control centers (MCCs), auxiliary contacts provide feedback to PLCs for status monitoring, while shunt trips enable emergency stop circuits to comply with IEC 60947-2. Undervoltage releases are essential for machine safety, preventing automatic restart after a power dip. Mechanical interlocks are used in changeover schemes for generator or UPS backup systems, ensuring only one source is connected at a time. The compact footprint of S1/S2 accessories makes them ideal for space-constrained environments, such as prefabricated substations or marine switchboards, where reliability and ease of maintenance are paramount.
The S1-S2 accessories category includes several key subcategories: auxiliary contact blocks (e.g., code S1-AUX-11 for 1NO+1NC configuration), shunt trip releases (e.g., S1-ST-230 for 230V AC operation), undervoltage releases (e.g., S2-UVR-400 for 400V AC), and motor operators (e.g., S1-MO-24 for 24V DC). The product code structure typically follows a pattern: [Frame]-[Function]-[Voltage/Configuration], where "S1" or "S2" denotes the breaker frame size. For instance, S2-AUX-20 indicates a 2NO auxiliary contact for the S2 frame. These codes are standardized across major manufacturers, ensuring interchangeability. Additionally, terminal shrouds, phase barriers, and rotary handle mechanisms are available to complete the installation, all designed to maintain the breaker's IP20 or higher protection rating.
Partnering with Electric Automation Network ensures access to genuine S1-S2 accessories with real-time pricing and up to 65% discount off list prices. Our engineering team provides personalized technical support to verify compatibility with your specific breaker model and application requirements. We offer express worldwide shipping from our global logistics hubs, with detailed documentation including CAD drawings and wiring diagrams for each article. Whether you need a single shunt trip for a retrofit or bulk components for a new switchboard project, we streamline procurement with multilingual support and fast delivery.
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