Siemens 3KX3552-1YC Auxiliary Switch – 1NO+1NC for 3KL83 / 3KA83 Superswitch

The Siemens 3KX3552-1YC is an authentic auxiliary switch module engineered specifically for Siemens Superswitch 3KL83 and 3KA83 series switch disconnectors. Equipped with 1 Normally Open (1NO) + 1 Normally Closed (1NC) contacts, it provides real-time switch position feedback, status monitoring, and electrical interlocking for PLCs, motor control circuits, and automated power distribution systems.

Key Features & Technical Details

• 1NO + 1NC Contact Configuration: Delivers 1 Normally Open and 1 Normally Closed auxiliary poles for flexible control logic, remote signaling, and circuit safety interlocks.

• Direct Mechanical Linkage: Synchronizes directly with the main shaft of 3KL83/3KA83 switch disconnectors to ensure instant, accurate contact switching simultaneous with the main power poles.

• Dedicated Compatibility: Designed specifically as a snap-on accessory for Siemens Superswitch 3KL83 (fuse switch disconnectors) and 3KA83 (switch disconnectors).

• Compact & Easy Installation: Modular design allows quick, tool-free mounting directly onto the main switch housing, preserving valuable panel space.

• High Operational Reliability: Manufactured to Siemens quality standards for long mechanical service life and low contact resistance, even in high-vibration industrial environments.

Ideal Applications

• Real-Time Switch Position Feedback to PLCs & SCADA Systems

• Electrical Safety Interlocking & Sequence Control Circuits

• Motor Control Centers (MCCs) & Main Power Switchboards

• Industrial Automation, Power Distribution Panels & OEM Machinery

❓ Frequently Asked Questions (FAQs)

Q1: Which Siemens switches are compatible with the 3KX3552-1YC auxiliary switch?

A: This auxiliary switch is specifically designed as an accessory for Siemens Superswitch 3KL83 (fuse-switch disconnectors) and 3KA83 (switch disconnectors) series.

Q2: What is the contact configuration provided by this auxiliary module?

A: It features a 1NO + 1NC (1 Normally Open + 1 Normally Closed) auxiliary contact arrangement.

Q3: How does the auxiliary switch detect the position of the main switch?

A: It is mechanically linked to the operating mechanism of the main switch disconnector, causing its contacts to change state simultaneously with the main power contacts.

Q4: Is this auxiliary switch suitable for safety interlocking with PLCs?

A: Yes, its rapid and reliable contact switching makes it ideal for sending status feedback signals to PLCs, safety relays, or status indicator lamps on control panels.

🔗 Compatible Accessories & Cross-Selling Products

• Siemens 3KL83 Series Fuse Switch Disconnectors: Heavy-duty main switches compatible with this auxiliary switch.

• Siemens 3KA83 Series Switch Disconnectors: Main load break disconnectors designed for seamless 3KX3552-1YC snap-on mounting.

• Siemens 3NA Series NH Fuse Links: Matching high-capacity HRC fuses for use inside 3KL83 fuse switch disconnectors.