ABB 1SVR405611R4100 Plug-in Interface Relay

1. Product Overview

The ABB 1SVR405611R4100 is a plug‑in interface relay designed for control circuits to perform logic control, signal isolation, and signal amplification. Featuring a standard plug‑in socket, it allows fast installation, maintenance, and replacement. Widely used in industrial control cabinets, automation equipment, and distribution systems to provide reliable isolation and signal switching in control loops.

2. Main Technical Specifications (Typical)

• Model: 1SVR405611R4100

• Product Type: Plug‑in Interface Relay

• Coil Rated Voltage: AC/DC 24–240 V (depending on version)

• Contact Configuration: 1 Normally Open + 1 Normally Closed (1 NO + 1 NC)

• Rated Contact Current: 8 A @ 250 V AC

• Contact Material: AgNi or equivalent industrial grade

• Insulation Voltage: ≥ 1000 V

• Operating Life: Mechanical ≥ 10⁷ operations; Electrical ≥ 10⁵ operations

• Mounting: Plug‑in socket base

• Response Time: AC: ≤ 10 ms; DC: ≤ 5 ms (typ.)

• Operating Temperature Range: –25 ℃ to +55 ℃

• Protection Class: IP20 (relay body, installed inside cabinet)

• Base Type: 8‑pin or 11‑pin socket base (depending on configuration)

3. Advantages and Features

• Modular Design
  Plug‑in structure enables quick installation, removal, and replacement, reducing maintenance costs.

• Reliable Control Isolation
  Coil and contacts are fully electrically isolated, protecting control circuits from interference.

• High Switching Capability
  Contacts rated for industrial loads and suitable for driving downstream circuits.

• Multi‑Voltage Coil Compatibility
  Supports AC/DC control voltages commonly used in industrial control systems.

• Industrial‑Grade Stability
  Designed to withstand vibration, shock, and temperature variations in industrial environments.

4. Applications

• Industrial automation control cabinets

• PLC/DCS control loop output isolation

• Signal state conversion and drive circuits

• Machine tools, conveyors, and packaging machinery

• Distribution monitoring and auxiliary protection circuits

5. Precautions for Installation and Use

• Ensure relay coil voltage matches the control circuit supply

• De‑energize before plugging or unplugging to avoid contact damage

• Install inside control cabinets with appropriate protection, avoiding moisture and corrosive gases

• Secure all terminal connections to avoid loose contacts

• Maintenance and replacement should be performed by qualified electrical personnel

• Periodically inspect contact condition to ensure normal operation

The structure and details of the product：

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