Finder Relay 55.34.9.220.0040 — 220 V DC coil, 7 A, 4 changeover contacts

Finder Relay 55.34.9.220.0040 is a compact electromagnetic relay with a 220 V DC coil and four changeover (SPDT) contacts. It is designed for switching and control applications in automation systems, electrical panels and industrial equipment. The relay provides galvanic isolation between the coil and contacts and enables switching of multiple circuits from a single coil input, making it suitable for integration into control cabinets and machinery.

Advantages

The relay combines compact dimensions with a clear contact arrangement of four SPDT circuits and a rated contact current of 7 A per contact. The 220 V DC coil permits direct use with common DC control supplies. Robust contact construction ensures consistent switching performance and reliable isolation reduces interference between control and load circuits. The device is suitable for rack or panel mounting in confined spaces where several isolated changeover contacts are required.

Suitable for

• Automation control panels and programmable logic controllers (PLC) interfaces
• Industrial machinery control where multiple isolated outputs are needed
• Electrical distribution and switching tasks in control cabinets
• Remote switching and signal routing in building management systems

Key specifications

• Coil voltage: 220 V DC
• Contact configuration: 4 × changeover (SPDT)
• Rated contact current: 7 A per contact
• Contact type: electromagnetic, mechanical switching
• Isolation: galvanic separation between coil and contacts
• Intended application: switching and control in automation and industrial equipment

How to use

Mount the relay according to the manufacturer's mounting instructions in a suitable relay socket or panel location, ensuring secure electrical connections for coil and contact terminals. Apply 220 V DC to the coil terminals to energize the relay and switch the changeover contacts; de-energizing the coil returns contacts to their default positions. Verify wiring and terminal assignments before applying power, and observe correct polarity for the DC coil. Use proper cable sizes and protective devices in the control circuit to match the rated contact current.

Usage recommendations

Ensure the relay is used within its rated electrical limits: do not exceed the 7 A contact current and use proper overcurrent protection. Install the relay in a dry, ventilated environment and avoid exposure to excessive vibration or temperature outside the device specifications. Regularly inspect contact condition in applications with frequent switching or inductive loads, and add appropriate suppression elements (snubbers or diodes) when switching inductive circuits to prolong contact life.