55.34.8.024.0040 Finder 55 Series Mini Relay 4P 7A 24V AC

The Finder 55.34.8.024.0040 is a compact 4-pole mini relay rated at 7A, designed for reliable switching in industrial control and automation applications. This 24V AC coil relay from Finder's established 55 Series combines high performance with space-saving design in demanding electrical environments.

This miniature general purpose relay provides dependable switching control for medium-current loads up to 7A across four independent poles. Its 4PDT (4 Pole Double Throw) contact configuration offers exceptional versatility for complex control circuits, while the robust construction ensures reliable operation in industrial environments from -40°C to +85°C.

Key Features

• 4-Pole 7A Switching Capacity: Handles up to 7 amps across four independent switching circuits, providing excellent flexibility for multi-circuit control applications
• 4PDT Contact Configuration: Four changeover contacts (4CO) enable complex switching logic and provide both normally open and normally closed contacts for versatile control schemes
• Lockable Test Button: Allows safe manual testing and override of relay operation during commissioning and maintenance without removing from circuit
• Mechanical Position Indicator: Visual confirmation of relay state enables quick troubleshooting and system status verification
• AgNi Contact Material: Silver-nickel contacts provide superior arc resistance and extended operational life even with inductive loads
• 24V AC Coil Operation: Compatible with standard 50/60Hz control voltages commonly used in industrial installations
• Extended Temperature Range: Operates reliably from -40°C to +85°C for harsh industrial environments
• Compact 14-Pin Design: Space-efficient form factor with 20.7mm width maximizes panel density

Applications

The Finder 55.34.8.024.0040 mini relay is ideal for industrial control panels, motor control circuits, HVAC systems, and building automation where multiple switching functions are required. Its 4-pole configuration makes it particularly suitable for three-phase motor control with auxiliary contacts, complex interlocking circuits, and applications requiring simultaneous control of multiple loads. The relay mounts on various Finder bases including 94.74, 94.04, 94.54, 94.P4, 94.84.2, 94.94.3, 94.14, 94.24, and 94.34 for flexible installation options.

Standards and Sustainability

This relay is manufactured to Finder's quality standards with professional-grade components designed for long service life in industrial environments.

Manufactured by Finder, product code 55.34.8.024.0040.

Frequently Asked Questions

What base do I need for the Finder 55.34.8.024.0040 relay?

This 14-pin relay requires a compatible Finder relay base. Suitable options include 94.74, 94.04, 94.54, 94.P4, 94.84.2, 94.94.3, 94.14, 94.24, and 94.34. The choice depends on your mounting requirements - some bases offer screw terminals, others offer spring clamp terminals, and various DIN rail or panel mounting options.

Can this 7A relay handle motor starting currents?

Yes, the AgNi (silver-nickel) contact material is specifically chosen for its excellent performance with inductive loads typical in motor circuits. The 7A rating applies to resistive loads, but the relay can handle higher inrush currents associated with motor starting. However, always verify the specific motor starting requirements against the relay's switching capacity curves for your application.

How does the lockable test button work?

The lockable test button allows manual override of the relay contacts independent of the coil voltage. When pressed, it mechanically operates the relay contacts and can be locked in the test position. This feature is invaluable during commissioning, maintenance, and troubleshooting as it allows you to simulate relay operation without energizing the 24V AC coil.

What's the difference between this 4-pole relay and single-pole alternatives?

This 4-pole relay provides four independent changeover contacts (4PDT) in a single unit, whereas single-pole relays offer only one switching contact. The 4-pole configuration is ideal for three-phase switching with an auxiliary contact, complex control logic, or applications requiring multiple simultaneous switching operations while maintaining compact panel space.

What are the physical dimensions for panel layout?

The relay itself measures 20.7mm in width with a net mass of just 0.03kg, making it very compact for panel installations. The pin length is 5.6mm for secure base connection. The exact height and depth depend on the chosen mounting base, so consult the specific base datasheet for complete dimensional information when planning your panel layout.