65.31.8.024.4309 Finder Power relay 1NO1 NC 20A 24V

65.31.8.024.4309 Finder Power relay 1NO1 NC 20A 24V

Finder 65.31.8.024.4309 industrial electromechanical power relay featuring a 24 V AC coil, one 30 A normally open contact with a minimum 3 mm contact gap, silver tin oxide contact material and Faston 250 connections for industrial electrical switching and automation.

SKU: 65.31.8.024.4309Alt SKU: 653180244309MPN: 65.31.8.024.4309
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Why Choose the Finder 65.31.8.024.4309 Industrial Power Relay?

The Finder 65.31.8.024.4309 is a high-current 30 A industrial electromechanical power relay designed for switching electrical loads in machinery, heating equipment, industrial automation and electrical control systems. Belonging to the Finder 65 Series, this relay combines a 24 V AC operating coil with a normally open power contact for dependable control of industrial equipment.

Featuring a single normally open contact (1 NO / SPST-NO), silver tin oxide (AgSnO2) contact material and a minimum 3 mm contact gap, the Finder 65.31.8.024.4309 provides reliable switching performance for appropriately rated electrical loads. Its monostable electromechanical mechanism ensures that the contact returns to its normally open position when the operating coil is de-energised.

With a 30 A rated contact current, 250 V AC rated contact voltage and 7,500 VA AC-1 resistive switching capacity, this relay is suited to industrial applications requiring substantial switching capability. Its Faston 250 quick-connect terminals facilitate electrical connections, while the 65.31 construction supports integration into industrial control panels, machinery assemblies and OEM equipment.

Key Advantages

  • 30 A rated contact current for demanding industrial switching applications.
  • 24 V AC operating coil suitable for appropriately rated low-voltage AC control circuits.
  • Single normally open contact (1 NO / SPST-NO) provides straightforward electrical load control.
  • Minimum 3 mm contact gap provides increased separation between open contacts.
  • Silver tin oxide (AgSnO2) contacts support dependable switching performance.
  • 7,500 VA AC-1 resistive switching capacity for suitable electrical loads.
  • 120 A maximum peak contact current for 5 ms under specified conditions.
  • Faston 250 quick-connect terminals simplify wiring and servicing.
  • Monostable operation returns the contact to its normally open position when the coil is de-energised.
  • Suitable for industrial heating, electrical distribution and machinery control applications.
  • Part of the established Finder 65 Series of high-current power relays.

Key Features

  • Finder 65 Series industrial power relay.
  • 65.31 relay construction with Faston electrical connections.
  • 24 V AC nominal coil voltage.
  • 50/60 Hz AC coil operation.
  • One normally open contact (1 NO / SPST-NO).
  • 30 A rated contact current.
  • 250 V AC rated contact voltage.
  • 400 V AC maximum switching voltage.
  • 7,500 VA rated resistive load (AC-1).
  • 1,250 VA AC-15 switching rating at 230 V AC.
  • 1.5 kW single-phase motor rating at 230 V AC.
  • Silver tin oxide (AgSnO2) contact material.
  • Minimum 3 mm open-contact gap.
  • 2.2 VA rated AC coil consumption.
  • Faston 250 terminals measuring 6.3 × 0.8 mm.
  • Non-latching electromechanical switching mechanism.

High-Current Switching for Industrial Electrical Control

The Finder 65.31.8.024.4309 provides an effective interface between a low-voltage AC control circuit and a higher-current electrical load. When its 24 V AC coil is energised, the normally open contact closes and allows current to flow through the connected load circuit. When the coil is de-energised, the contact opens, interrupting the circuit.

The Finder 65 Series is designed for applications requiring higher switching capacity than conventional low-current interface relays. With a 30 A rated contact current and 7,500 VA AC-1 resistive switching capacity, the 65.31.8.024.4309 is suitable for appropriately rated heating systems, industrial appliances, electrical distribution assemblies and machinery control circuits. Its silver tin oxide contact material and minimum 3 mm contact opening support dependable switching under the manufacturer's specified operating conditions.

The relay also offers a 1.5 kW single-phase motor rating at 230 V AC and an AC-15 rating of 1,250 VA at 230 V AC. These application-specific ratings are important when selecting the relay for motors, electromagnetic equipment and other inductive loads. Correct selection should account for inrush current, switching frequency, electrical life, protective devices and the relevant utilisation category.

Typical Applications

  • Industrial heating equipment and resistive load switching.
  • Electrical distribution cabinets and power control assemblies.
  • Industrial machinery and automation control panels.
  • Burner, boiler and industrial oven control systems.
  • Commercial and industrial appliance control.
  • Industrial washing machines and laundry equipment.
  • Backup generators and auxiliary power control circuits.
  • Single-phase motor switching within the specified motor rating.
  • Heating, ventilation and air conditioning equipment.
  • Industrial process control and electrical load management.
  • OEM machinery and high-current electrical assemblies.

Technical Specifications

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Device Type Power Relay
Terminal Type Faston / flat-pin
Switching Current (A) 30 A
Load Voltage 400 V AC
Manufacturer Finder
Series 65 Series Power Relays
Model 65.31.8.024.4309
Product type Industrial electromechanical power relay
Relay family 65.31
Nominal coil voltage 24 V AC
Coil supply type AC
Coil frequency 50/60 Hz
AC coil operating range 19.2–26.4 V AC
Rated AC coil consumption 2.2 VA
Contact configuration 1 NO / SPST-NO
Number of poles 1
Rated contact current 30 A
Maximum peak contact current 120 A for 5 ms
Rated contact voltage 250 V AC
Maximum switching voltage 400 V AC
Rated resistive load (AC-1) 7,500 VA
Rated AC-15 load at 230 V AC 1,250 VA
Single-phase motor rating at 230 V AC 1.5 kW
DC-1 switching capacity at 24 V DC 30 A
DC-1 switching capacity at 110 V DC 1.1 A
DC-1 switching capacity at 220 V DC 0.7 A
Minimum switching load 1,000 mW
Contact material Silver tin oxide (AgSnO2)
Minimum open-contact gap 3 mm
Coil-to-contact impulse withstand voltage 4 kV
Dielectric strength between open contacts 2,500 V AC
Mechanical life with AC coil 10 million cycles
Electrical life at rated AC-1 load 30,000 cycles
Operating time 15 ms
Release time 4 ms
Ambient operating temperature −40 to +75 °C
Environmental protection category RT I
Relay operation Monostable / non-latching
Terminal type Faston 250 quick-connect
Terminal dimensions 6.3 × 0.8 mm
Application category Industrial power switching and electrical control

Frequently Asked Questions

What is the Finder 65.31.8.024.4309 used for?

The Finder 65.31.8.024.4309 is a 30 A industrial electromechanical power relay used for switching electrical loads in industrial heating systems, machinery, electrical distribution equipment, automation panels and high-current control applications.

What coil voltage does the Finder 65.31.8.024.4309 require?

The relay requires a 24 V AC nominal coil supply operating at 50/60 Hz. The Finder 65.31 AC coil specification gives an operating voltage range of 19.2–26.4 V AC and a rated coil consumption of 2.2 VA.

What contact configuration does the Finder 65.31.8.024.4309 provide?

The relay features one normally open contact (1 NO / SPST-NO) with a minimum 3 mm contact gap. The contact closes when the coil is energised and returns to its open position when the coil is de-energised.

What is the switching capacity of the Finder 65.31.8.024.4309?

The relay has a 30 A rated contact current, 250 V AC rated contact voltage and 7,500 VA AC-1 resistive switching capacity. The Finder 65.31 relay family also specifies a 1.5 kW single-phase motor rating at 230 V AC. The permissible load depends on the application and the relevant switching category.

What electrical connections does the Finder 65.31.8.024.4309 use?

The Finder 65.31.8.024.4309 uses Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm. These connections support convenient wiring and servicing when the relay is integrated into suitable industrial electrical assemblies.

Trusted by Industrial Automation and Electrical Control Professionals

Finder 65 Series power relays are designed for demanding industrial switching applications where high-current capability, dependable operation and practical electrical connections are essential. Combining a 30 A normally open contact, 24 V AC operating coil, silver tin oxide contact material and Faston terminals, the Finder 65.31.8.024.4309 offers a versatile solution for electrical engineers, industrial equipment manufacturers, control panel builders and maintenance professionals.