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Finder 65.31.9.080.4300 – 65 Series Power relays
Finder 65.31.9.080.4300 industrial electromechanical power relay, identified with an 80 V DC nominal coil and a 30 A single normally open contact configuration. Finder 65.31-4300 series characteristics include silver tin oxide contacts, a minimum 3 mm contact gap, Faston 250 terminals and rear flange mounting. Confirm exact coil specifications and availability with the manufacturer.
Why Choose the Finder 65.31.9.080.4300 Power Relay?
The Finder 65.31.9.080.4300 is an industrial 30 A electromechanical power relay from the Finder 65 Series, designed for switching high-current electrical loads in automation systems, machinery and electrical control equipment. This model is identified by its 80 V DC nominal coil voltage and single normally open contact (SPST-NO / 1 Form A).
The relay belongs to the 65.31-4300 high-current switching range, which offers a 30 A contact rating, 250 V AC rated contact voltage and 7,500 VA AC1 resistive switching capacity. Its silver tin oxide (AgSnO₂) contact material provides a cadmium-free contact option for compatible industrial applications.
Featuring a minimum 3 mm open-contact gap, Faston 250 quick-connect terminals and a rear flange mounting arrangement, the Finder 65.31.9.080.4300 is suited to equipment requiring a high-current normally open switching function controlled by a nominal 80 V DC supply.
Specification note: The 65.31-4300 series characteristics are documented in Finder 65 Series technical literature. The exact 80 V DC coil variant should be confirmed against the manufacturer's current part-specific documentation before purchase or installation, particularly for coil resistance, operating voltage limits and availability.
Key Advantages
- 30 A rated contact current for demanding industrial electrical switching.
- 80 V DC nominal coil for equipment using a compatible DC control supply.
- Single normally open contact (SPST-NO) for straightforward load control.
- Minimum 3 mm open-contact gap for increased physical contact separation.
- Silver tin oxide (AgSnO₂) contacts for industrial switching applications.
- 7,500 VA AC1 resistive switching capacity for appropriately rated loads.
- Faston 250 quick-connect terminals for convenient electrical connections.
- Rear flange mounting for installation on a compatible panel or chassis.
- Non-latching operation returns the contact to its open position when coil power is removed.
- Suitable for industrial automation, electrical power control and machinery applications.
Key Features
- Finder 65 Series power relay.
- 30 A rated contact current.
- 80 V DC nominal coil voltage.
- One normally open contact (1 NO).
- SPST-NO / 1 Form A contact configuration.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage, subject to applicable conditions.
- 7,500 VA AC1 resistive load rating.
- Silver tin oxide (AgSnO₂) contact material.
- Minimum 3 mm open-contact gap.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Rear flange mounting arrangement.
- Four electrical terminals for the coil and normally open contact.
- Monostable, non-latching operation.
- Industrial operating temperature capability according to the 65 Series specifications.
High-Current Switching for 80 V DC Control Systems
The Finder 65.31.9.080.4300 operates as an electrically controlled switch. When the DC coil is energised at its specified operating voltage, the normally open contact closes and connects the load circuit. When the coil supply is removed, the contact returns to its normally open position.
Its single normally open contact is particularly useful where a control signal must activate one high-current load. The 30 A contact rating makes the 65.31-4300 configuration suitable for appropriately rated resistive loads, industrial heating equipment and other compatible electrical circuits.
The minimum 3 mm open-contact gap provides increased physical separation between the contacts when the relay is de-energised. This is an important characteristic for equipment designed around the contact-gap requirements of the 65.31-4300 range. The complete installation must nevertheless satisfy the applicable electrical safety standards.
The Faston 250 terminals allow connection using compatible 6.3 × 0.8 mm receptacles, while the rear flange provides a practical mounting arrangement for industrial panels and equipment enclosures.
Typical Applications
- Industrial automation and electrical control panels.
- Equipment designed for 80 V DC relay control circuits.
- High-current resistive load switching.
- Industrial heating and temperature control equipment.
- Industrial machinery and manufacturing systems.
- Electrical power management equipment.
- Commercial and industrial lighting control.
- Building automation and electrical installations.
- Industrial process control systems.
- Ventilation and HVAC equipment control.
- Conveyor systems and material handling equipment.
- Maintenance and replacement of compatible industrial relays.
- Applications requiring a 30 A normally open contact with an 80 V DC nominal coil.
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 | |
| Mounting Type | Panel | |
| Manufacturer | Finder | |
| Series | 65 Series Power Relays | |
| Model | 65.31.9.080.4300 | |
| Product type | Industrial electromechanical power relay | |
| Contact configuration | SPST-NO / 1 Form A | |
| Number of poles | 1 | |
| Normally open contacts | 1 | |
| Rated contact current | 30 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC, subject to insulation and installation requirements | |
| Rated resistive load (AC1) | 7,500 VA | |
| Rated inductive load (AC15 at 230 V AC) | 1,250 VA | |
| Single-phase motor rating at 230 V AC | 1.5 kW | |
| Nominal coil voltage | 80 V DC — confirm exact variant | |
| Coil type | DC, non-latching | |
| Series nominal DC coil consumption | 1.3 W | |
| Indicative nominal coil current | Approximately 16.3 mA, calculated from 1.3 W at 80 V DC | |
| Indicative nominal coil resistance | Approximately 4.92 kΩ, calculated from nominal voltage and power | |
| Coil operating voltage range | Confirm against the exact 80 V DC coil specification | |
| Contact material | Silver tin oxide (AgSnO₂) | |
| Open-contact gap | At least 3 mm | |
| Mounting type | Chassis / panel mounting | |
| Mounting arrangement | Rear flange | |
| Terminal type | Faston 250 quick-connect | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Number of electrical terminals | 4 | |
| Series operating temperature range | −40 to +75 °C | |
| Series mechanical endurance, DC coil | Up to 30 million operations under specified conditions | |
| Series operating time | Approximately 15 ms | |
| Series release time | Approximately 4 ms | |
| Coil-to-contact impulse withstand voltage | 4 kV | |
| Environmental protection category | RT I | |
| Application | Industrial automation, high-current load switching and electrical control systems |
Frequently Asked Questions
What is the Finder 65.31.9.080.4300 used for?
The Finder 65.31.9.080.4300 is an industrial power relay intended for switching compatible electrical loads in machinery, automation systems and control panels. Its specified configuration is a 30 A normally open contact with an 80 V DC nominal coil.
What is the coil voltage of the Finder 65.31.9.080.4300?
The part number identifies an 80 V DC nominal coil. This is different from more commonly encountered 24 V, 48 V and 60 V DC versions. The exact coil specification and product availability should be confirmed with Finder or an authorised distributor.
What is the coil current of the 80 V DC version?
Using the Finder 65 Series nominal DC coil consumption of 1.3 W, the calculated current at 80 V DC is approximately 16.3 mA. This is an indicative calculation rather than a confirmed part-specific measurement.
What is the operating voltage range of the 80 V DC coil?
The exact operating voltage range should be checked against the manufacturer's documentation for the 80 V DC coil variant. Do not assume that the operating limits of a different coil-voltage version are automatically interchangeable.
What is the contact rating of this relay?
The Finder 65.31-4300 configuration has a 30 A rated contact current at 250 V AC, with a rated resistive switching capacity of 7,500 VA. Actual permissible loads depend on voltage, switching category and operating conditions.
How many contacts does the Finder 65.31.9.080.4300 have?
The relay has one normally open contact (SPST-NO / 1 Form A). The contact closes when the coil is energised and opens when coil power is removed. It does not provide a normally closed or changeover contact.
What is the benefit of the 3 mm contact gap?
The 65.31-4300 relay configuration features a minimum 3 mm open-contact gap, providing increased physical separation when the contact is open. The overall equipment design must still comply with applicable electrical safety and isolation requirements.
How is the Finder 65.31.9.080.4300 mounted?
The Finder 65.31 configuration uses a rear flange mounting arrangement for compatible panel or chassis installations. Electrical connections are made through Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm.
What contact material is used in this relay?
The .4 contact-material designation identifies silver tin oxide (AgSnO₂). This cadmium-free contact material is used for switching compatible industrial electrical loads.
What is the difference between the Finder 65.31.9.080.4300 and 65.31.9.060.4300?
Both part numbers identify the 65.31-4300 30 A normally open contact configuration. The key distinction is the nominal coil voltage: 65.31.9.080.4300 specifies 80 V DC, while 65.31.9.060.4300 specifies 60 V DC. They should not be substituted without checking the control supply and exact manufacturer specifications.
Can the Finder 65.31.9.080.4300 switch DC loads?
The 65.31-4300 relay range supports switching compatible DC loads, but the permissible current depends strongly on the DC voltage and load characteristics. Inductive loads and higher-voltage DC circuits require particular care. Consult the manufacturer's DC breaking-capacity data before selecting the relay.
Does this relay require a continuous coil supply?
Yes. The Finder 65.31-4300 is a non-latching electromechanical relay. The coil must remain energised to keep the normally open contact closed. When coil power is removed, the contact returns to its open state.
A Practical Solution for Industrial Power Switching
The Finder 65.31.9.080.4300 combines the high-current switching characteristics of the Finder 65.31-4300 range with an 80 V DC nominal coil, single normally open contact, silver tin oxide contact material, minimum 3 mm contact gap, Faston 250 terminals and rear flange mounting. Confirm the exact 80 V DC variant and its coil specifications before ordering.
