Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
65.31.9.220.4000 Finder Power relay 1NO 30A DC 220VNO
Finder 65.31.9.220.4000 industrial electromechanical power relay with a 220 V DC nominal coil, 20 A rated contact current, one normally open and one normally closed contact, silver tin oxide contact material, Faston 250 quick-connect terminals and rear flange mounting. Confirm exact 220 V DC coil specifications and availability with the manufacturer.
£17.61
Why Choose the Finder 65.31.9.220.4000 Power Relay?
The Finder 65.31.9.220.4000 is a heavy-duty 20 A industrial electromechanical power relay designed for high-current electrical switching in industrial automation, machinery and control systems. Part of the Finder 65 Series, this relay features a 220 V DC nominal operating coil and a 1 NO + 1 NC contact configuration, providing separate normally open and normally closed switching functions.
With silver tin oxide (AgSnO₂) contacts, a 20 A rated contact current and a 5,000 VA AC1 resistive switching capacity, the Finder 65.31.9.220.4000 is designed for switching compatible industrial electrical loads. Its 250 V AC rated contact voltage makes it suitable for a range of electrical power-control applications, provided the relevant load ratings and installation requirements are observed.
The relay's 220 V DC coil makes it particularly relevant to industrial equipment, electrical power installations and control systems designed around high-voltage DC control supplies. Faston 250 quick-connect terminals and a rear flange mounting arrangement support practical installation in compatible equipment.
Specification note: The contact and construction details below describe the Finder 65.31-4000 configuration. Exact coil resistance, operating voltage limits and availability of the 220 V DC variant should be checked against Finder's current part-specific documentation before ordering or installation.
Key Advantages
- 20 A rated contact current for industrial electrical load switching.
- 220 V DC nominal coil for compatible high-voltage DC control circuits.
- 1 NO + 1 NC contact configuration for complementary switching functions.
- Two independently wired contact circuits for flexible electrical control.
- Silver tin oxide (AgSnO₂) contacts for robust industrial switching.
- 5,000 VA AC1 resistive switching capacity for appropriately rated loads.
- Faston 250 quick-connect terminals for convenient wiring.
- Rear flange mounting for secure installation on compatible panels or chassis.
- Non-latching operation returns the contacts to their normal positions when coil power is removed.
- Industrial-grade construction for machinery and electrical control equipment.
- Separate control and load circuits for electrically operated switching.
- Suitable for industrial automation, power-control equipment and maintenance applications.
Key Features
- Finder 65 Series industrial power relay.
- 20 A rated contact current.
- 220 V DC nominal coil voltage.
- One normally open contact (1 NO).
- One normally closed contact (1 NC).
- SPST-NO + SPST-NC contact arrangement.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage, subject to the manufacturer's specified conditions.
- 5,000 VA AC1 resistive load rating.
- Silver tin oxide (AgSnO₂) contact material.
- Faston 250 quick-connect terminals, measuring 6.3 × 0.8 mm.
- Rear flange mounting arrangement.
- Six electrical terminals for the coil and two separate contact circuits.
- Monostable, non-latching operation.
- Finder 65 Series industrial switching construction.
Reliable 20 A Switching for 220 V DC Control Systems
The Finder 65.31.9.220.4000 operates as an electrically controlled switching device. When the 220 V DC coil is energised within its specified operating range, the normally open contact closes while the normally closed contact opens. When coil power is removed, both contacts return to their original states.
This 1 NO + 1 NC configuration is useful where one circuit needs to be activated while another is disconnected. Typical functions include auxiliary equipment control, industrial signalling and complementary switching arrangements.
Unlike a conventional changeover relay, the Finder 65.31-4000 arrangement provides two independently wired contacts rather than a shared common terminal. This distinction is important when designing wiring arrangements or selecting a replacement relay.
The silver tin oxide contacts are intended for repeated switching of compatible electrical loads. The 20 A rated contact current and 5,000 VA AC1 resistive switching capacity provide a practical switching solution for industrial electrical equipment.
However, the 220 V DC coil rating is not the same as the relay's DC contact breaking capacity. The coil voltage identifies the control supply required to operate the relay; the permissible DC voltage and current across its contacts must be assessed separately using the manufacturer's DC switching characteristics.
Installation and Electrical Compatibility
The Finder 65.31.9.220.4000 is intended for installation in compatible industrial electrical equipment. Its rear flange mounting arrangement allows the relay to be secured to a suitable panel or chassis, while Faston 250 terminals provide connections for the coil and load circuits.
Before installation, verify that the control supply is suitable for the relay's 220 V DC nominal coil. Because high-voltage DC can present significant electrical hazards, installation and maintenance should be undertaken by appropriately qualified personnel using suitable isolation and protection procedures.
Check the connected load's steady-state current, inrush current, voltage and switching characteristics against the relay's published ratings. Inductive loads, motors and high-voltage DC loads may require additional protective components and careful assessment.
Typical Applications
- Industrial automation and electrical control panels.
- Equipment using nominal 220 V DC control supplies.
- Industrial machinery and manufacturing equipment.
- Electrical load switching and auxiliary equipment control.
- Complementary normally open and normally closed switching functions.
- Industrial heating and temperature control equipment.
- Commercial and industrial lighting control.
- Electrical signalling and equipment status circuits.
- Industrial process control systems.
- Electrical power management equipment.
- Power generation and distribution auxiliary control systems.
- Ventilation and HVAC equipment control.
- Conveyor systems and material handling equipment.
- Maintenance and replacement of compatible industrial relays.
- Applications requiring a 220 V DC coil and 20 A 1 NO + 1 NC contact configuration.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Switching Current (A) | 20 A | |
| Load Voltage | 400 V AC | |
| Mounting Type | Panel | |
| Manufacturer | Finder | |
| Series | 65 Series Power Relays | |
| Model | 65.31.9.220.4000 | |
| Product type | Industrial electromechanical power relay | |
| Contact configuration | 1 NO + 1 NC | |
| Contact arrangement | SPST-NO + SPST-NC | |
| Normally open contacts | 1 | |
| Normally closed contacts | 1 | |
| Contact wiring | Two independent single-throw contact circuits | |
| Rated contact current | 20 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC, subject to applicable conditions | |
| Rated resistive load (AC1) | 5,000 VA | |
| Rated inductive load (AC15 at 230 V AC) | 1,000 VA, according to the 65.31-4000 configuration | |
| Single-phase motor rating at 230 V AC | 1.1 kW, according to the series specification | |
| Nominal coil voltage | 220 V DC | |
| Coil designation | 9.220 | |
| Coil type | DC, non-latching | |
| Typical series DC coil consumption | 1.3 W | |
| Indicative nominal coil current | Approximately 5.9 mA, calculated using 1.3 W at 220 V DC | |
| Indicative nominal coil resistance | Approximately 37.2 kΩ, calculated using 1.3 W at 220 V DC | |
| Coil operating voltage range | Verify against the manufacturer's 220 V DC coil specification | |
| Contact material | Silver tin oxide (AgSnO₂) | |
| 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 | 6 | |
| Series operating temperature range | −40 to +75 °C, subject to coil and installation conditions | |
| Series mechanical endurance | Up to 30 million operations for specified DC coil versions | |
| Series electrical endurance | 80,000 operations at the specified rated AC1 load | |
| Environmental protection category | RT I | |
| Relay operation | Electromagnetic, monostable | |
| Application | Industrial automation, machinery control and electrical load switching |
Frequently Asked Questions
What is the Finder 65.31.9.220.4000 used for?
The Finder 65.31.9.220.4000 is an industrial power relay intended for switching compatible electrical loads in automation systems, machinery and electrical control panels. It features a 20 A, 1 NO + 1 NC contact configuration and a 220 V DC nominal coil.
What is the coil voltage of the Finder 65.31.9.220.4000?
The part number identifies a 220 V DC nominal coil. The coil must be operated using a compatible DC control supply within the manufacturer's specified operating voltage limits.
What is the nominal coil current of the 220 V DC version?
Using the typical Finder 65 Series DC coil consumption of 1.3 W, the calculated nominal coil current is approximately 5.9 mA at 220 V DC. This is an indicative calculation, not a confirmed part-specific coil measurement.
What is the operating voltage range of the 220 V DC coil?
The exact operating voltage range should be confirmed against Finder's documentation for the 9.220 coil designation. Coil operating limits can depend on ambient temperature and the specific coil design, so the nominal voltage should not be treated as the complete operating specification.
What is the contact rating of this relay?
The Finder 65.31-4000 configuration provides a 20 A rated contact current at 250 V AC, with a 5,000 VA AC1 resistive switching capacity. The actual permissible switching load depends on the voltage, load type and applicable utilisation category.
How many contacts does the Finder 65.31.9.220.4000 have?
The relay has two separate contacts: one normally open (NO) and one normally closed (NC). When the coil is energised, the normally open contact closes and the normally closed contact opens.
Is the Finder 65.31.9.220.4000 a changeover relay?
No. The relay uses two independently wired single-throw contacts, one normally open and one normally closed. A conventional changeover relay uses a shared common terminal, whereas this configuration provides separate contact circuits.
How is the Finder 65.31.9.220.4000 mounted?
The relay uses a rear flange mounting arrangement for installation on a compatible panel or chassis. Electrical connections are made through Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm.
What contact material is used in the Finder 65.31.9.220.4000?
The .4000 contact configuration uses silver tin oxide (AgSnO₂). This cadmium-free contact material is intended for switching compatible industrial electrical loads.
What is the difference between the Finder 65.31.9.220.4000 and 65.31.9.125.4000?
The principal difference is the nominal coil voltage. The 65.31.9.220.4000 identifies a 220 V DC coil, while the 65.31.9.125.4000 uses a 125 V DC coil. Both share the 65.31-4000 contact configuration, but they should not be substituted without checking the control supply and manufacturer specifications.
Can the Finder 65.31.9.220.4000 switch DC loads?
Yes, the Finder 65.31-4000 contact configuration can switch compatible DC loads within its published breaking-capacity limits. However, a 220 V DC coil does not mean the contacts can switch 20 A at 220 V DC. DC switching capacity depends on voltage and load characteristics and must be checked separately.
Does the Finder 65.31.9.220.4000 require a continuous coil supply?
Yes. The relay is a non-latching electromechanical relay. The coil must remain energised to keep the normally open contact closed and the normally closed contact open. When coil power is removed, both contacts return to their normal states.
Industrial Power Switching from Finder
The Finder 65.31.9.220.4000 combines the industrial switching characteristics of the Finder 65.31-4000 range with a 220 V DC nominal coil, 20 A contact rating, one normally open and one normally closed contact, silver tin oxide contact material, Faston 250 terminals and rear flange mounting. It provides a practical option for compatible industrial control equipment requiring high-voltage DC coil operation. Confirm the exact coil specifications and product availability before ordering.
