68.25.9.012.4300 Finder 4 NO Contacts and 1 NC Contacts 12V DC Power Relay

Why Choose the Finder 68.25.9.012.4300 Power Relay?

The Finder 68.25.9.012.4300 is a heavy-duty PCB-mount power relay designed for switching high electrical loads in industrial power electronics and control systems. It features a flexible 4 normally open contacts and 1 normally closed contact (4 NO + 1 NC) configuration, enabling simultaneous control of multiple circuits alongside auxiliary monitoring or safety interlock signalling.

Powered by a 12 V DC control coil, this relay is capable of switching up to 40 A per pole, making it suitable for demanding applications such as EV charging equipment, renewable energy systems, UPS units, industrial heating systems and high-power automation equipment. The relay uses durable AgSnO₂ contact material, providing excellent resistance to inrush currents and ensuring long electrical service life.

Part of the Finder Series 68 high-power relay range, the 68.25 model is engineered for printed circuit board installation and delivers reliable switching performance in compact power electronics designs.

Key Features

• Contact configuration: 4 NO + 1 NC for flexible switching and auxiliary signalling.
• High switching capacity up to 40 A per pole.
• 12 V DC coil voltage suitable for industrial control electronics.
• PCB mounting design for integration into power control boards.
• AgSnO₂ contact material designed for high inrush current loads.
• Maximum switching voltage up to 400 V AC.
• Peak current capability up to 300 A (1 ms).
• Contact gap ≥ 4 mm ensuring strong electrical isolation.
• Flux-proof enclosure (RT II) suitable for automated PCB assembly.
• Reinforced insulation between coil and contacts.

Technical Specifications

• Manufacturer: Finder
• Series: 68 Series
• Model: 68.25.9.012.4300
• Product type: High-power PCB relay
• Contact configuration: 4 NO + 1 NC
• Main contact rating: 40 A per pole
• Auxiliary NC contact rating: approx. 3 A
• Rated switching voltage: 250 V AC
• Maximum switching voltage: 400 V AC
• Maximum peak current: 300 A (1 ms)
• Contact material: AgSnO₂ (silver tin oxide)
• Coil voltage: 12 V DC
• Rated coil power: approx. 2.9 W
• Operate / release time: approx. 25 ms / 3 ms
• Mechanical life: 1 × 10⁶ operations
• Electrical life: approx. 30 × 10³ operations at rated load
• Mounting: Printed circuit board (PCB)
• Protection category: RT II (flux-proof)
• Operating temperature: −40 °C to +70 °C

Typical Applications

• Electric vehicle charging equipment.
• Renewable energy and photovoltaic power systems.
• UPS systems and power distribution modules.
• Industrial heating and high-power load control.
• Industrial automation and power electronics equipment.

Trusted by Power Electronics Engineers

Finder Series 68 relays are widely used by equipment manufacturers and industrial engineers for dependable switching of high electrical loads in modern power electronics and automation systems.