Why Choose the Finder 45.91.7.012.0311 High-Temperature Power Relay?
The Finder 45.91.7.012.0311 is a compact 16 A high-temperature electromechanical power relay designed for reliable electrical switching in industrial automation, heating equipment, commercial appliances and electronic control systems. Part of the Finder 45 Series, this specialist relay combines a sensitive DC coil with a normally open power contact and a versatile PCB-compatible construction.
Featuring a 12 V DC electromagnetic coil and a single-pole normally open (SPST-NO / 1 NO) contact configuration, the relay enables a low-voltage control circuit to operate a separate electrical load. Its Faston 250 contact connections and PCB mounting arrangement make it particularly suitable for equipment requiring secure electrical connections, straightforward load switching and compact integration into control assemblies.
With a 16 A rated contact current, 250 V AC rated contact voltage and an operating ambient temperature range of −40 to +125 °C, the Finder 45.91.7.012.0311 is designed for demanding applications. Its 360 mW sensitive coil, silver nickel contacts, RT III wash-tight enclosure and wide contact opening provide a practical combination of efficient control, robust switching and manufacturing flexibility.
Key Advantages
- 16 A rated contact current for appropriately rated industrial and appliance loads.
- 12 V DC sensitive coil suitable for compatible low-voltage DC control circuits.
- 360 mW nominal coil consumption helps reduce control circuit power requirements.
- Single-pole normally open (SPST-NO) contact provides straightforward energise-to-close switching.
- High-temperature operation up to +125 °C for demanding electrical equipment.
- Contact opening of at least 3 mm for applications requiring a wider contact gap.
- Faston 250 contact connections support convenient and secure load wiring.
- PCB mounting terminals allow integration into electronic control assemblies.
- Silver nickel (AgNi) contacts provide dependable electromechanical switching.
- RT III wash-tight construction supports compatible PCB cleaning processes.
- 6 kV coil-to-contact impulse withstand insulation helps separate control and load circuits.
- Monostable operation automatically returns the contact to its open state when the coil is de-energised.
Key Features
- Finder 45 Series miniature power relay.
- Type 45.91 high-temperature relay configuration.
- 12 V DC nominal sensitive electromagnetic coil.
- 16 A rated contact current.
- 1 NO / SPST-NO contact configuration.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage, subject to specified operating conditions.
- 4,000 VA rated resistive switching capacity under AC1 conditions.
- 360 mW nominal DC coil consumption.
- 400 Ω nominal coil resistance.
- 30 mA nominal coil current.
- Silver nickel (AgNi) contact material.
- At least 3 mm contact opening.
- 30 A maximum peak contact current.
- Faston 250 flat blade contact connections.
- PCB through-hole mounting.
- −40 to +125 °C operating ambient temperature range.
- RT III wash-tight environmental protection.
- 6 kV coil-to-contact impulse withstand voltage.
- Monostable, non-latching electromagnetic operation.
Reliable High-Temperature Switching with a Wide Contact Gap
The Finder 45.91.7.012.0311 operates using a sensitive electromagnetic coil that controls a single normally open power contact. When the 12 V DC coil is energised, the contact closes to complete the external load circuit. Removing coil power allows the contact to return to its normally open position. This makes the relay suitable for straightforward on/off control in industrial equipment, heating systems and electronic switching assemblies.
A distinguishing feature of the Finder 45.91 relay configuration is its contact opening of at least 3 mm, combined with high-temperature capability and Faston 250 load connections. The RT III wash-tight enclosure also provides protection during compatible PCB manufacturing and cleaning processes. These characteristics make the relay particularly useful in OEM equipment where reliable power switching, compact installation and demanding operating environments must be considered together. Correct conductor sizing, PCB layout, coil drive protection and load-specific contact ratings remain essential for safe operation.
Typical Applications
- Industrial automation and machine control systems.
- Burners, boilers and furnace control equipment.
- Industrial ovens and electric heating systems.
- Infrared and microwave oven control assemblies.
- Commercial and domestic appliance control boards.
- Heating, ventilation and air conditioning systems.
- Hot tubs, spas and associated electrical control equipment.
- Electronic power switching and load control modules.
- High-temperature printed circuit board assemblies.
- Electrical control panels and auxiliary relay circuits.
- OEM electronic products and industrial equipment.
- Applications requiring normally open switching with a wide contact gap.
