Finder 41.52.6.024.4016 – 41 Series Low profile PCB Relays

Why Choose the Finder 41.52.6.024.4016 Bistable PCB Power Relay?

The Finder 41.52.6.024.4016 is a low-profile bistable electromechanical power relay from the Finder 41 Series, featuring a 24 V DC dual-coil latching mechanism, two 8 A changeover contacts (DPDT) and silver tin oxide (AgSnO2) contact material for industrial automation, electronic control equipment and energy-efficient switching applications.

Unlike conventional monostable relays, the Finder 41.52.6.024.4016 maintains its last selected contact position after the control pulse is removed. Its polarised bistable mechanism uses separate SET and RESET coil connections, allowing the relay to switch between two stable positions without continuous coil energisation.

With a compact 15.7 mm low-profile housing, 650 mW nominal coil power and 2000 VA AC1 switching capacity, this relay provides a practical solution for PCB-mounted control systems where reduced standby consumption, dual-circuit switching and maintained contact positions are important.

Key Advantages

• Bistable latching operation: Maintains the selected contact position without continuous coil power.
• Dual-coil SET/RESET control: Separate polarised control connections provide defined switching between relay states.
• Two changeover contacts: DPDT configuration enables simultaneous switching of two independent electrical circuits.
• 8 A rated contact current: Supports appropriately rated industrial and electronic loads.
• 24 V DC coil supply: Compatible with suitably designed industrial DC control circuits.
• 650 mW nominal coil power: Supports efficient pulse-operated switching.
• Silver tin oxide contacts: Cadmium-free AgSnO2 contact material provides a practical switching solution.
• Low-profile construction: The 15.7 mm housing height supports compact PCB assemblies.
• RT II flux-proof protection: Supports compatible PCB soldering processes.
• 6 kV coil-to-contact insulation: Provides electrical separation for appropriately designed control equipment.

Key Features

• Finder 41 Series low-profile PCB power relay.
• 41.52 bistable relay configuration.
• 24 V DC nominal coil voltage.
• Two polarised coils for SET and RESET operation.
• 650 mW nominal coil power.
• 885 Ω nominal coil resistance.
• 2 CO / DPDT contact arrangement.
• 8 A rated contact current.
• 15 A maximum peak contact current.
• 250 V AC rated switching voltage.
• 400 V AC maximum switching voltage.
• 2000 VA rated AC1 switching capacity.
• AgSnO2 contact material.
• RT II flux-proof construction.
• 5 mm contact pin pitch.
• Through-hole PCB mounting.
• Polarised bistable operation with maintained contact positions.

Energy-Efficient 24 V DC Latching Control for Industrial Automation

The Finder 41.52.6.024.4016 provides a practical switching interface for industrial control systems requiring a maintained contact state without continuous coil energisation. Its dual-coil bistable mechanism allows the contacts to remain in their last commanded position until an appropriate pulse is applied to the opposite coil.

The relay uses separate polarised control connections:

• SET operation: Apply the correctly polarised control pulse between A3 (+) and A2 (-).
• RESET operation: Apply the correctly polarised control pulse between A3 (+) and A1 (-).

This arrangement can help reduce standby power consumption in electronic control equipment. Once the relay has switched, continuous coil power is not required to maintain the selected position, making it useful for applications where electrical loads must remain connected or disconnected between control commands.

The two 8 A changeover contacts allow two separate circuits to be controlled simultaneously. Each contact set provides normally open and normally closed connections, supporting auxiliary switching, equipment interfaces and maintained-state control functions.

The 24 V DC coil has a nominal resistance of 885 Ω and a nominal power consumption of 650 mW. Control circuitry must be designed to provide correctly polarised SET and RESET pulses of the duration specified by Finder, rather than treating the relay as a continuously energised monostable device.

The AgSnO2 contacts provide a cadmium-free contact material, while the RT II flux-proof housing supports suitable PCB soldering processes. Motors, solenoids and loads with high inrush currents must be assessed against the relevant switching ratings and protective requirements before installation.

Important: Removing coil power does not automatically return this relay to a default position. Where equipment must disconnect automatically after a power failure, the bistable operating principle must be considered during system design. This relay should not be used as a substitute for a safety-rated switching device without an appropriate safety assessment.

Typical Applications

• Industrial automation and machinery control.
• 24 V DC electronic control systems.
• Energy-efficient electrical switching.
• Dual-circuit latching applications.
• PCB-mounted electronic control assemblies.
• Building automation and equipment management.
• OEM machinery and electronic equipment.
• Remote switching and maintained-state control.
• Industrial monitoring and auxiliary control circuits.
• Low-profile electronic control modules.