Why Choose the Finder 41.52.6.012.4016 Bistable PCB Power Relay?
The Finder 41.52.6.012.4016 is a low-profile bistable electromechanical power relay from the Finder 41 Series, featuring a 12 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 41.52.6.012.4016 retains its last switched contact position after the control pulse is removed. Its polarised bistable design uses separate SET and RESET coil connections, allowing the relay to change state without requiring 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 switching systems where reduced control power consumption 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 control connections provide defined switching between relay states.
- Two changeover contacts: DPDT configuration allows two independent electrical circuits to be switched simultaneously.
- 8 A rated contact current: Suitable for appropriately rated industrial and electronic loads.
- 12 V DC coil supply: Integrates with compatible low-voltage electronic control circuits.
- Low-profile construction: A housing height of approximately 15.7 mm supports compact PCB assemblies.
- Silver tin oxide contacts: Cadmium-free AgSnO2 contact material supports electrical switching applications.
- Reduced holding power: No continuous coil energisation is required to maintain the latched position.
- RT II flux-proof protection: Supports suitable PCB soldering processes.
- High electrical separation: Designed with 6 kV impulse withstand capability between coil and contacts.
Key Features
- Finder 41 Series low-profile PCB power relay.
- 41.52 bistable relay configuration.
- 12 V DC nominal coil voltage.
- Two polarised coils for SET and RESET operation.
- 650 mW nominal coil power.
- 220 Ω nominal coil resistance.
- 2 CO / DPDT contact configuration.
- 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.
Energy-Efficient Latching Control for Industrial Automation
The Finder 41.52.6.012.4016 is designed for control systems where the relay must maintain a selected switching state without continuous coil power. Its bistable mechanism allows the contacts to remain in their last commanded position until an appropriate pulse is applied to the opposite coil.
The dual-coil arrangement provides separate control functions:
- 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 is particularly useful in electronic equipment where reduced standby consumption is desirable. Because the relay retains its contact state after the control signal is removed, it can support applications requiring maintained switching positions during periods without coil energisation.
The two changeover contacts allow two separate circuits to be switched together. Each contact set provides normally open and normally closed connections, making the relay suitable for control interfaces, auxiliary equipment switching and status-dependent electrical functions.
The relay's AgSnO2 contacts are suitable for appropriately rated electrical loads, while its RT II flux-proof construction supports compatible PCB assembly processes. For motors, solenoids and loads with high inrush currents, the applicable switching ratings and protective requirements must be evaluated before installation.
Important: This is a bistable relay, not a conventional monostable relay. Removing the coil supply does not automatically return the contacts to a default position. Control circuitry must provide the appropriate SET and RESET commands, and the relay must not be used as a substitute for a safety-rated device without a suitable system-level safety assessment.
Typical Applications
- Industrial automation and machinery control.
- Energy-efficient electrical switching systems.
- 12 V DC electronic control equipment.
- PCB-mounted relay control assemblies.
- Dual-circuit latching applications.
- Building automation and equipment management.
- OEM electronic equipment and machinery.
- Remote switching and maintained-state control.
- Industrial monitoring and auxiliary control circuits.
- Low-profile electronic control modules.
