Phoenix Contact 2961105 | REL-MR-24DC/21 SPDT 6A PCB Power Relay

The Phoenix Contact 2961105 is a high-performance miniature PCB power relay from Phoenix Contact’s reliable REL-MR series, with the official model REL-MR-24DC/21. Designed for universal industrial signal switching and load control, the 2961105 features a standard 24V DC coil, 6A high switching capacity and SPDT (1 Form C) single-pole double-throw contact configuration. As an authentic Phoenix Contact relay component, it delivers ultra-fast response speed, extreme wide-temperature adaptability and reinforced safety isolation, serving as a compact, durable and high-stability switching solution for industrial automation, circuit control and precision electronic equipment.

Complete Technical Specifications

Engineered for PCB embedded installation and long-term cyclic switching operation, the Phoenix Contact 2961105 integrates optimized coil structure and high-quality contact materials, achieving stable electrical performance and outstanding environmental tolerance.

• Part Number：2961105

• Full Model：REL-MR-24DC/21

• Product Type：Miniature PCB Power Relay

• Coil Rated Voltage：24V DC standard industrial control voltage

• Coil Operating Current：7 mA low power consumption at rated voltage

• Coil Resistance：3390 Ω ±10% (@ 20°C)

• Contact Configuration：SPDT (1PDT / 1 Form C) single-pole double-throw

• Rated Switching Current：6A continuous load current capacity

• Max Switching Voltage：250V AC / 250V DC universal voltage range

• Response Time：5 ms ultra-fast pull-in response

• Release Time：2.5 ms rapid reset release

• Contact Material：Silver Tin Oxide (AgSnO) anti-arc durable alloy

• Latching Type：Non-latching automatic reset design

• Isolation Standard：DIN EN 50178 reinforced coil-contact safety isolation

• Operating Temperature Range：-40°C ~ +85°C ultra-wide industrial temperature zone

• Mounting Method：Standard PCB through-hole pin mounting

• Protection Level：RT III wash-proof and dust-proof protection

With low coil power consumption and ultra-fast switching response, the 2961105 Phoenix Contact relay ensures sensitive and accurate signal transmission and load switching, perfectly adapting to high-frequency operation and complex temperature-variable industrial environments.

Core Product Advantages

Different from ordinary low-standard miniature relays, the Phoenix Contact 2961105 focuses on industrial-grade durability and operational precision. Adopting premium AgSnO silver tin oxide contact material, it effectively resists electric arc erosion and contact oxidation, greatly extending service life under frequent switching cycles compared with conventional alloy contacts. The low-power 7mA coil design minimizes long-term static power consumption, realizing energy-saving operation for embedded control circuits.

Featuring millisecond-level ultra-fast switching performance with 5ms pull-in and 2.5ms release speed, the 2961105 ensures timely and accurate signal linkage for automated control systems. Compliant with strict DIN EN 50178 safety isolation standards between coil and contact, it eliminates cross-interference between control circuit and load circuit, improving equipment operational safety. Supporting ultra-wide temperature operation from -40°C to +85°C, the module maintains stable switching performance in high-temperature workshops, low-temperature cold storage and outdoor industrial equipment, with wash-proof protection enhancing on-site environmental adaptability.

Industrial Application & System Matching

The compact Phoenix Contact 2961105 24V DC 6A PCB relay is widely used for signal conversion and medium-load switching in industrial control systems. The 2961105 relay stably supports PLC peripheral signal expansion, sensor signal switching, indicator light control, small solenoid valve drive and auxiliary circuit on-off control.

It is extensively deployed in industrial automation equipment, intelligent instrumentation, building control systems, environmental monitoring devices and custom PCB control modules. The genuine Phoenix Contact 2961105 features compact size, easy PCB integration and stable high-frequency switching capability, making it an ideal universal relay solution for industrial equipment design, batch production and equipment maintenance replacement.