We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up

FURNAS

FURNAS is a brand of industrial controls and electrical components, historically associated with the manufacture of motor starters, contactors, relays, and related control devices. The brand has been a part of the Siemens portfolio for decades, and its product lines are widely used in HVACR (heating, ventilation, air conditioning, and refrigeration) systems, as well as in general industrial motor control applications. FURNAS components are designed to meet standard industrial specifications for voltage, current, and environmental resistance, with many products carrying IP ratings suitable for indoor and protected outdoor installations. Typical product families include magnetic contactors, overload relays, control relays, switching relays, and replacement coils, all of which are engineered for compatibility with common control voltages (e.g., 24 VAC, 120 VAC, 240 VAC) and current ratings ranging from fractional amperes to several hundred amperes. The brand's focus on modularity and interchangeability allows maintenance teams to replace individual components—such as coils or relay modules—without replacing entire assemblies, reducing downtime and inventory costs. 3G Electric supplies a range of FURNAS replacement parts, including coils, switching relays, and contactor kits, sourced to match original manufacturer part numbers. These components are typically used in HVACR equipment such as rooftop units, air handlers, condensing units, and refrigeration systems, as well as in industrial machinery requiring motor starting and control. The parts are available as direct replacements for existing FURNAS installations, with specifications that include coil voltage, contact configuration, and mounting dimensions. 3G Electric's logistics support ensures that these parts can be shipped globally, with inventory maintained to cover common failure modes in field equipment. For procurement specialists and maintenance managers, FURNAS parts from 3G Electric offer a reliable path to restoring equipment function without redesigning control circuits. The brand's long-standing presence in the market means that many installed systems still rely on FURNAS components, making availability of replacement parts critical for ongoing operations. 3G Electric does not modify or re-engineer these parts; they are supplied as manufactured, with traceability to the original part numbers. This approach minimizes compatibility risks and simplifies the ordering process for engineers who need to match existing hardware. The product range covered includes coils for contactors and starters, switching relays for control logic, and auxiliary contact blocks for status feedback. Each part is listed with its manufacturer part number, allowing direct cross-referencing with existing equipment documentation. For applications where exact replacement is required, the FURNAS line from 3G Electric provides a straightforward solution without the need for circuit redesign or adapter kits.

Genuine
OEM Parts
Expert
Tech Support
1 Day
Quote Response
Worldwide
Origin
Worldwide Shipping
Air & sea freight
Datasheets on Request
Technical specs & drawings
1-Day Quote Response
Singapore-based team
Show
Page 1 of 1

About FURNAS

FURNAS is a brand of industrial controls and electrical components, historically associated with the manufacture of motor starters, contactors, relays, and related control devices. The brand has been a part of the Siemens portfolio for decades, and its product lines are widely used in HVACR (heating, ventilation, air conditioning, and refrigeration) systems, as well as in general industrial motor control applications. FURNAS components are designed to meet standard industrial specifications for voltage, current, and environmental resistance, with many products carrying IP ratings suitable for indoor and protected outdoor installations. Typical product families include magnetic contactors, overload relays, control relays, switching relays, and replacement coils, all of which are engineered for compatibility with common control voltages (e.g., 24 VAC, 120 VAC, 240 VAC) and current ratings ranging from fractional amperes to several hundred amperes. The brand's focus on modularity and interchangeability allows maintenance teams to replace individual components—such as coils or relay modules—without replacing entire assemblies, reducing downtime and inventory costs. 3G Electric supplies a range of FURNAS replacement parts, including coils, switching relays, and contactor kits, sourced to match original manufacturer part numbers. These components are typically used in HVACR equipment such as rooftop units, air handlers, condensing units, and refrigeration systems, as well as in industrial machinery requiring motor starting and control. The parts are available as direct replacements for existing FURNAS installations, with specifications that include coil voltage, contact configuration, and mounting dimensions. 3G Electric's logistics support ensures that these parts can be shipped globally, with inventory maintained to cover common failure modes in field equipment. For procurement specialists and maintenance managers, FURNAS parts from 3G Electric offer a reliable path to restoring equipment function without redesigning control circuits. The brand's long-standing presence in the market means that many installed systems still rely on FURNAS components, making availability of replacement parts critical for ongoing operations. 3G Electric does not modify or re-engineer these parts; they are supplied as manufactured, with traceability to the original part numbers. This approach minimizes compatibility risks and simplifies the ordering process for engineers who need to match existing hardware. The product range covered includes coils for contactors and starters, switching relays for control logic, and auxiliary contact blocks for status feedback. Each part is listed with its manufacturer part number, allowing direct cross-referencing with existing equipment documentation. For applications where exact replacement is required, the FURNAS line from 3G Electric provides a straightforward solution without the need for circuit redesign or adapter kits.

Common Applications

  • HVACR rooftop unit control — FURNAS switching relay 3UB81234CW2 for fan and compressor logic
  • Refrigeration system contactor replacement — FURNAS coil 75D73070A in condensing unit starter
  • Industrial motor control panel — FURNAS switching relay 3RB3026-1QB0 for interlock circuits
  • Air handler unit maintenance — FURNAS coil replacement for contactor in 24 VAC control circuit
  • Commercial refrigeration defrost control — FURNAS relay for timed defrost cycle switching

Frequently asked questions

Common questions about FURNAS from 3G Electric.

What types of FURNAS coils does 3G Electric supply?

3G Electric supplies FURNAS replacement coils, such as the 75D73070A, which are used in contactors and motor starters. These coils are designed to operate at specific control voltages (e.g., 24 VAC, 120 VAC, 240 VAC) and are rated for continuous duty. They are direct replacements for original FURNAS equipment, with the same mounting and electrical characteristics. The coils are typically used in HVACR systems and industrial motor control panels.

Are FURNAS switching relays from 3G Electric compatible with Siemens control systems?

FURNAS switching relays, such as the 3UB81234CW2 and 3RB3026-1QB0, are designed to be compatible with standard industrial control circuits, including those used in Siemens systems. These relays have coil voltages and contact ratings that match common control voltages (e.g., 24 VDC, 120 VAC). They can be used as direct replacements in existing FURNAS installations or as upgrades in systems that accept DIN-rail or panel-mount relays. Always verify the coil voltage and contact configuration against your system specifications.

How do I identify the correct FURNAS replacement part for my HVACR equipment?

To identify the correct FURNAS replacement part, locate the manufacturer part number on the existing component. For example, a coil may have a part number like 75D73070A, while a switching relay may be marked 3UB81234CW2. Cross-reference this number with the listings on 3G Electric's catalog. If the part number is not visible, check the equipment's service manual or contact 3G Electric with the equipment model and the component's voltage and current ratings. Using the exact part number ensures compatibility with mounting and electrical connections.

What is the typical lead time for FURNAS parts from 3G Electric?

Lead times for FURNAS parts from 3G Electric vary based on inventory levels and shipping destination. Commonly stocked items, such as the 75D73070A coil and 3UB81234CW2 relay, are typically available for immediate shipment. For less common part numbers, lead times may extend to several weeks. 3G Electric provides logistics support to coordinate global shipping, and customers can request a quote for specific part numbers to confirm availability and estimated delivery dates.

Can FURNAS switching relays be used in three-phase motor control applications?

Yes, FURNAS switching relays can be used in three-phase motor control applications, provided the relay's contact ratings (voltage and current) match the motor's control circuit requirements. For example, the 3RB3026-1QB0 switching relay is rated for typical control voltages and currents found in three-phase systems. However, these relays are typically used for control logic (e.g., start/stop, interlocking) rather than direct motor power switching. For motor power switching, use FURNAS contactors or starters with appropriately sized coils.

Does 3G Electric supply FURNAS products?

Yes — 3G Electric (S) Pte. Ltd. supplies FURNAS products. We stock the FURNAS catalog and supply genuine factory-original products with full manufacturer warranty and technical support.