New Original Finder 90.03.SMA DIN Rail Relay Socket
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New Original Finder 90.03.SMA DIN Rail Relay Socket
1. Product Overview
Finder part‑number 90.03.SMA is an original Italy‑made relay socket designed to match Finder 60.13 series 11‑pin plug‑in power relays. It serves as the connecting base between the relay and control‑circuit wiring. This socket supports DIN‑rail mounting and screw‑terminal wiring, widely applied inside control cabinets, automated assembly lines, packaging machines, pump‑control panels and workshop electrical systems. The housing is built with high‑strength flame‑retardant PA66 plastic conforming to UL94‑V0 grade. Its metal contact clips are tin‑plated brass to achieve stable electrical conductivity and anti‑oxidation performance. This socket complies with CE, UL and RoHS requirements for global industrial‑control applications. The SMA suffix stands for screw‑clamp terminal structure and built‑in metal retaining clip to lock relays firmly against vibration.
2. Main Functions
- Reliable electrical connection: Tin‑plated brass internal contact pieces closely engage with relay pins to transmit control‑circuit signals and load‑current steadily. Screw terminals accept stranded wires or solid‑core wires for field wiring.
- Firm fixing structure: Integrated metal retention clip locks the plugged‑in relay tightly. It prevents relay loosening caused by equipment vibration during long‑time running.
- Standard DIN‑rail installation: The rear buckle fits 35 mm standard DIN rail. Users can also install it on flat panels by reserved mounting holes.
- Convenient maintenance design: The relay can be pulled out directly without disconnecting field‑wires when replacement or inspection is needed, which greatly shortens equipment‑downtime.
- Compatibility for auxiliary modules: It reserves installation space for Finder‑86‑series timer modules and surge‑suppression modules mounted on the top of relays.
- Clear terminal marking: Terminal numbers are printed on the socket housing for correct wiring and troubleshooting during commissioning.
3. Technical Characteristics
- Electrical parameters: Rated operational current 10 A; rated voltage up to 250 V AC; dielectric‑withstand voltage 4000 V between adjacent terminals.
- Terminal specifications: Screw‑clamp terminals accept wire cross‑section from 0.5 mm² to 2.5 mm²; tightening torque ranges from 0.6 N·m to 0.8 N·m.
- Material properties: Housing material is PA66 flame‑retardant thermoplastic; contact clip material is tin‑plated brass; spring parts are stainless‑steel.
- Environmental performance: Operating ambient temperature from −40 °C to +70 °C; protection class IP20 after full assembly. Vibration‑resistance satisfies EN‑60068‑2‑27 industrial standard.
- Mechanical lifespan: More than 1000 times of relay plug‑in and pull‑out cycles without obvious loosening of internal spring clips.
- Safety certifications: Approved by CE, UL and VDE; fully RoHS‑compliant without hazardous substances.
- Matched relay: Exclusively for Finder 60.13 series 11‑pin round‑pin type relays.
4. Dimensions and Weight
| Item | Parameter Value |
|---|---|
| Overall width | 32.5 mm |
| Overall depth | 61.0 mm |
| Overall height | 73.5 mm |
| Mounting type | 35‑mm standard DIN‑rail mounting or panel mounting |
| Terminal form | Screw‑clamp type wiring terminals |
| Net weight per piece | 92 g |
| Relay pin compatibility | 11‑pin circular plug‑in type |
| Retaining component | Built‑in stainless‑steel lock clip |
5. Ten Finder alternative products with similar‑function relay sockets
All items are genuine Finder DIN‑rail‑mount relay sockets with official part‑numbers for different‑series relays and various wiring‑methods:
- 90.03.PA: 11‑pin DIN‑rail socket with plastic retaining clip instead of metal clip; screw‑terminal design matching Finder‑60.13 relays with 10‑A rated‑current.
- 90.03.SMA‑E: Enhanced version of 90.03.SMA, with extended‑temperature design for −50 °C low‑temperature workshop environments.
- 90.02.SMA: 8‑pin DIN‑rail socket for Finder‑60.12 series DPDT relays; tin‑plated brass contacts and metal locking clip.
- 90.03.FMA: 11‑pin socket with spring‑push‑in terminals instead of screw terminals for fast wiring without screwdrivers.
- 90.03.SMA‑1: High‑current variant with maximum allowable current up to 16 A for slightly‑heavy‑load conditions.
- 90.73.SMA: Finder‑90.73 series socket with separation barriers between each terminal for reinforced insulation performance.
- 94.03: DIN‑rail socket for Finder‑55‑series compact relays, screw‑clamp terminals and small‑size outline.
- 90.03.SMA‑S: Socket with built‑in varistor surge‑protection component to reduce voltage spikes for DC‑coil relays.
- 90.03.N: Panel‑mount‑only version without DIN‑rail buckle for fixed‑installation inside sealed control boxes.
- 97.03.SMA: Heavy‑duty socket version with nickel‑plated contacts for humid and slightly corrosive factory environments.
6. Application Notes
- Do not exceed the maximum rated‑current of 10 A, otherwise terminal over‑heating will appear and cause potential fire hazards.
- Fasten terminal screws with recommended torque; overly loose wires lead to heating while excessive torque may damage internal thread.
- Only match original Finder‑60.13‑series relays; mismatched relay pins will result in poor contact.
- Keep this socket away from cutting fluid, oil mist and corrosive gas. Select fully enclosed sockets if working environment is harsh.
- Confirm terminal‑number marking before wiring to avoid wrong‑connection that burns out relays or control‑system components.
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
Where is your company located?
We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
What types of electronic components does your company mainly sell?
We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
What are the prices of your products?
Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.
How to purchase your electronic components?
You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.
How do you guarantee the quality of your products?
We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.
If I am not satisfied with the electronic components I purchased, can I return them?
We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.
Can your company provide technical support and solutions?
We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.
How to contact your customer service?
You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.
Does your company often organize promotional activities?
In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.
