50.12.9.048.5000 Finder Safety relay 2pole 8A DC 48V
Finder 50.12.9.048.5000 is an 8 A PCB-mounted forcibly guided safety relay featuring a 48 V DC coil, two changeover contacts, gold-plated AgNi contact material and EN 61810-3 Type B contact guidance for safety-related industrial control applications.
Why Choose the Finder 50.12.9.048.5000 Forcibly Guided Safety Relay?
The Finder 50.12.9.048.5000 is a compact 8 A forcibly guided contact relay designed for safety-related switching, industrial automation and electrical control applications. Part of the Finder 50 Series, this PCB-mounted electromechanical relay features a 48 V DC coil, two changeover contacts and mechanically linked contact operation in accordance with EN 61810-3 Type B.
Unlike conventional switching relays, the Finder 50.12 incorporates forcibly guided contacts that provide a defined mechanical relationship between selected normally open and normally closed contacts. This feature supports contact-state monitoring and fault detection in appropriately designed safety-related control circuits. The AgNi + Au gold-plated contacts also provide improved low-level switching capability, making this variant particularly suitable for safety monitoring and control interfaces.
With an 8 A rated contact current, 250 V AC rated contact voltage and 6 kV coil-to-contact impulse insulation, the Finder 50.12.9.048.5000 combines dependable electrical switching with compact PCB integration. Its 29 × 12.4 × 25 mm housing, through-hole solder terminals and wide operating temperature range make it a practical choice for safety equipment manufacturers, industrial automation engineers and electronic control system designers.
Key Advantages
Forcibly guided contacts support contact-state monitoring in safety-related control circuits.
EN 61810-3 Type B contact arrangement for applications requiring mechanically linked contacts.
48 V DC nominal coil for compatible low-voltage DC control systems.
Two changeover contacts (2 CO / DPDT) provide flexible switching and monitoring functions.
8 A rated contact current for appropriately specified electrical loads.
Gold-plated AgNi contacts support dependable low-level signal switching.
6 kV impulse insulation between coil and contacts supports electrical separation.
8 mm coil-to-contact clearance and creepage distance supports reinforced insulation.
700 mW nominal coil consumption supports efficient control circuit design.
PCB through-hole mounting allows direct integration into electronic control assemblies.
RT II flux-proof construction supports PCB soldering processes.
Compact dimensions help conserve space in safety controllers and industrial equipment.
Key Features
Finder 50 Series forcibly guided contact relay.
50.12 relay type with two changeover contacts.
2 CO / DPDT contact configuration.
EN 61810-3 Type B forcibly guided contact arrangement.
48 V DC nominal coil voltage.
8 A rated contact current.
15 A maximum peak contact current.
250 V AC rated contact voltage.
400 V AC maximum switching voltage.
2,000 VA rated AC1 switching capacity.
500 VA rated AC15 switching capacity at 230 V AC.
3.28 kΩ nominal coil resistance.
700 mW nominal DC coil consumption.
Silver-nickel contacts with gold plating (AgNi + Au).
6 kV coil-to-contact impulse withstand voltage.
4,000 V AC coil-to-contact dielectric strength.
PCB through-hole solder terminals with 5 mm pinning.
RT II flux-proof protection.
−40 to +70 °C operating temperature range.
Cadmium-free contact materials.
Reliable Safety Switching for Industrial Automation
The Finder 50.12.9.048.5000 provides mechanically linked contact operation for safety-related electrical control systems. When the 48 V DC coil is energised, the relay contacts change state, allowing connected control circuits to perform switching and monitoring functions. Its EN 61810-3 Type B construction means that specified normally open and normally closed contacts are mechanically linked, supporting detection of certain contact faults through appropriately designed monitoring circuits.
The Finder 50 Series is particularly relevant to safety controller manufacturers, automation engineers and OEM equipment designers requiring compact PCB-mounted relays with defined contact guidance. The AgNi + Au contact material supports low-level switching, while reinforced insulation provides separation between coil and contact circuits. For Type B relays, only the manufacturer-specified normally open and normally closed contact combinations should be treated as forcibly guided pairs. The relay is a component of a safety system rather than a complete safety controller; overall safety performance must be validated at system level.
Typical Applications
Safety-related industrial control circuits.
Emergency-stop monitoring and safety controller assemblies.
Lift and escalator control equipment.
Industrial hoists and crane control systems.
Automated warehouse and carousel systems.
Industrial machinery safety interfaces.
Contact-state monitoring and fault-detection circuits.
Medical and dental equipment control assemblies.
Accessibility lift control equipment.
PCB-based industrial automation and electronic control systems.
OEM safety-related switching and monitoring equipment.
Technical Specifications
Tick the specs you need, then view products that match.
Timing Function
None (instantaneous)
Switching Current (A)
8 A
Load Voltage
400 V AC
Mounting Type
PCB
Terminal Type
PCB / pins
Manufacturer
Finder
Series
50 Series Forcibly Guided Contact Relays
Model
50.12.9.048.5000
Product type
Forcibly guided electromechanical safety relay
Relay type
50.12
Contact guidance classification
EN 61810-3 Type B
Contact configuration
2 CO / DPDT
Number of poles
2
Nominal coil voltage
48 V DC
Coil supply type
DC
Nominal coil resistance
3.28 kΩ
Nominal coil consumption
700 mW
Coil operating voltage range
36–57.6 V DC
Rated contact current
8 A
Maximum peak contact current
15 A
Rated contact voltage
250 V AC
Maximum switching voltage
400 V AC
Rated switching capacity (AC1)
2,000 VA
Rated switching capacity (AC15 at 230 V AC)
500 VA
DC1 breaking capacity at 24 V DC
8 A
Contact material
Silver-nickel with gold plating (AgNi + Au)
Coil-to-contact insulation
Reinforced
Coil-to-contact clearance and creepage
8 mm
Coil-to-contact impulse withstand voltage
6 kV (1.2/50 µs)
Coil-to-contact dielectric strength
4,000 V AC
Dielectric strength between open contacts
1,500 V AC
Operate time
Approximately 10 ms
Release time
Approximately 4 ms
Mechanical endurance
10 million operations
Electrical endurance at rated AC1 load
100,000 operations
Operating ambient temperature
−40 to +70 °C
Protection category
RT II (flux-proof)
Mounting type
PCB through-hole mounting
Terminal type
Solder terminals
Terminal pinning
5 mm
Dimensions (L × W × H)
29 × 12.4 × 25 mm
Contact material composition
Cadmium-free
Frequently Asked Questions
What is the Finder 50.12.9.048.5000 used for?
The Finder 50.12.9.048.5000 is a PCB-mounted relay with forcibly guided contacts, designed for safety-related switching and monitoring in industrial machinery, automation equipment, lift systems and electronic safety controllers.
What coil voltage does the Finder 50.12.9.048.5000 require?
The relay operates with a 48 V DC nominal coil voltage. Its nominal coil resistance is 3.28 kΩ, its coil consumption is approximately 700 mW and its specified operating voltage range is 36–57.6 V DC.
What is the contact rating of the Finder 50.12.9.048.5000?
The relay has two changeover contacts rated at 8 A, with a 250 V AC rated contact voltage and a 2,000 VA AC1 switching capacity. The 15 A maximum peak current is not the continuous rated switching current.
What does EN 61810-3 Type B mean for this Finder relay?
EN 61810-3 Type B identifies a relay with specified mechanically linked normally open and normally closed contacts. For the Finder 50.12, the manufacturer identifies particular NO/NC contact pairs as forcibly guided; not every possible contact combination qualifies. This construction supports contact monitoring in properly designed safety circuits.
How is the Finder 50.12.9.048.5000 installed?
The relay is designed for PCB through-hole mounting using solder terminals with 5 mm pinning. Its dimensions are 29 × 12.4 × 25 mm, and its RT II flux-proof construction supports appropriate PCB soldering processes.
Trusted by Automation Engineers and Equipment Manufacturers Worldwide
Finder 50 Series forcibly guided contact relays provide dependable switching components for industrial automation, machinery safety interfaces and electronic control equipment. The Finder 50.12.9.048.5000 combines a 48 V DC coil, two 8 A changeover contacts, gold-plated contact surfaces and EN 61810-3 Type B contact guidance to support professionally engineered safety-related control systems.
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productManufacturer Lead Time
Standard Manufacturer Lead Time 6-8 Weeks, Call For Express Delivery Options
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
