Description
Detailed parameter table
| Parameter name | Parameter value |
| Product model | 086351-004 |
| Manufacturer | ABB |
| Product category | Auxiliary relay module (industrial control series) |
| Relay type | Electromechanical, latching |
| Coil voltage | 24 VDC |
| Contact configuration | 4 x SPDT (Form C: 1 NO, 1 NC per pole) |
| Contact rating | 5 A @ 250 VAC, 3 A @ 30 VDC |
| Operate time | <10 ms |
| Release time | <5 ms |
| Power consumption | 1.2 W max |
| Operating temperature | -20°C to 60°C |
| Protection rating | IP20 |
| Dimensions | 90mm × 55mm × 75mm |
| Weight | 0.25kg |
| Certifications | IEC 61810-1, UL 508, CE |
| Mounting type | DIN rail (35mm) |
ABB 086351-004
Product introduction
The ABB 086351-004 is a compact, high-reliability auxiliary relay module designed for industrial control systems, serving as a critical interface between control signals and power circuits in automation and electrical distribution applications. As part of ABB’s industrial control series, this latching relay module offers robust switching capabilities, making it ideal for applications requiring secure signal isolation and amplification.
Operating on a 24 VDC coil voltage, the ABB 086351-004 features four SPDT (Single Pole Double Throw) contacts, providing flexible NO (Normally Open) and NC (Normally Closed) configurations. Its latching design ensures that once activated, the relay maintains its state without continuous power, reducing energy consumption and enhancing system stability in scenarios like emergency stop circuits or process interlocks.
Within control systems, the ABB 086351-004 acts as a signal router, isolating low-voltage control signals from higher-voltage power circuits to prevent noise interference and protect sensitive equipment. Its compact size and DIN rail mounting make it easy to integrate into control cabinets, while its durable construction ensures reliable performance in harsh industrial environments—from manufacturing plants to utility substations.
Core advantages and technical highlights
Latching design efficiency: The ABB 086351-004 uses a latching mechanism that retains its switched state (either energized or de-energized) without continuous coil power, consuming only 1.2 W during state changes. This reduces steady-state power draw to near zero, making it ideal for battery-backed systems or energy-critical applications like remote monitoring stations. The latching feature also prevents unintended state changes during brief power fluctuations, enhancing system safety in processes requiring stable operation.
Versatile contact configuration: With four SPDT contacts, the ABB 086351-004 offers exceptional flexibility for routing control signals. Each contact can independently switch NO/NC states, allowing it to handle multiple tasks simultaneously—such as triggering an alarm, activating a valve, and sending a status signal to a PLC. This eliminates the need for multiple single-contact relays, reducing cabinet space usage by up to 40% in complex control setups.
Fast response times: The ABB 086351-004 achieves operate and release times of <10 ms and <5 ms, respectively, ensuring rapid signal propagation in time-sensitive applications. This speed is critical in safety circuits, where delays in activating emergency stops or isolation barriers could increase risk. Even in high-frequency switching scenarios, such as conveyor line control, the relay maintains consistent performance without contact degradation.
Industrial durability: Built to withstand extreme conditions, the ABB 086351-004 operates reliably across a -20°C to 60°C temperature range, resisting condensation and thermal stress in unconditioned environments. Its contacts are rated for 5 A at 250 VAC, handling inductive loads like motor starters without arcing damage, while the coil is protected against voltage spikes up to 2 kV. This ruggedness ensures a long service life, with a mechanical endurance of over 10 million operations.
Typical application scenarios
In manufacturing automation, the ABB 086351-004 integrates with PLCs to control assembly line stations. Its latching contacts maintain the state of conveyor sections or robotic cells during temporary power dips, preventing production disruptions. The four SPDT contacts allow simultaneous control of a station’s motor, status light, interlock relay, and fault alarm, streamlining wiring and reducing component count.
Within electrical distribution panels, the ABB 086351-004 acts as a signal repeater, isolating control signals from high-voltage circuits. It switches auxiliary functions like breaker status indicators, 柜门联锁 (cabinet door interlocks), and remote trip circuits, ensuring low-voltage control systems remain protected from electrical noise generated by transformers or large motors.
In water treatment plants, the ABB 086351-004 manages pump station controls, using its latching feature to maintain pump run/stop states during momentary power losses. Its contacts switch 24 VDC control signals for valve actuators and 230 VAC signals for alarm bells, with the wide temperature range ensuring reliability in outdoor pump houses during winter.
ABB 086351-004
Related model recommendations
ABB 086351-005: A 12 VDC coil variant of the ABB 086351-004, suitable for low-voltage battery systems.
ABB 07KR51 220VDC: An overcurrent relay that pairs with the ABB 086351-004 to switch trip circuits in protection systems.
ABB TB483: A terminal block accessory for the ABB 086351-004, simplifying wiring and providing surge protection.
ABB CM-MPS 24VDC: A regulated power supply that ensures stable coil voltage for the ABB 086351-004 in noisy environments.
ABB 1SFL525001R8000: A DIN rail mounting kit for the ABB 086351-004, enabling secure installation in tight control cabinets.
ABB 086352-001: A non-latching version of the ABB 086351-004 with 6 contacts, ideal for applications requiring momentary switching.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing the ABB 086351-004, ensure the 35mm DIN rail is clean, grounded, and free from vibration. Verify the 24 VDC power supply is fused at 0.5 A and isolated from AC circuits to prevent noise. Required tools include a torque screwdriver (0.5-0.8 Nm), wire strippers, and a multimeter. Use 0.5-1.0 mm² insulated wires for coil and contact connections, with color-coding to distinguish NO/NC circuits.
Maintenance suggestions: Inspect the ABB 086351-004 annually for loose terminals, dust, or contact arcing signs. Clean with compressed air if necessary. Test contact continuity using a multimeter to check for resistance >100 mΩ, which indicates wear. Verify latching functionality by energizing the set/reset coils and confirming state retention. Replace the relay if contacts show pitting or if switching times exceed 15 ms. Store spare units in anti-static packaging at 10-30°C to preserve coil integrity.
Service and guarantee commitment
The ABB 086351-004 comes with a 3-year warranty from purchase, covering manufacturing defects and ensuring contact performance meets specifications. ABB guarantees replacement of faulty units within 48 hours for critical applications, minimizing downtime in control systems.
Technical support includes access to wiring diagrams, contact rating charts, and application notes specific to the ABB 086351-004. Customers can consult ABB’s industrial control specialists for assistance with coil selection or contact sizing. Optional service contracts offer annual testing and contact cleaning, ensuring the relay maintains reliable switching throughout its 10-year design lifespan.
