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HIMA H4116 Isolation Relay
HIMA H4116
HIMA H4116 is a safety isolation relay in the HIMA Safety Relay series, specifically designed to achieve functional safety (SIL 3) in compliance with the IEC 61508/IEC 61511 standards. It features a modular structure and can be directly mounted on the DIN rail of 19-inch cabinets, making it suitable for industrial sites that require high reliability and redundant safety control.
Main Technical Specifications
| Specification Item | Details |
|---|---|
| Rated Operating Voltage | 24 V DC |
| Rated Current | 0.5 A |
| Contact Configuration | Double-Pole Double-Throw (DPDT) with Normally Open (NO) / Normally Closed (NC) |
| Response Time | ≤ 10 ms (closing), ≤ 5 ms (opening) |
| Safety Level | Compliant with IEC 61508, certified for SIL 3 |
| Protection Level | IP20 (suitable for indoor cabinets) |
| Mounting Method | DIN rail, width of 2 TE (approximately 44 mm) |
| Operating Temperature Range | -25 °C ~ +70 °C |
Product Features
- High Reliability: Adopts a fanless heat dissipation design and uses high-reliability internal materials, with a service life of over 10⁶ operations.
- Modular Structure: Features a compact DIN rail package, enabling direct replacement or expansion in existing cabinets.
- Comprehensive Safety Functions: Equipped with internal self-test, fault detection, and dual-channel redundancy, meeting the requirements of SIL 3.
- Multiple Communication Interfaces: Supports Modbus RTU, RS-232/RS-485, Ethernet, etc., facilitating integration with DCS/PLC systems.
- Easy Maintenance: Fanless and low-noise design; on-site replacement can be completed simply by removing it from the rail.
Structure and Composition
- Housing: A metal protective case that provides mechanical strength and electromagnetic shielding.
- Coil Area: Dual coils for safety redundancy; the coil power supply is rectified and stabilized internally.
- Contact Area: NO/NC contacts made of silver alloy, ensuring low contact resistance and long service life.
- Terminal Block: Standard 24 V DC terminal blocks with clear markings for easy on-site wiring.
- Diagnostic Circuit: Internal self-test circuits that continuously monitor the status of coils, contacts, and power supply.
Typical Application Fields
- Petrochemical & Chemical Industry: Hazardous valves, emergency shutdown circuits.
- Power & Energy Industry: Safety interlocks for generator sets and substations.
- Pharmaceutical & Food Industry: Safety monitoring of critical processes.
- Iron & Steel, Cement, Automotive Manufacturing: Safety interlocks for large-scale production lines.
- Other High-Risk Industries: Automated systems requiring functional safety, such as aerospace and rail transit.
Key Points for Installation and Maintenance
Installation
- Fix the H4116 on the DIN rail in accordance with the product manual, ensuring the rail is level and securely fastened.
- Follow the markings during wiring; use copper core wires that meet the rated current to avoid voltage drop caused by excessively long or thin wires.
- Check if the power supply voltage is within the rated range; if necessary, install filter capacitors to suppress transient interference.
Commissioning
- After power-on, use the diagnostic software provided by HIMA or an on-site handheld tester to check the self-test status and confirm that all safety functions are normal.
- Conduct functional tests (closing/opening) on the contacts to verify that the response time meets the design requirements.
Daily Maintenance
- Regularly inspect the housing for dust, corrosion, or signs of mechanical impact.
- Perform a functional self-test every 6 months and record the results for traceability.
- If abnormal noise, overheating, or self-test alarms are detected, shut down the system immediately for replacement or contact the manufacturer’s after-sales service.
Replacement
- Ensure the power supply is cut off before replacement and use anti-static gloves during operation.
- Keep the rail intact when removing the old relay to avoid damaging adjacent modules.
- Conduct a complete functional test again after installing the new relay to ensure the safety integrity of the system.
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Core Advantages & Service Highlights
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Comprehensive Inventory for Diverse NeedsWe maintain an extensive selection of industrial automation parts—covering PLCs, DCS systems, HMIs, and power supplies—to fit the unique requirements of industries ranging from manufacturing to energy, ensuring no operational demand goes unmet.
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Global Reach with Localized SupportBoasting a worldwide client network, we deliver reliable cross-border shipping paired with region-specific service adjustments, making it easy for global customers to access products and resolve issues without geographic barriers.
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Cost-Effective Solutions Without Quality CompromiseOur strategic sourcing model lets us secure high-grade products at competitive rates, translating to budget-friendly solutions for businesses. This way, you cut operational costs without sacrificing performance or durability.
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Specialized Sourcing for Hard-to-Find ComponentsWe excel at locating obsolete or discontinued industrial parts—items that are often unavailable through standard suppliers. This specialization makes us the go-to partner for keeping legacy systems running or replacing rare components.
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Rapid Delivery with Flexible ResponsivenessWe prioritize fast shipping to minimize downtime for businesses facing urgent part replacements or upgrades. Plus, our flexible delivery options (including expedited services) let you tailor timelines to your operational schedule.
Q: What sets your expertise apart?
A: Our focus lies in supplying industrial automation components—specifically spare parts for PLCs, DCS systems, HMIs, power supplies, and other critical industrial equipment—with a emphasis on matching parts to your exact operational needs.
Q: Can you source obsolete or hard-to-locate parts?
A: Absolutely. Xingruijia is recognized for its ability to track down discontinued or rare components that are hard to find through conventional channels, helping you avoid costly system overhauls when legacy parts are needed.
Q: Do you provide international shipping services?
A: Yes, we offer global shipping solutions designed to ensure customers across the world can easily obtain our products, with support for customs clearance and delivery tracking to keep you informed every step of the way.
Q: What measures do you take to guarantee product quality?
A: Every product undergoes rigorous quality assurance checks, from material verification to performance testing. This ensures they comply with global industrial standards and perform consistently in harsh or high-demand working environments.
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