{"product_id":"hima-vr-h4116-24vdc-hazardous-zone-2-safety-relay-module","title":"HIMA VR-H4116 24Vdc Hazardous Zone 2 Safety Relay Module","description":"\u003ch2\u003eHIMA VR-H4116 Safety Relay Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHIMA VR-H4116\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eVR-H4116\u003c\/strong\u003e Safety Relay Module, operates as a dedicated hardware component for fail-safe signal switching and electrical isolation within Safety Instrumented System (SIS) platforms. Operating on a 24 VDC nominal coil voltage, the module drives 1 potential-free change-over contact to interface safety logic outputs directly with field final control elements. Integrated galvanic isolation decouples field-side electrical transients from sensitive logic circuits, maintaining signal purity and preventing cross-channel noise propagation across hazardous Zone 2 field installations.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eVR-H4116\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHIMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.11 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e200 x 100 x 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Industrial Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLow Current Draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003e1 Potential-Free Change-Over Contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic Isolation (Input to Output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eTerminal Housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage Category\u003c\/td\u003e\n\u003ctd\u003eEN 50178 Overvoltage Class III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eCE, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSIL3 Certification \u0026amp; Fail-Safe State Execution\u003c\/h3\u003e\n\u003cp\u003eEngineered to fulfill stringent functional safety standards, the module incorporates dedicated physical boundaries to enforce deterministic fail-safe state execution during signal anomalies. Complete galvanic isolation suppresses common-mode transients, preventing high-voltage ground potential shifts from damaging up-stream safety controller outputs. In the event of control loop power loss or signal line interruption, internal mechanical bias springs force the change-over contact directly into its de-energized fail-safe position, verifying immediate open-circuit condition for critical emergency trip functions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What mechanisms prevent electrical transients from passing through the relay to the controller? A: High-grade galvanic isolation establishes an electrical barrier between the input drive coil and the output change-over contact, blocking surges up to EN 50178 Overvoltage Class III ratings.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 24 VDC coil drive circuit accept direct power from safety output modules? A: Yes, the module features low internal current consumption designed specifically to match the direct drive current limits of digital safety output channels.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the terminal housing directly into approved enclosure frames mounted within Zone 2 hazardous field areas. Strip field wiring insulation back to standard manufacturer dimensions, securing all conductor leads into the terminal block screw clamps to prevent loose-wire contact degradation. Route 24 VDC logic control wiring in dedicated cable trays separated from high-voltage field switching conductors to prevent inductive coupling. Connect the enclosure chassis to the main copper earth grounding bus bar via low-impedance grounding straps to preserve galvanic isolation boundaries and maintain EN 50178 compliance.\u003c\/p\u003e","brand":"HIMA","offers":[{"title":"Default Title","offer_id":43823297855587,"sku":"VR-H4116 24Vdc","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/132_fe3b19a0-e43c-4b1b-b420-c3b4d38fa5dc.jpg?v=1762498600","url":"https:\/\/www.autocontrolglobal.com\/products\/hima-vr-h4116-24vdc-hazardous-zone-2-safety-relay-module","provider":"AutoControl Global","version":"1.0","type":"link"}