{"product_id":"siemens-3tk2803-0bb4-sicherheitsschaltgeraet","title":"Siemens 3TK2923-0BB4 Safety Relay 24 V DC – used","description":"\u003cdiv class=\"dw-card\"\u003e\n\u003cdiv class=\"dw-badges\"\u003e\u003cspan class=\"dw-badge\"\u003eSiemens\u003c\/span\u003e \u003cspan class=\"dw-badge\"\u003eSafety relay\u003c\/span\u003e \u003cspan class=\"dw-badge\"\u003eUsed\u003c\/span\u003e\u003c\/div\u003e\n\u003ch2 class=\"dw-title\"\u003eSiemens 3TK2923-0BB4 Safety Relay 24 V DC, 2 NO\u003c\/h2\u003e\n\u003cp class=\"dw-sub\"\u003eSafety relay for emergency stop and door monitoring circuits in machine and plant engineering – tested and ready for use.\u003c\/p\u003e\n\u003cdiv class=\"dw-kpi\"\u003e\u003cdiv class=\"dw-kpi-item\"\u003e\u003cdiv class=\"dw-kpi-val\"\u003e3TK2923-0BB4\u003c\/div\u003e\u003cdiv class=\"dw-kpi-lbl\"\u003ePart no.\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"dw-kpi-item\"\u003e\u003cdiv class=\"dw-kpi-val\"\u003e24 V DC\u003c\/div\u003e\u003cdiv class=\"dw-kpi-lbl\"\u003eSupply\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"dw-kpi-item\"\u003e\u003cdiv class=\"dw-kpi-val\"\u003e2 NO\u003c\/div\u003e\u003cdiv class=\"dw-kpi-lbl\"\u003eContacts\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"dw-kpi-item\"\u003e\u003cdiv class=\"dw-kpi-val\"\u003e6 A\u003c\/div\u003e\u003cdiv class=\"dw-kpi-lbl\"\u003eAC-1\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"dw-kpi-item\"\u003e\u003cdiv class=\"dw-kpi-val\"\u003e450 g\u003c\/div\u003e\u003cdiv class=\"dw-kpi-lbl\"\u003eWeight\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"dw-note\"\u003e\u003cstrong\u003eBefore you order:\u003c\/strong\u003e compare the order number 3TK2923-0BB4 and the supply voltage on your device’s label. Send us a photo of your label and we confirm the fit before shipping. For safety-related use, we recommend a check by qualified personnel during installation.\u003c\/div\u003e\n\u003cdiv class=\"dw-section\"\u003e\u003cdiv class=\"dw-section-title\"\u003eTechnical data\u003c\/div\u003e\n\u003ctable class=\"dw-table\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eManufacturer\u003c\/td\u003e\u003ctd\u003eSiemens\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003ePart no.\u003c\/td\u003e\u003ctd\u003e3TK2923-0BB4\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eSupply voltage\u003c\/td\u003e\u003ctd\u003e24 V DC\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eSwitching positions\u003c\/td\u003e\u003ctd\u003e2S (2 safety contacts)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eNO contacts\u003c\/td\u003e\u003ctd\u003e2\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eMax. switching current AC-1\u003c\/td\u003e\u003ctd\u003e6 A (at 24 V, 230 V, 400 V)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eMax. power\u003c\/td\u003e\u003ctd\u003e0.55 kW (230 V), 1.1 kW (400 V)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eAC-15 rating\u003c\/td\u003e\u003ctd\u003e4 A (230 V)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eDC-13 rating\u003c\/td\u003e\u003ctd\u003e0.5 A (24 V)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eAuxiliary contacts\u003c\/td\u003e\u003ctd\u003eB300\/Q300, 6 A\/240 V AC\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eAdjustable time delay\u003c\/td\u003e\u003ctd\u003e1 to 2 seconds (t1–t4)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eFeedback circuit monitoring\u003c\/td\u003e\u003ctd\u003eIntegrated\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eProtection\u003c\/td\u003e\u003ctd\u003eIP20\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eConnection\u003c\/td\u003e\u003ctd\u003eSpring-type terminals\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eMounting\u003c\/td\u003e\u003ctd\u003eCompact DIN rail\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eStandards\u003c\/td\u003e\u003ctd\u003eIEC 60947-1, VDE 0660 T.500\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eApprovals\u003c\/td\u003e\u003ctd\u003eCE, UL (LISTED 165C), CSA\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eWeight\u003c\/td\u003e\u003ctd\u003eapprox. 450 g\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eCondition\u003c\/td\u003e\u003ctd\u003e\u003cspan class=\"dw-status\"\u003eUsed · 2 – Good\u003c\/span\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdetails class=\"dw-acc\"\u003e\u003csummary\u003eProduct description\u003c\/summary\u003e\u003cp class=\"dw-text\"\u003eThe Siemens 3TK2923-0BB4 safety relay is a reliable industrial relay module for safety applications in machine and plant engineering. It is designed for emergency stop and door monitoring systems and, with its 2 safety outputs (2S) and 2 NO contacts, provides safe shutdown in hazardous situations. It operates on 24 V DC and is highly compatible with industrial control circuits.\u003c\/p\u003e\u003cp class=\"dw-text\"\u003eIntegrated feedback circuit and enabling functions plus LED indicators give a clear status display and easy commissioning. The device complies with IEC 60947-1 and VDE 0660 T.500. Black housing with gray front, made in Germany.\u003c\/p\u003e\u003cp class=\"dw-text\"\u003eUsed device removed from a running system. Technically in perfect order, cosmetically with light signs of use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"dw-acc\"\u003e\u003csummary\u003eCompatibility \u0026amp; applications\u003c\/summary\u003e\u003cdiv class=\"dw-tags\"\u003e\u003cspan class=\"dw-tag\"\u003eEmergency stop\u003c\/span\u003e\u003cspan class=\"dw-tag\"\u003eDoor monitoring\u003c\/span\u003e\u003cspan class=\"dw-tag\"\u003eMachine safety\u003c\/span\u003e\u003cspan class=\"dw-tag\"\u003eSiemens 3TK29\u003c\/span\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"dw-acc\"\u003e\u003csummary\u003eScope of delivery\u003c\/summary\u003e\u003cp class=\"dw-text\"\u003e1 × Siemens safety relay 3TK2923-0BB4, as shown in the photos.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"dw-acc\"\u003e\u003csummary\u003eShipping to the USA \u0026amp; worldwide\u003c\/summary\u003e\u003cp class=\"dw-text\"\u003eIn stock in Germany and shipped via FedEx or UPS, usually on the day of your order. Transit to the US typically takes 2–5 business days with full tracking. Import duties and fees follow the US regulations in force on the import date and are settled by the importer. More background on availability and pricing of legacy CNC electronics: \u003ca href=\"\/en\/blogs\/news\/legacy-cnc-electronics-homag-ima-usa-availability-pricing-import\"\u003eread our guide for US customers\u003c\/a\u003e.\u003c\/p\u003e\u003cp class=\"dw-text\"\u003eShipping, duties and warranty at a glance: \u003ca href=\"\/en\/pages\/shipping-to-the-usa\"\u003eShipping to the USA\u003c\/a\u003e.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"dw-footer\"\u003e\u003cp\u003eManufacturer and machine names are used for technical identification only. Information to the best of our knowledge based on the type label and product photos; subject to prior sale.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.dw-card{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;color:#111111;line-height:1.6;max-width:860px}\n.dw-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:0.85rem}\n.dw-badge{display:inline-block;background:#efefed;border:1px solid rgba(0,0,0,0.15);border-radius:5px;padding:4px 12px;font-size:13px;font-weight:600;letter-spacing:0.07em;text-transform:uppercase;color:#444444}\n.dw-title{font-size:26px;font-weight:600;line-height:1.2;margin:0 0 0.3rem;color:#111111}\n.dw-sub{font-size:15px;color:#555555;margin:0 0 1.4rem}\n.dw-kpi{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-bottom:1.75rem}\n.dw-kpi-item{background:#f4f4f2;border:1px solid rgba(0,0,0,0.10);border-radius:8px;padding:0.8rem 1rem}\n.dw-kpi-val{font-size:17px;font-weight:600;line-height:1.2;color:#111111}\n.dw-kpi-lbl{font-size:11px;text-transform:uppercase;letter-spacing:0.07em;color:#666666;margin-top:3px;font-weight:500}\n.dw-section{border-top:1px solid rgba(0,0,0,0.12);padding:1.4rem 0}\n.dw-section-title{font-size:12px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:#444444;margin-bottom:1rem}\n.dw-text{font-size:16px;line-height:1.8;margin:0 0 0.85rem;color:#222222}\n.dw-note{background:#fff8e6;border:1px solid #f0d58a;border-radius:8px;padding:0.9rem 1.1rem;margin-bottom:1.4rem;font-size:15px;line-height:1.7;color:#3d3000}\n.dw-feat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}\n.dw-feat-item{display:flex;align-items:flex-start;gap:10px;border:1px solid rgba(0,0,0,0.10);border-radius:8px;padding:0.8rem 1rem}\n.dw-feat-item span{font-size:15px;line-height:1.5;color:#222222}\n.dw-table{width:100%;border-collapse:collapse;font-size:15px}\n.dw-table tr{border-bottom:1px solid rgba(0,0,0,0.09)}\n.dw-table tr:last-child{border-bottom:none}\n.dw-table td{padding:9px 6px;vertical-align:top}\n.dw-table td:first-child{color:#555555;width:42%}\n.dw-table td:last-child{font-weight:600;color:#111111}\n.dw-tags{display:flex;flex-wrap:wrap;gap:7px}\n.dw-tag{background:#efefed;border:1px solid rgba(0,0,0,0.12);border-radius:20px;padding:5px 14px;font-size:13px;font-weight:500;color:#444444}\n.dw-status{display:inline-block;background:#eaf7f0;color:#0a6640;font-size:13px;font-weight:600;padding:4px 12px;border-radius:5px}\n.dw-acc{border-top:1px solid rgba(0,0,0,0.12)}\n.dw-acc\u003esummary{cursor:pointer;list-style:none;padding:1.1rem 2rem 1.1rem 0;font-size:13px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:#444444;position:relative;user-select:none}\n.dw-acc\u003esummary::-webkit-details-marker{display:none}\n.dw-acc\u003esummary::after{content:\"\";position:absolute;right:6px;top:50%;width:9px;height:9px;border-right:2px solid #666;border-bottom:2px solid #666;transform:translateY(-70%) rotate(45deg);transition:transform .2s}\n.dw-acc[open]\u003esummary::after{transform:translateY(-30%) rotate(225deg)}\n.dw-acc\u003esummary:hover{color:#111}\n.dw-acc\u003e*:not(summary){margin-bottom:1.2rem}\n.dw-chk{flex-shrink:0;width:18px;height:18px;border:1.5px solid #0d7a4e;border-radius:50%;color:#0d7a4e;font-size:11px;font-weight:700;line-height:15px;text-align:center;margin-top:2px}\n.dw-footer{background:#f4f4f2;border-top:1px solid rgba(0,0,0,0.10);padding:1.1rem 0;margin-top:0}\n.dw-footer p{font-size:14px;color:#555555;line-height:1.65;margin:0}\n@media(max-width:600px){.dw-kpi{grid-template-columns:repeat(2,minmax(0,1fr))}.dw-feat{grid-template-columns:1fr}}\n\u003c\/style\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":47903880380755,"sku":"300280304","price":267.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/6964\/2835\/files\/4303537466-Siemens3TK2923-0BB4.jpg?v=1743599097","url":"https:\/\/www.sondermann.org\/en\/products\/siemens-3tk2803-0bb4-sicherheitsschaltgeraet","provider":"Gerhard Sondermann GmbH","version":"1.0","type":"link"}