{"product_id":"siemens-6fq2421-0ae-programmable-safety-relay-module","title":"Siemens 6FQ2421-0AE Programmable Safety Relay Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens 6FQ2421-0AE is an Iskamatic B VD11 module described as a power supply diode coupler for Siemens Iskamatic safety systems. The part is cross-listed as 6FQ2421-0AE and 6FQ24210AE, confirming its identity within the VD11 Iskamatic family. Distributors and marketplaces show the device available as a used or surplus item under this part number, with listings from Paebra, Maaslos-Guenstig, and eBay platforms. Descriptions consistently label it as a VD11 Iskamatic power supply diode coupler, aligning with Siemens’ older Iskamatic B safety equipment used for diode‑coupled signaling in safety circuits. \u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New Surplus No Box","offer_id":46268603793642,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-018.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-6fq2421-0ae-programmable-safety-relay-module","provider":"GTG Hardware","version":"1.0","type":"link"}