{"product_id":"mercury-6-x-32mm-t500ma-slow-blow-fuses-250v","title":"Mercury 6 x 32mm T500mA Slow Blow Fuses - 250V","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury T500mA is a 6 x 32mm glass tube slow blow fuse rated to 250V, designed to protect low-current circuits while tolerating brief inrush current spikes that occur when devices power on. The time-delay element inside the glass tube allows short-duration surges to pass without blowing the fuse, then interrupts the circuit if sustained overcurrent continues beyond the 500mA rating.\u003c\/p\u003e\n\u003cp\u003eSlow blow fuses are commonly used in power supplies, audio equipment, lighting control circuits, battery chargers and any application where motors, transformers or capacitors create momentary inrush current during startup. The 6 x 32mm format fits standard ceramic or inline fuse holders used in mains-powered equipment and low-voltage distribution boards. The 250V rating covers both UK 230V mains and lower-voltage DC applications up to 250V.\u003c\/p\u003e\n\u003cp\u003eThe glass tube construction allows visual inspection of the internal wire element — a blown fuse shows a visible break in the wire or discolouration of the glass. Each fuse carries the T500mA rating printed on the metal end cap for identification during replacement. These fuses meet IEC standards for time-delay fuses and are sold in packs suitable for workshop stock or field service use.\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does 'slow blow' mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA slow blow fuse has a time-delay element that allows brief current surges (such as motor startup or capacitor charging) to pass without blowing. If the overcurrent persists beyond the rated 500mA, the fuse then interrupts the circuit. This contrasts with fast-acting fuses that blow immediately when current exceeds the rating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between T500mA and F500mA?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eT-rated fuses are time-delay (slow blow). F-rated fuses are fast-acting and blow immediately when the rated current is exceeded. Use T-rated fuses in circuits with inrush current; use F-rated fuses in circuits requiring immediate protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat equipment uses 6 x 32mm fuses?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis format is common in audio amplifiers, power supplies, battery chargers, lighting control gear, and low-voltage distribution boards. Check your equipment's fuse holder or manual to confirm the required size and rating before replacing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these be used in DC circuits?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 250V rating applies to both AC mains (230V) and DC circuits up to 250V. The fuse interrupts current in the same way regardless of whether the voltage is AC or DC.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313487175947,"sku":"787.134UK","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/787134UK_LB1_5d01d311-6cff-449e-8801-9b262db0a022.jpg?v=1715194172","url":"https:\/\/niori.co.uk\/products\/mercury-6-x-32mm-t500ma-slow-blow-fuses-250v","provider":"Niori","version":"1.0","type":"link"}