Weidmüller Switch Disconnectors

weidmuller switch disconnectors overview and range map

This category covers door- and rail-mounted switches that isolate feeders and subcircuits for safe service. Weidmüller structures the offer by current frame (20–40 A compact, 63–125 A mid, 160–250 A heavy duty), pole count (3P and 3P+N), operating shaft (direct on device or door-coupled), and enclosure/IP options for wall boxes. Typical buyers are panel shops, OEMs and facility MRO teams who want predictable footprints, door interlocks that actually bite, and accessory sets that arrive in one pick.

weidmuller isolator switches families and ratings

Expect compact 45 mm bodies up to ~40 A for control cabinets, 63–125 A devices in 55–90 mm widths for machine mains, and 160–250 A units for MCC incomers. Door-coupled kits include red/yellow handles with padlock hasps; direct-mount levers suit small panels. Neutral and early-break/late-make auxiliary blocks snap to the side; shaft lengths are cut-to-fit. Most distributors stock 3P frames with add-on N, plus handle/shaft kits and three sizes of door gaskets. Fast movers: 25 A and 63 A frames for machine skids.

weidmuller load break switches applications and mounting

Use as local isolators next to motors, VFDs and heaters, or as incoming switches on compact panels. Bases clip to TS35 rails or bolt through the back-plate; door-coupled versions maintain interlock (can’t open under ON) and padlock in OFF for LOTO. If your site standard calls the main handle out on the door, pick the matching shaft/handle pack and keep one spare per cabinet size. For outdoor skids, specify gasketed covers or pre-boxed assemblies to keep IP65.

weidmuller modular disconnect units for faster builds

Pre-engineered kits bundle switch, handle, shaft, door seal and auxiliary contacts under one code—ideal for repeat layouts. Add-ons like 4th pole (switching neutral), auxiliary 1NO/1NC status, and fused bases for local protection share the same footprint. Interlocks and bridging bars keep reversing pairs tidy; common bus kits feed multiple switches from one copper set, cutting ring-lug work.

Key features and ordering specs

• Current frames: ~20–40 A, 63–125 A, 160–250 A; thermal limits sized for continuous industrial duty.
• Poles and neutral: 3P standard; add N or use 3P+N for TN-S systems. Early-break N available where code demands.
• Operation: direct lever or door-coupled handle; padlockable OFF, defeatable interlock available for service.
• Accessories: shafts (200–400 mm cuttable), red/yellow or black/grey handles, auxiliary contacts, door gaskets, 4th pole kits, terminal shrouds.
• Mounting: TS35 DIN-rail clips and slotted screw feet; consistent hole patterns simplify swaps.
• Packaging: switches in singles; handles/shafts/gaskets in small bags (5s/10s) for kitting.

Applications and compatibility

These sit at panel incomers, machine LCPs, pump sets and heater banks. Pair with Weidmüller manual motor starters, MCBs/gG fuse switch disconnectors, and PE/earth terminals for short bonding paths. Upstream of drives, coordinate with line reactors and EMC glands so shield continuity isn’t broken near the isolator. When the spec calls them weidmuller main disconnect switches, confirm frame size by FLA + margin and check handle color against site safety rules.

Integration with other Weidmüller products

Handles share the same door cutout style as selector/estop legends for a consistent look. Terminal pitch aligns with the brand’s push-in feed-throughs, which makes bridging and test points easy. Use the same marker carriers as on terminal blocks so device IDs match the drawings. For motor zones, add PE terminals and copper braid jumpers; short, low-impedance bonds keep touch voltages down.

Selection criteria for B2B clients

• Load and duty. Size by full-load amps with 20–25% margin; frequent switching or high ambient favors the next frame up.
• Mounting and access. Direct lever for small doors; door-coupled where external LOTO is mandatory.
• Pole scheme. 3P for three-wire; add a switched neutral if your plant audits require it.
• Auxiliaries. Fit 1NO/1NC for “OFF proven” to PLC/BMS; add early-break N where earthing rules demand.
• Environment/IP. Use sealed handles and gaskets for dust/washdown; choose shrouds on live rear access.
• Kit completeness. Order switch + handle + shaft + gasket + auxiliaries together; missing shafts are the #1 build hold.

Advantages of working with Bankoflamps

You get individual B2B pricing, a personal account manager and real-time stock across EU warehouses. We return quotes fast (≈1 hour), accept orders by EAN/MPN and provide downloadable, always-current price lists. Track lead times and order status, review purchase history with analytics, and—if approved—use post-payment up to 30 days. We consolidate shipments to cut freight, with price validity windows.