Spelsberg Switch Disconnectors
spelsberg switch disconnectors form factors and current frames
Panel-mount bases for door coupling, compact DIN-rail bodies up to the smaller sizes, and IP65 enclosed units with red/yellow handles cover most board and machine points. Pole sets: 3P, 3P+N, and 4P; neutral kits include early-make/late-break options for metering integrity. Typical electrical window: Ui 690 V AC, Uimp 6–8 kV, Ith published per frame; operating −25…+55 °C with altitude derating above ~2000 m. Terminals accept fine-strand with ferrules; cage/box clamps span ~1.5…240 mm² depending on size.
spelsberg load break switches duties and utilization categories
Labels show AC-22A for mixed resistive/inductive feeders and AC-23A where motor/transformer duty needs higher making/breaking. Short-time withstand (Icw 1 s) commonly 10–50 kA by frame; conditional short-circuit ratings are declared when backed by gG/aM fuses. DC variants and multi-pole series connections achieve DC-21B/DC-22B ratings for battery strings and PV combiners—observe the specified number of poles in series.
spelsberg rotary disconnectors handles, kits, and enclosures
Door-coupled kits ship with adjustable shafts (typ. 100–320 mm), bushings, and padlockable handles. Colour codes: black/grey for maintenance isolation; red/yellow for main safety isolation. Interlocks hold the door closed in ON; a defeat accessory allows authorized opening for test. Enclosed units reach IP65 on the face when gaskets are seated; IK08 fronts resist site knocks. Mechanical endurance often 10–20 k cycles; electrical endurance at AC-23A is stated at In and cosφ 0.65–0.8.
spelsberg main switch units features you check on drawings
- Visible isolation on larger frames, or clear position indication on compact types.
- Auxiliary contacts (OF/SD) for status back to PLC/BMS.
- Terminal shrouds and phase barriers to maintain IP20.
- Top/bottom cable entry choices; rear or front bridging bars.
- Shaft depth, door thickness window, and handle footprint to match enclosure cut-outs.
Technical references that actually drive selection
IEC/EN 60947-3 for switches, disconnectors and switch-disconnectors; terminals/torque printed on the device; pollution degree/overvoltage category on the label. Temperature-rise data supports spacing around warm busbars; use manufacturer correction factors for risers above 40 °C.
Range overview and typical collections
- Panel-base, door-coupled: plate-mount mechanism plus external handle for MCC panels and DB incomers.
- DIN-rail bodies: compact footprints for sub-boards and machine boxes, often 3P or 3P+N.
- Enclosed (IP65): wall units for local plant isolators; stainless fixings available for outdoor use.
- DC assemblies: multi-pole series builds for PV/battery rooms, labelled with pole-in-series rules.
Across the page you may also see OEM-ready kits bundling handle, shaft, auxiliaries, and shrouds so one code completes a node.
Applications and compatibility cues
Main incomer isolation, local motor isolators near AHUs/pumps, and lockable switches beside UPS maintenance bypass cabinets are the routine placements. For heater banks and PDUs, AC-22A is sufficient; for drives/transformers, specify AC-23A with adequate making capacity. Bathroom/wash-adjacent areas use gasketed faces; rooftops and façades need UV-stable housings and stainless hardware. Where your schedule names spelsberg electrical isolators, confirm neutral switching (3P+N or 4P) and early-make neutral for metering chains.
One-line integration notes (panels and protection)
Upstream fuses/MCCBs define conditional short-circuit ratings—match the table, including generator mode. SPD rows nearby need short leads (≤0.5 m) and defined back-up protection; keep isolator copper away from SPD magnetic loops. Meters benefit from early-make neutral auxiliaries. If the document groups the function as spelsberg isolator switches, mirror that term on labels while keeping utilization category and pole set explicit.
Selection checklist for engineers
- Duty: AC-22A vs AC-23A (and DC-21B/DC-22B where relevant).
- Current & withstand: In, Icw (1 s), and conditional rating with the chosen fuse/MCCB.
- Poles/neutral: 3P, 3P+N, 4P; early-make neutral for measurement integrity.
- Mounting: DIN vs plate-mount vs IP65 enclosure; shaft length and door thickness.
- Interfaces: auxiliaries (OF/SD), padlock points (OFF), door interlock (ON), defeater policy.
- Cabling: terminal size, entry side, shrouds; verify torque windows.
When specs mention spelsberg manual disconnect switches, make the handle colour and padlock count part of the note so the safety narrative is consistent.
Compact procurement note
Quote each unit by In, utilization category, pole set, Ui/Uimp, Icw/conditional kA, mounting type, handle set (colour, padlocks, interlock), auxiliaries, terminal range, and IP/IK. Enclosed kits should list enclosure size, entry orientation, and hardware material.
Bankoflamps support
We align frames, pole sets, handles, auxiliaries, and enclosure cuts to your panel drawings and enclosure series. Live EU stock is visible before crews are booked; quotes usually land within about an hour with EAN/MPN, coordination tables, shaft/door notes, and accessory codes. Orders go by manufacturer code with dated price lists; we track lead times and consolidate by site/zone to keep off-loading tight. Post-payment up to 30 days is available for approved clients in France, the Baltics, Germany, Spain, Italy, Belgium, and the Netherlands.