Spelsberg Industrial Automation

spelsberg automatics and control range map

DIN-mounted building blocks cover signal conversion, logic, and protection inside compact cabinets: plug-in and industrial relays, timing modules, monitoring relays (voltage, current, phase-sequence, insulation), small power supplies, and I/O interface blocks on 35 mm rail. Typical electrical windows: 24 V DC, 110/120 V AC, and 230/240 V AC coil/control options; terminals accept 0.5…4 mm² fine-strand with ferrules. Housing formats include 6–22.5 mm slim modules for dense racks and 45 mm bodies where front potentiometers and displays are needed. Ambient −25…+55 °C; storage −40…+80 °C.

spelsberg relays and timers families and ratings

General-purpose relays: SPDT/DPDT/4PDT, 6–16 A at 250 V AC, optical trip indicator, mechanical flag, and test lever; sockets with retaining clips and marker slots. Solid-state relays for silent, high-cycle loads, 24–280 V AC or 3–32 V DC control with dv/dt-hardened outputs. Multi-function timers (on-delay, off-delay, interval, star-delta, recycler): 0.1 s…100 h ranges, repeat accuracy ±1–2 %, wide-range supply 24–240 V AC/DC on select models. Monitoring relays: under/over-voltage, phase-loss, asymmetry, frequency, and true RMS current 0.1–16 A via internal shunt or 1/5 A via CT. Front dials lock with seals for tamper resistance.

spelsberg control components wiring and interfaces

Screw or spring-cage terminals with push-in ferrule entry speed commissioning. Pluggable jumpers loop commons across modules. Dry-contact or open-collector status outputs mirror device state to PLC inputs. Front LEDs indicate coil, trip, and timing windows. For EMC, RC snubbers and TVS suppression are integrated or offered as clip-on sockets; surge ride-through typically 1–2 kV line-to-line on control electronics. Label strips accept QR/alpha-numeric IDs to match loop drawings.

Compliance and test references engineers expect

Relays and interface modules follow IEC/EN 61810 and IEC/EN 60947-5-1; solid-state types to IEC/EN 62314; timers to IEC/EN 61812-1; measuring/monitoring per IEC/EN 60255 classes. Safety: IEC/EN 61010-1. EMC: EN 61326-1 and EN 61000-6-2/-6-4; immunity to ESD/fast transients validated for switchboard use. Pollution degree and overvoltage category ratings are printed on the side label; dielectric strength and clearance/creepage are declared for 230/400 V networks.

spelsberg control panels enclosure choices and layouts

Control layers drop into Spelsberg TK/AK ABS-PC enclosures for indoor use or GEOS polycarbonate for rooftops and façades (IP65/67). Depth adapters and 35 mm rails keep module rows aligned; clear lids enable set-point checks without opening. Add PE bars, gland plates (M16…M40), and 22 mm operator cut-outs for local start/stop, reset, and selector switches. Fire-resistant WKE junction boxes with ceramic terminals bond alarm and emergency loops to the panel without compromising circuit integrity (E30–E90).

Series overview at a glance

• Slim interface relays 6–12 mm with plug-in jumpers for high-density PLC marshalling.
• SSR heating packs with zero-cross or phase-angle control and clip-on heat sinks.
• Multifunction timers with front rotary selectors and captive scale windows.
• True-RMS current and voltage monitors with trip delay and latch.
• 24/48/96 W DIN power supplies, universal input 85–264 V AC, PF ≥ 0.95, ripple < 80 mVp-p.
• Clip-on analog isolators (4–20 mA/0–10 V) for long field runs.
  These sit alongside spelsberg automation devices such as push-buttons, pilot lights, and horn/beacon sets that share the same cut-out geometry and gaskets.

Application cues and integration

Fans/pumps: AC-3 starters assisted by interface relays and phase-failure monitors to ride brownouts. Heaters and IR banks: SSRs with heat sinks plus thermostat or PID signal; add thermal cut-outs in series. Conveyors: on-delay timers for sequenced starts; current monitors detect belt jam before motor protection trips. Life-safety circuits: WKE terminations carry emergency lighting feeds; monitoring relays supervise voltage presence on spurs. For packaged skids under spelsberg industrial control systems, combine GEOS housings, DIN power supplies, and isolators with labelled looms for fast FAT/SAT.

Cabling, spacing, and thermal behaviour

Keep 12.5–17.5 mm pitch between heat-dissipating SSRs; use the vendor heat-rise tables for adjacent load. Mount monitors and timers away from SPD leads to reduce false trips. Ferrule sizes 0.5…2.5 mm² cover most I/O; torque windows are printed on sockets. Route 0–10 V/DALI/4–20 mA in segregated trunking; 360° braid clamps at entry plates give a clean earth for shielded runs.

Selection checklist for panel engineers

1. Function block: relay, timer, SSR, voltage/current/phase monitor, or isolator.
2. Supply and I/O: 24 V DC vs 110/230 V AC; contact rating (6/10/16 A) or SSR current with heat sink.
3. Set-point and user access: front dial vs sealed preset; display need; latch vs auto-reset.
4. Environment: IP class of enclosure, ambient, vibration; specify conformal coating where condensation is possible.
5. Documentation: wiring symbol pack, terminal maps, and test points; mirror tag numbers on the label strips so spelsberg automation accessories arrive pre-marked.

Accessories that complete the build

Rail kits, end-stops, socket retainers, jumper combs, PE bars, 22 mm selector/push-button hardware, legends, cable markers, and EMC glands form the typical pick list. For outdoor GEOS, add drain/vent plugs and UV-stable glands. In marshalling racks, use pluggable relay sockets with integrated diodes/RC snubbers to protect PLC outputs.