KUKA 00-141-987 Optocoupler Terminal Block

KUKA 00-141-987 — Optocoupler Terminal Block (Solid-State Relay)

The KUKA spare part 00-141-987 is an optocoupler terminal block — a compact, DIN-rail mounted solid-state relay used inside KUKA robot controller cabinets to isolate and switch low-power DC loads. It replaces bulky electromechanical relays with a wear-free MOSFET output while keeping the control side galvanically separated from the load side, which is why it is a common choice both for new cell integration and for keeping as a fast drop-in spare on the shelf.

Specifications

Industrial Applications

• Signal and load isolation inside KUKA robot controller cabinets (I/O and safety output stages), with a 6.2 mm DIN-rail footprint that is easy to lay out in compact panels.
• Switching solenoid valves, indicators, contactors and small DC loads from a 24 V DC control signal in PLC and automation panels where galvanic isolation is required.
• A direct replacement when an existing optocoupler or electromechanical relay fails on the line — minimizing stoppage time for maintenance and production teams.
• A high-turnover KUKA relay terminal block that traders and distributors stock and cross-reference for quote and availability matching.

Design Purpose

This terminal block keeps the controller's sensitive electronics safe: the optocoupler and MOSFET output provide galvanic isolation (2.5 kV AC) between the 24 V DC control side and the load side, so transients, ground loops or a short on the load never reach the controller. At only 6.2 mm wide it packs a solid-state switch into a single DIN-rail position, eliminating relay contact wear and the need for separate interface relays — a key reason integrators and maintenance teams prefer it over mechanical relays.

Common Failure Modes

• Output MOSFET short or open — usually caused by load overcurrent, reverse polarity or voltage spikes beyond the 30 V DC / 3 A rating.
• Isolation breakdown — condensation, dust or conductive contamination across the terminals can defeat the 2.5 kV barrier.
• Loose terminal connections — vibration in robot cells can loosen connections over time, causing intermittent drops.
• Status LED failure — the indicator may stop lighting while the switch still works; treat it as a visual-only fault.

If your cabinet shows intermittent outputs, a stuck load, or a failed status LED, send us your controller model and we will confirm whether this is the right replacement.

Why Choose Us

• Genuine KUKA 00-141-987 optocoupler terminal block, function-checked (control response and isolation) before dispatch — a verified drop-in spare that gets your cell running again.
• Exact electrical match with full published specs and a 6.2 mm DIN-rail footprint, so integrators can specify it with confidence and maintenance teams can swap it without rewiring the panel.
• Worldwide shipping from Shanghai via DHL, FedEx and UPS, typically 3–5 working days to most regions — useful for traders and distributors managing lead times.
• Not sure which variant your controller needs? Send your part number or controller nameplate and we confirm the match before you order.

Related Products

• Other KUKA optocoupler and relay terminal blocks in the same controller families.
• KUKA controller I/O modules and interface relays.
• DIN-rail terminal blocks and accessories for cabinet build-out.

Send your KUKA part number or controller model and we cross-reference the exact match plus any related items you may need.