Wireless crane remote control | 4 buttons + START/STOP | 1 speed | 868 MHz | 230 V AC | modular receiver | ES-LD-BC4

Wireless remote ES-LD-BC4 – 4 buttons, 868 MHz, modular 230 V AC receiver

ES-LD-BC4 is a radio control kit with 4 direction buttons (up / down / east / west), START and STOP, and a modular receiver – an open board with relays and terminals. The transmitter sends the command over 868 MHz and the receiver relays switch the contactor coils. The board has no housing, so it is mounted in a sealed enclosure or control panel.

• 4 direction buttons – up / down / east / west, single speed
• START – the system is enabled only by a deliberate action
• STOP – switches off the receiver relays
• 868 MHz radio – EU SRD band, 150 m, up to ~250 m in open space
• Modular 230 V AC receiver – the board fits into an existing enclosure or panel
• Battery-powered transmitter – no cables, no charger
• −35…+75 °C – wide operating temperature range

• ES-LD-BC2 – 2 buttons (up / down) – when one motion is enough
• ES-ML-K4 – 4 buttons, receiver in IP66 housing – for cranes and outdoor work
• AK-C211008 – 4 buttons, 433 MHz modular receiver
• ES-F21-4SE – 4 buttons, housed 12–440 V AC/DC receiver, IP65

• Gates, barriers and lifting doors
• Small electric winches
• Lifts and lifting platforms
• Conveyors and other on/off drives
• Retrofitting existing panels – radio control instead of push buttons
• Hoists – together with an additional safety circuit

• The receiver relays switch contactor coils only – motor current must never flow through them.
• The board has no housing – install it in a sealed IP enclosure or panel to keep out moisture and dust and to make the 230 V terminals inaccessible.
• Provide the main contactor and emergency stop circuit separately; during commissioning check that the machine stops when the transmitter is switched off or the link is lost (EN 60204-32).
• Limit switches (SQ) and NC interlocking of opposite directions stay in the circuit – the radio remote does not replace them.
• On cranes and heavy lifting equipment the modular receiver is used only with an additional safety circuit.
• Before installation or repair, switch off and lock the main isolator (LOTO).

Quick selection guide

Check before ordering:

• The receiver is supplied with 230 V AC – contactor coils must be 230 V AC; for another control voltage choose a model with a 12–440 V AC/DC receiver.
• 868 MHz is an EU SRD band; if used outside the EU, check that the frequency is permitted there.
• 4 buttons control two motions (e.g. hoisting and travel) – for a third axis choose a 6-button remote.

Who is ES-LD-BC4 for?

ES-LD-BC4 is a 4-button radio kit with a modular 230 V AC receiver that fits into an existing enclosure or panel. Choose it for gates, small winches and lifts where a receiver housing is not needed.