Wireless proportional remote control | 7 levers | 433 MHz | receiver 24 V DC | IP68 | ES-CRC687

Wireless proportional remote control: 7 levers, 433 MHz, IP68

ES-CRC687 is a belly-type wireless remote with 7 levers for hydraulic loader cranes, hydraulic machinery and cranes with frequency inverters. The lever position is sent by radio (433 MHz) to the receiver, and the receiver outputs drive the proportional solenoids of the hydraulic valve block or the inputs of a frequency inverter. The receiver runs on 24 V DC.

• 7 proportional levers – seven hydraulic functions with smooth speed control
• 433 MHz radio – EU SRD band, up to ~300 m with line of sight
• Belly housing with frame and strap – hands stay free for the levers, the remote does not slip
• 24 V DC receiver – fits 24 V on-board systems and control cabinets
• Li-ion 7.4 V / 3000 mAh – rechargeable transmitter battery
• IP68 – dust-tight and protected against continuous immersion

• ES-WRC685 – 5 levers, 2.4 GHz, protective frame – when fewer functions are enough
• ES-WRC624 – 6 levers and 3 rotary controls, 2.4 GHz
• ES-BT500 – 9 control functions, up to ~500 m, IP66, 2 batteries included

• Truck-mounted hydraulic loader cranes
• Timber and scrap handling loaders
• Hydraulic construction and municipal machinery
• Overhead and gantry cranes with frequency inverters
• Retrofitting older machines – adding radio control to manual levers

• Receiver outputs are for the control circuit: valve coils and inverter inputs. Never connect pump or crane motors directly – only through a contactor.
• Receiver supply is 24 V DC through a dedicated fuse; valve coils must match the output voltage and current.
• The emergency STOP cuts the valve supply, the pump or the main contactor KM0; on loss of the radio link the movement must stop (EN 60204-32).
• Limit switches (SQ), overload protection and hydraulic relief valves stay in the circuit – the radio remote does not replace them.
• Use a valve block with spring return to neutral; fit suppression diodes on DC coils that do not have them.
• Before any repair switch off the main isolator or on-board supply, lock it out (LOTO) and relieve the hydraulic pressure.

Quick selection guide

Check before ordering:

• Valve coil type (proportional or ON/OFF), voltage and current, or the inverter input type – send us the data and we will match the outputs.
• Control circuit voltage – the receiver is 24 V DC; for 12 V DC machinery choose ES-YLB12.
• How many hydraulic functions and extra switches you need – we will match a remote with the right number of levers.

ES-CRC687 – 7-lever proportional remote

Belly-type remote with 7 proportional levers and a strap, 433 MHz, up to ~300 m, 24 V DC receiver, IP68. Send us your valve block data and we will match the outputs.