Wireless crane remote control | 2 buttons + START/STOP | 1 speed | 868 MHz | 230 V AC | ES-F21-T2S

Wireless crane remote ES-F21-T2S – 2 buttons, START/STOP, 868 MHz, 230 V AC receiver

ES-F21-T2S is a compact single-speed radio remote with 2 direction buttons (up / down), START and STOP. The transmitter sends the command over 868 MHz to the receiver, whose relays switch the contactor coils – the motor is always switched by a contactor. Suitable for hoists, crane beams, winches and lifts.

• 2 direction buttons – up / down, single speed
• START – the system is enabled only by a deliberate action
• STOP – de-energises the main contactor
• 868 MHz radio – EU SRD band, 150 m, up to ~250 m in open space
• 230 V AC receiver – connects to a control circuit of the same voltage
• Battery-powered transmitter – no cables, no charger
• 130 × 55 mm transmitter – fits in the palm and in a pocket

• ES-ML-K2 – 2 buttons, 230 V AC, IP66 housing
• ES-F21-2SE – 2 buttons, 12–440 V AC/DC receiver, IP65
• ES-LD-BC2 – 2 buttons, modular 230 V AC receiver without housing
• ES-21-2S – 2 buttons, 10 A receiver relays, 12–440 V AC/DC receiver

• Electric hoists and crane beams
• Single-speed overhead and gantry cranes
• Electric winches
• Lifts and lifting platforms
• Workshops, production halls and warehouses
• Lifting equipment on construction sites

• The receiver relays switch contactor coils only – motor current must never flow through them.
• The receiver supply voltage must match the control circuit and contactor coil voltage.
• The STOP / MAIN relay de-energises the main contactor KM0; during commissioning check that the crane 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.
• 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.
• 2 buttons control one motion (up / down) – for travel as well you need a 4- or 6-button remote.

Who is ES-F21-T2S for?

ES-F21-T2S is a 2-button single-speed radio remote with an 868 MHz link and a 230 V AC receiver. Choose it when an existing contactor circuit needs simple wireless control instead of a pendant.