r-tec 220-K Control Unit

Overview

Not every facility has a 380 V three-phase line, and the 220-K exists to fill exactly that gap — the compact member of the r-tec control unit family aimed at 220 V single-phase installations. Positioned as the 220 V single-phase alternative to the I-380 three-phase direct-drive control board, it delivers industrial door control in workshops, garage services and small production sites — across compact industrial sectional and roll-up door applications — without the investment of running a three-phase line.

220-K vs I-380 vs FU

	220-K	I-380	FU
Mains	220 V single-phase	380 V three-phase	220 V single-phase
Drive type	Direct-drive	Direct-drive	Inverter (VFD)
Target product	Compact industrial	Standard industrial	HPVC + sliding
Soft start	None	None	Available
Profile	Compact	Compact	Larger
Facility need	Widespread	Three-phase required	Widespread

→ For 220 V single-phase compact industrial, 220-K; in three-phase installations I-380; in HPVC or applications where soft start is mandatory, FU.

Button cabinet + emergency stop

The distinguishing feature of 220-K is the integrated button cabinet for operator use. On the top surface of the body:

• Open button (green) — Moves the door in the opening direction.
• Close button (green) — Moves the door in the closing direction.
• Stop button (red mushroom emergency stop) — Instant stop; the position accessible from every point of the site is critical.

The operator usually uses these buttons in industrial sites; remote control is optional (as a backup or to open the door from inside the vehicle).

Target projects

• Workshop + repair centre entrance gate
• Service garage (automotive + industrial equipment)
• Small production facility (with 220 V single-phase mains)
• Agricultural operation warehouse entrance
• Compact cold storage

Field discipline

• The input-output differences between 220-K and I-380 are numbered on the connection schematic. The same motor connection comes from a 220 V single-phase input on 220-K and from 380 V three-phase on I-380 — the mains side differs.
• Mains capacity check — The 220-K draws an average of 1.5-2 kW current for motor driving; the facility fuse panel must have a min. 16 A C-type breaker.
• Earthing — Earthing sensitivity is high in single-phase installations; loose earthing can cause an emergency stop signal.
• Photocell + safety strip — Photocell is mandatory for operator safety in industrial application.

Model notes

The input-output differences between 220-K and I-380 are numbered on the connection schematic. If 380 V three-phase is available at the facility, I-380 is always preferred (direct-drive same class but stronger driving + simple motor use).