RKB duct fan

Duct fan with a rectangular connection. RKB fan is a compact fan with very high efficiency. Airflow up to 14,100 m3/h (3,90 m3/s). RKB is available with either an AC motor or EC motor. The impeller blades are backward curved. Swing out mechanism ensures easy cleaning and service. The fan can be installed in any position.

Impeller with backward curved blades

The external impeller motor has maintenance-free bearings

IP 54 junction box

The fan housing is manufactured from galvanised steel

Swing-out mechanism for easy cleaning and maintenance

Models

Fan	AIRFLOW (m3)	POWER (W)	CURRENT(A)	RPM	CONNECTION (mm)
RKB 300 x 150 C1	540	64	0,35	2460	300x150
RKB 400 x 200 A1	885,6	115	0,5	2530	400x200
RKB 400 x 200 B1 ErP	1083,6	169	0,73	2690	400x200
RKB 400 x 200 E1 ErP	1152	229	1	2760	400x200
RKB 500 x 250 A1	1580,4	133	0,59	1270	500x250
RKB 500 x 250 B1 ErP	1129,2	168	0,73	2680	500x250
RKB 500 x 250 E1 ErP	1306,8	230	1,01	2750	500x250
RKB 500 x 250 H1	2354,4	675	3	2570	500x250
RKB 600 x 300 B1 ErP	2329,2	200	1,02	1380	600x350
RKB 600 x 300 B3 ErP	2584,8	240	0,45	1330	600x350
RKB 600 x 300 C1 ErP	3146,4	350	1,82	1390	600x350
RKB 600 x 350 B3 ErP	2764,8	245	0,46	1330	600x350
RKB 600 x 350 C1 ErP	3668,4	367	1,87	1390	600x350
RKB 600 x 350 D1 ErP	3780	476	2,18	1390	600x350
RKB 600 x 350 D3 ErP	3420	424	0,79	1330	600x350
RKB 700 x 400 B3 ErP	4237,2	386	0,8	920	700x400
RKB 700 x 400 D1 ErP	4971,6	567	2,57	1320	700x400
RKB 700 x 400 E3 ErP	5364	830	1,58	1430	700x400
RKB 700 x 400 F1 ErP	6656,4	1040	4,83	1390	700x400
RKB 800 x 500 B3 ErP	6843,6	639	1,44	880	800x500
RKB 800 x 500 D1 ErP	9774	1550	6,8	1370	800x500
RKB 800 x 500 E3 ErP	7948,8	1210	2,7	1360	800x500
RKB 800 x 500 K3	9579,6	1710	3,69	1400	800x500
RKB 800 x 500 L3 ErP	12016,8	2330	4,45	1350	800x500
RKB 1000 x 500 L3	12470,4	2450	4,9	1350	1000x500
RKB 300 x 150 B1 EC	644,4	113	0,9	3700	300x100
RKB 400 x 200 C1 EC	1274,4	162	126	2650	400x200
RKB 500 x 250 A1 EC	1346,4	162	1,24	3080	500x250
RKB 500 x 250 B1 EC	1573,2	216	0,96	2760	200x250
RKB 500 x 250 E1 EC	2487,6	366	1,59	2020	500x250
RKB 600x300A1 EC	3070,8	366	1,59	1650	600x300
RKB 600 x 300 B1 EC	4050	868	4,06	2190	600x300
RKB 600 x 300 E3 EC	4683,6	1220	1,88	2500	600x300
RKB 600x350A1 EC	4377,6	880	4,04	2200	600x350
RKB 600 x 350 E3 EC	4975,2	1220	1,91	2500	600x350
RKB 700 x 400 B1 EC	5464,8	720	3,29	1420	700x400
RKB 700 x 400 B3 EC	6933,6	1500	2,3	2300	700x400
RKB 700 x 400 E3 EC	8229,6	2420	3,68	2130	700x400
RKB 800 x 500 A3 EC	8344,8	1260	1,96	1400	800x500
RKB 800 x 500 E3 EC	10404	2570	3,92	1800	800x500
RKB 1000 x 500 B3 EC	10303,2	1570	2,45	1230	1000x500
RKB 1000 x 500 F3 EC	13309,2	3450	5,2	1630	1000x500