Fans are round OSTBERG CK 100 A/C, CK EC, etc.

Circular duct fans OSTBERG of the SK series – single-phase asynchronous motors with an external rotor and with blades bent back are used. They are compact, do not require much space for installation and have high performance. Fans can handle high pressure losses in complex duct systems by operating with low noise levels. The fan speed can be easily controlled using regulators.

Duct fans OSTBERG of the CK EC series are equipped with an electronically commutated motor (EC motor) with an external rotor and an impeller with backward-curved blades. CK EC fans are available in sizes from 100 to 315 mm and are designed to be connected to circular air ducts. The degree of protection of the electric motor is IP 44 or IP 54, and the terminal box is IP 54.

Model: CK 100 A/C, CK 125 A/C, CK 150 B/C, CK 160 B/C, CK 200 A/B, CK 250 A/C, CK 315 B/C, CK-100 C EC, CK-125 C EC, CK-160 B/C EC, CK-200 A/B, EC, CK-250 A/B, EC, CK-315 B/C EC 315 B1 BFC, BFC 315 B1 EC BFC 315 EC C1, D1 ErP BFC 315, 355 B1 EC BFC, BFC 355 EC D1, D1 ErP 355 BFC, BFC 355 D3 EC 400 EC B1 BFC, BFC 400 ErP B1, B3 EC 400 BFC, BFC 400 B3 ErP, ErP BFC 400 E1, E3 ErP BFC 400, 500 B1 EC BFC, BFC 500 ErP B1, B3 EC 500 BFC, BFC 500 ErP B3, D1 500 ErP BFC, BFC 500 EC D3, D3 500 ErP BFC, BFC 630 A1 ErP BFC 630 EC A3, A3 ErP 630 BFC, BFC 630 B3 ErP, ErP 630 C3 BFC, BFC 630 EC D3, D3 ErP BFC 630, 630 E3 EC BFC, BFC 630 F3 EC, CK 4 A UL, C UL 4 CK, CK 5 A UL, C UL CK 5, CK 6 B UL, C UL CK 6, CK 8 A UL, UL B CK 8, CK 10 A UL, C UL CK 10, CK 12 B UL, C UL CK 12.