ROSENBERGCentrifugal fans : forward curved (Type: E/DRA…) ROSENBERG洛森離心風(fēng)機(jī)ERA/DRA系列 Properties產(chǎn)品屬性: flow rates up to 15,000 m³/h流量高達(dá)15000立方米/小時(shí) size: 180 – 400 mm (impeller diameter) 180 - 400毫米（葉輪直徑） casing made of galvanised sheet steel外殼由鍍鋅鋼板制成 asynchronous external rotor motor異步外轉(zhuǎn)子電機(jī) forward curved impellers前彎葉輪 feet can be offset by 90° 底腳可以偏移90° protection class IP54防護(hù)等級(jí)IP54 thermal class F熱敏等級(jí)F connection cable on side連接電纜位于側(cè)部 motor protection by thermal contacts有熱敏保護(hù) speed is variable using auto transformers可變速
Casings are made of galvanised sheet steel. Side parts and the spiral-shaped guide plate are connected with rivets. In the side panels, there are holes for the fixing of the feet, which can be implemented by 90°. model – ERA : single inlet design (E) model – DRA : double-sided inlet design (D) 外殼由鍍鋅鋼板制成。側(cè)面部件和螺旋形導(dǎo)向板用鉚釘連接。在側(cè)面板上，有用于固定腳的孔，可以實(shí)現(xiàn)90°旋轉(zhuǎn)。 型號(hào)-ERA：?jiǎn)稳朐O(shè)計(jì)（E） 型號(hào)-DRA：雙入設(shè)計(jì)（D）
The impeller is made of galvanised sheet steel and is mounted directly to the rotor of the external rotor motor and balanced dynamically at two levels together with the rotor according to quality level G2.5 to DIN ISO 1940. 葉輪由鍍鋅鋼板制成，并直接安裝在外轉(zhuǎn)子電機(jī)的轉(zhuǎn)子上，實(shí)現(xiàn)動(dòng)平衡。根據(jù)DIN ISO 1940的質(zhì)量等級(jí)G2.5 DIN ISO 1940.
The drive motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose. 驅(qū)動(dòng)電機(jī)裝有輸出電纜。電氣連接通過(guò)IP44接線盒進(jìn)行。
