ROSENBERGCentrifugal fans : forward curved (Type: E/DRA…)
ROSENBERG洛森離心風機ERA/DRA系列
Properties產品屬性:
flow rates up to 15,000 m³/h流量高達15000立方米/小時
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異步外轉子電機
forward curved impellers前彎葉輪
feet can be offset by 90° 底腳可以偏移90°
protection class IP54防護等級IP54
thermal class F熱敏等級F
connection cable on side連接電纜位于側部
motor protection by thermal contacts有熱敏保護
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。側面部件和螺旋形導向板用鉚釘連接。在側面板上，有用于固定腳的孔，可以實現90°旋轉。
型號-ERA：單入設計（E）
型號-DRA：雙入設計（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，并直接安裝在外轉子電機的轉子上，實現動平衡。根據DIN ISO 1940的質量等級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.
驅動電機裝有輸出電纜。電氣連接通過IP44接線盒進行。

（）上海愛澤工業設備有限公司