Mechanical Installation; Connection Tightening Torques - Danfoss VLT AutomationDrive EZ FC 321 Installation Manual

VLT®AutomationDrive EZ FC 321
Installation Guide

3 Mechanical Installation

3.1 Connection Tightening Torques

Table 3: Tightening Torque for Cables
Location
Mains terminals [in-lb]
Motor terminals [in-lb]
Ground terminals [in-lb]
Brake terminals [in-lb]
Relay terminals [in-lb]
Bolt size M10/M12
1
Bolt size M8/M10
2
3.2 Cooling
• Ensure that top and bottom clearance for air cooling is provided. See
Illustration 2: Top and Bottom Cooling Clearance
Table 4: Minimum Airflow Clearance Requirements
Enclosure A2–A3, A5
a [in] 3.9
10 | Danfoss A/S © 2021.05
Enclosure sizes
A2–A5 B1/B3 B2/B4
4.4–5.3 15.9 39.8
4.4–5.3 15.9 39.8
– 17.7–26.6 17.7–26.6
4.4–5.3 15.9 39.8
– 4.4–5.3 4.4–5.3
a
a
B1–B4
7.8
C1/C3 C2/C4
89
124 (up to 3 AWG)
212 (over 3 AWG)
89
124 (up to 3 AWG)
212 (over 3 AWG)
17.7–26.6 17.7–26.6
89 124
4.4–5.3 4.4–5.3
Table 4 for clearance requirements.
C1, C3 C2, C4
7.8 8.9
AN354546796134en-000201 / 130R0954
Mechanical Installation
D1h/D3h
168/335
(1)
168/335
(1)
84/169
(2)
84
4
D1h–D4h
8.9