Danfoss FC 301

8.8 Connection Tightening Torques
Enclosure
Size
200–240 V
[kW (hp)]
380–500 V
[kW (hp)]
525–690 V
[kW (hp)]
Purpose Tightening torque [Nm]
([in-lb])
A2
0.25–2.2
(0.34–3.0)
0.37–4 (0.5–
5.0)
–
Mains, brake resistor, load sharing, motor cables. 0.5–0.6 (4.4–5.3)
A3
3–3.7 (4.0–
5.0)
5.5–7.5
(7.5–10.0)
1.1–7.5
(1.5–10.0)
A4
0.25–2.2
(0.34–3.0)
0.37–4 (0.5–
5.0)
–
A5
3–3.7 (4.0–
5.0)
5.5–7.5
(7.5–10.0)
–
B1
5.5–7.5
(7.5–10.0)
11–15 (15–
20)
–
Mains, brake resistor, load sharing, motor cables. 1.8 (15.9)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
B2 11 (15)
18.5–22
(25–30)
11–22 (15–
30)
Mains, brake resistor, load sharing cables. 4.5 (39.8)
Motor cables. 4.5 (39.8)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
B3
5.5–7.5
(7.5–10.0)
11–15 (15–
20)
–
Mains, brake resistor, load sharing, motor cables. 1.8 (15.9)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
B4
11–15 (15–
20)
18.5–30
(25–40)
11–30 (15–
40)
Mains, brake resistor, load sharing, motor cables. 4.5 (39.8)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
C1
15–22 (20–
30)
30–45 (40–
60)
–
Mains, brake resistor, load sharing cables. 10 (89)
Motor cables. 10 (89)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
C2
30–37 (40–
50)
55–75 (75–
100)
30–75 (40–
100)
Mains, motor cables.
14 (124) (up to 95 mm
2
(3 AWG))
24 (212) (over 95 mm
2
(3 AWG))
Load sharing, brake cables. 14 (124)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
C3
18.5–22
(25–30)
30–37 (40–
50)
37–45 (50–
60)
Mains, brake resistor, load sharing, motor cables. 10 (89)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
C4
37–45 (50–
60)
55–75 (75–
100)
11–22 (15–
30)
Mains, motor cables.
14 (124) (up to 95 mm
2
(3 AWG))
24 (212) (over 95 mm
2
(3 AWG))
Load sharing, brake cables. 14 (124)
Relay. 0.5–0.6 (4.4–5.3)
Ground. 2–3 (17.7–26.6)
Table 8.24 Tightening Torque for Cables
Specications Operating Guide
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