HUYU 100H H8M-100U, Installation And Operation Instruction Manual

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Table 5 Overcurrent protection characteristics of circuit breakers for
motors
Rated current In
(A)
Thermal release (ambient tempe40°C)
Operating current
of
electromagnetic
release (A) [Note]
1.0 In non-
operating time
(h)
(initial state: cold
state)
1.2 In operating
time (h)
(initial state:
thermal state)
1.5 In operating
time (min)
(initial state:
thermal state)
7.2 In operating
time (s)
(initial state: cold
state)
In≤63
>2 ≤2
≤2 2<Tp≤10
(12±2.4)In 63<In≤250 ≤ 4 4<Tp≤10
250<In≤800 ≤8 6<Tp≤20
[Note]: The operating current of the electromagnetic release of H8M- 630 and 800 (400 A ≤ In ≤
800 A) is (5±1) In to 14 In.
Adjustable reference value: Low (4 ~ 6) In; Relatively low (6 ~ 8.3) In; Relatively high (8.3 ~ 10.9)
In; High (10.9 ~ 14) In.
6 Circuit Breaker Accessories
6.1 List of accessory models (see Table 6).
Table 6 List of accessory models
Shell frame level rated current Inm
(A)
63 100 250 400 630, 800
Int
er
nal
ac
ces
sor
ies
Alarm contact B1 B2 B3 B4
Auxiliary contact F1 F2 F3 F4
Shunt trip FL1 FL2 FL3 FL4
Undervoltage release QY1 QY2 QY3 QY4
Accessory terminal JX
Special release with prepaid
kilowatt-hour meter
Y
Ex
ter
nal
ac
ces
sor
ies
Rotation operating handle CS1-63 CS1-100 CS1-250 CS1-400 CS1-630
Electric operating mechanism MDX0 MDX1 MDX2 MDX3 MDX4
Mechanical
interlock
3-pole N1-3 N2-3 N3-3 N4-3 N5-3
4-pole —— N2-4 N3-4 N4-4 N5-4
6.2 Rated values of auxiliary contacts and alarm contacts
Conventional thermal current Ith = 6 A;
Rated working current Ie = 0.79 A (230 V, AC) Ie = 0.47 A (400 V, AC);
Ie = 0.15 A (220 V, DC).
6.3 Shunt trip parameters
Rated voltage Us: AC: 110 V, 230 V, 400 V; input capacity: 180 VA;
DC: 24 V, 48 V, 110 V; input capacity: 60 W.
The circuit breaker can interrupt reliably under (70% ~ 110%) Us, and
the operating time is 10 ms ~ 30 ms.