HDL26020 SQUARE D, HDL26020 Datasheet - Page 9

• Manufacturer Part Number: HDL26020
• Description: CIRCUIT BREAKER, THERMAL MAG, 2P, 20A
• Manufacturer: SQUARE D
• Series: PowerPactr

Specifications of HDL26020

• Actuator Style: Toggle
• No. Of Poles: 2
• Current Rating: 20A
• Voltage Rating Vdc: 250V
• Voltage Rating Vac: 600V
• Mounting Type: DIN Rail
• Terminals: Lug
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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All Rights Reserved
H-Frame Trip Curve
(l
(l
t
0
n
i
) Fixed threshold
) Fixed threshold thermal
protection against
overload
magnetic protection
against short circuits
H-Frame Trip Unit
l n
l i
J-Frame Trip Unit
25 0A
(ln )
125 0
(lm )
250 0
l
Trip System (Trip Units)
The H-frame and J-frame circuit breakers are equipped with a thermal-magnetic trip system designed
to open automatically under overload or short circuit. H-frame and J-frame circuit breakers contain
individual thermal (overload) and magnetic (short circuit) sensing elements in each pole.
The amperage ratings of the thermal trip elements are calibrated at 104°F (40°C) free air ambient
temperature. Per the National Electric Code
continuously at up to 80% of their rating.
100% Rated
Some models of the H- and J-frame circuit breakers are UL Listed to be applied at up to 100% of their
current rating. Because of the additional heat generated, the use of specially-designed enclosures
(defined on page 42) and 90°C rated wire is required when applying circuit breakers at 100% of
continuous current rating. Markings on the circuit breaker indicate the minimum enclosure size and
ventilation required. The 90°C wire must be sized according to the ampacities of the 75°C wire column
in the NEC. Circuit breakers with 100% rating can also be used in applications requiring only 80%
continuous loading.
Field-Installable Trip Units
Table 3:
H-Frame Trip Units
Table 4:
1
Table 5:
Temperature
°C
-10
0
10
20
30
40
50
60
Ampere Rating
Hold (A)
Trip (A)
15–60 A H-Frame
Amperage
15 A
20 A
25 A
30 A
35 A
40 A
45 A
50 A
60 A
Shaded areas indicate temperature rerated values, non-shaded areas are standard circuit breaker ampere ratings at 40° C (104° F).
°F
14
32
50
68
86
104
122
140
1
Temperature Rerating (H-Frame Trip Unit Thermal Protection—Long-Time)
H-Frame and J-Frame 3P Field-Installable Thermal-Magnetic Trip Unit
H-Frame Trip Unit Short Circuit Protection (Fixed) I
Cat. No.
HT3015
HT3020
HT3025
HT3030
HT3035
HT3040
HT3045
HT3050
HT3060
Rating (A) I
23
21
20
18
17
15
12
9
15–30 A
350
750
30
28
26
24
22
20
17
14
70–150 A H-Frame
Amperage
70 A
80 A
90 A
100 A
110 A
125 A
150 A
—
—
n
38
36
33
31
28
25
21
17
46
43
40
37
34
30
25
20
PowerPact
35–50 A
400
850
53
49
46
42
39
35
30
24
Cat. No.
HT3070
HT3080
HT3090
HT3100
HT3110
HT3125
HT3150
—
—
®
60
56
52
48
44
40
34
28
(NEC
68
63
59
54
50
45
38
31
®
), circuit breakers may only be applied
®
76
71
66
62
56
50
43
35
H- and J-Frame Circuit Breakers
150–250 A J-Frame
Amperage
150 A
175 A
200 A
225 A
250 A
—
—
—
—
88
83
77
72
66
60
53
46
60–90 A
800
1450
Section 1—General Information
103
97
90
84
77
70
62
53
i
112
107
101
96
88
80
72
63
Cat. No.
JT3150
JT3175
JT3200
JT3225
JT3250
—
—
—
—
123
117
111
105
98
90
80
70
100
137
131
126
120
110
86
72
100–150 A
900
1700
160
151
141
132
121
110
95
80
06/2010
180
171
161
152
139
125
109
93
221
207
194
180
165
150
131
111
9