LPN-RK-1-1/4SP Cooper/Bussmann, LPN-RK-1-1/4SP Datasheet - Page 2

• Manufacturer Part Number: LPN-RK-1-1/4SP
• Manufacturer: Cooper/Bussmann
• Type: Dual Elementr

Specifications of LPN-RK-1-1/4SP

• Acting: Slow Blow
• Voltage Rating (vac): 250V
• Voltage Rating (vdc): 250V
• Current Rating: 1.25A
• Mounting: Surface Mount
• Product Depth (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Lead Free Status / RoHS Status: Compliant

Current Limitation Curves
Current-Limiting Effects
Prosp.
S.C.C.
*Values derived from curve data
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of
this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical informa-
tion that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of
any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice,
any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
100,000
150,000
200,000
250,000
300,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
0310 BU-SB08916
© 2010 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
5,000
400,000
100,000
10,000
1,000
A
A-B=ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS)
2,100
2,600
2,950
3,200
3,350
3,550
3,750
3,900
4,150
4,400
4,750
5,050
5,700
6,200
6,600
7,000
100A
Let-Through Current (Apparent RMS
Symmetrical) Versus Fuse Rating
RMS SYMMETRICAL CURRENTS IN AMPS
10,300
11,050
11,750
3,150
3,950
4,500
4,900
5,300
5,600
5,850
6,150
6,600
7,000
7,650
8,250
9,400
200A
10,050
10,700
11,250
12,200
12,950
14,500
15,700
16,700
17,550
5,000
6,900
7,650
8,350
8,850
9,300
9,700
400A
10,250
11,050
11,750
12,250
12,800
13,250
14,050
14,750
15,850
16,800
18,650
20,100
21,250
22,350
B
5,000
9,250
600A
600A
400A
200A
100A
Time-Current Characteristic Curves–Average Melt
Note: 60 Amp fuse curve is ferrule style and included to show only
Page 2 of 2
relative performance. For actual 60 amp time-current curve
performance, see Data Sheet 1003.
Current in Amps
Data Sheet 1004