Axial Lead & Cartridge Fuses
2AG > Time Lag > 229/230 Series
PS
RoHS Pb
229/230 Series 2AG, Slo-Blo Fuse with Indicating Option E
Description
Littelfuse 229/230 series Slo-Blo Fuses are available in
2AG size cartridge or axial lead form, offer tripped fuse
indicating option, and offer features designed to meet
rigorous Telecom industry requirements.
229/230 series product ordered with the tripped fuse
indicating option show discoloration of the glass body
immediately after trip. They offer the same performance
characteristics as standard product, and help to reduce
time locating the tripped fuse and troubleshooting circuit
issues.
The 229/230 series 0.25A - 1.25A range combines
conventional overcurrent protection with ability to
Agency Approvals
withstand high current, short duration pulses which
Agency Agency File Number Ampere Range
complies to short circuit requirements of UL 60950-1/
UL 62368-1 for telephone equipment. Insulating sleeve
E10480 0.250A - 3.5A
option is also available. R efer to the Surge Withstand
Specifications section of this document for additional
29862 0.250A - 3.5A
information.
E10480 4A - 7A
Features
29862 4A - 7A
Available in cartridge Fuses are available for
and axial lead form, and board washable with
229 (Cartridge Form)
a wide range of lead the additional sealing
forming dimension and process (add suffix A to
NBK200405-E10480C 1A - 3.5A
packaging options part number)
NBK110512-E10480A 4A - 5A
NBK210405-E10480E 6A - 7A
In accordance with UL Sleeved fuse option
PS
E
Standard 248-14
available (contact
330 (Axial Leaded Form)
Littelfuse for additional
RoHS compliant and
NBK200405-E10480D
1A - 3.5A
information)
Lead-free
NBK110512-E10480B
4A - 5A
NBK210405-E10480F
6A - 7A Tripped fuse indicating
option (add suffix S to
N/A 0.250A - 7A
part number)
Additional Information
Datasheet Resources Samples Accessories
229 Series
229 Series
229 Series 229 & 230 Series
Electrical Characteristics for Series
% of Ampere
Datasheet Resources Samples
Opening Time
230 Series
Rating 230 Series
230 Series
100% 4 hours, Minimum
For recommended fuse accessories for this product series,
135% 1 hour, Maximum
see Recommended Accessories section.
3 seconds, Minimum
200%
20 seconds, Maximum
2018 Littelfuse, Inc.
Application testing is strongly recommended. Specifications are subject to change without notice.
Revised: 04/02/18Axial Lead & Cartridge Fuses
2AG > Time Lag > 229/230 Series
Electrical Characteristic Specification by Item
Agency Approvals
Ampere Voltage Nominal Cold Nominal
Amp Interrupting
Rating Rating Resistance Melting
PS
Code Rating
2 2 E
(A) (V) (Ohms) I t (A sec)
.250 0.25 250 2.4300 0.339 x x x
.350 0.35 250 1.3100 0.640 x x x
.375 0.375 250 1.1685 0.820 x x x
35A@250Vac
.500 0.5 250 0.6935 1.64 x x x
10KA@125Vac
10KA@125Vdc
.600 0.6 250 0.4805 1.75 x x x
80A@310Vac
.750 0.75 250 0.3430 2.95 x x x
.800 0.8 250 0.3060 3.45 x x x
001. 1 250 0.2120 5.64 x x x x
1.25 1.25 250 0.1460 16.8 x x x x
01.5 1.5 250 0.1077 20.0 x x x x
100A@250Vac
002. 2 250 0.0698 30.0 x x x x
10KA@125Vac
10KA@125Vdc
2.25 2.25 250 0.0567 39.0 x x x x
80A@310Vac
02.5 2.5 250 0.0502 50.0 x x x x
003. 3 250 0.0383 77.0 x x x x
100A@250Vac
03.5 3.5 250 10KA@125Vac 0.0312 110.0 x x x x
10KA@125Vdc
004. 4 125 0.0258 148.0 x x x x
005. 5 125 0.0186 267 x x x x
400A@125Vac
400A@125Vdc
006. 6 125 0.0141 380 x x x x
007. 7 125 0.0116 464 x x x x
Surge Withstand Specificatons
Peak Withstand Current(lp): These fuses will withstand 50 repetitions of a double exponential impulse wave having peak
currents(lp) and peak voltages as listed.
Nominal Cold Nominal
Ampere Rating Interrupting 10160 s 10560 s 101000 s
Amp Code Resistance Melting
(A) Rating 1500V 800V 1000V
2 2
(Ohms) I t (A sec)
.250 0.25 2.4300 0.339 23.0A 16.6A 12.4A
.350 0.35 1.3100 0.640 34.0A 25.8A 19.3A
.375 0.375 1.1685 0.820 40.0A 25.4A 19.0A
60A@600Vac
.500 0.5 0.6935 1.64 60.0A 37.7A 28.2A
40A@600Vac
.600 0.6 0.4805 1.75 71.0A 47.2A 35.3A
7A@600Vac
.750 0.75 0.3430 2.95 91.0A 65.5A 49.0A
2.2A@600Vac
.800 0.8 0.3060 3.45 104.0A 68.9A 51.6A
001. 1 0.2120 5.64 130A 88.6A 66.3A
1.25 1.25* 0.1460 16.8 162.0A 118.1A 100.0A
* 500A peak, 2500V, 210 microseconds, 20 repetitions
2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/02/18