938 Box Fuse
Main Characteristics
Box fuse;Super Time-Lag (TT)
Standard
IEC 60127
Materials
Fuse body: Thermoplastic
Lead: Tin plated copper
Operating Temperature
-55 to +125
Storage Conditions
+10 to +60
Relative humidity:≤75% yearly average
without dew, maximum 30 days at 95%
Vibration Resistance
24 cycles at 15 min. each (60068-6)
10-60Hz at 0.75mm amplitude
60-2000Hz at 10g acceleration
Soldering Parameters
260.5 sec (Wave Soldering)
350.3 sec (Hand Soldering)
Soldering Peak:
260. 10 sec.
Series Amp Code Supplementary Code Qty
93
8
RoHS
Dimensions (unit:mm)
Notes: 1. Permissible continuous operating current is ≤100% at ambient temperature of 23°C (73.4°F)
2. For certification,○ means pending
3. The current values used for calculating I2T should be within the standard range of 10In
Ordering Information
1000
1A
1.25A
1.6A
2A
2.5A
3.15A
4A
5A
6.3A
500mA
630mA
8A
10A
12.5A
20A
25A
15A
16A
100
100
10
IN SECONDS
1
TIME
0.1
0.01
TM
Intertek
01
4
IATF 16949
ISO 9001-2015
National High-tech Enterprise
SC 3
2C National Technical
Committe Member of China
Intertek ISO 9001 Certificated Company
Intertek ISO 14001 Certificated Company
Intertek QC 080000 Certificated Company
NQA IATF 16949 Certificated Company
SC 32C 国内专家组成员单位
I S O 9 0 0 1 企 业
I S O 1 4 0 0 1 认 证 企 业
Q C 0 8 0 0 0 0 认 证 企 业
I A T F 1 6 9 4 9 认 证 体 系
Sales Contact
sls01@beterfuse.com
Technical Support 
Kenny@betterfuse.com
Time vs Current Characteristics:IEC60127
Rated Current 125% 200% 275% 400% 1000%
0.5A~10A
>1h
<120s / / 100ms~1s
12A~20A
>1h
<120s 750ms~80s 150ms~5s 100ms~1s
25A >1h <120s
/
/ <1s
Conventional products are braided products,
and refer to EPS specification for details.
Electrical Characteristics at 25
Amp
Code
Rated
Current
Rated
Voltage
Voltage Drop
Max(mV)
Power
Dissipation
Max(mW)
Breaking
Capacity
Typical Cold
Resistance
(m)
Melting
I²TA²s
Approvals
cURus CQC TUV
0500 500mA
125V AC
250V AC
300V AC
400V AC
600 500
300A@125V AC
300A@250V AC
300A@300V AC
300A@400V AC
270 4.15 ●●
0630 630mA 500 500 261 5.49 ●●
1100 1.00A 400 500 148 18.6 ●●
1125 1.25A 300 1000 109 27.0 ●●
1160 1.60A 300 1000 74.19 52.6 ●●
1200 2.00A 300 1000 50.6 89.7 ●●
1250 2.50A 300 1200 35.05 137 ●●
1315 3.15A 300 1500 26.08 237 ●●
1400 4.00A 300 2000 19.5 400 ●●
1500 5.00A 300 2500 14.4 800 ●●
1630 6.30A 300 3000 11.75 1027 ●●
1800 8.00A 220 3000 8.55 1087 ●●
2100 10.00A 220 3500 5.82 1399 ●●
2125 12.50A 220 4000 4.16 1919 ●●
2150 15.00A 220 4000 3.01 2596 ●○
2160 16.00A 220 4000 2.72 3205 ●●
2200 20.00A 220 4000 2.23 6413 ●●
2250 25.00A
125V AC
250V AC
220 4000 300A@125V/250V AC 1.42 2812 ●○