# Thermal Circuit Breaker, 1658, 25 A, 1 Pole, 28 VDC, 250 VAC, Panel
**URL**: https://novapart.co/products/1658-G21-02-P10%2025A/thermal-circuit-breaker-1658-25-a-1-pole-28-vdc
**SKU**: 1658-G21-02-P10 25A
**Manufacturer**: ETA
**Category**: Circuit Protection || Circuit Breakers || Thermal Circuit Breakers
**Price**: €3.2100
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| No. Of Poles | 1 Pole |
| Product Range | 1658 |
| Current Rating | 25A |
| Voltage Rating Vac | 250VAC |
| Voltage Rating Vdc | 28VDC |
| Circuit Breaker Mounting | Panel |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:9540687/)
|**Thermal Overcurrent Circuit Breaker 1658-...**|**Thermal Overcurrent Circuit Breaker 1658-...**|**Thermal Overcurrent Circuit Breaker 1658-...**|**Thermal Overcurrent Circuit Breaker 1658-...**||
|---|---|---|---|---|
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|**1**
**Description**
**Typical applications**
**Ordering information**
**Technical data**
Very cost effective design to meet international requirements. No
exposed metal parts which are, or could become, current-carrying
except for terminals. R-type TO CBE to EN 60934.
GManual reset, cycling trip free mechanism
GExtremely small and lightweight
GUL, CSA, VDE and EN 60934 (IEC 60934) approved
Battery chargers, consumer products, power supplies, motors.
**1658-...**
**Type No.**
**For further details please see chapter: Technical Information**
~~a,~~|||||
|**1658**
singlepole thermal circuit breaker
**Threadneck design**||Voltage rating|AC 240 V;DC 28 V||
|**G21** manual reset type,3/8"-27 threadneck||Current ratings|5...30 A||
|**G41** manual reset type,7/16"-28 threadneck||Typical life|||
|**A21** auto reset type,3/8"-27 threadneck||AC + DC
5...16 A|1,000 operations at 2 x IN, inductive||
|**A41** auto reset type,7/16"-28 threadneck||17...25 A|1,000 operations at 2 x IN,resistive||
|**A00** auto reset type,without threadneck
**F01** snapin
**Hardware**||Ambient temperature|-20...+60 °C (-4...+140 °F),
≤7 A max. +40 °C(+104 °F)||
|**00**
no hardware||Insulation co-ordination|rated impulse
pollution||
|**01**
one PAL nut,bulk||(IEC 60664 and 60664 A)|withstand voltage degree||
|**02**
one PAL nut,one knurled nut,bulk|||2.5 kV
2||
|**03**
one PAL nut mounted|||reinforced insulation in operatingarea||
|**04**
one PAL nut,one knurled nut,mounted||Dielectric strength|||
|**05**
one PAL nut mounted,one knurled nut,bulk||(IEC 60664 and 60664A)|test voltage||
|**06**
one knurled nut,bulk||operatingarea|AC 3,000 V||
|**07**
one hex nut,bulk
**08**
two hex nuts,bulk||Insulation resistance > 100 MΩ|Insulation resistance > 100 MΩ(DC 500 V)||
|**Terminals**||Interrupting capacity Icn|5...7 A 180 A||
|**P10**
blade terminals A6.3-0.8(QC .250)|||8...30 A 200 A||
|**P13**
blade terminals A6.3-0.8(QC .250),90°||Interrupting capacity|IN
UN||
|**S80**
straight screw terminals*||(UL 1077/EN 60934 PC1)|5...16 A
AC 240 V 2,000 A||
|**S83**
90° bent screw terminals*|||18...30 A
AC 120 V 2,000 A||
|**Current ratings**|||5...30 A
DC 28 V 2,000 A||
|**5 ...30 A**||Degree of protection|operating area IP40||
|**1658 - G21 - 02 - P10 - 5 A**
Ordering example||(IEC 60529/DIN 40050)
Vibration 8 g (57-500 Hz) ±0.61 mm (10-57 Hz),|terminal area IP00
Vibration 8 g (57-500 Hz) ±0.61 mm (10-57 Hz),||
|* Screws and lock washers bulk shipped|||to IEC 60068-2-6, test Fc,
10 frequencycycles/axis||
|||Shock 30 g (11 ms)|Shock 30 g (11 ms)||
||||to IEC 60068-2-27,test Ea||
|||Corrosion 96 hours at 5 % salt mist,|Corrosion 96 hours at 5 % salt mist,||
||||to IEC 60068-2-11,test Ka||
|||Humidity 240 hours at 95 % RH|Humidity 240 hours at 95 % RH||
||||to IEC 60068-2-78,test Cab||
Mass approx. 16 g **Standard current ratings and typical voltage drop values Approvals Current Voltage Current Voltage Authority Voltage rating Current ratings rating (A) drop (mV) rating (A) drop (mV))** VDE (EN 60934) AC 240 V; DC 28 V 5...25 A 5 ≤150 12 ≤140 UL AC 240 V 5...16 A 1658-G... 6 ≤150 15 ≤240 AC 120 V 20...30 A 1658-G... 7 ≤150 16 ≤240 AC 120 V 5...30 A 1658-A... DC 28 V 5...30 A 1658-G... 8 ≤150 20 ≤240 ~~==~~ 9 ≤150 25 ≤240 ~~=~~ 10 ≤140 30 ≤240
05/06(280405)
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**Thermal Overcurrent Circuit Breaker 1658-...**
**1**
## **Dimensions**
## **Terminal design**
**==> picture [512 x 692] intentionally omitted <==**
**----- Start of picture text -----**
ø6 P10 S83
.236
1 2 1 2
8.5
.335
terminal screw lock washer
blade terminals DIN 46244-A6.3-0.8 6-32 UNC
1 2 (QC .250)
P13 P10-S83
17.5
.689
15.7 1 2 1 2
.618
8.5
.335 lock washer
32 blade terminals DIN 46244-A6.3-0.8 (QC .250)angled 90° terminal screw6-32 UNC
1.26
S80 blade terminalsDIN 46244-A6.3-0.8 (QC .250)
A00
1 2
A21 tightening torque max. 0.8 Nm
3/8-27UNS-2A mounting hole terminal screw
9.6-0.1 6-32 UNC lock washer
.378 -.004
Installation drawing
G21 tightening torque max. 0.8 Nm
3/8-27UNS-2A
operating area
1 2
mounting hole
A41 10 10.2 [±][0.1]
.394 .402 [±][.004] 5 5 4 4
.197 .197 .157 .157
mounting area
G41
10
.394
F01
ø6
.236
mounting hole
13.8 [+0.1] - 0.2
.543 +.004- .008
Caution:
Please keep a tight grip on the unit thickness 1- 3 mm
while removing the female connectors. .039 - .118 in.
See ordering information for mounting hardware.
This is a metric design and millimeter dimensions take precedence ( [mm ] inch )
OFF ON 3
.118
6 .236 0.5 .020 0.7 .028 12.7 .500 12 .472
27 1.06
12 .472
3
.118
14 .551 13.6 .535
12 .472
-0.1 -.004
8.9 .350
4 7
.157 .276
34 1.34
11.20.1± .441.004±
7/16-28UNS-2A double “D”
tightening torque max. 0.8 Nm
OFF
ON
6 .236 1 .039 12.7 .500 0.15 ± .006±
16 .630
**----- End of picture text -----**
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**Thermal Overcurrent Circuit Breaker 1658-...**
**1**
## **Internal connection diagram**
**==> picture [249 x 91] intentionally omitted <==**
**----- Start of picture text -----**
1
2
**----- End of picture text -----**
## **Typical time/current characteristics**
**==> picture [239 x 216] intentionally omitted <==**
**----- Start of picture text -----**
10000 +60 °C
+140 °F
+23 °C
+73.4 °F
-20 °C
-4 °F
1000
100
10
1
0.1
1 2 4 6 8 10 20 40
… times rated current
Trip time in seconds
**----- End of picture text -----**
The time/current characteristic curve depends on the ambient temperature prevailing. In order to eliminate nuisance tripping, please multiply the circuit breaker current ratings by the derating factor shown below. See also section 9 – Technical information. Ambient temperature °F -4 +14 +32 +73.4 +104 +122 +140 °C -20 -10 0 +23 +40 +50 +60 Derating factor IN > 7A 0.83 0.85 0.9 1 1.1 1.18 1.25 IN ≤7A 0.74 0.76 0.82 1 1.23 - -
## **Accessories**
**Mounting nut 3/8", 27-thread Mounting nut 7/16", 28-thread Y306 671 01 Y303 200 01**
**==> picture [232 x 74] intentionally omitted <==**
**----- Start of picture text -----**
14.3 2.5 16 3
.563 .098 .630 .118
0.5 0.5
.020 .020
3/8-27UNS-2B 7/16-28UNEF-2B
**----- End of picture text -----**
**Knurled nut 3/8", 27-thread plastic (standard) Y307 117 02**
**Knurled nut 7/16", 28-thread nickel-plated brass Y302 294 03**
**==> picture [212 x 67] intentionally omitted <==**
**----- Start of picture text -----**
ø15 3 ø16 3.2
.591 .118 .630 .126
3/8-27UNS-2B 7/16-28UNEF-2B
**----- End of picture text -----**
**Knurled nut 3/8", 27-thread nickel-plated brass Y300 190 03**
**==> picture [93 x 67] intentionally omitted <==**
**----- Start of picture text -----**
ø13 2.5
.512 .098
3/8-27UNS-2B
**----- End of picture text -----**
**Hex nut 3/8", 27-thread nickel-plated brass Y300 192 01**
**Hex nut 7/16", 28-thread nickel-plated brass Y302 295 01**
**==> picture [211 x 68] intentionally omitted <==**
**----- Start of picture text -----**
3/8-27UNS-2B 2.5 7/16-28UNEF-2B 2.5
.098 .098
SW14 SW14
.551 .551
**----- End of picture text -----**
**Press to Reset Plate for 3/8" Press to Reset Plate for 7/16" thread, aluminium thread, aluminium Y 301 059 02 Y 302 732 01**
**==> picture [219 x 96] intentionally omitted <==**
**----- Start of picture text -----**
ø21.4 0.4 ø24 0.4
.843 .016 .945 .016
ø9.9 ø11.2 [+0.7]
.390 .441 [+.028]
T
B
O T
B
O
RE RE
S S
®
R R
®
S
A A
E S
A A
E E E
- K - K
S S
T T
R R
E
E
E
E
- -
P T P
E R E R
T
**----- End of picture text -----**
This is a metric design and millimeter dimensions take precedence ~~(~~[mm ] inch ~~)~~
05/06(280405)
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**Thermal Overcurrent Circuit Breaker 1658-...**
**1**
## **Accessories**
**==> picture [249 x 256] intentionally omitted <==**
**----- Start of picture text -----**
Reset button seal for 3/8", 27-thread,
short long
X201 285 01 X200 799 01
3/8-27 UNS-2B 3/8-27 UNS-2B
Reset button seal for 7/16", 28-thread,
short long
X222 119 01 X222 119 02
7/16-28 UNS-2B 7/16-28 UNS-2B
**----- End of picture text -----**
This is a metric design and millimeter dimensions take precedence ~~(~~[mm ] inch ~~)~~
All dimensions without tolerances are for reference only. In the interest of improved design, performance and cost effectiveness the right to make changes in these specifications without notice is reserved.Product markings may not be exactly as the ordering codes. Errors and omissions excepted.
05/06(280405)
**www.e-t-a.com**
## Links
- [View this product on Novapart](https://novapart.co/products/1658-G21-02-P10%2025A/thermal-circuit-breaker-1658-25-a-1-pole-28-vdc)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/eta/1658-g21-02-p10-25a/circuit-breaker-25a/dp/9540687)
---
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