X201.285.01

Circuit Breaker Accessory, 3/8" Thread Switch, Water Splash Cover

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: ETA
Product type: Circuit Breaker Accessories
For Use With:3/8" Thread Switch; Accessory Type:Water Splash Cover; Product Range:-; SVHC:No SVHC (15-Jan-2018)
SVHC: No SVHC (17-Jan-2022)
For Use With: 3/8" Thread Switch
Product Range: -
Accessory Type: Water Splash Cover

Delivery and price
Units per pack	2000
Price	2.08 €
Current stock	50+
Lead time	30 days

Datasheet

**2** 

# **Thermal Overcurrent Circuit Breaker 1658-...** 

## **Description** 

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. 

- l Manual reset, cycling trip free mechanism 

- l Extremely small and lightweight 

l UL, CSA, VDE and EN 60934 (IEC 60934) approved 

## **Typical applications** 

Battery chargers, consumer products, power supplies, motors. 

## **Ordering information** 

**==> picture [35 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
1658-...<br>**----- End of picture text -----**<br>


**Type No. 1658** single pole thermal circuit breaker **Threadneck design G21** manual reset type, 3/8“-27 threadneck **A00** auto reset type, without threadneck **Hardware 00** no hardware **01** one PAL nut Y306 671 01, bulk **02** one PAL nut Y306 671 01, one knurled nut Y307 117 02, bulk **Terminals P10** blade terminals A6.3-0.8 (QC .250) **P13** blade terminals A6.3-0.8 (QC .250), 90° **Current ratings 5 ...30 A** ~~—_~~ **1658 - G21 - 02 - P10  - 5  A** Ordering example * Screws and lock washers bulk shipped 

## **Packaging unit: minimumorder 250 pieces** 

## **Preferred types** 

|**Preferred types**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|**Standard current ratings (A)**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
||**5**|**6**|**7**|**8**|**9**|**10 **|**12 **|**15 **|**16 **|**20 **|**25 **|**30**|
|1658-G21-02-P10-|x|x|x|x|x|x|x|x|x|x|x|x|
|1658-G21-02-P13-|x|x|x|x|x|x|x|x|x||||
|1658-A00-00-P10-|x|x|x|x|x|x|x|x|x||||



## **Standard current ratings and typical voltage drop values** 

|**Current**<br>**rating (A)**|**voltage drop**<br>**values (mV)**|**Current**<br>**rating (A)**|**voltage drop**<br>**values (mV)**|
|---|---|---|---|
|5|≤ 250|12|≤ 250|
|6|≤ 250|15|≤ 250|
|7|≤ 250|16|≤ 250|
|8|≤ 250|20|≤ 250|
|9|≤ 250|25|≤ 250|
|10|≤ 250|30|≤ 250|



## **Technical data** 

|**For further detailsplease see chapter: Technical Information**<br>Voltage ratingAC 240 V;DC 28 V<br>Current ratings<br>5...30 A<br>Typical life<br>AC + DC<br>5...16 A<br>1,000 operations at 2 x IN, inductive<br>17...25 A<br>1,000 operations at 2 x IN,resistive<br>Behaviour at rated<br>switching capacity<br>(EN 60934;<br>test sequence D)<br>operat.<br>IN<br>UN<br>40<br>5...16 A<br>AC 240 V<br>6 x INind<br>40<br>5...16 A<br>DC 28 V<br>4 x INind|**For further detailsplease see chapter: Technical Information**<br>Voltage ratingAC 240 V;DC 28 V<br>Current ratings<br>5...30 A<br>Typical life<br>AC + DC<br>5...16 A<br>1,000 operations at 2 x IN, inductive<br>17...25 A<br>1,000 operations at 2 x IN,resistive<br>Behaviour at rated<br>switching capacity<br>(EN 60934;<br>test sequence D)<br>operat.<br>IN<br>UN<br>40<br>5...16 A<br>AC 240 V<br>6 x INind<br>40<br>5...16 A<br>DC 28 V<br>4 x INind|**For further detailsplease see chapter: Technical Information**<br>Voltage ratingAC 240 V;DC 28 V<br>Current ratings<br>5...30 A<br>Typical life<br>AC + DC<br>5...16 A<br>1,000 operations at 2 x IN, inductive<br>17...25 A<br>1,000 operations at 2 x IN,resistive<br>Behaviour at rated<br>switching capacity<br>(EN 60934;<br>test sequence D)<br>operat.<br>IN<br>UN<br>40<br>5...16 A<br>AC 240 V<br>6 x INind<br>40<br>5...16 A<br>DC 28 V<br>4 x INind|**For further detailsplease see chapter: Technical Information**<br>Voltage ratingAC 240 V;DC 28 V<br>Current ratings<br>5...30 A<br>Typical life<br>AC + DC<br>5...16 A<br>1,000 operations at 2 x IN, inductive<br>17...25 A<br>1,000 operations at 2 x IN,resistive<br>Behaviour at rated<br>switching capacity<br>(EN 60934;<br>test sequence D)<br>operat.<br>IN<br>UN<br>40<br>5...16 A<br>AC 240 V<br>6 x INind<br>40<br>5...16 A<br>DC 28 V<br>4 x INind|
|---|---|---|---|
||40|17...25 A<br>AC 240 V|120 A|
||||resistive|
||40|17...25 A<br>DC 28 V|120 A|
||||resistive|
|Ambient temperature||-20...+60 °C  (-4...+140 °F),||
|||≤7 A max. +40 °C(+104 °F)||
|Insulation co-ordination||rated impulse           pollution||
|(IEC 60664 and 60664 A) withstand voltage       degree|(IEC 60664 and 60664 A) withstand voltage       degree|(IEC 60664 and 60664 A) withstand voltage       degree<br>2.5 kV                    2|2.5 kV                    2|
|||reinforced insulation in operatingarea||
|Dielectric strength<br>(IEC 60664 and 60664A)   test voltage||(IEC 60664 and 60664A)   test voltage||
|||operatingarea<br>AC 3,000 V||
|Insulation resistance          > 100 MΩ|Insulation resistance          > 100 MΩ|Insulation resistance          > 100 MΩ(DC 500 V)||
|Interrupting capacity Icn||5...7 A<br>180 A||
|||8...30 A<br>200 A||
|Interrupting capacity||IN<br>UN||
|(UL 1077/EN 60934 PC1) 5...16 A||(UL 1077/EN 60934 PC1) 5...16 A<br>AC 240 V 2,000 A||
|||5...30 A<br>AC 120 V 2,000 A||
|||5...30 A<br>DC 32 V<br>2,500 A||
|||5...30 A<br>DC 28 V<br>2,000 A(1658-A..)||
|Degree of protection||operating area IP40||
|(IEC 60529/DIN 40050)||terminal area IP00||
|Vibration                            8 g (57-500 Hz) ± 0.61 mm (10-57 Hz),|Vibration                            8 g (57-500 Hz) ± 0.61 mm (10-57 Hz),|Vibration                            8 g (57-500 Hz) ± 0.61 mm (10-57 Hz),|Vibration                            8 g (57-500 Hz) ± 0.61 mm (10-57 Hz),|
|to IEC 60068-2-6, test Fc,|to IEC 60068-2-6, test Fc,|to IEC 60068-2-6, test Fc,||
|||10 frequencycycles/axis||
|Shock                                30 g (11 ms)|Shock                                30 g (11 ms)|Shock                                30 g (11 ms)||
|||to IEC 60068-2-27,test Ea||
|Corrosion                          96 hours at 5 % salt mist,<br>to IEC 60068-2-11|Corrosion                          96 hours at 5 % salt mist,<br>to IEC 60068-2-11|Corrosion                          96 hours at 5 % salt mist,<br>to IEC 60068-2-11,test Ka||
|Humidity                           240 hours at 95 % RH|Humidity                           240 hours at 95 % RH|Humidity                           240 hours at 95 % RH||
|to IEC 60068-2-78|to IEC 60068-2-78|to IEC 60068-2-78,test Cab||
|Mass                                 a|Mass                                 a|Mass                                 approx. 16g||



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## **Thermal Overcurrent Circuit Breaker 1658-...** 

**2** 

## **Dimensions** 

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ø6<br>.236<br>1 2<br>17.5<br>.689<br>15.7<br>.618<br>32<br>1.26<br>A00<br>G21 tightening torque max. 0.8 Nm<br>3/8-27UNS-2A<br>OFF ON<br>6 1 .039 0.7 .028 12.7 .500<br>.236<br>27 1.06<br>12 .472<br>14 .551 13.6 .535<br>4<br>.157<br>**----- End of picture text -----**<br>


See ordering information for mounting hardware. 

## **Terminal design** 

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**----- Start of picture text -----**<br>
P10 P13<br>1 2 1 2<br>8.5<br>.335<br>blade terminals DIN 46244-A6.3-0.8 (QC .250)<br>blade terminals DIN 46244-A6.3-0.8 angled 90°<br>(QC .250)<br>3<br>.118<br>12 .472<br>**----- End of picture text -----**<br>


## **Installation drawing** 

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Internal connection diagram<br>1<br>2<br>**----- End of picture text -----**<br>


## **Typical time/current characteristics** 

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**----- Start of picture text -----**<br>
10000 +60 °C<br>+140 °F<br>+23 °C<br>+73.4 °F<br>-20 °C<br>-4 °F<br>1000<br>100<br>10<br>1<br>0.1<br>1 2 4 6 8 10 20 40<br>… times rated current<br>Trip time in seconds<br>**----- End of picture text -----**<br>


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 Technical information. 

|Ambient temp. °F<br>Ambient temp. °C|-4<br>-20|+14<br>-10|+32<br>0|+73.4<br>+23|+104<br>+40|+122<br>+50|+140<br>+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|-|-|



**==> picture [249 x 171] intentionally omitted <==**

**----- Start of picture text -----**<br>
operating area<br>1 2<br>5 5 4 4<br>.197 .197 .157 .157<br>mounting area<br>7 .276<br>34 1.34<br>**----- End of picture text -----**<br>


This is a metric design and millimeter dimensions take precedence ~~(~~[mm ] inch ~~)~~ 

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**Thermal Overcurrent Circuit Breaker 1658-...** 

**2** 

## **Accessories** 

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PAL nut 3/8", 27-thread<br>Y 306 671 01<br>**----- End of picture text -----**<br>


**==> picture [117 x 76] intentionally omitted <==**

**----- Start of picture text -----**<br>
14.3 2.5<br>.563 .098<br>0.5<br>.020<br>3/8-27UNS-2B<br>**----- End of picture text -----**<br>


**Knurled nut 3/8", 27-thread plastic (standard) Y 307 117 02** 

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**----- Start of picture text -----**<br>
ø15 3<br>.591 .118<br>3/8-27UNS-2B<br>**----- End of picture text -----**<br>


**Knurled nut 3/8", 27-thread nickel-plated brass Y 300 190 03** 

**==> picture [95 x 68] intentionally omitted <==**

**----- Start of picture text -----**<br>
ø13 2.5<br>.512 .098<br>3/8-27UNS-2B<br>**----- End of picture text -----**<br>


**==> picture [249 x 117] intentionally omitted <==**

**----- Start of picture text -----**<br>
Reset button seal for  3/8", 27-thread,<br>short long<br>X 201 285 01  (IP64) X 200 799 01  (IP64)<br>3/8-27 UNS-2B 3/8-27 UNS-2B<br>**----- End of picture text -----**<br>


## **Panel cut out** 

**==> picture [81 x 7] intentionally omitted <==**

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1658-3/8-27  UNS-2A<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Ø 9,6<br>9<br>**----- End of picture text -----**<br>


## **Approvals** 

|**Approvals**|||
|---|---|---|
|**Authority**|**Voltage ratings**|**Current ratings**|
|VDE (EN 60934)|AC 240 V; DC 28 V|5...25 A|
|UL|AC 240 V<br>AC 120 V<br>AC 120 V<br>DC 32 V<br>DC 28 V|5...16 A_1658-G.._<br>18...30 A_1658-G.._<br>5...30 A_1658-A.._<br>5...30 A_1658-G.._<br>5...30 A_1658-A.._|



**Hex nut 3/8", 27-thread nickel-plated brass Y 300 192 01** 

**==> picture [95 x 69] intentionally omitted <==**

**----- Start of picture text -----**<br>
3/8-27UNS-2B 2.5<br>.098<br>SW14<br>.551<br>**----- End of picture text -----**<br>


**Press to Reset Plate for 3/8" thread, aluminium Y 301 059 02** 

**==> picture [107 x 97] intentionally omitted <==**

**----- Start of picture text -----**<br>
ø21.4 0.4<br>.843 .016<br>ø9.9<br>.390<br>T<br>B<br>O<br>RE<br>S<br>®<br>S R<br>A<br>E<br>A<br>E<br>- K<br>S<br>T<br>R<br>E<br>E<br>-<br>P T<br>E R<br>**----- End of picture text -----**<br>


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. 

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Updated at June 9, 2026

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