# Thermostat Switch, Thermal Cut Out, 52N Series, 225 °C, Normally Closed, Flange Mount

![Product image](https://novapart.co/image/farnell:732461/)

**URL**: https://novapart.co/products/52N12T044(225/175)/thermostat-switch-thermal-cut-out-52n-series-225-c
**SKU**: 52N12T044(225/175)
**Manufacturer**: MULTICOMP PRO
**Category**: Sensors & Transducers || Sensors || Temperature Sensors || Thermostat Switches
**Price**: €2.6300
**Stock**: 100+
**Lead Time**: 78 days (indicative)

## Description

Switching Temperature:225°C; Reset Temperature:175°C; Contact Operation:Normally Closed; Sensor Terminals:Quick Connect; Sensor Housing:Flange Mount; Contact Rating:125VAC/15A, 250VAC/10A; Prod

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Product Range | - |
| Contact Rating | 125VAC/15A, 250VAC/10A |
| Sensor Housing | Flange Mount |
| Sensor Terminals | Quick Connect |
| Contact Operation | Normally Closed |
| Reset Temperature | 175°C |
| Switching Temperature | 225°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:732461/)

## **Thermal cut-out Thermostat** 

## **Applications** 

- Household appliances 

- Electronics 

- Machinery 

## **Benefits** 

- Up to 100,000 cycles 

- Various terminals on-hand 

- Small tolerances and hysteresis available 

- Response temperatures from 0°C up to 260°C 

## **Specifications:** 

**Technical data** 

|**Technical data**<br>|~~eeeeeeees~~|~~eeeeeeees~~|~~eeeeeeees~~|~~eeeeeeees~~|~~ee~~<br>~~ees~~|~~ee~~<br>~~ees~~||
|---|---|---|---|---|---|---|---|
|**Control**<br>**Type**<br>**Ratings**<br>~~a~~|**R28**<br>~~aeeeeeeees~~||||**R27**<br>~~ee~~<br>~~ees~~||**R29**<br>**23EN**|
||**11EN**<br>~~aee~~|**03EN**<br>~~ee~~|**52N**<br>~~ee~~|**60EN**<br>**1)**<br>~~ees~~|**05EN**<br>~~ee~~|**15N**<br>~~ees~~||
|Function<br><br>~~se~~|Automatic<br>~~ee ee ee ees ~~<br>~~se~~||||Manual<br> ~~ee~~<br>~~ees~~<br>~~se~~|||
|Version<br>~~se~~<br>~~Pf~~|Normallyclosed / Normallyopen<br>~~se~~<br>~~Pf~~<br>~~|~~<br>~~|~~||||Normallyclosed<br>~~se~~|||
|Rated current at<br>250 V AC ( cos φ<br>0,95)<br>~~Pf~~|16A<br>~~Pf~~<br>~~|~~|16A<br>~~|~~|16A|16A|16 A|16 A|16 A|
|SwitchingCycles<br>~~Pf~~<br>~~QQ~~<br>~~Pf~~|10,000<br>~~Pf~~<br>~~|~~<br>~~QQ~~<br>~~Pf~~<br>~~tf~~|10,000<br>~~|~~<br>~~QQ~~<br>~~tf~~<br>~~|~~|10,000<br>~~QQ~~|10,000<br>~~QQ~~|6,000<br>~~QQ~~|6,000<br>~~QQ~~|3,000<br>~~QQ~~|
|Temperature<br>Range TA (steps<br>in 5 K)<br>~~Pf~~<br>~~Pf~~|0°C to<br>150°C<br>~~Pf~~<br>~~tf~~<br>~~Pf~~<br>~~tf~~|0°C to<br>150°C<br>~~tf~~<br>~~|~~<br>~~tf~~<br>~~|~~|0°C to<br>230°C2)<br>~~tt~~|0°C to<br>150°C<br>~~tt~~|0°C to<br>150°C<br>~~tt~~|0°C to<br>250°C<br>~~tt~~|0°C to<br>150°C<br>~~tt~~|
|Rated Current at<br>250 Vac ( cos φ<br>1,0)<br>~~Pf~~<br>~~Pf~~<br>~~Pf~~|10A<br>~~Pf~~<br>~~tf~~<br>~~Pf~~<br>~~tf~~<br>~~Pf~~|10A<br>~~tf~~<br>~~|~~<br>~~tf~~<br>~~|~~<br>~~Gs~~|10A<br>~~tt~~<br>~~QQ~~|-<br>~~tt~~<br>~~QQ~~|10A<br>~~tt~~<br>~~QQ~~|10A<br>~~tt~~|10A<br>~~tt~~|
|Switchingcycles<br>~~Pf~~<br>~~ee~~<br>~~Pf~~|100,000<br>~~Pf~~<br>~~tf~~<br>~~ee~~<br>~~Pf~~<br>~~tf~~|100,000<br>~~tf~~<br>~~|~~<br>~~ee~~<br>~~Gs~~<br>~~tf~~<br>~~ft~~|100,000<br>~~tt~~<br>~~ee~~<br>~~QQ~~<br>~~ftff~~|-<br>~~tt~~<br>~~ee~~<br>~~QQ~~<br>~~ff~~|6,000<br>~~tt~~<br>~~ee~~<br>~~QQ~~|6,000<br>~~tt~~<br>~~ee~~|6,000<br>~~tt~~<br>~~ee~~|
|Temperature<br>Range TA ( steps<br>in 5K)<br>~~Pf~~|0°C to<br>150°C<br>~~Pf~~<br>~~tf~~|0°C to<br>150°C<br>~~Gs~~<br>~~tf~~<br>~~ft~~|0°C to<br>230°C<br>~~QQ~~<br>~~ftff~~|-<br>~~QQ~~<br>~~ff~~|0°C to<br>150°C<br>~~QQ~~|0°C to<br>250°C|0°C to<br>150°C|
|Tolerance<br>~~Pf~~|Ta <100°C: ± 3K / Ta >100°C: ± 4K / Ta >140°C: ± 5K<br>~~Gs QQ~~<br>~~Pf~~<br>~~tf~~<br>~~ft ff~~|||||||
|Contact Resist-<br>ance<br>~~a ee~~<br>~~a~~|<30mΩ<br>~~ee~~<br>~~ee~~|||||||
|Hysteresis / Reset<br>Temperature<br>~~a~~|Ta <100°C: 10K ±4K / Ta >100°C: 15K ±5K /<br>Ta >140°C : 20 K ± 5 K<br>~~ee~~||||Customer-Specific|||



**Note :[1)]** not approved **[2)]** type R28 55H up to 260°C 

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## **Thermal cut-out Thermostat** 

|**Illustration**<br>~~ee~~|**Drawing**<br>**Dimensions(mm)**<br>~~ee~~|**Type**<br>~~ee~~|**nc**<br>~~ee~~|**no**<br>~~ee~~|**Code**|**Technical**<br>**Description**|
|---|---|---|---|---|---|---|
|~~ee~~<br><a<br>~~EVE~~|~~ee ~~<br>Ei<br>~~EVE~~|R28 11EN<br> ~~ee ~~<br>~~EVE~~|1<br> ~~ee~~<br>~~EVE~~|3<br>~~ee~~<br>~~EVE~~|Standard<br>Dielectric<br>Strength<br>2,000V AC<br>~~EVE~~|Terminals 6.3 x 0.8,<br>housing thermosetting<br>plastic 9mm, moving<br>bracket small, cap<br>aluminium<br>~~EVE~~|
|a<br>~~EVE~~<br>~~|S]~~|“LT<br>~~EVE~~<br>~~|S]~~|R28 03EN<br>~~EVE~~<br>~~|S]~~|1<br>~~EVE~~<br>|3<br>~~EVE~~<br>~~|~~|Standard<br>Dielectric<br>Strength<br>2,000V AC<br>~~EVE~~<br>~~|~~|Terminals 6.3 x 0.8,<br>housing thermosetting<br>plastic 12mm,<br>moving bracket small,<br>capaluminium<br>~~EVE~~<br>~~|~~|
|~~Se|S]~~|~~|S]~~<br>~~ei~~|R28 52N<br>~~|S]~~<br>~~eiiy~~|1<br><br>~~iy~~|3<br>~~|~~<br>~~iy~~|Standard<br>Dielectric<br>Strength<br>2,000V AC<br>~~|~~<br>~~iy|~~|Terminals 6.3 x 0.8,<br>housing ceramic<br>12mm, moving bracket<br>small, capaluminium<br>~~|~~<br>~~|~~|
|~~|S]~~<br><<br>~~el~~|~~|S]~~<br>——<br>~~el~~<br>~~ei~~|R27 05EN<br>~~|S] ~~<br>~~el~~<br>~~eiiy~~|1<br> <br>~~el~~<br>~~iy~~|-<br> ~~|~~<br>~~el~~<br>~~iy~~|Manual<br>Dielectric<br>Strength<br>1,800V AC<br>~~|~~<br>~~el~~<br>~~iy|~~|Terminals 6.3 x 0.8,<br>housing thermosetting<br>plastic, moving bracket<br>small, cap aluminium,<br>resetpin<br>~~|~~<br>~~el~~<br>~~|~~|
|>|~~ei~~|R27 15N<br>~~ei iy~~|1<br>~~iy~~|-<br>~~iy~~|Manual<br>Dielectric<br>Strength<br>1,800V AC<br>~~iy |~~|Terminals 6.3 x 0.8,<br>housing ceramic,<br>moving bracket small,<br>cap aluminium, reset<br>pin ceramic<br>~~|~~|
|||R29 23EN<br>~~eH~~|1<br>~~eH~~|-<br>~~eH~~|Manual<br>Dielectric<br>Strength<br>2,000V AC<br>~~eH~~|Terminals 6.3 x 0.8,<br>housing thermosetting<br>plastic, moving bracket<br>small, cap aluminium,<br>resetpin<br>~~eH~~|
|~~Se~~||R28 60EN<br><br>|1<br><br>|3<br><br>|Tight<br>Against<br>Humidity<br>Dielectric<br>Strength<br>1,800V AC<br><br>|Lead wire 1.25mm2,<br>housing thermosetting<br>plastic, fix bracket, cap<br>aluminium, degree of<br>protection IP54<br>~~|~~<br>|
|weini<br>~~Se~~|weini~~til~~<br>|R27, R28,<br>R29<br>~~til~~<br>|-<br>~~til~~<br>|-<br>~~til~~<br>|4<br>~~til~~<br>|Moving Bracket, Small<br>~~til|~~<br>|
|~~Se ~~|~~8 FF~~|R27, R28,<br>R29<br><br>~~FF~~|-<br><br>~~FF~~|-<br><br>~~FF~~|3<br><br>~~FF~~|Moving Bracket<br>~~|~~<br>~~FF~~|



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## **Thermal cut-out Thermostat** 

|**Illustration**|**Drawing**<br>**Dimensions(mm)**|**Type**|**nc**|**no**|**Code**|**Technical**<br>**Description**|
|---|---|---|---|---|---|---|
||owe~~3~~<br>Cr<br>z=<br>a<br>[ins|R27, R28,<br>R29|-|-|S|Stud of<br>M5 x 6 brass, SW17<br>(also other variations<br>available)|
||3,2<br>3,2 x 4,2<br>pea<br>[mw]|R27, R28,<br>R29|-|-|B (+A)|Fix Bracket<br>possible angles:<br>0 / 45 / 90 / 135 deg|
||eeeLe<br>gp<br>OL|R27, R28,<br>R29|-|-|Brass: 03 (0 deg)<br>Brass: 09 (45 deg)<br>Brass: 04 (90 deg)<br>Steel: 93 (0 deg)<br>Steel: 94 (90 deg)|Terminals 6.3 x 0.8<br>brass nickel plated up<br>to Ta max. 150°C<br>>150°C steel nickel<br>plated also available:<br>angle 45 / 90 deg|
||st<br>(15,5)<br>-|R27, R28,<br>R29|-|-|Brass: 05 (0 deg)<br>Brass: 10 (45 deg)<br>Brass: 06 (90 deg)<br>Steel: 95 (0 deg)<br>Steel: 96 (90 deg)|Terminals 4.8 x 0.5<br>Brass nickel plated<br>up to Ta max. 150°C<br>>150°C steel nickel<br>plated also available:<br>angle 45 / 90 deg|
||@ 4)<br>,|R27, R28|-|-|00|Solder Terminals|
|||R27, R28|-|-|SA|PCB terminals<br>Solder terminals|
||(27.5)<br>(15.5)<br>OU|R27, R28,<br>R29|-|-|41 (0 deg)<br>42 (90 deg)|Solder terminals, nickel<br>plated, also available:<br>angle 90 deg|
||st<br>|<br>(15.5)<br>1<br>rt<br>cH<br>gy|R27, R28,<br>R29|-|-|Brass: 45 (0 deg)<br>Brass: 46 (90 deg)|Terminals 4.8 x 0.8<br>brass nickel plated up<br>to Ta max.150°C also<br>available: angle 90 deg|



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## **Thermal cut-out Thermostat** 

## **Caps** 

Cap in standard execution (code 1), material aluminium. 

Cap for low temperature applications (up to 50°C) and normally open types (code T), material aluminium 

Deviations from standard controls (caps, terminals, fixings) on request. 

Especially for electronic applications with voltage 6 to 120V AC / 6 to 30V DC and current 10 to 100mA, there are switches with crossbar- contacts available. 

Controls as single operation device (SOD) up to 150°C and reset temperature -35°C are available (type 81ES). 

## **General Diagram** 

|**No.**|**Name**|**Material**|
|---|---|---|
|1|Cap|Aluminium|
|2|Bimetal|-|
|3|Case|Ceramic|
|4|Retainer|Ceramic|
|5|Pin|Ceramic|
|5<br>6|Pin<br>Stationaryarm|Ceramic<br>Copper Alloy|
|7|Movable arm|Copper Alloy|
|8|Contact|Silver-Nickel Alloy|
|9|Contact|Silver-Nickel Alloy|
|10|Rivet|Steel|
|11|Terminal|Steel|
|12|Bracket|Stainless Steel|



Dimensions : Millimetres 

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## **Thermal cut-out Thermostat** 

## **Ordering and marking example** 

## **Ordering example** 

**==> picture [512 x 107] intentionally omitted <==**

**----- Start of picture text -----**<br>
03 E N 1 5 T 03 4 50±3 50±3<br>Base  European  Type of contact  Contact execution  Housing   Cap Code Terminal  Fixing  Response  Reset<br>Type version (N normal  (1 normally   material   Code Code Temperature Temperature<br>contact / P low  closed / 3   (2 ceramic /<br>current) normally open) 5 plastic)<br>**----- End of picture text -----**<br>


**Marking example** A100 norm. closed (B norm. open) response temperature 03EN XXXX type manufacture code XXXX date of manufacture 

**Important Notice :** This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019. 

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- [Supplier page](https://es.farnell.com/multicomp-pro/52n12t044-225-175/thermal-switch-nc-225-c/dp/732461)
---

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