# Frost protection thermostat — A2G-65

> Frost protection thermostat for air-side temperature monitoring to prevent frost damage in HVAC systems with automatic and manual reset.

- Catalog code: a2g_65
- Model: A2G-65
- Category: Temperature measurement › Temperature switches
- Product page: https://avigan.com.ua/wika/en/products/a2g_65
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

This frost protection thermostat prevents damage to water heating coils and HVAC systems. With an SPDT switch, a variety of frost protection features are ...

## Applications

- For air-side temperature monitoring and prevention of frost damage to water/air heating coils in ventilation and air-conditioning systems

## Special features

- Simple mounting
- Compact and heavy-duty version
- High reproducibility
- Integrated switching output
- With automatic resetting

## Specifications

| Parameter | Value |
|---|---|
| model | A2G-65 |
| product family | A2G |
| short description | Frost protection thermostat for air-side temperature monitoring to prevent frost damage in HVAC systems with automatic and manual reset. |
| subcategory | Frost protection thermostat |
| certifications | RoHS; WEEE; EMC; CE |
| ambient temp | -30 … 70 °C |
| ip rating | IP65 |
| languages in datasheet | en |
| temperature ranges | -10 … 12 °C |
| sensor type | bimetal |
| probe length mm | 600 |
| probe material | Copper |
| has thermowell | false |
| process temp | -8 … 70 °C |
| output signal | Change-over contact, max. AC 250 V, max. 10 A; Change-over contact, max. AC 250 V, 10 A; change-over contact, max. AC250V, max. 10A |
| electrical connection | Screw terminal, max. 2.5 mm2 |
| accuracy class | ±0.5 °C |

## Datasheet tables

| Basic information | 2 |
|---|---|
| Setting range for set point,W | -10 …+12 °C [14 ... 53,6 °F] (factory setting: 5 °C [41 °F]) |
| Switch differential | 2 ±1 °C [3,6 ±1,8 °F], SD |
| Reproducibility | ±0.5 °C [±0,9 °F] |
| Probe response length | Approx. 600 mm[23.62 in] |
| Capillary tube | ■ Material: Copper ■ Capillary tube filling:R 507 |
| Capillary tube length | ■ 1.8 m[70.86 in], with probe cartridge ■ 3 m[118.11 in] ■ 6 m[236.22 in] ■ 12 m[472.44 in] |
| Switching output | ■ Change-over contact, max.AC 250 V, max. 10 A ■ Contact material: Ag/Ni (90 %/10 %) gold-plated 3 µm [118 µin] |
| Resetting | ■ Automatic ■ Manual |
| Connection terminal | Screw terminal, max.2.5mm 2 |
| Cable entry | Cable gland M16 x 1.5 |
| Case material |  |
| Lower body | PA GK30 |
| Cover | ABS transparent |
| Standard accessories | Mounting clamps, 6 pieces |
| Operating conditions |  |
| Medium temperature range | ■ Min. operating temperature:W + min. 2 °C [3,6 °F] ■ Max. operating temperature: 70 °C [158 °F] |
| Ambient temperature range | -30 …70°C[-22 ... 158 °F] |
| Humidity | 0 ... 85 %relative humidity (non-condensing) |
| Ingress protection | IP65 |

| Description | Region |
|---|---|
| EU declaration of conformity | European Union |
| EMCdirective |  |
| RoHS conformity |  |
| WEEE directive |  |

### Certificates

| Certificates | 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy) |
|---|---|

## Documents

- [ds_te6292_en_en_550648](https://avigan.com.ua/wika/docs/wika/ds_te6292_en_en.pdf) — PDF, 1647 KB, en