Temperature monitors and limiters

In order to ensure the protection of plant and product, people and the environment, monitoring limit values with (safety) temperature monitors and limiters is especially important in many technical plant areas. With electronic or electromechanical products by JUMO, you can operate your plant safely.

  • Product selection guide

Monitors & limiters

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JUMO safetyM STB/STW - Safety temperature limiter, safety temperature monitor according to DIN EN 14597

JUMO safetyM STB/STW
Safety temperature limiter, safety temperature monitor according to DIN EN 14597 Basic type: 701150
The device is primarily built to monitor thermotechnical processes accurately and switch the systems to a safe operating status in the event of malfunctions. As a result, risks to people, the environment, production facilities, and production goods can be identified and averted at an early stage.
  • AC 110 to 240 V; +10/-15 %; ACDC 20 to 30 V
  • 2 relay outputs
  • 1oo2D architecture
JUMO safetyM STB/STW Ex - Safety temperature limiters and monitors according to DIN EN 14597 and ATEX approval

JUMO safetyM STB/STW Ex
Safety temperature limiters and monitors according to DIN EN 14597 and ATEX approval Basic type: 701155
The compact and user configurable JUMO safetyM STB/STW Ex can enable early and reliable detection of risks in Ex areas which could potentially result in personal injuries, environmental damage, or destruction of the production facilities and production goods.
  • DIN EN14597, EX/IECEx, DNV, SIL/PL
  • 1oo2D structure
  • EN 13463 IPL 2
JUMO safetyM TB/TW - Temperature limiter/monitor

JUMO safetyM TB/TW
Temperature limiter/monitor Basic type: 701160
The JUMO safetyM TB/TW is a user programmable limiter/monitor. The universal measurement input is user configurable for RTD temperature probes, thermocouples, and current or voltage signals. TB/TWs are used to monitor thermal processes in plants for a set limit value.
  • Temperature up to max. 2495 °C
  • DIN EN 14597, cULus
  • Measurement input: Pt100, Pt1000
JUMO safetyM TB/TW08 - Temperature limiter/monitor according to DIN EN 14597

JUMO safetyM TB/TW08
Temperature limiter/monitor according to DIN EN 14597 Basic type: 701170
The JUMO safetyM TB/TW08 is a user programmable temperature limitation device. The measurement input is user configurable for RTD temperature probes, thermocouples, and current or voltage signals. TB/TWs are used to monitor thermal processes in plants for a set limit value.
  • 2 × Pt100
  • DIN EN 14597
  • Protection type on the front IP65
Topseller
Surface-mounted single thermostats - ATH series

Surface-mounted single thermostats
ATH series Basic type: 603021
The devices of the ATH series are available as temperature controllers (TR), temperature limiters (TB), temperature monitors (TW), safety temperature monitors (STW), and safety temperature limiters (STB). In the event of a malfunction the STB sets the system being monitored to a safe operating status.
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Max. control range: 20 to 500 °C
Topseller
Panel-mounted thermostat - EM series to 500 °C

Panel-mounted thermostat
EM series to 500 °C Basic type: 602021
The devices of the EM series are available as temperature controllers (TR), temperature monitors (TW), temperature limiters (TB), safety temperature monitors (STW), and safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status.
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Control range: up to 300 °C
Topseller
JUMO heatTHERM-AT and DR - Surface-mounted thermostat

JUMO heatTHERM-AT and DR
Surface-mounted thermostat Basic type: 603070
The JUMO heatTHERM-DR (design type 7+8) type is a specific variation with a special case bottom section for DIN rail or wall mounting. As a result, easy installation on mounting rails TH35 according to DIN EN 60715 (e.g. in control cabinets) is possible.
  • "Push-In®" terminal technology
  • Surface-mounted thermostat or DIN-rail thermostat
  • Max. control range up to 350 °C
Hot air thermostats - WTHc series

Hot air thermostats
WTHc series Basic type: 604514
The thermostats of the WTHc series are suitable for use in hot air systems according to DIN 4794 and consist of 3 separate measuring and switching systems with the following functions: temperature controller (TR), temperature monitor (TW), and safety temperature limiter (STB).
  • Max. capillary: 1250 mm
  • Max. control range: 20 to 80 °C
  • Protection type IP40 or IP54
Panel-mounted thermostats - EM series up to 650 °C

Panel-mounted thermostats
EM series up to 650 °C Basic type: 602025
The devices are available as temperature monitors (TW), temperature limiters (TB), and as safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status. Panel-mounted thermostats operate according to the liquid expansion principle.
  • Material: stainless steel
  • Max. capillary: 3000 mm
  • Control range: up to 650 °C
Panel-mounted thermostats - ETH series

Panel-mounted thermostats
ETH series Basic type: 602010
Panel-mounted thermostats from the ETH series monitor thermal processes. The devices are available as safety temperature monitors (STW) and safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status.
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Limit value range: 50 to 300 °C
Surface-mounted thermostats - AMTHF series

Surface-mounted thermostats
AMTHF series Basic type: 603051
The devices of AMTHF series are available with 2, 3, or 4 switching steps as temperature controllers (TR) and temperature monitors (TW). The sequence contact gap of the individual switching steps in Kelvin is adjusted in a fixed manner according to customer requirements per default.
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Max. control range: 50 to 300 °C
JUMO frostTHERM-AT/-DR - Frost protection thermostat

JUMO frostTHERM-AT/-DR
Frost protection thermostat Basic type: 604100
The product monitors the temperature in ventilation and air-conditioning systems. It has a small switching differential and a high level of reproducibility. The AT version allows mounting on the wall; the DR version is suitable for DIN-rail mounting.
  • Max. probe line length 12000 mm
  • Control range: -10 to +15 °C
  • Protection type (AT) up to IP65
JUMO frostTHERM-ATE - Electronic frost protection thermostat

JUMO frostTHERM-ATE
Electronic frost protection thermostat Basic type: 604170
The frost protection thermostat is used on the air part of air-conditioning systems, heat exchangers, heating registers, and similar units to protect them against frost damage and freezing. Applications include in building automation and the ventilation and air-conditioning industry.
  • Max. probe line length 6000 m
  • Control range: 1 to 10 °C
  • Protection type IP42
Exhaust gas temperature monitor - Type STM-RW-2

Exhaust gas temperature monitor
Type STM-RW-2 Basic type: 601540
The exhaust gas temperature monitor is used to monitor the exhaust gas temperature released from solid fuel boilers when in bivalent operation with oil-fired boilers. Another application is the locking of ventilation systems that cause vacuums in combination with tiled stoves and chimneys.
  • AC 230 V +10 %
  • Protection tube: 15 × 150 mm, steel
  • Limit value range: 40 to 120 °C
Surface-mounted thermostats - ATH.-SE series

Surface-mounted thermostats
ATH.-SE series Basic type: 603031
The devices of the ATH.-SE series are available as temperature monitors (TW), safety temperature monitors (STW), and safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status.
  • Max. control range: 50 to 300 °C
  • Material: stainless steel/copper
  • Max. capillary: 2000 mm
JUMO exTHERM-AT - Explosion-protected surface-mounted thermostat

JUMO exTHERM-AT
Explosion-protected surface-mounted thermostat Basic type: 605055
The product monitors and controls temperature in potentially explosive areas. Use in environments with gas and steam is permitted (zones 1 and 2); use in environments with conductive dust (zones 21 and 22) is also permitted.
  • Max. switching capacity: 25 A
  • Protection type IP66
  • Max. control range: 20 to 500 °C
Surface-mounted double thermostat - ATH series

Surface-mounted double thermostat
ATH series Basic type: 603026
Surface-mounted double thermostats of the ATH series consist of 2 separate measuring and switching systems. The devices are available as temperature controllers (TR), temperature limiters (TB), temperature monitors (TW), safety temperature monitors (STW), and safety temperature limiters (STB).
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Max. control range: 20 to 500 °C
Surface-mounted single thermostat or surface-mounted double thermostat - ATH-SW series

Surface-mounted single thermostat or surface-mounted double thermostat
ATH-SW series Basic type: 603035
Surface-mounted thermostats of the ATH-SW type series consist of 1 or 2 separate measuring and switching systems. The devices are available as temperature monitors (TW), safety temperature monitors (STW), and safety temperature limiters (STB).
  • Material: stainless steel/copper
  • Max. capillary: 5000 mm
  • Max. control range: 20 to 500 °C
JUMO heatTHERM - Panel-mounted thermostat

JUMO heatTHERM
Panel-mounted thermostat Basic type: 602031
The product is available as temperature controller (TR), temperature monitor (TW) (type 602030), safety temperature monitor (STW), or as a safety temperature limiter (STB) (type 602031). The panel-mounted thermostat is RoHS-compliant and cadmium-free.
  • Max. switching capacity 16 A, 230 V
  • Max. capillary: 5000 mm
  • Control range: up to 350 °C
JUMO heatTHERM P300 - 3-phase panel-mounted thermostat

JUMO heatTHERM P300
3-phase panel-mounted thermostat Basic type: 602090
The 3-phase JUMO heatTHERM P300 can switch outputs up to 480 V at 30 A. All phases are disconnected from the power grid simultaneously here. The device is a safety temperature limiter (STB) and sets the system being monitored to a safe operating status in the event of a malfunction.
  • Max. switching capacity 30 A, 480 V
  • Max. capillary length 5000 mm
  • Max. control range up to 365 °C
Panel-mounted thermostat - EM series

Panel-mounted thermostat
EM series Basic type: 602026
The devices are available as safety temperature monitors (STW) and safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status. Panel-mounted thermostats operate according to the liquid expansion principle.
  • Material: stainless steel
  • Max. capillary: 5000 mm
  • Control range: up to 300 °C

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