JUMO 701160/9-0153-043-25 safetyM TB/TW Safety Relay Unit

The safetyM TB/TW JUMO 701160/9-0153-043-25 is a free programmable safety temperature limiting and monitoring device of high reliability for the prevention of catastrophic thermal runaways in critical machinery spaces. This adaptable instrument can be configured as a Temperature Limiter (TB) which has to be manually reset after a breach of limit, or a Temperature Monitor (TW) which resets automatically when temperatures recover to safe operating parameters.

The relay is designed for universal analogue measurement inputs (RTD temperature probes (Pt100, Pt1000), thermocouples and standard linear current/voltage signals) and provides fast fault response and fail-safe operation in the harshest of industrial and maritime environment. The relay is mounted on a DIN-rail. If an assigned thermal limit is exceeded, the integrated heavy-duty relay immediately opens the safety loop, switching the front-panel status LED from green to red and emitting a pre-alarm to prevent complete system shutdown.

Model & Identification

• Model Details: safetyM TB/TW Series
• Manufacturer Part Number (MPN): 701160/9-0153-043-25
• Part Number Cross-References: 701160-9-0153-043-25, 701160/8-0153-001-25 (similar functional series), 431407

Technical Specifications

System Compatibility

• Probes: Fully compatible with standard industrial 2-wire and 3-wire Pt100 and Pt1000 resistance thermometers.
• Configuration: Configurable via front-panel alphanumeric LC display or through a dedicated PC setup interface software accessory for archiving and calibration.

Lead Time & Shipping Logistics

• Handling Time: Ships within 1 to 2 business days from order verification. Same-day dispatch available for orders finalized before 16:00 IST.
• Carrier Partners: Premium express global logistics via DHL Express, FedEx, and UPS.

Engineering Applications

• Marine Boiler Steam Systems : Monitoring exhaust gas temperature, superheater manifolds and auxiliary feedwater thermal bounds.
• Main Propulsion & Generator Protection: Heavy Fuel Oil (HFO) pre-heater and thermal fluid system over temperature interlock
• Industrial Furnace & Heat Treatment Protection of high-capacity heating elements, baking ovens and autoclaves from runaway thermal profiles.
• Chemical Process Loop Safeguarding Independent hardware-level trip layer for chemical reactors and pressurised heat exchangers.

Senior Marine Engineer’s Insight:

The JUMO safetyM series is widely recognised for its discrete hardware level intervention, particularly in machinery spaces – particularly on ships or distant processing factories, where extreme vibration and temperature cycling are the norm. The 701160 unit is a strong, independent layer of protection, not like software-driven PLCs that are susceptible to code loops or communication failures. In the configuration of this unit for highly vibrating situations, be sure that your input digital filter constant is calibrated to filter out transient structural noise but does not adversely affect the crucial response window.