GKTSB 087 / RR
2 to 3 weeks

Sensor type KTSB 087 / R

TMC Bimetal Sensor - C1B

Temperature range (selection of the trigger temperature) 70 to 120 ° C (in 10 ° C steps) *, the measuring range can be extended - see modification

Normally Closed / Snap Action Contact Design

Maximum switching voltage / current 10.000 cycles 250VAC / 2.5A

3.000 cycles 250VAC / 6.3A

Switching tolerance ± 5 ° C

Housing material stainless steel DIN 1.4301

Case diameter 10 mm

Case length 30 to 100 mm

Protection class IP 67

Insulation resistance in normal environment min. 20 MΩ

2-wire contact connection

Shielded RADOX input cable 2 x 0,5 mm2

Min weight 0,2 kg depending on design *) in 5 ° C steps on request


Category 2 shock and vibration tests according to EN 61373

Insulation test 4 kVDC for 1 minute according to EN 50155

Fire resistance

according to EN 45545 and according to NFPA 130


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KTSB 087 / R series bimetal thermostats are designed as two-state regulators (ON / OFF control) that compare the preset and instantaneous temperature and immediately disconnect the contact when a set temperature is reached. The required switching temperature is defined according to customer needs by the selection of a bimetallic thermal cutout and cannot be changed.

The KTSB 087 / R series bimetal switches consist of a stainless steel housing containing a bimetal switch (thermal cut-off) and a power cable.

KTSB 087 / R series bimetal switches are used to signal a temperature overshoot in various applications, eg. to protect transformers, semiconductor power stages, motors and powerful batteries. The KTSB 087 / R series bimetal switches are intended for operation in chemically non-aggressive environments.


Type tests are carried out by a notified body according to standard EN 50155, as amended, Railway applications - Electronic equipment used on rolling stock, Art. 12.2.9, 12.2.11

- Insulation test according to EN 50155, as amended

- Shock and vibration tests according to EN 61373, as amended

If the shielded silicone cable 2 x 0,34 mm2 is changed (not in accordance with standard EN 45545-2):

- measuring range: 70 ° C to 180 ° C

The product meets the parameters in accordance with EN 45545-2, as amended, Fire protection of railway vehicles - Part 2: Requirements for the fire behavior of materials and components. The materials also meet the requirements of the NFPA 130 fire safety standard, as amended.

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