Cable Interconnect and Sensors

Bi-Metallic Thermostats

  • Snap action bi-metallic disc operates an SPST contact which is electrically isolated from the mounting bracket
  • All types reset when the temperature falls to nominally 15° below operating temperature
  • Phenolic body with stainless steel end cap
  • 1/4in. tab termination
  • Contacts are rated to 250 Vac 10 A with a maximum contact resistance of 50 mΩ
  • Dielectric strength of 2000 Vac
  • N/C types open on temperature rise
  • N/O types close on temperature rise
Bi-Metallic Thermostats
Stock No. Description Price
228-2557 NO close at 50°C R30.40
228-2636 NC open at 50°C R30.40
228-2658 NC open at 15°C R30.40

LEM Current Transducers LA-P Series

  • Excellent dynamic performance
  • Good linearity and low temperature drift
  • Galvanic isolation between input and measuring circuit
  • PCB mounting
  • Body material plastic to UL 94-V0
LEM Current Transducers LA-P Series
Stock No. Description Price
180-7357 LA55-P 50 A 1:1000 R150.20
179-6667 LA100-P 100 A 1:2000 R190.66
451-1324 LA100-P / SP13, 100 A R190.03
180-7391 LA55-P / SP1 50 A 1:2000 R157.72
188-3783 LA125-P 100 A 1:1000 R280.56

Linear Position Sensor

  • Glass filled nylon bodied sensor with 10 mm electrical stroke and spring loaded plunger
  • For best results, use as a potential divider (not variable resistor) and buffer the resulting output with a high impedance amplifier
  • Output smoothness 0.5 % (Max)
  • Resistance 5 kΩ linear (±20 %)
  • Connection via 0.2 m flying leads
  • Linearity of ±2 % and temperature coefficient of ±200 ppm / °C
  • Mechanical life 5 x 106 (ull cycles)
Linear Position Sensor
Stock No. Description Price
317-780 Linear position resistive sensor, 5 kohm R170.81

High Temperature Bi-Metallic Thermostats

  • Designed specifically for harsh, high temperature environments
  • Snap action bi-metallic disc, which is electrically and thermally isolated from the switch, actuates the normally closed contacts
  • Ceramic housing with heat sensitive disc retained by a heat conducting stainless steel end cap
  • 1/4in. tab termination
  • Contacts are rated to 250 Vac 10 A with a maximum contact resistance of 50 mΩ
  • Dielectric strength of 2000 Vac
  • N/C types
High Temperature Bi-Metallic Thermostats
Stock No. Description Price
228-2529 NC open at 250+/-11°C R60.05
228-2541 NC open at 200+/-11°C R60.05
228-2535 NC open at 220+/-11°C R60.05

LEM Current Transducers LA-S Series

  • Measurement of continuous, alternating, pulsed and mixed currents
  • Galvanically isolated between inputs and measuring circuit
  • Self extinguishing plastic housing UL 94–V0
  • Operating temperature range: -10°C to + 85°C
LEM Current Transducers LA-S Series
Stock No. Description Price
207-2984 LA-S hall effect 200 A R589.28
207-2990 LA-S hall effect 300 A R725.09

Thermal Switches

  • Snap action bi-metallic disc operates an SPST contact which is electrically isolated from the mounting bracket
  • All types reset when the temperature falls to nominally 15° below operating temperature
  • Phenolic body with stainless steel end cap
  • 1/4in. tab termination
  • Contacts are rated to 250 Vac 10 A with a maximum contact resistance of 50 mΩ
  • Dielectric strength of 2000 Vac
  • N/C types open on temperature rise
  • N/O types close on temperature rise
Thermal Switches
Stock No. Description Price
331-528 Bi-metallic NC thermostat, open @ 90 deg C R31.35
331-534 Bi-metallic NC thermostat, open @ 120 deg C R33.71
339-724 Bi-metallic NC thermostat,open @ 150 deg C R31.35
228-2664 Bi-metallic NC thermostat, open @ 20 deg C R30.40

My-Com Precision Position Switch

  • Nickel plated brass housing
  • Activating force 75 g
  • Switching frequency 10 Hz
  • Temperature range: -20°C +75°C
  • Repeatability ±0.001 mm
My-Com Precision Position Switch
Stock No. Description Price
446-0254 PNP 5-36 Vdc R1190.79

Ultrasonic proximity sensor

  • Polyester housing
  • M12 plug-in connector
  • LED indication
  • Output slope can be inverted
Ultrasonic proximity sensor
Stock No. Description Price
338-9930 100-1000 mm sensing distance 20 mA R2678.52

Reed Proximity Switch Heavy Duty

  • Pre-wired with 0.7 m PVC leads
  • Blue cast zinc case with slotted fixing
  • Breakdown volts: 340 ac / 500 dc
  • Rating IP64
  • Dimensions: 80 x 19 x 9.6 mm (switch) 38 x 25 x 9.6 mm (magnet)
Reed Proximity Switch Heavy Duty
Stock No. Description Price
339-746 HD pre-wired reed switch, NO 500 Vdc R124.19
339-752 HD pre-wired reed switch, C/O 500 Vdc R161.12

Manual Reset Bi-Metallic Thermostats

  • Designed for applications that require status indication of over temperature
  • Snap action bi-metallic disc, electrically and thermally isolated from the switch, actuates the normally closed contacts
  • Manual reset can be operated at approximately 70 % of the opening temperature
  • Dust-free phenolic housing with heat sensitive disc retained by a heat conducting stainless steel end cap
  • 1/4in. tab termination
  • Contacts are rated to 250 Vac 10 A with a maximum contact resistance of 50 mΩ
  • Dielectric strength of 2000 Vac
Manual Reset Bi-Metallic Thermostats
Stock No. Description Price
228-2513 Open at 70 +/-4°C R58.00
228-2579 Open at 90 +/-4°C R62.50
228-2591 Open at 120 +/-4°C R62.57
228-2608 Open at 100 +/-4°C R62.57
228-2614 Open at 150 +/-4°C R63.25

LEM Current Transducers LTS - P Series

  • Single-pole closed-loop current transducers based on the Hall effect principle
  • Voltage output
  • 3 different input ranges via selection pins
  • Compact format for mounting on p.c.b.
  • Excellent precision and good linearity
  • Low temperature drift
  • Body material plastic to UL94-V0
LEM Current Transducers LTS - P Series
Stock No. Description Price
436-2330 Hall effect 6 A R96.07
321-6315 Hall effect 15 A R110.45
301-9473 Hall effect 25 A R110.45
307-5603 Current transducer kit R500.51

Basic Bi-Metallic Thermostats

  • PPS Ryton body with steel end cap
  • Electrical terminals parallel to the mounting face and a floating steel bracket to ease mounting and increase temperature tolerance
  • N/C types open on temperature rise, N/O types close on temperature rise
  • 1/4in. tab termination
  • Contacts are rated to 250 Vac 10 A with a maximum contact resistance of 50 mΩ
  • Dielectric strength of 2000 Vac
Basic Bi-Metallic Thermostats
Stock No. Description Price
229-5890 NC open at 60°C R32.70
229-5907 NC open at 50°C R32.70
229-5878 NC open at 80°C R32.70
229-5963 NO close at 70°C R32.70
229-5862 NC open at 90°C R32.70
229-5884 NC open at 70°C R32.70
229-5913 NC open at 30°C R32.70
229-5935 NO close at @35°C R32.70

LEM Current Transducers LTSR Series

  • AC / DC and mixed current measurement
  • Closed loop, high accuracy (better than 1 %)
  • Unipolar 5 V supply
  • Different measurement ratings by altering pin configuration
  • Compact format
  • Excellent precision and linearity
  • Low temperature drift
  • PCB mounting
LEM Current Transducers LTSR Series
Stock No. Description Price
499-5356 LTSR6NP 6 A R116.38
499-5362 LTSR15NP 15 A R116.38
499-5378 LTSR25NP 25 A R116.38

Analogue Magnetic Pick-up

  • Use the pick up with a high impedance load and position the pick up as close as is safe to the moving parts, clearances up to 2.5 mm are quite normal
  • In a geared system, use the pick up with the highest speed gear wheel
Analogue Magnetic Pick-up
Stock No. Description Price
304-166 Standard analogue magnetic pickup,10 V R121.20
285-756 High o/p analogue magnetic pickup, 60 V R394.37
285-762 Heavy duty analogue magnetic pickup, 190 V R667.59

M8 Inductive Proximity Sensors

  • Stainless steel body
  • 2 m PVC pre-wired or M8 plug-in types
  • For suitable M8 plug-in leads see RS stock no. 290-4437
M8 Inductive Proximity Sensors
Stock No. Description Price
437-0757 46 mm PNP NO R393.11
181-1794 30 mm cabled sensor PNP NO R410.35
437-0735 22 mm cabled sensor PNP NO R455.42
437-0741 28 mm PNP NO R424.30

Hand Hot Indicators

  • Provides immediate visual indication of hot surface
  • Circular self adhesive
  • Supplied in pack of 10
Hand Hot Indicators
Stock No. Description Price
339-5480 Red temperature sensitive label 70°C R63.10
339-5474 Yellow temperature sensitive label 50°C R63.20

Gear Tooth Sensor

  • Digital current sinking output (open collector)
  • Better signal-to-noise ratio than variable reluctance sensors, excellent low speed performance, output amplitude not dependent on RPM
  • Sensor electronically self-adjusts to slight variations in runout and variations in temperature, simplifying installation and maintenance
  • Fast operating speed – over 100 kHz
  • Reverse polarity protection and protection against pulsed transients to +60 V / + 40 V
  • Excellent signal-to-noise ratio and low speed performance
  • EMI resistance
  • Supplied with manufacturers instruction sheet
  • Applications include: camshaft and crankshaft speed / position, transmission speed, tachometers, counters, anti-skid / traction control, sprocket speed, chain link conveyor speed distance, stop motion detector
Gear Tooth Sensor
Stock No. Description Price
235-5706 Hall effect gear tooth sensor, 4.5-24 Vdc R215.40
© RS Components (SA) P.O. Box 12182, Vorna Valley 1686, 20 Indianapolis Street, Kyalami Business Park, Kyalami, Midrand, South Africa
Phone: +27 11 691 9300