CROUZET Switches & Sensors
1415 S Roselle Road
Palatine IL 60067
USA
Customer Service : 1-800-677-5311
http://www.crouzet.com
PBX Secure ® Presentation
PBX Secure main technical features :
> Dimensions : According to DIN 41 636 form F
> Electrical configuration: Change-over double break with four terminals, electrical
separation (form Zb)
> Standard and low level electrical rating versions
I(mA)
> Safety : Direct opening action according to IEC 60947-5-1 Annex K
> Technical advantage: Long overtravel beyond positive opening position
> Sealing (Mechanism/Terminals): IP40/IP00-IP20 and IP67/IP00-IP20
> Environment : Operating temperatures -50°C to +85°C (-58°F to +185°F)
> Choice of accessories: Levers, mounting brackets and covers
> Ability to customize depending on the technical requirements: specific connectors,
protection covers, actuators…
Sealing
The PBX Secure range includes an IP40 and a sealed IP 67 version. With any version, the PBX
plunger is equipped with a silicon membrane which protects the contacts against external
pollutions (dust and fluids). For the IP67 version, a joint makes the sealing inside the
housing, and potting resin strengthens the sealing between the terminals and the housing.
Direct Opening Action and Long Overtravel
Crouzet offers a switch insuring a very high contact reliability. This solution has been
validated by many mechanical endurance tests made by various Crouzet customers,
especially in the railway and off-road markets.
The PBX switch guarantees the opening of the contacts with its positive break
mechanism (cf. standard IEC 60 947-51). The product intrinsically gets a long overtravel
after the positive opening position (POP), allowing it to absorb the mechanical
tolerances. This offers a greater flexibility for implementation for customers. This
patented contact block, from the proven Crouzet Industrial Limit Switch product family,
is very efficient (more than 10 million cycles) and operates in extreme temperature
environments (qualified for -50°C/-58°F).
Protection Degree and Low Temperature
Crouzet is proud to offer a unique product with an IP67 level and a -50°C/-58°F
minimum operating temperature to be compliant with DIN 41636 form F and IEC
60947-5-1.
PBX Standards, Conformity and Approvals
The PBX Range has been developed according to industrial and railway standards.
Product standard: IEC 60947-5-1
Positive opening operation: IEC 60947-5-1 Annex K
Product Dimensions: DIN 41 636 FORM F
Insulation coordination following IEC 60 947-1
o Pollution degree : III
o Rated impulse withstand voltage Uimp : 4kV
o Insulation voltage: 400V
Insulation coordination following EN 50124-1 (Railway standards)
o Pollution degree: 3A
o Rated impulse withstand voltage Uimp : 2.5kV
o Insulation voltage: 150V
Fire and Smoke Resistance
o UL94-V0
o IEC 60695-2-12 GWFI 960°C (1760°F)
o NFF 16 101 and NFF 16 102
Protection degree (Mechanism/Terminals)
o IEC 60529
- IP40/IP00-IP20
- IP67/IP00-IP20
Approvals
o SNCF (French Railway) qualification approval (registration 10-5312 235 and 10-5312
134)
o CCC
o
Contact us
PBX Qualification Synthesis
The tables below give an overview on the tests that have been applied and the associated
standards.
Electrical Tests
Test
Contact Resistance
Related Standard
NFC 93 050
Level / Goal
Status
< 15 mΩ measured at 1A 30V
> 5000MΩ at 500VDC between open contacts and
between contacts and ground
1500 V between open contacts
2000 V between separate circuits and between
contacts and ground
Max 4.4mm. Measured by neutralizing snap action
mechanism and checking for 2.5kV across contacts
No damage upon applying a 5N force on each of the 2
NC contacts, and simultaneously a 28N force on
plunger.
Temperature rise on parts do not exceed standard
limits when carrying a 10A current
AC15 / 250 V / 6 A
100,000 cycles
AC15 / 250 V / 2.5 A
1,000,000 cycles
DC13 / 125 V / 0.5 A L/R = 100 ms
100,000 cycles
DC13 / 125 V / 0.2 A L/R = 50 ms
1,000,000 cycles
110 VDC / 1 A L/R = 5 ms
200,000 cycles
24 VDC /10mA
2,000,000 cycles
Insulation Resistance
NFC 93 050
Dielectric Strength
NFC 93 050
Positive Opening Position
Crouzet criterion
Positive Opening Operation
Robustness of mechanical transmitter
IEC 60947-5-1 annex K
Thermal Rating
IEC 60 947- 5-1
Electrical Endurance
IEC 60 947- 5-1
Electrical Endurance
IEC 60 947- 5-1
Electrical Endurance
IEC 60 947- 5-1
Electrical Endurance
IEC 60 947- 5-1
Electrical Endurance
IEC 60 947- 5-1
Electrical Endurance (low energy )
IEC 60 947- 5-4
Short-Circuit protection
IEC 60 947- 5-1
6AgG Fuse . Tested at 1000A short circuit current
Impulse withstand voltage
CEI 60060 - 1.2 / 50 µs
2.5 kV pulse : between open contacts
5 kV pulse : between contacts and ground
Environmental Tests
Test
Related Standard
Mechanical Durability
Min Operating Temperature
Max Operating Temperature
Damp Heat
Salt Spray
Rapid change of Temperature
Crouzet criterion
IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-30
IEC 60068-2-11
IEC 60068-2-14
Sinus Vibrations
IEC 60068-2-6
Random Vibrations endurance Tests
EN 61 373
Shocks
IEC 60068-2-27
Degree of protection IP6x
IEC 60 529
Degree of protection IPx7
IEC 60 529
Level / Goal
10 M cycles at full travel - 2 Hz
Correct operation after a 24h storage at -50°C/-58°F
Correct operation after a 24h storage at +85°C/+185°F
55°C(131°F) /95% relative humidity /6 cycles
96h
Low T : -50°C(-58°F) / High T : +85°C(+185°F)
10g - 15Hz to 500Hz : 3 axis
with no micro-opening of contacts > 10µs
5-150Hz 0.18g²/Hz 0.79g (rms) 5 hours on each axis
with no micro-opening of contacts > 10µs
50g/11ms on 3 axis
with no micro-opening of contacts > 10µs
no dust ingress
1m immersion in water during 30'
with no water ingress
Status