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BExCP3A-PT/BExCP3B-PT Tool Reset Call Point

 

The BExCP3A-PT and BExCP3B-PT push button, tool resettable manual call points are approved for Zone 1, 2, 21 and 22 hazardous areas for the control of fire and gas alarm systems. Available with and without monitoring resistors all versions are certified to ATEX and IECEx standards.

The push button mechanism is protected by a spring loaded cover therefore the switch requires a two-action activation. The push button is user resettable via the use of the special key supplied with the unit. The BEx range features enclosures manufactured from corrosion proof, marine grade, copper free LM6 (A413) aluminium which is phosphated and powder coated.

Specification

 
BExCP3A-PT: II 2G Ex d e IIC T6 Gb
II 2D Ex t IIIC T60°C Db
IP66
BExCP3B-PT: II 2G Ex d e mb IIC T4 Gb
II 2D Ex t IIIC T70°C Db
IP66
Ambient: Ta = -40°C to +55°C [-40° to +131°F]
(+50°C for BExCP3B)
Ingress protection: IP66
Housing material: Marine grade copper free LM6
Aluminium
Housing finish: Phosphated & powder coated finish:
anti-corrosion.
Colour: RAL3000 Red
(others available on request)
Cable entries: 2 x M20 clearance top and
1 x M20 clearance side.
Back box can be rotated to give 
2 x bottom and 1 x side entries.
Stopping plugs: 2 x Ex e nylon plugs as standard
Brass and stainless steel plugs 
optional
Terminals: 6 x 4.0mm² cables.

Part Codes

Option: Code: Description:
Type: BExCP3A-PT
BExCP3B-PT
A type - no end of line devices
B type - choice of end of line devices
Terminals: ST
DR
ST: Standard
DR: DIN rail (only on BExCP3B type)
Duty label: NL
DL
No duty label
Duty label required - specify contents
Colour: RD
XX
Red enclosure colour
Other enclosure colour - contact sales
Voltage: 48V
24V
12V
6V
System voltage (only required for BExCP3B type)
E.O.L. Resistor: ExxxR Resistor value in Ohms e.g. E470R = 470 Ohm
(only required for BExCP3B type)
Series Resistor: SxxxR Resistor value in Ohms e.g. S1K5R = 1.5K Ohm
(only required for BExCP3B type)
e.g. BExCP3A-PT-ST-LF-NL-RD
BExCP3A Push Button call point with standard terminals and no duty label. Red housing
e.g. BExCP3B-PT-DR-NF-NL-RD-24V-E470R
BExCP3B Push Button call point with DIN rail terminals,no duty
label, 24V supply with a 470 Ohm end of line resistor. Red housing.

Options

  • Alternative housing colours are available to meet specific requirements.
  • DIN rail mounted terminal blocks: 8 x 2.5mm²
  • Metalised Polyester “Duty” label.
  • Series and/or End of Line resistors.

Versions

Version: Voltage: Switch: Terminals: Cable entries:
BExCP3A-PT 250V ac Max.
50V dc Max.
5.0A Max.
1.0A Max.
6 x 4mm² 2 x M20 Top/Bottom
1 x M20 Left/Right
Coding: II 2G Ex d e IIC T6 Gb Ta = -40°C to +55°C
II 2D Ex t IIIC T60°C Db IP66
Version: Nom./Max.
Voltage:
Switch: Terminals: Cable entries: Min. EOL /
Series Value:­
BExCP3B-PT 48V/56V
24V/28V
12V/15V
6V/9V
56V dc Max.
Rating:
<50V: 1.0A
>50V: 0.75A
6 x 4mm² or
8 x 2.5mm² 
DIN rail
2 x M20
Top/Bottom
1 x M20
Left/Right
1K8
470R
120R
47R
Coding: II 2G Ex d e mb IIC T4 Gb Ta = -40°C to +50°C
II 2D Ex t IIIC T70°C Db IP66