The BExCP3A-PB and BExCP3B-PB push button 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 product is user resettable by rotating the push button.
The BEx range features enclosures manufactured from corrosion proof, marine grade, copper free LM6 (A413) aluminium which is phosphated and powder coated.
Specification:
| BExCP3A-PB: | II 2G Ex e d IIC T6 Gb |
| II 2D Ex t IIIC T60°C Db |
| IP66 |
| | |
| BExCP3B-PB: | II 2G Ex e d 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 |
| | |
| Weight: | 0.8 Kg |
Part Codes:
(The actual choices for this particular model are highlighted in red)
| Option: | Code: | Description: |
| | | |
| Type: | BExCP3A-PB | A type - no end of line devices |
| BExCP3B-PB | B type - choice of end of line devices |
| | | |
| Terminals: | ST | Standard |
| DR | DIN?rail (only on BExCP3B type) |
| | | |
| Duty label: | NL | No duty label |
| DL | Duty label required - specify contents |
| | | |
| Colour: | YW | Yellow enclosure colour |
| XX | Other enclosure colour - contact sales |
| | | |
| Voltage: | 48V | System voltage |
| 24V | (only required for BExCP3B type) |
| 12V | |
| 6V | |
| | | |
| E.O.L. Resistor: | E4K7R | Resistor value in Ohms: |
| | E4K7R = 4,7K Ohm |
| | (only required for BExCP3B type) |
| | | |
| Series Resistor: | S1K5R | Resistor value in Ohms: |
| | S1K5R = 1.5K Ohm |
| | (only required for BExCP3B type) |
| | | |
| Makes this part code : | BExCP3B PB ST NL YW 24 E4K7R S1K5R |
However, this becomes too long for our system, so we have shortened it to:
| Short version: | BExCP3B P MS11216 |
BExCP3B Push Button call point with standard terminals, no duty label, Yellow housing, 24V, E.O.L. Resistor = 4,7K Ohm and Series Resistor = 1.5K Ohm.
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-PB | 250vAC Max. | 5.0A Max. | 6 x 4mm² | 2 x M20 T/B* |
| 50vDC Max. | 1.0A Max. | | 1 x M20 L/R* |
| | | | | |
| Coding: | II 2G Ex e d IIC T6 Gb Ta = -40°C to +55°C |
| II 2D Ex t IIIC T60°C Db IP66 |
| | |
Versions:
| Version: | Nom./Max. | Switch: | Terminals: | Cable entries: |
| Voltage: | | | |
| | | | | |
| BExCP3B-BG | 48V/56V | 56V dc Max. | 6 x 4mm² or | 2 x M20 T/B* |
| 24V/28V | Rating: | 8 x 2.5mm² | 1 x M20 L/R* |
| | 12V/15V | <50V: 1.0A | DIN?rail | |
| 6V/9V | >50V: 0.75A | | |
| | | | | |
Min. EOL / Series Value: 1K8; 470R; 120R; 47R
| Coding: | II 2G Ex e d mb IIC T4 Gb Ta = -40°C to +50°C |
| II 2D Ex t IIIC T70°C Db IP66 |
| | |
*) T/B = Top/Bottom *) L/R = Left/Right
Approvals:
ATEX certificate: Sira 09ATEX3286X,
IEC 60079-0:2007 Ed 5, EN 60079-1:2004,
EN 60079-7:2007, IEC 60079-18:2009 Ed 3,
EN 61241-1:2004
IECEx certificate: IECEx SIR 09.0121X,
IEC 60079-0:2007-10 Edition: 5,
IEC 60079-1:2003 Edition: 5,
IEC 60079-18:2009 Edition: 3,
IEC 60079-7:2006-07 Edition: 4,
IEC 61241-1:2004 Edition: 1
Inmetro certificate: 10-IEx-0011X
GOST-R certificate: POCC GB.JB05.B03365