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Intrinsically Safe Explosion-Proof Manual Fire Alarm Button with Non-Polarised Two-Bus and Microprocessor-Based Fire Alarm Push Button Station

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Intrinsically Safe Explosion-Proof Manual Fire Alarm Button with Non-Polarised Two-Bus and Microprocessor-Based Fire Alarm Push Button Station

Name: Intrinsically Safe ExplosionProof Manual Fire Alarm Button with NonPolarised TwoBus and MicroprocessorBased Fire Alarm Push Button Station
Brand: XINGJIN
Price: 3 USD

Model Number : J-SAP-JBF4121A

Bus Voltage : DC 14V ~ DC 24V

Alarm Concentration : 0.65～15.5%FT

MOQ : 100 set system

Delivery Time : 15-20days

Minimum Oeder Quantity : 1set

Maintenance : Monthly Testing Recommended

Power : Battery

Certification : CCC;GB/T 3836.1-2021;GB/T 3836.4-2021;GB 19880-2005

Packaging Details : Wooden Box Or Plywood Outer Box With Bubble Bag Or Paper

Payment Terms : T/T,L/C

Temperature : -10℃ to +55℃

Working Voltage : DC19-28V

Light Intensity : 135cd

Brand Name : XINGJIN

Indicated Light : Red (Alarm/Failed), Green (Running)

Place of Origin : Guangzhou,China

Operatingtemperaturerange : -10°C to 50°C

Price : USD3-4/pc

Installation : Wall mounting

Nominal Diameter : 15mm, 20mm

Power Voltage : DC 24V

Supply Ability : 300000 sets per month

Poe : Optional

Usage : Fire alarm display and alarming

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Product Overview

The J-SAP-JBF4121A-Ex is a microprocessor-based, intrinsically safe manual fire alarm button engineered for hazardous areas that require explosion-proof protection. It connects to addressable fire alarm control panels through a non-polarised two-bus system, delivering dependable manual alarm initiation with low power consumption and an extended communication range.

Key Advantages

Microprocessor-Based Design

Built around a dedicated microprocessor, the device ensures stable performance and fast response. SMT surface-mount technology enhances reliability and product consistency across all units.

Non-Polarised Two-Bus Communication

The unit operates on a non-polarised two-bus system, eliminating the need to distinguish between positive and negative terminals during wiring. This simplifies installation, reduces the risk of connection errors, and supports communication distances of up to 1000 metres while maintaining low current consumption.

Intrinsically Safe Explosion-Proof Construction

The device is of intrinsically safe type and must be used in conjunction with a certified safety barrier. It is suitable for installation in hazardous environments where explosive gases or vapours may be present.

Electronic Addressing

Address assignment is carried out using a dedicated electronic encoder, enabling fast and accurate on-site configuration. The coding method supports straightforward system commissioning and re-addressing when required.

Simple and Secure Operation

To activate an alarm, the operator presses the front panel. The button mechanism is designed for ease of use, ensuring quick manual fire reporting. After activation, the panel can only be reset using the matching special key, preventing unauthorised or accidental reset.

Plug-In Structure for Easy Maintenance

The unit features a plug-in mechanical design, allowing the button assembly to be easily inserted into or removed from its base. This simplifies initial installation, routine maintenance, and future replacement, reducing on-site labour time and effort.

Technical Parameters

Operating Environmental Conditions
Operating Temperature	-10 to +55°C
Storage Temperature	-30 to +75°C
Relative Humidity	≤ 95% RH (40 ± 2°C)

Technical Specifications
Parameter	Technical Specification
Operating Voltage	DC 18–28V, modulated type provided by controller (must use safety barrier)
Standby Current	≤ 0.3mA (24V)
Alarm Current	≤ 1mA (24V)
Explosion-Proof Mark	Ex ib IIC T6 Gb
Addressing Method	Electronic encoder addressing
Addressing Range	1–200
Indicator Light	Fire indicator flashes momentarily in standby mode; stays steady red when pressed and in alarm
Dimensions	90mm (L) × 90mm (W) × 52mm (H)
Wiring System	Two-wire bus, non-polarity

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Intrinsically Safe Explosion-Proof Manual Fire Alarm Button with Non-Polarised Two-Bus and Microprocessor-Based Fire Alarm Push Button Station Images

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Intrinsically Safe Explosion-Proof Manual Fire Alarm Button with Non-Polarised Two-Bus and Microprocessor-Based Fire Alarm Push Button Station

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