Introduction to the Apollo Discovery Waterproof Addressable Manual Call Point
Apollo Discovery Waterproof Addressable Manual Call Point (58200‑951APO)is a purpose‑built, loop‑powered manual call point designed for demanding outdoor and high‑humidity environments. Compatible with XP95, Discovery and CoreProtocol systems, this isolator variant combines weatherproof protection, low power consumption and an integral short‑circuit isolator to provide reliable, easy‑to‑service fire alarm initiation in locations where standard indoor call points are not suitable.
Key features include addressable operation set via a 7‑segment DIL switch, a resettable front operating element with an ergonomic key, a high‑visibility LED with a 170° viewing angle, captive fixing screws for secure installation and a built‑in isolator with status indication. The unit is offered in a compact, fire‑retardant polycarbonate housing and is certified to EN 54‑11, with the isolator variant complying with EN 54‑17.
Detailed specifications and benefits
- Part number:58200‑951APO
- Protocol compatibility:XP95, Discovery, CoreProtocol
- Addressing:7‑segment DIL switch
- Supply voltage:17–28 V DC
- Quiescent current:≈100 µA (at 24 V)
- Alarm LED current:≈4 mA
- Power‑up surge:≈1 mA (typical)
- Polarity:Polarity sensitive (L1 & L2)
- IP rating:Product page states IP67 — consult datasheet PP2454 for IP56/IP67 enclosure wording and gland arrangements
- Operating temperature:-30 °C to +70 °C
- Material:Fire‑retardant polycarbonate housing
- Dimensions:114 × 114 × 74 mm (H × W × D)
- Weight:≈325 g
- Standards:EN 54‑11; EN 54‑17 (isolator variant)
- Datasheet:PP2454
- Weatherproof reliability:Designed for outdoor use and high‑humidity environments, the unit’s enclosure and sealing options help protect electronics against moisture, dust and spray when correctly installed with appropriate glands and seals.
- Low current draw:Very low quiescent current (≈100 µA) minimises loop loading, allowing more devices per loop and reducing the impact on system power budgets.
- Built‑in isolator:The 58200‑951APO includes a short‑circuit isolator that helps maintain loop integrity by isolating a faulted section. The isolator status is displayed via a yellow LED, aiding rapid fault identification.
- Resettable front element:The resettable operating element eliminates the need to replace glass, reducing maintenance time and ongoing consumable costs. The ergonomic key makes resets straightforward for authorised personnel.
- High visibility status LED:The red alarm indicator has a wide 170° viewing angle for clear visibility from many approach directions — valuable in outdoor locations where sightlines can be limited.
- Secure mounting and tamper resistance:Captive fixing screws reduce the chance of lost hardware and improve tamper resistance, while the housing material balances robustness and flame retardance.
Use cases and scenarios where the product excels
The Apollo Discovery waterproof call point is suited to any application where exposure to the elements, moisture or washdown procedures would make a standard indoor call point unsuitable. Typical scenarios include:
- External doorways and building exteriors:Positioned at entrances and exits where a robust, weatherproof initiation point is required.
- Shelters, canopies and covered walkways:Areas with intermittent exposure to rain and wind where IP‑rated protection is important.
- Car parks and transit hubs:Public‑facing locations needing clear visual indication and resilient hardware.
- Plant rooms and industrial environments:Locations subject to dust, oil mist or higher ambient temperatures within the specified range.
- Washdown areas:Where equipment may be subject to periodic high‑pressure cleaning, provided correct cable gland and sealing practice is followed.
- Marine and coastal applications:With appropriate sealing and material considerations, the product’s weatherproofing makes it a strong candidate for sheltered coastal installations.
Comparisons with similar products in the market
When selecting a manual call point for demanding environments, it helps to compare addressable waterproof isolator models with other categories of call points:
- Indoor call points typically lack the sealing, glanding and enclosure robustness required for outdoor use. The Apollo waterproof model adds environmental protection and specific installation guidance to remain reliable in wet or dusty settings.
- Both types may offer addressability and low power operation, but the waterproof isolator variant adds mechanical sealing and higher ingress protection (IP56/IP67 options) and is tested to handle more extreme ambient conditions.
- Addressable call points report their exact identity and status to the fire panel, enabling faster pinpointing of alarm locations on the control equipment. Conventional call points simply trigger a zone and often require manual inspection to locate the initiating device.
- Built‑in isolators (as in the 58200‑951APO) enhance system resilience on addressable loops, while most conventional call points rely on circuit wiring practices or external isolators for similar protection.
Many manufacturers offer waterproof or weatherproof manual call points. When choosing between them, consider:
- Protocol compatibility:The Apollo product works directly with XP95/Discovery/CoreProtocol systems — a major advantage when specifying onto an Apollo loop as it simplifies integration and reduces configuration surprises.
- Quiescent current and loop loading:Apollo’s low quiescent current (~100 µA) is competitive and allows more devices per loop without stressing power budgets.
- Isolator inclusion:Not all waterproof addressable call points include a built‑in isolator. The integrated isolator reduces additional components and simplifies wiring.
- Serviceability:A resettable front element is often preferred to break‑glass designs for maintenance and lifecycle cost savings.
Customer feedback and installer perspectives
While specific verified customer reviews vary by project, typical feedback themes from installers and facilities managers evaluating waterproof addressable call points include:
- "Installation friendly — captive screws and clear addressing reduce on‑site fuss."
- "Low loop current is a real benefit when populating a busy loop with multiple devices."
- "The resettable element is ideal for high‑traffic public areas where accidental activations happen; no glass replacements saves time and cost."
- "Built‑in isolator gives confidence that a wiring fault won't take down the whole loop."
These representative comments reflect common priorities: reliability in harsh conditions, ease of installation and maintenance, and system robustness.
Installation, compliance and practical considerations
Proper installation is essential to realise the unit’s weatherproof performance. Installers should follow Apollo datasheet PP2454 and the system designer’s instructions, paying particular attention to cable gland selection, sealing compounds, correct polarity (L1/L2) and mounting practice. Note the datasheet language around IP56/IP67 — while the Apollo product page lists IP67, the datasheet clarifies enclosure versus electronics protection. For definitive guidance, consult Apollo technical support where needed.
Also ensure the device is installed by a qualified person in accordance with local fire safety regulations and standards such as EN 54‑11 and EN 54‑17 (for isolator functionality) where applicable.
Conclusion — why choose the 58200‑951APO?
The Apollo Discovery Waterproof Addressable Manual Call Point (58200‑951APO) is a robust, well‑specified choice for outdoor and moisture‑exposed fire alarm initiation points. It blends addressable loop compatibility, very low quiescent current, a resettable and serviceable front element, and a built‑in short‑circuit isolator to deliver operational resilience and reduced lifecycle costs. With clear LED status indication, secure captive fixings and a compact, flame‑retardant housing, it answers the common needs of contractors, specifiers and facilities managers seeking reliable performance in challenging environments.
For any installation, review datasheet PP2454, confirm the IP protection requirements for your site and engage Apollo technical resources if you need clarification on sealing, gland selection or environmental suitability. When properly specified and installed, the 58200‑951APO offers a practical, high‑performance solution for weatherproof addressed manual call point needs.
