Honeywell Morley MI-WSS-PR-N wall-mounted sounder strobe with red housing and red lens

Honeywell Morley Strobe Sounder MI WSS PR N

KTI07001001MIPR

Product Description

The Honeywell Morley MI-WSS-PR-N is an intelligent addressable loop-powered wall-mounted sounder strobe engineered for fire alarm and emergency audio-visual evacuation signalling.

Make: Honeywell
Model: MI-WSS-PR-N
Operating Voltage: 15 to 29 VDC (Isolation and Non-isolation modes)
Standby Current: 120 µA (Non-isolation) / 225 µA (Isolation)
Maximum Current Consumption: 14.5 mA (sounder and strobe combined, High Volume Tone 11 at 15V)
Acoustic Output: Up to 97 dB(A) ±3 dB at 1 metre (High Volume, Tone 8 at 24V)
Tone & Volume Settings: 32 selectable tones with 3 configurable volume levels (High, Medium, Low)
Visual Indicator: Red lens with 1 Hz beacon flash rate (Visual Indicating Device)
Base Compatibility: Mounts on Honeywell Morley-IAS B501AP common detector/AV base
Terminal Wire Gauge: Accepts 1.5 mm² to 2.5 mm² max wiring
Addressing: Manual address selection via two decimal rotary switches
Standards: EN54-3 approved acoustic performance

KTI07001001MIPR

Price

₹ 7,038.90 excl. GST

+ 18.00% GST. Freight after pincode at cart.

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Product Details
Available Brands	Honeywell
Unit	Numbers
HSN Code	85311020
Weight	0.238 kg
Warranty	12 Months Warranty
Tags/categories	Safety Fire Safety Solutions Fire Alarm System Conventional Fire Alarm System

Usually dispatched within 5 days

About this product .

The Honeywell Morley MI-WSS-PR-N is an intelligent addressable wall-mounted audio-visual alarm device engineered for high-reliability fire detection and evacuation systems. Constructed with durable red plastic housing and an integrated red lens, the device provides robust physical protection suitable for demanding industrial and commercial environments.
Acoustically, the unit generates high-output audible alert tones up to 97 dB(A) (±3 dB at 1 metre, high volume setting at 24 VDC). System designers can choose from 32 field-selectable tone configurations and three volume levels (High, Medium, and Low) to customize notification to the acoustic environment of the facility.
Visual warning is delivered via an integrated red visual indicator operating at a 1 Hz flash rate. While certified under EN54-3 for audible evacuation, this unit is classified as a Visual Indicating Device (VID) intended for supplemental notification rather than an EN54-23 primary Visual Alarm Device (VAD).
The unit operates directly over the addressable signalling loop with an operating supply voltage range of 15 to 29 VDC across both isolated and non-isolated models. It features an exceptionally low standby draw of 120 µA in non-isolation mode (225 µA in isolation mode) and a maximum active current consumption of only 14.5 mA with sounder and strobe running concurrently.
Installation is streamlined through compatibility with the standard Morley-IAS B501AP detector base, enabling unified mounting hardware across detectors and notification appliances. The base incorporates a shorting spring that allows electrical contractors to perform wiring continuity testing before installing active heads.
Device addressing is managed through two integrated rotary decimal selector switches, providing rapid, error-free address commissioning directly on-site. Terminals accommodate field wiring gauges from 1.5 mm² to 2.5 mm², supporting both rear and surface cable entry pathways.
The device is widely deployed across corporate offices, industrial manufacturing facilities, warehouses, commercial complexes, healthcare facilities, and educational institutions requiring EN54-3 compliant addressable life safety notification.

Product Information .

Corporate Offices Worship Places Industries, Factories Hospitals, Clinics Libraries Shopping Malls, Showrooms Government Buildings, Offices Banks Airports Railways, Bus Stations Conference Rooms Restaurants Resorts Refineries Chemical Plants Defense Sectors Event Management Server Rooms Basement, Parking Areas Pharma Industries Auditorium Conference Hall Construction Sites

System and Hardware Compatibility: Honeywell Morley-IAS MI-WSS-PR-N

The Honeywell Morley-IAS MI-WSS-PR-N wall-mounted sounder strobe (ERP Ref: KTI07001001MIPR) is an intelligent, loop-powered notification appliance engineered specifically for seamless integration into Morley-IAS addressable fire detection networks. Operating under the native Morley-IAS communication protocol, the MI-WSS-PR-N interfaces directly with compatible Morley-IAS intelligent fire alarm control panels without requiring auxiliary power supplies or separate relay trigger modules.

Morley-IAS Control Panel Protocol Integration

The MI-WSS-PR-N is fully compatible with Morley-IAS addressable fire alarm control panels communicating via the proprietary Morley-IAS protocol. Because it shares communication protocols and electrical characteristics with the broader Morley-IAS intelligent device family, system designers can deploy this audiovisual notification device across standard addressable signaling loops alongside intelligent sensors and call points.

B501AP Base and Physical Mounting Compatibility

To streamline installation across commercial and industrial facilities, the MI-WSS-PR-N utilizes the standard Honeywell Morley-IAS B501AP mounting base. This shared base footprint maintains complete mechanical and electrical compatibility with the Morley-IAS detector range, allowing installers to use a uniform rough-in architecture across the entire jobsite.

Mounting Base: Exclusively mounts directly to the Honeywell Morley-IAS B501AP base.
Pre-Commissioning Testing: The B501AP base includes an integrated shorting spring, which allows installation contractors to test circuit wiring continuity across the entire addressable loop before twisting and locking active sounder strobe heads into place.
Cabling Accommodation: Designed with large cable access provisions to support both rear-entry and surface-mount cable routing configurations.
Terminal Capacity: Integrated screw terminals accept solid or stranded field conductors sized between 1.5 mm² and 2.5 mm² max.

Loop Electrical Compatibility and Loading Constraints

Calculating fire alarm loop voltage drops and standby battery loads requires careful verification of device current profiles. The MI-WSS-PR-N draws operational power directly from the signaling line circuit (SLC) within an operating supply voltage range of 15 to 29 VDC, accommodating both non-isolation and isolation operating modes.

Electrical Parameter	Specification Value
Operating Supply Voltage	15 to 29 VDC (Non-isolation and Isolation modes)
Standby Current (Non-Isolation)	120 µA
Standby Current (Isolation)	225 µA
Max Current Consumption (Sounder + Strobe)	14.5 mA (High Volume, Tone 11 at 15V)
Maximum Acoustic Output	97 dB(A) +/-3 dB at 1 m (High Volume, Tone 8 at 24V)

Addressing and Synchronization Compatibility

Device identification on the Morley-IAS loop is accomplished via two onboard rotary decimal switches, providing physical decimal addressing that allows commissioning technicians to select and verify addresses directly without specialized electronic handheld programmers. When connected across the addressable network, the MI-WSS-PR-N supports automatic protocol-driven synchronisation of both the audible sounder tone and the 1 Hz visual strobe flash rate with adjacent sounder strobe devices on the loop, eliminating chaotic acoustic interference in open corridors and wide-span areas.

Standards and Application Scope Compatibility

The MI-WSS-PR-N incorporates a red plastic body and a red lens, constructed for dependable signaling across corporate offices, industrial manufacturing facilities, warehouses, hospitals, and commercial properties. Its audible horn feature provides 32 selectable tones and 3 volume settings (High, Medium, Low) certified under EN54-3. For system design compliance, fire protection engineers must note that the integrated 1 Hz flashing strobe is classified as a Visual Indicating Device (VID). The device is not EN54-23 approved (Visual Alarm Device) and cannot be specified as a primary visual-only evacuation alarm in areas where EN54-23 compliance is legally mandatory.

Installation and Wiring Guide for Honeywell Morley-IAS MI-WSS-PR-N

Base Mounting and Mechanical Alignment

The Honeywell Morley-IAS MI-WSS-PR-N intelligent wall-mounted sounder strobe installs onto the standard B501AP system base. Because the B501AP is a universal base shared across Morley-IAS addressable fire detection devices and visual indicators, installers can standardise rough-in mounting across commercial, factory, and institutional sites. The device weighs 0.238 kg, allowing stable mechanical installation directly to standard backboxes or flat wall surfaces using appropriate fixings.

Installers should position the B501AP base squarely against the mounting surface to ensure the red plastic housing of the MI-WSS-PR-N sits flush upon final attachment. The low-profile mechanical footprint provides clean visual integration in offices, healthcare facilities, shopping complexes, and industrial plants.

Cable Entry and Field Wiring Termination

Field wiring entry is designed for versatility in both retrofit and new-build installations. The B501AP base and enclosure design provide large cable access capable of handling either direct rear conduit feed or surface cable trunking entry. Installers should strip field conductors according to standard termination practices and route the loop cables directly to the base screw terminals.

Conductor Gauge Capacity: The base terminal blocks support solid or stranded field wiring with cross-sections from 1.5 mm² to 2.5 mm² maximum.
Cable Management: Use the large cable aperture to prevent mechanical stress, conductor pinching, or insulation damage behind the sounder assembly.
Polarity Verification: Ensure correct Morley-IAS signalling loop polarity across terminal connections before fixing the unit head into position.

Address Setting via Decimal Rotary Switches

Address assignment on the MI-WSS-PR-N is performed manually prior to securing the active head into the B501AP base. Two integrated rotary decimal selector switches allow commissioning engineers to dial in the device's unique loop address directly. This physical decimal addressing removes the requirement for handheld electronic programming tools and ensures immediate visual verification of device numbering against fire alarm zone and loop engineering drawings.

Circuit Continuity Verification and Final Assembly

The B501AP base includes an integrated shorting spring mechanism. This design permits electrical continuity testing of the signalling loop wiring across the entire circuit prior to docking the active MI-WSS-PR-N sounder strobe head. Commissioning technicians can megger and ring-out field cabling without exposing sensitive active electronic components to testing voltages or circuit surges.

Once field cable continuity and loop resistance checks are complete, align the MI-WSS-PR-N sounder strobe body with the B501AP base, push inward, and twist clockwise until the active assembly locks firmly onto the base contacts. Inserting the unit automatically disengages the base shorting spring, integrating the sounder strobe into the active addressable loop circuit.

Electrical Installation Parameters

Parameter	Specification
Supply Voltage Range	15 to 29 VDC (Non-isolation & Isolation modes)
Standby Current (Non-Isolation)	120 µA
Standby Current (Isolation)	225 µA
Maximum Operating Current	14.5 mA (Sounder + Strobe combined, Tone 11 High Volume @ 15V)
Max Sound Output	97 dB(A) ±3 dB @ 1 m (Tone 8 High Volume @ 24V)
Visual Flash Rate	1 Hz (Visual Indicating Device)
Selectable Tone Options	32 tones with High, Medium, and Low volume settings

Calculate loop power budgets using the maximum 14.5 mA draw per unit to ensure the Morley-IAS addressable panel maintains adequate line voltage across all points during a general alarm evacuation sequence.

Operational Applications and Deployment Scenarios for Honeywell Morley-IAS MI-WSS-PR-N

The Honeywell Morley-IAS MI-WSS-PR-N (ERP Ref: KTI07001001MIPR) is an intelligent, loop-powered wall-mounted sounder strobe engineered for addressable fire alarm systems operating on the Morley-IAS protocol. Designed for reliable life-safety alerting, the device combines an EN54-3 approved audible sounder producing up to 97 dB(A) (±3 dB at 1 metre) with a 1 Hz visual indicating strobe housed in durable red plastic with a red lens. With a supply voltage range of 15 to 29 VDC, 32 selectable tones, 3 volume levels, and a compact weight of 0.238 kg, it serves targeted notification requirements across diverse commercial and industrial facilities.

Industrial Manufacturing Plants and Assembly Lines

In manufacturing floors and production areas with moderate ambient machinery background noise, the MI-WSS-PR-N provides dependable audible and supplementary visual notification. Engineers can configure the unit to high volume mode (achieving up to 97 dB(A) on Tone 8 at 24 VDC) using distinct tones among the 32 available selections to overcome acoustic interference.

The integrated 1 Hz visual flashing indicator delivers supplementary directional alerting across sightlines where personnel might be wearing light hearing protection. Note that the unit functions as a certified EN54-3 sounder and supplementary Visual Indicating Device (VID), rather than an EN54-23 primary Visual Alarm Device (VAD).

Warehouses and Logistics Distribution Centres

Racked storage facilities and expansive logistics hubs benefit from the wide coverage and flexible installation geometry of the MI-WSS-PR-N:

Loop Efficiency: Operates with a low standby current of 120 µA (non-isolation) or 225 µA (isolation) and a maximum alarm consumption of 14.5 mA (High Volume Tone 11 at 15V), preserving loop power budgets over long cable runs.
Synchronised Signalling: Automatic loop synchronisation ensures that sounder tones and the 1 Hz flash rates across multiple devices pulse identically along warehouse aisles, preventing disorienting echo or asynchronous strobing.
Cabling Flexibility: Large cable access supports rear and surface cable entry utilizing 1.5 mm² to 2.5 mm² wire gauges.

Corporate Offices, Commercial Complexes, and Shopping Malls

In high-density commercial premises such as multi-tenant office complexes and shopping malls, system designers can match sound levels to localized acoustics by setting the output to Low or Medium volume. The two decimal rotary switches simplify manual addressing during multi-floor fit-outs, while the standard red body and red lens maintain clear identification of dedicated life-safety hardware.

Hospitals, Clinics, and Healthcare Campuses

Clinical wards, treatment facilities, and diagnostic centres require distinct, staged evacuation patterns to assist orderly movement. Deploying the MI-WSS-PR-N enables fire safety teams to configure tone-dependent warning stages using the 32 on-board tones. When mounted to the standard B501AP common base, pre-installation loop continuity can be confirmed using the base's integrated shorting spring before inserting active heads.

Educational Spaces, Libraries, and Places of Worship

Quiet institutional zones, such as libraries, seminar spaces, and worship halls, can utilize lower volume settings to deliver balanced, non-distorting alarm audio. The shared B501AP base mechanical footprint—identical to Morley-IAS addressable smoke and heat detectors—ensures uniform aesthetic integration across ceilings and walls without custom mounting adapters.

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