Tyco PS-136 Power Supply Module 509.023.051

Tyco PS-136 Power Supply Module (509.023.051)

The Tyco PS-136 Power Supply Module (Tyco Part Number: 509.023.051, internal hardware designation PS136-1-09) is a ruggedized, chassis-mounted, switch-mode power supply unit (PSU) and integral lead-acid battery float charger. Built specifically for demanding maritime automation and life-safety installations, the PS-136 serves as the primary power unit for Tyco / Thorn Security T1200, T1200-C, T1216, and T1232 conventional marine fire detection control panels.

Operating on an auto-ranging universal AC mains supply (110V to 230V AC RMS nominal), the PS-136 generates a stabilized, low-noise nominal 27.3 VDC output rated at 5.0 A continuous load. The unit integrates active brownout detection, automatic temperature-compensated battery float charging, continuous battery health monitoring, deep-discharge cut-off circuitry, and an internal low-vibration forced-cooling fan. Designed to meet strict EN54-4 / Marine Equipment Directive (MED) power supply standards, the PS-136 delivers uninterruptible secondary autonomy even in high-ambient tropical machinery spaces.

Model Details:

• Manufacturer / Brand: Tyco Fire Protection Products
• Model Name: PS-136 / PS136
• Manufacturer Part Number (MPN): 509.023.051
• PCB Assembly / Internal Identifier: PS136-1-09 / 2000695
• Related Lower-Output Sibling: PS-40 (509.023.052, 1.5A variant)

Technical Specifications

Key Features

1. Universal Auto-Sensing AC Input: Wide operational envelope handling 110V to 230V AC nominal (85 VAC brownout threshold to 264 VAC max) at 47–63 Hz without manual jumper switching.
2. High-Capacity 5.0A Output & Intelligent Float Charging: Delivers 5.0 Amperes total continuous current dynamically shared between the panel quiescent/alarm loads and charging up to 17Ah VRLA emergency standby battery banks.
3. Integrated Battery Health & Deep-Discharge Protection: Continuously assesses battery loop impedance and internal resistance, disconnecting the battery automatically below ~15.7 VDC to prevent irreversible cell damage and short-circuit faults.
4. Negative Temperature Coefficient (NTC) Float Compensation: Thermally adjusts output float voltage to eliminate cell dry-out in extreme engine room heat and under-charging in unheated emergency battery lockers.
5. Full EN54-4 Fault Diagnostics & Monitoring: Comprehensive diagnostic status signaled via onboard LEDs and ribbon cabling to the motherboard, actively signaling mains brownout, charger collapse, earth faults, and battery disconnection.

Applications

• SOLAS Marine Fire Alarm Systems: Central primary power for cargo ships, container carriers, bulkers, chemical tankers, and offshore support vessels operating Tyco T1200 marine consoles.
• Offshore Oil & Gas Platforms: Power infrastructure for production modules, accommodation barges, and FPSO central fire alarm networks.
• Commercial & Marine Shipbuilding: Direct swap-in replacements during 5-year special surveys, dry-dock vessel refits, and automation overhauls.
• Class-Mandated Onboard Spares: Critical emergency replacement stock kept in shipboard electro-technical stores (ETO inventory) to prevent detention during Port State Control (PSC) inspections.

Pre-Installation Safety & Chassis Isolation

• Kill the Dual Source: The PS-136 receives power from both the 110/230VAC ship’s distribution line and the 24V standby battery array. Always throw the main AC breaker feeding the fire alarm panel and unseat the in-line battery fuse before pulling or servicing the PSU.
• Earth Integrity Is Mandatory: The marine casing must be properly tied down. Always ensure the internal safety earth grounding strap between the PS-136 chassis and the panel enclosure backing plate has an impedance of less than 0.1 Ω. High chassis float on ungrounded marine IT networks induces false earth-fault indications on the C1626/C1627 motherboard.

Terminal Wiring & Signal Cable Routing

• Mains Connections: Fasten input leads into terminals L, N, and E. Strip no more than 6 mm of insulation to prevent stray copper strands from arcing against the chassis base.
• Polarity Check: When hooking up battery leads, verify with a calibrated digital multimeter that terminal +BAT routes to cell #1 positive, and -BAT routes through the internal harness to cell #2 negative. Reversing polarity will blow the secondary protection fuse and can compromise the regulator IC.

Frequently Asked Questions

Can the Tyco PS-136 (509.023.051) directly replace the older PS-40 power supply?

The PS-136 delivers 5.0 Amperes, whereas the PS-40 is rated for 1.5 Amperes. While both provide a nominal 27.3 VDC output and share similar chassis mounting footprints within the T1200 series, the PS-136 is required for panels operating 16 to 32 zones (T1216 / T1232) or systems handling heavy sounder circuit loads. Check your panel’s mechanical tray clearance and mounting configuration before substituting.

What causes an AC fault on the fire panel when 230V mains is confirmed present?

The PS-136 includes an intelligent brownout monitor that samples continuous peak and RMS voltage. If high harmonic distortion (THD) exists on the ship’s generator output, or if input voltage drops below 85% of nominal, the module signals a fault condition to the motherboard even if a basic voltmeter reads near nominal. Inspect upstream isolation transformers and check the terminal block for loose connections.

Does the PS-136 require manual adjustment for 110V or 230V AC lines?

No. The PS-136 features an auto-ranging switch-mode input stage. It automatically detects and runs on single-phase AC voltages between 110V and 230V nominal (47–63 Hz) without requiring voltage-selector jumpers or switch settings.

How do I know if the internal cooling fan on the PS-136 is failing?

The fan is designed to operate continuously while the module is powered. A light, steady hum is normal. High-pitched rattling, grinding bearing noises, or complete fan stoppage indicates mechanical failure. If the fan ceases operation, thermal safety circuits will eventually trip the PSU under moderate to high loads to prevent power-semiconductor breakdown. Replace the unit immediately if the fan fails.

What batteries should be installed with the PS-136 in a marine installation?

The internal charger is calibrated to charge two 12V Valve Regulated Lead-Acid (VRLA / AGM) batteries wired in series to produce a 24V float string (typically 7Ah, 12Ah, or up to 17Ah capacities depending on your vessel’s required 24/36-hour standby autonomy profile under SOLAS). Do not connect unsealed flooded batteries or lithium cells without specialized factory charging interfaces.