As part of the BUM60 (Battery Unit Module, 60V-class) platform, the 3522-1004 features a sealed nickel-cadmium (NiCd) battery pack with a nominal capacity of 54 ampere-hours, configurable for either 12 VDC or 24 VDC system compatibility—making it exceptionally versatile across diesel generator sets, steam turbines, gas compressors, and marine propulsion systems. The “B” suffix denotes a ruggedized industrial enclosure suitable for panel or wall mounting in environments with high vibration, temperature extremes, or humidity. The full model string BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 encodes specific electrical, mechanical, and firmware configurations validated by WOODWARD for seamless integration. When paired with a compatible WOODWARD controller, the BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 ensures compliance with grid codes and safety standards requiring fail-safe backup power for prime mover controls.

Technical Specifications

Main Features and Advantages

Mission-critical ride-through for turbine and engine controls: The primary role of the BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 is to prevent uncontrolled shutdowns during utility power interruptions. In a gas turbine application, even a 200-millisecond loss of control power can cause a trip, leading to hours of restart procedures and lost revenue. With 54 Ah of NiCd capacity, this module can sustain a typical 2301A or 505E controller—and its associated electro-hydraulic actuators—for 30+ minutes, enabling orderly load shedding or transfer to backup generation. This capability is indispensable in black-start scenarios, islanded microgrids, and marine vessels where grid stability is absent.

Robust NiCd chemistry for industrial longevity: Unlike lithium-ion or lead-acid alternatives, the NiCd battery in the 3522-1004 offers exceptional cycle life (>2,000 cycles), wide temperature tolerance, and stable voltage discharge curves—even under high-current pulses required by servo valves. It performs reliably after years of float charging, with minimal capacity fade. The sealed design eliminates electrolyte leakage risks, making it safe for installation in control rooms or near sensitive electronics.

Seamless integration with WOODWARD ecosystems: The BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 is not a generic UPS—it is factory-configured to match the electrical profile and communication handshake of WOODWARD controllers. The “VC-A0-0093-0013-G003-0000” suffix ensures correct voltage regulation, charge algorithm, and status signaling. Dry contact outputs report real-time health to the main controller or plant DCS, enabling predictive maintenance before failure occurs. This tight integration reduces commissioning time and eliminates compatibility guesswork.

Ruggedized “B” series enclosure for harsh duty: The “B” in the model denotes an industrial-grade housing with reinforced terminals, vibration-resistant internal mounting, and corrosion-resistant hardware. This makes the 3522-1004 suitable for offshore platforms, locomotives, mining equipment, and combined heat & power (CHP) plants—environments where standard battery modules would degrade rapidly.

Application Field

The BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 is widely deployed in power generation facilities, where it backs up WOODWARD 505E controllers on natural gas-fired turbines used for peaking or grid stabilization. During a grid fault, the battery module maintains governor functionality, allowing the unit to stay synchronized or perform a controlled ramp-down—avoiding cascading outages. Similarly, in hydroelectric plants, it supports 2301A speed/load controllers during excitation system transients.

In the oil & gas sector, the 3522-1004 powers compressor station controls on pipelines, ensuring that emergency shutdown (ESD) valves receive commands even during brownouts. On FPSOs (Floating Production Storage and Offloading vessels), it provides backup for WOODWARD SPC-based engine management systems that regulate LNG carrier propulsion—where reliability directly impacts safety at sea.

Marine applications include cruise ships and naval vessels using WOODWARD governors for diesel-electric propulsion; the BUM60 module ensures that load-sharing and frequency control remain active during switchboard transfers. In industrial cogeneration plants, it protects steam turbine controls that manage both electrical output and process steam—preventing costly production halts in paper mills, refineries, or chemical plants. Across all these settings, the BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 delivers the silent, unwavering power resilience that keeps prime movers under command when it matters most.

Related Products

• 3522-1003: Lower-capacity BUM60 variant (36 Ah); for smaller controllers or shorter ride-through needs

• 3522-1005: Higher-capacity version (72 Ah); for multi-actuator or redundant control systems

• 505E: WOODWARD electronic governor commonly backed up by 3522-1004

• 2301A: Legacy analog/digital hybrid controller requiring stable 24 VDC from BUM60

• SPC (System Protection Controller): Modern WOODWARD platform compatible with BUM60 battery modules

• 5461-401: Battery charger module designed to work with BUM60 series

• 3522-2001: Mounting bracket kit for wall or panel installation of 3522-1004

• 5439-037: Status monitoring relay for remote BUM60 health indication

Installation and Maintenance

Pre-installation preparation: Before installing the BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000, verify compatibility with your WOODWARD controller’s voltage requirement (12 VDC or 24 VDC) and ensure the main DC power source includes proper overcurrent protection (typically a 10–15 A fuse). Mount the unit vertically in a well-ventilated area, maintaining at least 100 mm clearance on all sides for thermal management. Connect the output to the controller’s backup power input using shielded, twisted-pair cable rated for continuous DC service. Confirm that the dry contact alarm wires are routed to the DCS or local annunciator for “Low Battery” monitoring.

Maintenance recommendations: Although sealed, the NiCd battery in the 3522-1004 should undergo annual capacity testing using a WOODWARD-approved discharge tester. Inspect terminal tightness and look for signs of corrosion—clean with isopropyl alcohol if needed. Replace the unit if capacity falls below 80% of rated 54 Ah. Keep spare BUM60-12/24-54-B-001-VC-A0-0093-0013-G003-0000 modules in climate-controlled storage (15–25°C) and recharge every 6 months if unused. Never attempt to open or modify the enclosure—doing so voids safety certifications and risks exposure to hazardous materials.