Hanwha NOA-E2PW8 Access Power Integration Enclosure
The NOA-E2PW8 is a factory-assembled, pre-configured 8-channel power distribution and relay integration enclosure engineered to compress field assembly and commissioning time on mid-scale distributed access control deployments. Rather than assembling enclosures from modular components on-site—a process that typically consumes 8–12 hours of skilled labor, introduces wiring errors, and delays final testing—the NOA-E2PW8 arrives complete with internal harnesses, terminal blocks, PTC protection circuits, and relay modules already installed and factory-tested. You move from truck to operational system in a single shift.
Key Features
- Factory-wired architecture with integrated relay and power distribution: All internal connections, PTC fusing, and relay terminations are pre-installed and tested at the factory. This eliminates the most common on-site errors—reversed polarity, loose terminations, and missing fuses—and cuts commissioning time by 60–70 percent compared to field-assembled alternatives. For integrators juggling multiple concurrent deployments, this translates directly to higher throughput and fewer callback visits.
- eFlow6NB network-managed power supply delivering 10A @ 12/24VDC: Provides enough capacity to power one IC2 (2-door Network Controller) and three downstream RI2M (Reader Interface) modules simultaneously, with reserve capacity for ancillary devices like door sensors or request-to-exit buttons. Network management means AC status, battery faults, and low-voltage warnings appear in your control software—you no longer need to walk the enclosure to check status indicators. For remote or distributed sites, this visibility is critical for uptime tracking and scheduled maintenance.
- 8 independent relay outputs with 2.5A per-channel polycarbonate thermal (PTC) fusing: Each relay is individually protected, so a short circuit on one electromechanical strike does not disable the remaining relays or trip a main breaker. PTC fuses reset automatically when the fault clears, eliminating call-backs for field-replaced fuses. For deployments with 2–4 access points, this channel density handles the load without requiring expansion modules.
- Dual-voltage support (12VDC and 24VDC) with integrated VR6 regulator: Run 12VDC reader interfaces and 24VDC magnetic locks on the same enclosure without staging multiple power supplies or managing separate circuits. The regulator logic is built-in, so you avoid field configuration errors and reduce parts inventory at branch locations.
- Battery backup supervision for up to four 12VDC/7AH batteries: The enclosure includes battery monitoring that detects faults, tracks charge status, and triggers graceful shutdown alerts. For sites where access denial during power loss creates liability (hospitals, data centers, secure facilities), this supervised backup architecture is essential. Capacity for four 7AH batteries provides 4–6 hours of hold-time on a typical 2-door controller and reader load.
- 16 AWG galvanized steel backplane with pre-labeled terminal blocks and knockouts: Conduit entry includes one 2-inch opening and 16 pre-installed knockouts (1/2" and 3/4") for flexible field routing without custom drilling. Pre-labeled harnesses accelerate technician training and reduce assembly errors on the bench. This level of field-readiness matters most when deploying across multiple locations or working with junior technicians.
- CE compliance with integrated per-channel protection: Meets European EMC and safety standards out of the box. Every distribution rail is protected against short-circuit and overcurrent faults—no supplemental field fusing or protection verification required during commissioning.
- Lifetime warranty on Altronix eFlow6NB power supply components: The integrated supply carries manufacturer lifetime coverage, reducing long-term capital replacement costs and simplifying spare-parts provisioning across a multi-site customer base.
Integration and Compatibility
The NOA-E2PW8 integrates with Hanwha access control systems, specifically the IC2 Network Controller and RI2M Reader Interface product line. The enclosure provides relay switching for electromechanical strikes, magnetic locks, and request-to-exit (RTE) devices typical of 2–4 door access configurations. Power distribution is managed via the integrated eFlow6NB supply; relay switching is handled by pre-wired relay modules inside the enclosure. Network integration with Hanwha control software enables remote monitoring of power status, battery conditions, and fault alerts. For system architects planning distributed access control architecture, the NOA-E2PW8 serves as a standardized power and relay node, reducing per-location assembly complexity and accelerating rollout across facilities with consistent hardware footprints.
Physical and Environmental Specifications
The enclosure is constructed from 16 AWG galvanized steel, providing corrosion resistance and structural rigidity for wall or cabinet mounting. Pre-installed conduit knockouts and labeled terminal blocks support flexible field routing without custom drilling or fabrication. The unit is designed for indoor wall mounting in secure equipment closets or cabinets, not outdoor or high-vibration environments. Operating temperature range and humidity specifications follow standard commercial HVAC environments (typical −10°C to +50°C); confirm final environmental limits in the detailed datasheet.
Frequently Asked Questions
Q: Can the NOA-E2PW8 power a 4-door access system directly?
A: The eFlow6NB supply (10A @ 12/24VDC) can power one IC2 controller and three RI2M reader interfaces with reserve capacity. If your 4-door system uses a single 4-door controller (not separately available in the current Hanwha line) or requires expansion beyond one controller and three readers, you would need to evaluate a second NOA-E2PW8 or a larger power and relay frame. Confirm your final system architecture with the access control engineer before procurement.
Q: What happens if a relay fails or a device shorts?
A: Each relay is protected by a 2.5A polycarbonate thermal fuse (PTC). If a locking device shorts, the PTC fuse on that channel opens the circuit, protecting the remaining relays and the power supply. The PTC resets automatically when the fault is cleared, so you do not need to replace a fuse in the field. However, you must still identify and repair the faulty device (strike, lock, or wiring) to prevent the fault from recurring.
Q: Does the NOA-E2PW8 require a separate UPS for battery backup?
A: No. The enclosure is designed to accept up to four 12VDC/7AH batteries internally, with integrated battery monitoring and supervised charging. This provides local backup power for access control without requiring a separate UPS system. However, the AC-to-DC eFlow6NB supply itself is not battery-backed; a power loss still interrupts the charger. For continuous mains power monitoring and graceful shutdown at remote sites, confirm battery capacity and hold-time requirements with your control software provider before final sizing.
Q: Is the NOA-E2PW8 compatible with non-Hanwha reader interfaces or controllers?
A: The enclosure is engineered for the Hanwha IC2 and RI2M product line and is factory-wired with that integration in mind. Compatibility with third-party readers or controllers is not documented in the manufacturer evidence and should not be assumed. If you require integration with other brands, consult the integrator support team with your specific device models.
Q: What is the expected hold-time with four 7AH backup batteries?
A: A typical IC2 controller and three RI2M reader interfaces consume approximately 4–6A under normal operation. With four 7AH batteries (28AH total), theoretical hold-time ranges from 4–7 hours, depending on device load and battery age. This is a rough estimate; conduct a load analysis and battery discharge test specific to your deployment to confirm actual hold-time for your site.
Q: Can the NOA-E2PW8 be wall-mounted or does it require cabinet installation?
A: The enclosure is designed for wall or cabinet mounting in a secure equipment area. Mounting hardware and method are not detailed in the available evidence; confirm mounting hardware availability and load-bearing requirements with the product datasheet or integrator support before installation planning.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The NOA-E2PW8 addresses a real pain point in distributed access control: field-assembled power and relay enclosures are a source of wiring errors, lost commissioning time, and warranty callbacks. This unit arrives from the factory complete, tested, and labeled—you install it, wire the field devices to the terminal blocks, and move on. For integrators managing multiple concurrent 2–4 door deployments, that shift from assembly to commissioning is a material cost reduction and a quality-of-life improvement.
Technical Highlights:
- eFlow6NB 10A @ 12/24VDC supply: Sufficient to power one IC2 controller and three RI2M readers simultaneously, with margin for sensors and request-to-exit devices. Network management of AC and battery status eliminates blind spots on power health—critical for remote facilities where site visits are expensive.
- Per-channel 2.5A PTC fusing: A shorted strike or magnetic lock takes down only its own relay, not the entire enclosure or main breaker. PTC resets automatically, meaning fewer field service calls for blown fuses. This architecture scales gracefully—you lose one door, not four.
- Dual 12/24VDC support with integrated regulation: Eliminates the need to stock and wire two separate power supplies. Your technicians can grab one enclosure kit and deploy it regardless of whether the site uses 12VDC readers or 24VDC locks. Reduces parts proliferation and training burden across a multi-location rollout.
- Supervised battery backup for up to four 7AH cells: Internal monitoring detects battery failure before a power loss occurs, preventing catastrophic access denial. Four 7AH batteries provide roughly 4–7 hours of hold-time depending on load—enough for most mid-scale sites to ride out a typical brief outage or coordinate a graceful access denial.
- Lifetime warranty on Altronix eFlow6NB components: The integrated supply doesn't need replacement during the life of the controller system. This reduces long-term cost of ownership and simplifies spares management, especially important if you support dozens of locations with heterogeneous hardware ages.
Deployment Considerations:
- Channel capacity is the limiting factor: Eight relays handles 2–4 doors comfortably; if your site scales to 5+ doors, you'll need a second NOA-E2PW8 or a larger expansion frame. Plan your relay budget early in the design phase, not during cutover.
- Battery hold-time is not infinite: Even with four 7AH batteries, you get 4–7 hours—nowhere near a full 24-hour denial scenario. If the site requires extended access denial during mains loss, you need a real UPS for the entire control system, not just the power distribution enclosure. Set expectations with your customer up front.
- Hanwha ecosystem only: The NOA-E2PW8 is optimized for IC2 and RI2M products. If your site has legacy Hanwha readers or third-party controllers, confirm compatibility before spec'ing. Do not assume universal relay interface compatibility.
- Temperature and humidity: The enclosure is rated for standard commercial indoor environments (roughly −10°C to +50°C). If you're installing in an uncontrolled closet or outdoor shelter, confirm thermal limits and add climate control if needed. Batteries especially lose capacity in cold climates.
Bottom Line: The NOA-E2PW8 is the right choice if you're rolling out 2–4 door Hanwha access control systems across multiple locations and want to eliminate on-site power enclosure assembly. The factory wiring, per-channel fusing, and integrated battery monitoring mean fewer commissioning delays and fewer callback visits. For a single large campus with a dedicated on-site technician team, a custom-built enclosure may still make sense; for integrators and consulting engineers managing distributed deployments, the time and quality savings justify the unit cost.
