DC power and temperature control
Power and thermal management sized for the operating range
Is this the right product?
Can it integrate with my BoP, and is there enough data for a technical review?
HXS-2 is a stack for customers designing their own power, circulation, separation and safety systems. Performance evidence, interfaces and service conditions must be reviewed together.
Choose this product when
- You are developing your own BoP or system and need a validated stack
- You need a spare or replacement stack for an existing system
- You want to evaluate performance and durability at stack level yourself
Product and supply boundary
The BoP before and after the stack remains in your integration scope
HXS-2 includes the stack, interface specifications and operating guidance; the customer designs the power, circulation, separation and safety systems.
HXS-2
23-cell stack with interfaces and operating guidance
Circulation, separation and safety
Electrolyte loop, gas-liquid separation and site safety systems
Included supply scope
- Compression-assembled stack and product-specific connection specifications
- Recommended operating conditions and available performance data
- Exterior/enclosure-only STEP model on request (internal parts and flow fields excluded)
Customer preparation
- Electrolyte circulation loop and pump (standard flow 4 L/min)
- DC power supply sized for the operating current range
- Temperature control, gas and liquid separation, hydrogen safety equipment
- Management of the anode to cathode pressure difference (a larger difference increases crossover)
Validation evidence
See the conclusion first, then open the full test data
Measured results, catalogue data and design targets remain clearly separated. Full charts retain their test conditions.
The ambient and pressurized curves show full-stack voltage across current.
Stack voltage and H₂-in-O₂ were recorded together during constant-current long-run operation.
Individual cell voltages show the uniformity across all 23 cells.
Open full charts and test conditions3 datasets
MEASURED
The ambient and pressurized curves show full-stack voltage across current.
i-V curve · 23-cell full stack · 0.1 M KOH · 50 °C · ambient/pressurized
MEASURED
Stack voltage and H₂-in-O₂ were recorded together during constant-current long-run operation.
Published data window · 2,281 h · 0.3 M KOH · 40 °C · 50 A · full-run linear fit 80.2 µV/h/cell
MEASURED
Individual cell voltages show the uniformity across all 23 cells.
23-cell voltage uniformity (avg 1.689 V · σ 0.010 V)
Application context
See where this product has been used
These records describe the selection purpose and application context, not customer-verified performance.
A cell development engineer chose it as the platform for their own materials
It was brought in as the stack into which their in-house cell development work would be assembled. That is why what they checked before ordering was not performance figures but the dimensions of each component.
View application context →
A stack you can load your own catalyst and membrane into
They were looking for an AEM electrolyser in the 100 to 500 cm² range for a pilot test setup. The purpose was not finished hydrogen production but evaluating catalysts and membranes they develop themselves.
View application context →Technical details
Open only the details you need
Full specifications, support terms and review documents remain available without interrupting the first product decision.
Complete product specifications15 items
| H₂ production | Up to 500 L/h (1 kg/day) |
|---|---|
| Efficiency (HHV) | 88% (BOL · 0.3 M KOH · 60 °C) · 45 kWh/kg-H₂ |
| Long-run validation | 2,400 h+ · 23 cells · 0.3 M KOH · 40 °C · 50 A · approx. 77 µV/h/cell |
| Rated operating condition | 0.1 M KOH · 50 °C (negotiable) |
| Energy use | 2 kW (at 50 A) |
| Water consumption | 420 mL/h (50 A) |
| Number of cells | 23 |
| Active area | 100 cm² (anode) / 79 cm² (cathode) |
| Electrodes | HXP-an · HXP-ca |
| Dimensions | 190 × 210 × 215 mm |
| Weight | 19 kg |
| Structure | NiFe anode · Pt/C cathode · AEM |
| Fluid ports | KOH IN 3/8″ · O₂+electrolyte OUT 3/8″ · H₂ two ports 1/4″ (double-ferrule) |
| DC terminals | M6 · torque 4–6 N·m |
| External circulation | 4 L/min (standard) |
Support, lead time and commercial terms3 items
Service & reassembly
Disassembly and reassembly require our dedicated gaskets and about 7 tonnes of clamping force, so conditions are agreed with us in advance. Return service can replace only the MEA and reuse the hardware; the service scope and terms are fixed in the quotation.
Lead time & status
Available · 4 weeks from PO acceptance
Commercial terms & origin
EXW basis; DAP and other terms by agreement. Country of origin is the Republic of Korea, with certificate of origin provided.