HTC Counter Flow
HTC042B
42 W/°F htc counter flow air-to-air heat exchanger. 48VDC input.
Starting Price
$2,755
Integrator pricing available • Volume discounts on 4+ units
- Hentzen P2234WPC-2 Off White
- RAL 7035 Light Gray
- Aluminum Quoted
- Stainless Steel (Type 4X) Quoted
- Special / custom paint Quoted
Ordering as HTC042BW* — the * is VoltAire’s engineering revision, set at order review.
1 unit built to order — estimated shipment in 4–6 weeks (by Nov 24).
Super Cool Coverage — 2 years of coverage, 30-day returns, no restocking fee. Terms
Technical Specifications
HTC042B at a glance
- Capacity
- 42 W/°F (watts removed per °F of cabinet-to-ambient ΔT)
- Series
- HTC Counter Flow
- Flow Configuration
- Counter Flow
- Voltage
- 48VDC
- Fan Power (typical)
- 100 W
- Sound Level
- 66 dBa @ 3 m
- Outer Dimensions (W × H × D)
- 16.1 × 24.0 × 11.3″
- Return Opening (W × H)
- 13.50 × 9.29″
- Supply Opening (W × H)
- 13.50 × 4.19″
- Mounting Holes
- 10 × Ø0.31″ (M6) on a 16.10 × 24.00″ template (drawing, BC0217E p. 3)
- Weight
- 45 lbs
- Operating Range
- −40°F to 158°F (−40°C to 70°C)
Specifications subject to change. Always verify against the current spec sheet before final design submittal.
Model Number Decoded
What does HTC042B mean?
- H = Heat exchanger
- T = Telecom series (telecom)
- C = Counter Flow configuration
- 042 = 42 W/°F capacity designation
- B = 48VDC input
Where HTC042B Fits
Best applications for this model
HTC042B is sized for cabinets where the internal heat load is in the range that 42 W/°F can move at your available temperature differential. As a quick rule of thumb, multiply 42 by your ambient-to-target ΔT to get the maximum heat load (in watts) this unit can handle. For example, at a 20°F ΔT this model removes 840W; at a 30°F ΔT, 1260W.
Watch: Cross Flow vs. Counter Flow
Common use cases
5G macro-site cabinets, BEAD broadband fiber huts, edge-compute enclosures, mid-size process control panels.
Voltage fit
Direct connection to −48V telecom plant . No inverter required. Battery-resilient cooling.
Other Models in the HTC Series
Need a different size or voltage?
Ready to spec HTC042B?
Quotes returned same day. Integrator pricing on request. Built and shipped from Orlando, FL with US-stocked replacement parts.
HTC042B Specs & Manuals
Specification sheet for your submittal, plus installation, wiring and troubleshooting.