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H SERIES · LV FLYING-LEAD CONFIGURATION
H2 Series 5–14 kW High Voltage Coolant Heater with Low-Voltage Flying Lead
An interface-focused PTC liquid-heater configuration for commercial EV projects that require a fixed low-voltage harness exit alongside a detachable high-voltage connection.
5–14 kW
Technical-panel rated power
400–1000 V
Published operating range
LV Pigtail
Low-voltage harness path
IP67
Published ingress protection
CONFIGURATION FIRST
Why the Low-Voltage Flying Lead Changes the Release Work
The heating specification is only one side of this configuration. The vehicle harness boundary must be agreed before drawings, samples and software are frozen.
01
Fixed Cable Exit
The low-voltage cable leaves the housing through a sealed gland, so length, routing and bend radius become part of the package release.
02
Vehicle-Side Termination
The project must define whether the pigtail is supplied bare, terminated or mated to a vehicle-specific connector.
03
Control Ownership
CAN, enable, status and fault wires require an agreed pinout, signal matrix and responsibility boundary.
HARNESS RELEASE
Freeze the Cable and Connector Boundary
The source images show a corrugated low-voltage lead exiting through a gland and a separate circular high-voltage connector. The exact parts and assignments are not published in the supplied artwork, so the project release must define them explicitly.
- Low-voltage cable length and exit direction
- Conductor count, gauge and insulation class
- CAN, enable, power and ground assignments
- Terminal or mating-connector responsibility
- High-voltage connector and HVIL definition
- Strain relief, sealing and service access
SELECTION GATE
When This Configuration Is the Better Starting Point
Choose around the vehicle harness architecture, not around a product photo.
USE
Fixed LV Harness Path
Start here when the project prefers a sealed low-voltage pigtail and can control its vehicle-side termination.
REVIEW
Detachable LV Interface
Review the alternate H-Series configuration when the vehicle requires a detachable low-voltage socket at the heater.
Do not release by connector appearance alone
Confirm controlled part numbers, keys, mating components, cable construction, pinout and supplier responsibility before quotation or prototype build.
MECHANICAL BASELINE
Package the Heater and Pigtail as One Assembly
The supplied product display lists 335 × 170 × 105.5 mm and Ø25 mm coolant ports. The fixed low-voltage lead adds a cable envelope that must be included in the vehicle package review.
- 335 × 170 × 105.5 mm published heater envelope
- Ø25 mm published coolant-port reference
- Cable exit, minimum bend radius and clip points
- Connector access, hose engagement and drainage
- Mounting fasteners, orientation and vibration loads
TECHNICAL SPECIFICATIONS
Published H-Series LV-Lead Baseline
Values are transcribed from the supplied technical and product-display artwork. Resolve the power-range conflict before publication.
Rated Power
5–14 kW series range; confirm the ordered configuration and rating conditions
Rated Voltage
Customizable — confirm the released project configuration
Operating Voltage Range
400–1000 V
Product Size
335 × 170 × 105.5 mm in the supplied product display
Coolant Port
Ø25 mm shown in the supplied product display
Weight
5 kg
Insulation Resistance
≥100 MΩ at DC1000 V, high-voltage section
Dielectric Strength
≥1200 V, ceramic heating element
Peak Current
≤1.5 × rated current
Ingress Protection
IP67
Operating / Storage Temperature
−40 °C to +85 °C
Communication
CAN bus with enable control
Control
PID control, fault self-diagnosis and automatic power limiting
Protection
Overvoltage, undervoltage, overcurrent, short circuit and overtemperature
EMC
Class 3 is listed; request the applicable standard and report scope
Warranty
2 years is listed; confirm configuration and regional applicability
INTEGRATION WORKFLOW
Move from Harness Definition to Vehicle Validation
The flying lead makes interface ownership visible. Freeze each layer in sequence.
01
Define
Set voltage window, cable construction, connector parts, pinout, CAN signals and fault behavior.
02
Package
Check routing, bend radius, sealing, mounting, coolant connections and service access.
03
Prototype
Inspect the cable assembly, mating fit, polarity, communication and coolant circuit before vehicle test.
04
Validate
Run the agreed electrical, thermal, EMC, ingress, vibration and durability scope.
CONTROL & PROTECTION
Turn Feature Names into Testable Requirements
A
Vehicle Commands
CAN requests, enable logic, wake-up, shutdown and restart behavior.
B
Heater Feedback
Status, measured values, derating, faults and diagnostic persistence.
C
Power Control
PID ownership, current demand, automatic power limiting and thermal limits.
D
Fault Response
Voltage, current, short-circuit and overtemperature thresholds and recovery.
APPLICATION FIT
Where a Fixed Low-Voltage Lead May Be Practical
Suitability depends on the vehicle architecture and environment, not the vehicle label alone.
01
Electric Trucks
Evaluate when the vehicle harness can accept a fixed LV lead and the released thermal duty matches the coolant circuit.
02
Electric Buses
Use as a candidate for battery, cabin or auxiliary liquid heating after checking duty, voltage, packaging and serviceability.
03
Construction Machinery
Evaluate after defining cable protection, vibration, contamination, temperature exposure and duty cycle.
PRODUCT VIEWS
Inspect the Cable Exit, Connector and Coolant Interfaces
These images support early visual review; use the released drawing for production packaging.
RELEASE EVIDENCE
Ask for Configuration-Specific Records
The source artwork lists certifications and performance classes, but a vehicle program needs records tied to the exact H-Series hardware, flying-lead assembly, connector, software and test scope.
- Released product specification and drawing
- Low-voltage harness drawing and bill of materials
- High-voltage connector and mating definition
- CAN document and software revision
- Applicable electrical, EMC, ingress and environmental reports
- Prototype inspection and project validation records
FAQ
H-Series Low-Voltage Flying-Lead Questions
The answers separate supplied facts from items that require a controlled project release.
This configuration is identified by the supplied folder as using an HA/AVIC high-voltage interface with a low-voltage flying lead. Confirm cable length, wire specification, termination, pinout and strain relief for the released project version.
The supplied technical panel lists 5–14 kW, while the supplied title artwork says 5–14 kW. This template temporarily follows the technical panel. Resolve the conflict before publishing, quoting or adding Product schema.
The supplied technical panel lists 400–1000 V and describes rated voltage as customizable. Confirm nominal voltage, minimum and maximum DC voltage and transient requirements for the exact release.
The supplied product-display artwork lists 335 × 170 × 105.5 mm and Ø25 mm coolant ports. Use the released drawing for tolerances, mounting points, hose engagement and service clearances.
Confirm cable exit and length, conductor count and gauge, insulation and temperature class, sealing, strain relief, terminal or mating connector, labels, CAN and enable assignments, and vehicle-harness responsibility.
The source lists CAN bus with enable control, PID control, fault self-diagnosis, automatic power limiting, plus overvoltage, undervoltage, overcurrent, short-circuit and overtemperature protection.
Send the voltage window, heat duty, coolant and flow, temperature targets, pressure limits, installation envelope, high-voltage connector, low-voltage harness definition, CAN requirements, validation scope, timing and volume.
PROJECT BRIEF
Send the Harness Details with the Thermal Requirements
A qualified recommendation needs both the coolant-heater duty and the vehicle interface boundary.
01
Electrical
Nominal/min/max voltage, current limit, grounding, insulation and HV connector.
02
LV Harness
Cable length, wires, gauge, pinout, termination, CAN, enable and strain relief.
03
Thermal
Heat duty, target heat-up time, coolant, flow, temperatures and pressure limits.
04
Program
Vehicle type, package, validation scope, sample timing, SOP and forecast volume.