EVLINK · HIGH VOLTAGE COOLANT HEATER · ALL MODELS

High Voltage Coolant Heaters

Find the configuration that fits your vehicle—not just your power target. Compare mounting, coolant connections and electrical interfaces across 22 EVLINK PTC coolant heater configurations.

Shortlist the physical configuration first, then confirm power, voltage, coolant conditions, controls and validation scope for your project.

PORTFOLIO

8

Product series

ALL MODELS

22

Distinct configurations

COMPARE

1–3

Models to shortlist

Q Series · QA Amphenol socket configuration shown

START WITH THE CONSTRAINT

What Is Holding Back Your Heater Selection?

Move from the vehicle constraint to the most relevant configuration group.

Limited package space?

Compare the E, W and Z reference envelopes, then check connectors, hoses and service clearance.

Harness already defined?

Compare socket, connector and flying-lead arrangements without assuming interchangeability.

Difficult hose routing?

Compare B-Series S-bend and straight-pipe configurations and request the installation drawing.

AC supply or DC supply?

Keep the A7 three-pin AC configuration separate from DC heater selections.

THE COMPLETE RANGE

Explore All Coolant Heater Configurations

All 22 configurations are present as crawlable, editable page content. Use the series navigation to move through the catalogue.

A SERIES · 7 CONFIGURATIONS

A Series High Voltage Coolant Heaters

Compare mounting arrangements, connector options and the separately identified AC configuration.

A SERIES

A1 · Two-pin DC

Sheet-metal mounting bracket

Compare this configuration when your project calls for a two-pin DC interface and a separate bracket.

A SERIES

A2 · AN01

AVIC connector + sheet-metal bracket

Explore an AN01 connector configuration while retaining a sheet-metal mounting arrangement.

A SERIES

A3 · AN01

AVIC connector + integrated bracket

Compare with A2 when the mounting arrangement, rather than the connector family, is your main constraint.

A SERIES

A4 · AN02

Flying-lead configuration

Evaluate lead routing and mounting clearance together for your installation.

A SERIES

A5 · AZ

Amphenol + integrated bracket

Shortlist an integrated mounting option for an Amphenol-based interface review.

A SERIES

A6 · AZ

Amphenol + sheet-metal bracket

Compare with A5 if your chassis mounting arrangement favors a separate bracket.

A SERIES

A7 · Three-pin AC

AC configuration, not a DC substitute

Start with your AC supply specification; confirm the electrical configuration before selecting this variant.

B SERIES · 5 CONFIGURATIONS

B Series High Voltage Coolant Heaters

Compare pipe geometry and connector arrangements for different hose and harness layouts.

B SERIES

B1 · BA01

Six-pin low-voltage interface

Start the interface discussion with your low-voltage harness and required pinout.

B SERIES

B2 · BA

S-bend coolant pipes

Compare pipe geometry when the hose approach direction limits your layout.

B SERIES

B3 · BA

Straight coolant pipes

Review this straight-pipe arrangement against your hose route and service access.

B SERIES

B4 · BG

Guoweitong socket configuration

Explore this socket option when defining your project’s mating connector requirements.

B SERIES

B5 · BN

AVIC socket configuration

Compare the AVIC interface with the other B-Series connector arrangements.

E SERIES · 1 CONFIGURATION

E Series High Voltage Coolant Heaters

A low-profile EG configuration with a published 98 mm reference height.

E SERIES · SINGLE CONFIGURATION

E Series · EG

98 mm reference height

Start here when vertical package space is a key constraint, then check the full service envelope.

H SERIES · 2 CONFIGURATIONS

H Series High Voltage Coolant Heaters

Compare the high-voltage socket configuration and the low-voltage flying-lead configuration.

H SERIES

H Series · HV socket

Xinghua high-voltage connector

Compare the high-voltage connector arrangement against your existing harness plan.

H SERIES

H Series · LV lead

Low-voltage flying lead

Explore the lead arrangement where low-voltage harness routing needs a different connection location.

K SERIES · 1 CONFIGURATION

K Series High Voltage Coolant Heaters

A compact configuration with separate high- and low-voltage flying leads.

K SERIES · SINGLE CONFIGURATION

K Series · KA

High- and low-voltage flying leads

Review separate lead routes and connection locations for both electrical interfaces.

Q SERIES · 4 CONFIGURATIONS

Q Series High Voltage Coolant Heaters

Four distinct socket and flying-lead arrangements; similar labels do not establish interchangeability.

Q SERIES

Q Series · QA01

High-voltage flying-lead option

Compare a lead-based high-voltage arrangement with the Q-Series socket options.

Q SERIES

Q Series · QB / AVIC

AVIC two-pin connector option

Use the interface image as a starting point for a two-pin connector and mating-part review.

Q SERIES

Q Series · QA

Amphenol socket option

Explore the socket arrangement alongside your electrical and coolant packaging requirements.

Q SERIES

Q Series · QB / Amphenol

Alternative connector configuration

Compare this connector arrangement separately; matching series names do not establish interchangeability.

W SERIES · 1 CONFIGURATION

W Series High Voltage Coolant Heaters

A narrow WA configuration with a published 110 mm reference width.

W SERIES · SINGLE CONFIGURATION

W Series · WA

110 mm reference width

Start with this narrow package when lateral space is limited, then allow for hoses and connectors.

Z SERIES · 1 CONFIGURATION

Z Series High Voltage Coolant Heaters

A low-profile ZA configuration with a published 90 mm reference height and Ø20 mm ports.

Z SERIES · SINGLE CONFIGURATION

Z Series · ZA

90 mm reference height

Evaluate a low-profile package with two same-side coolant connections.

BUILD A SHORTLIST

Compare the Differences That Affect Integration

Use the same decision fields for every shortlisted model. Request configuration-specific specifications when a field is not published.

Electrical interface

Connector family, socket or flying lead, mating component, keying, HVIL, pinout and cable routing.

Mechanical package

Reference envelope, mounting arrangement, orientation, fasteners and service clearance.

Coolant circuit

Port size and direction, hose engagement, bend radius, coolant, flow, pressure and pressure drop.

Operating conditions

Required heat duty, supply window, inlet temperature, flow, ambient and control strategy.

Published dimensions are reference values, not a complete installation envelope. Do not use a connector brand name as proof of mating compatibility.

SYSTEM REVIEW

A Heater Must Fit the Complete Thermal System

Power alone does not establish suitability.

Nominal, minimum and maximum supply voltage; AC or DC requirement
Required thermal duty at defined inlet temperature and coolant flow
Coolant composition, pressure limit and allowable pressure drop
Mounting envelope, hose routing, connectors and service access
Control commands, feedback, faults and system responsibility

TECHNICAL RECORDS

Request Documents for the Exact Configuration

Confirm document availability, revision and applicability.

Released product specification and 2D / 3D installation drawing
Electrical interface and mating-component definition
Control / CAN documentation where applicable
Relevant electrical, environmental and validation records
Sample inspection requirements and approved commercial terms

APPLICATION PATHWAYS

High Voltage Coolant Heater Application Scenarios

Application pages explain the vehicle duty. The model review confirms the exact configuration and evidence.

Electric Bus

Separate battery-loop, cabin-loop and auxiliary demands before selecting the heater duty.

Electric Truck

Review battery or cabin heating against vehicle supply, route duty and chassis packaging.

Electric Mining Truck

Evaluate low-temperature duty, dust, vibration, altitude and sustained haul operation.

Construction Machinery

Review cold start, vibration, contamination, hose protection and restricted space.

Agricultural Machinery

Evaluate seasonal operation, field service, packaging and mixed-duty thermal needs.

Battery & Cabin Circuits

Define the circuit purpose, architecture, pump and valve strategy before sizing.

CIRCUIT DEFINITION

Which System Are You Heating?

The same vehicle category can require very different thermal duties.

Battery preheating and temperature conditioning

Define target coolant temperature, ambient conditions, pack thermal mass, available electrical power and required warm-up time.

Cabin and auxiliary liquid-heating circuits

Define cabin demand, heat-exchanger conditions and interaction with pumps, valves and other heat sources.

Cold-start and warm-up support

Provide the lowest start temperature, coolant mixture, voltage limits and expected operating cycle.

COMMERCIAL VEHICLE REVIEW

Electric Trucks and Light-Duty Vehicles

Packaging and harness choices can matter as much as the target heating power.

Nominal and minimum / maximum supply voltage
Target duty at defined coolant temperature and flow
Available mounting envelope and hose approach
Harness connectors, controls and service access
Route duty, charging windows and cold-weather target

OFF-HIGHWAY REVIEW

Construction and Off-Highway Machinery

Review low-temperature operation, mounting loads, contamination and protected cable and hose routing.

Minimum ambient and coolant start temperatures
Operating cycle and required warm-up time
Mounting loads, orientation, shock and vibration
Hose, connector and cable protection requirements
Dust, debris, washdown and validation scope

PROJECT WORKFLOW

From Initial Requirements to a Sample Enquiry

Each step closes a selection or integration risk before a commercial commitment.

Share the Constraints

Send the application, supply, thermal target, available space and interfaces—even if some values remain open.

Shortlist the Configuration

Compare package, mounting, coolant routing and electrical-interface arrangements.

Review the Documents

Check the configuration-specific specification, drawing, interface and evidence scope.

Define the Sample Request

Confirm sample specification, quantity, quotation, timing and acceptance requirements.

SUPPLIER REVIEW

Evaluate the Supplier and the Exact Configuration

Factory artwork can support a supplier review, but product approval requires records matching the selected heater.

Released specification and drawing revision
Connector and mating-component definition
Applicable electrical and environmental reports
Prototype inspection and acceptance requirements
Confirmed quotation, timing and commercial terms

SELECTION QUESTIONS

What Buyers Ask Before Shortlisting

Answers are deliberately configuration-dependent so purchasing and engineering teams know what to confirm.

How do I choose a high voltage coolant heater?

Start with the required thermal duty and electrical supply, then compare package, coolant connections, mounting and controls. Confirm performance at the required coolant temperature and flow rather than selecting by a headline power value alone.

What differs between the A, B, E, H, K, Q, W and Z series?

The collection contains different package shapes, mounting arrangements, coolant-pipe layouts and electrical interfaces. Use the cards to shortlist a physical configuration, then request the released specification for that exact model.

Are all configurations DC-powered?

No. A7 is identified in the supplied material as a three-pin AC configuration. Confirm supply type, phases, voltage range, connector definition and protection requirements before selection.

Are connectors from the same brand interchangeable?

Not necessarily. Confirm connector series, mating part, keying, pinout, HVIL, current rating and environmental sealing. A brand name or similar appearance does not establish compatibility.

Can I select by the dimensions shown on this page?

Use the published reference dimensions for initial screening. The released installation drawing must also account for mounting hardware, hose engagement and bend radius, mating connectors, cable routing, tolerances and service access.

What should I send if my specification is incomplete?

Send the vehicle or equipment type, circuit purpose, known voltage range, thermal objective and available space. Identify the constraints that cannot change and list any open requirements for engineering review.

Which documents should purchasing and engineering request?

Request the configuration-specific specification and drawing, connector and mating-part definition, applicable control documentation, relevant validation records, sample inspection requirements and confirmed commercial terms.

PROJECT ENQUIRY

Tell Us What You Know About Your Project

Share the vehicle or equipment type, circuit purpose, voltage window, thermal target, coolant conditions, available space, preferred configurations, required documents, sample timing and forecast volume.