Control Techniques | HVAC Drive H300 | Specialist AC Drive 1.1 kW to 2.8 MW (1.5 hp to 4,200 hp) 200 V / 400 V / 575 V / 690 V

HVAC Drive H300

Specialist AC Drive
1.1 kW to 2.8 MW
(1.5 hp to 4,200 hp)
200 V / 400 V / 575 V / 690 V

Overview
Specifications
Options
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Efficiency and Reliability in HVAC Systems

The HVAC Drive H300 Variable Frequency Drive (VFD) is the result of extensive research and decades of experience in the HVAC market. Designed for fan, pump, and compressor control, it delivers precise flow management, energy efficiency, and long-term reliability.

Part of the Specialist Series of industry-specific drives, the H300 builds on 50+ years of drives expertise, ensuring dependable performance for building automation and HVAC applications.

Compact Design for Maximum Flexibility

The HVAC Drive H300 is among the most compact VFDs in its class, saving valuable space, simplifying installation, and maximizing mounting flexibility.

Introducing The Specialist HVAC Drive, from the drive specialists

Features

A complete HVAC building automation solution

The HVAC Drive H300 is designed for fan, pump, and compressor control in HVAC applications. It includes all the features expected from a dedicated HVAC drive and more:

Optimised for HVAC applications
Advanced motor control for fans, pumps, and compressors
High energy efficiency and reliability

Building automation systems

Seamless integration with building automation systems with support for:

BACnet MS/TP onboard and BACnet IP option – BTL conformance tested for reliable operation
Modbus RTU

Custom software

Flexibility without a building management system using onboard PLC
Optional modules for custom application software

Fire mode

Allows the drive to run uninterrupted during a fire
Maximises smoke extraction in emergencies by disabling certain protection features

Low audible noise

Quiet motor operation with high switching frequencies up to 16 kHz
Intelligent 10-speed cooling fan for minimal noise

Conformal coated PCBs

High reliability with conformally coated PCBs as standard

Compact dimensions

Among the most compact VFDs in its class
Maximises mounting flexibility

Dual process PID loops

Built-in dual process PID loops
Operate independently or together for advanced functionality

Energy efficiency as standard

Up to 98% efficiency with minimal energy loss during conversion
Supports super high-efficiency permanent magnet motors
Dynamic Volts/Hertz control for optimal efficiency under low load conditions

Energy savings

Sleep, wake, and standby modes minimise energy loss
Onboard power metering with cost per kWh tracking

Thermistor monitoring

Temperature sensor input available for direct analogue input without a transducer

Extreme operating conditions

Operates in temperatures from -20°C to 55°C* (40°C standard, higher with de-rating)

Extended connectivity

Plug-in SI option modules for extended connectivity: BACnet IP, POWERLINK, EtherNet/IP, Modbus TCP/IP, PROFINET, PROFIBUS, DeviceNet, and CANopen

Quick commissioning

Smartcard for simplified maintenance and commissioning without a PC
SD card for parameter storage and data logging

Who Benefits from HVAC Drive H300?

Consultants and design engineers Meets all HVAC project specifications with a highly reliable product and support service – simply specify, install, and forget.
Contractors Fast, secure installation and easy commissioning.
Owners of commercial buildings Delivers maximum occupant comfort, energy savings, and rapid ROI.

IP65 Protection for Harsh Environments

The HVAC Drive H300 IP65 variant offers the same dedicated HVAC features as standard models, with full dust protection and resistance to low-pressure water jets. Ideal for outdoor and harsh environments, it reduces downtime and maintenance costs.

Standard & High IP Drives

Hand-Off-Auto keypad with real-time clock remains available in sealed casing.
Enables mix-and-match of standard and high IP drives in the same project for simplified qualification.

Save on installation

The High IP drive allows wall mounting close to the motor, reducing costs through:

No cabinet required
Shorter cable lengths
Lower labor time and installation costs

High Power Solutions

From small HVAC systems to large refrigeration plants, Control Techniques drives can handle it all:

Up to 500 kW in a single module
Lightweight design – up to 60 kg lighter than competitors
Compact footprint for easy integration

Pre-Engineered Motor Control Systems

Our DFS Series High Power Freestanding Drives come pre-assembled with all necessary components, saving engineering time. Flexible configurations include:

Load switch, fuses, filters, and more
Optional door-mounted HMI with real-time clock

Quick delivery via our online configurator – saving weeks compared to industry standards.

Software

Connect - intuitive commissioning software
Connect is our latest drive configuration tool for commissioning, optimising and monitoring drive/system performance.
Download

Energy savings estimation
Control Techniques’ energy optimisation software helps you analyse energy usage for flow applications and quantify the cost savings of using your Control Techniques drive.
- Estimation of energy usage using Control Techniques variable frequency drives for HVAC applications
- Identify the payback period through the energy savings from using a HVAC Drive H300 over conventional control methods
Download

This product comes with 5-year warranty as standard

No registration. No extra cost. Just peace of mind from day one. Learn more.

HVAC Drive H300 ratings guide

200/240 Vac ±10%

Drive	Normal Duty
Drive	Max continuous current (A)	Motor shaft power (kW)	Motor shaft power (hp)
H300-03200066A10	6.6	1.1	1.5
H300-03200080A10	8	1.5	2
H300-03200110A10	11	2.2	3
H300-03200127A10	12.7	3	3
H300-04200180A10	18	4	5
H300-04200250A10	25	5.5	7.5
H300-05200300A10	30	7.5	10
H300-06200500A10	50	11	15
H300-06200580A10	58	15	20
H300-07200750A10	75	18.5	25
H300-07200940A10	94	22	30
H300-07201170A10	117	30	40
H300-08201490A10	149	37	50
H300-08201800A10	180	45	60
H300-09202160A10	216	55	75
H300-09202660A10	266	75	100
H300-09202160E10	216	55	75
H300-09202660E10	266	75	100
H300-10203250E10	325	90	125
H300-10203600E10	360	110	150

380/480 Vac ±10%

Drive	Normal Duty
Drive	Max continuous current (A)	Motor shaft power (kW)	Motor shaft power (hp)
H300-03400034A10	3.4	1.1	1.5
H300-03400045A10	4.5	1.5	2
H300-03400062A10	6.2	2.2	3
H300-03400077A10	7.7	3	5
H300-03400104A10	10.4	4	5
H300-03400123A10	12.3	5.5	7.5
H300-04400185A10	18.5	7.5	10
H300-04400240A10	24	11	15
H300-05400300A10	30	15	20
H300-06400380A10	38	18.5	25
H300-06400480A10	48	22	30
H300-06400630A10	63	30	40
H300-07400790A10	79	37	50
H300-07400940A10	94	45	60
H300-07401120A10	112	55	75
H300-08401550A10	155	75	100
H300-08401840A10	184	90	125
H300-09402210A10	221	110	150
H300-09402660A10	266	132	200
H300-09402210E10	221	110	150
H300-09402660E10	266	132	200
H300-10403200E10	320	160	250
H300-10403610E10	361	200	300
H300-11404370E10	437	225	350
H300-11404870E10	487	250	400
H300-11405070E10	507	280	450
H300-12404800TU0	608	315	500
H300-12405660TU0	660	355	550
H300-12406600TU0	755	400	650
H300-12407200TU0	865¹	500	700

Note¹: 110 % Overload at 30˚C and below and No Overload above that.

500/575 Vac ±10%

Drive	Normal Duty
Drive	Max continuous current (A)	Motor shaft power (kW)	Motor shaft power (hp)
H300-05500039A10	3.9	2.2	3
H300-05500061A10	6.1	4	5
H300-05500100A10	10	5.5	7.5
H300-06500120A10	12	7.5	10
H300-06500170A10	17	11	15
H300-06500220A10	22	15	20
H300-06500270A10	27	18.5	25
H300-06500340A10	34	22	30
H300-06500430A10	43	30	40
H300-07500530A10	53	37	50
H300-07500730A10	73	45	60
H300-08500860A10	86	55	75
H300-08501080A10	108	75	100
H300-09501250A10	125	90	125
H300-09501550A10	155	110	150
H300-09501250E10	125	90	125
H300-09501500E10	150	110	150
H300-10502000E10	200	130	200
H300-11502480E10	248	175	250
H300-11502880E10	288	225	300
H300-11503150E10	315	250	350
H300-12503150	376	250	350
H300-12503600	428	300	400
H300-12504100	480	330	450
H300-12504600	532	370	500

500/690 Vac ±10%

Drive	Normal Duty
Drive	Max continuous current (A)	Motor shaft power (kW)	Motor shaft power (hp)
H300-07600230A10	23	18.5	25
H300-07600300A10	30	22	30
H300-07600360A10	36	30	40
H300-07600460A10	46	37	50
H300-07600520A10	52	45	60
H300-07600730A10	73	55	75
H300-08600860A10	86	75	100
H300-08601080A10	108	90	125
H300-09601250A10	125	110	150
H300-09601500A10	150	132	175
H300-09601250E10	125	110	150
H300-09601550E10	155	132	175
H300-10601720E10	172	160	200
H300-10601970E10	197	185	250
H300-11602250E10	225	200	250
H300-11602750E10	275	250	300
H300-11603050E10	305	280	400
H300-12603150	376	355	450
H300-12603600	428	400	500
H300-12604100	480	450	600
H300-12604600	532	500	650

Normal duty operation only

Suitable for HVAC applications, with a current overload requirement of 110% for 60 s*.

Conformance

IP20 / NEMA1 / UL TYPE 1 *UL open class as standard, additional kit needed to achieve Type 1
IP65 / NEMA4 / UL TYPE 12 rating is achieved on the rear of the drive when through panel mounted
*Frame size 9D, 9E, 10D and 10E achieve IP55 / NEMA 4 / UL Type 12
Ambient temperature -20 °C to 40 °C (-4 °F to 104 °F) as standard. Up to 55 °C (131 °F) with derating
Humidity 95 % maximum (non-condensing) at 40 °C (104 °F)
Altitude: 0 to 3000 m (9900 ft), derate 1 % per 100 m (330 ft) between 1000 m (3300 ft) and 3000 m (9900 ft)
Random Vibration Tested in accordance with IEC 60068-2-64
Bump Tested in accordance with IEC 60068-2-29
Sinusoidal Vibration Tested in accordance with IEC 60068-2-6
Mechanical Shock Tested in accordance with IEC 60068-2-29
Storage temperature -40 °C to 55 °C (-40 °F to 131 °F) or up to 70°C (158 °F) for short-term storage
Electromagnetic Immunity complies with EN 61800-3 and EN 61000-6-2
With onboard EMC filter, emissions comply with EN 61800-3 (category C3)
EN 61000-6-3 and EN 61000-6-4 with optional footprint EMC filter
IEC 60146-1-1 Supply conditions (category C1 or C2 depending on rating)
IEC 61800-5-1 (Electrical Safety)
IEC 61131-2 I/O
EN 61000-3-12 with optional line reactor
UL 508C (Electrical Safety)

Dimensions

Frame size	Dimensions		Weight
	mm (HxWxD)	in (HxWxD)	kg (lb)
3	382 x 83 x 200	15.0 x 3.3 x 7.9	4.5 (9.9)
4	391 x 124 x 200	15.4 x 4.9 x 7.9	6.5 (14.3)
5	391 x 143 x 200	15.4 x 5.6 x 7.6	7.4 (16.3)
6	391 x 210 x 227	15.4 x 8.3 x 8.9	14 (30.9)
7	557 x 270 x 280	21.9 x 10.6 x 11.0	28 (61.7)
8	803 x 310 x 290	31.6 x 12.2 x 11.4	50 (110.2)
9A	1108 x 310 x 290	43.6 x 12.2 x 11.4	66.5 (146.6)
9E/10E	1069 x 310 x 290	42.1 x 12.2 x 11.4	46 (101.4)
9D/10D	Rectifier 355 x 310 x 290 --------------------- Inverter 773 x 310 x 290	Rectifier 15.8 x 12.2 x 11.4 ----------------------- Inverter 30.4 x 12.2 x 11.4	12 (26.5) ----------------------- 34 (75)
11E	1242 x 310 x 312	48.9 x 12.2 x 12.3	63 (138.9)
12	1750 x 295 x 526	68.9 x 11.6 x 20.7	AC to AC ('T' type): 130 kg (287 lb) DC to AC ('D' type): 113 kg (249 lb)

*For more detailed information please see technical documents.

Keypads

	KI-Keypad Plus KI-Keypad Plus' large and clear colour display makes the drive status information and parameter descriptions easy to read and readily accessible. It enables easy access to key drive features for enhanced machine performance, with the helpful wizard quickly guiding the user through configuration. Bluetooth allows remote and flexible connectivity for PC tool commissioning and programming, without needing to open the cabinet, for smarter and safer working. 10 user selectable parameters can be shown on the status screen, with real-time information, plus all parameters can be scaled and their units customised.
	KI-HOA Keypad RTC The KI-HOA Keypad RTC provides Hand-Off-Auto control. The display presents up to four lines of real text with multilanguage translation, enhancing clarity and increasing ease of use. A battery operated real-time clock allows scheduling of run and off periods and adds accurate time stamping to diagnostics to aid rapid fault resolution.
	Remote HOA Keypad RTC Remote mountable keypad, allowing flexible mounting on the outside of a panel (meets IP54/NEMA 12). The keypad offers Hand-Off-Auto control and can present up to four lines of real text with multi language translation, enhancing clarity and increasing ease of use. Battery operated real-time clock allows scheduling of run and off periods and adds accurate time stamping to logged events, aiding diagnostics.
	KI-485 Adaptor This adaptor can be fit in place of the drive keypad and provides additional ports to communicate via RS485. The adaptor is commonly used for programming the drive.

System Integration Modules - Communications

	SI-BACnet IP The new SI-BACnet IP option module provides enhanced control and maximum efficiency in building automation systems, ensuring accurate and co-ordinated operation to boost occupant comfort.
	SI-POWERLINK Connects Unidrive, Commander, Digitax and the Pump Drive families to all POWERLINK networks. SI-POWERLINK serves applications ranging from simple open-loop systems through to those demanding precise motion control. The protocol is based upon standard Ethernet and provides a solution for real-time Industrial Ethernet to satisfy the requirements of industrial automation and process control.
	SI-Ethernet External Ethernet module that supports EtherNet/IP and Modbus TCP/IP and has an integrated web server that can generate emails. The module can be used to provide high speed drive access, global connectivity and integration with IT network technologies, such as wireless networking.
	SI-PROFINET SI-PROFINET allows H300 to communicate and interface with PROFINET PLCs and networks.
	SI-PROFIBUS PROFIBUS interface module PROFIBUS-DP (Decentralized Peripheral) interface module enables follower connectivity. It is possible to use more than one SI-PROFIBUS or a combination of SI-PROFIBUS and other option modules to add additional functionality such as extended I/O, gateway functionality, or additional PLC features.
	SI-DeviceNet DeviceNet networking system interface module enables follower connectivity. It is possible to use more than one SIDeviceNet or a combination of SI-DeviceNet and other option modules to provide additional functionality such as extended I/O, gateway functionality, or additional PLC features.
	SI-CANopen CANopen interface module supporting various profiles, including several drive profiles.
	MCi200 Second processor, providing advanced customisation using standard IEC61131-3 programming languages.
	MCi210 Adds to the MCi200 with a dual port Ethernet interface directly on the processor and additional I/O.

Additional I/O and NV media cards

	SI-I/O Extended I/O interface module to increase the number of I/O points on a drive. Provides additional: 4 x Digital I/O, 3 x Analog inputs (default)/Digital inputs, 1 x Analog output (default)/Digital input, 2 x Relays.
	Smartcard The optional Smartcard memory device can be used to back-up parameter sets, as well as copying them from one drive to another.
	SD Card Adaptor Conversion device that allows an SD card to be inserted into the Smartcard slot, for parameter cloning and application programs.