Description
Fuzzy logic control, PID auto-tuning
– 3-zone PID/group PID (3 types)
– Ramp control function
– Heating/cooling control, HBA
– 3 setpoints selectable via contact input (DI)
– Communication functions (RS485/422)
- 1/F Block J, Shifeng Technology Park, Shenzhen ,China
model
KX2A
KX3A
KX4A
KX7A
KX9A
KX4P
weight
170 g
110 g
170 g
240 g
110 g
enter
Types of thermocouples K, J, E, T, R, B, S, L, N, U, W, PLIIReference contact pointCorrection degree ±1.5 ºC (within 0 ~ 50ºC)Types of resistance thermometers JPT100, PT100Allowable line resistance The impedance between the three wires should be within 10Ω (but the impedance values between the three wires must be the same).DC voltage 1 ~ 5 V, 0 ~ 10 VDisplay accuracy ±0.5% (See input table)Input disconnection detection Out of rangeSampling period 250 ms
Output
Relay output ▪ KX2A, KX3A, KX4A, KX7A, KX9ANO: 5 A 250 VAC, 5 A 30 VDC (resistive load)
NC: 2 A 250 VAC, 1 A 30 VDC (resistive load), Switch life: 1 million cycles (no load)▪ KX4P
3 A 240 VAC, 3 A 30 VDC (resistive load), switch life: 1 million cycles (no load).Voltage output Turn-on voltage: 12 VDC or higher; turn-off voltage: 0.1 VDC or lower; load resistance: 600Ω or higher.Current output 4~20 mA, accuracy: ±0.2% of full scale ±1 digit, load resistance: below 600Ω
control
type On/Off, PID ControlOutput Action Reverse movement, forward movementOver-integralProtective function Automatic (A=0), 0.1 ~ 100%
Options
alarmOutput
ALH
▪ KX2A, KX3A, KX9ANO: 5 A 250 VAC, 5 A 30 VDC (resistive load)
NV: 2 A 250 VAC, 1 A 30 VDC (resistive load), Switching life: 1 million cycles (no load)▪ KX4A, KX7A, KX4P
3 A 240 VAC, 3 A 30 VDC (resistive load), switch life: 1 million cycles (no load).
ALL
3 A 240 VAC, 3 A 30 VDC (resistive load), switch life: 1 million cycles (no load).LBA
▪ KX2A, KX3A, KX7A, KX9A3 A 240 VAC, 3 A 30 VDC (resistive load), switch life: 1 million cycles (no load).Transmission output 4~20 mA, accuracy: ±0.2% of full scale ±1 digit, load resistance: below 600Ω
power supply
power supply voltage 100 – 240 VAC (±10 %), 50 – 60 Hz, 24 VDC (±10 %)AC power typePower consumption Below 8.5 VA Below 7 VA Below 8.5 VA Below 9.0 VA Below 7 VADC power supply type
Power consumption Below 3.5 W Below 3.2 W Below 3.5 W Below 3.0 WInsulation resistance 20 MΩ and above (primary terminal – secondary terminal)Withstand voltage 3,000 VAC, 1 minute (1st terminal – 2nd terminal)
Installation Environment
Temperature and humidity 0 ~ 50 ºC, 35 ~ 85 % RH (but must not condense)environment Please refer to the safety precautions.Certification
weight
170 g
110 g
170 g
240 g
110 gEngineering Excellence
Professional engineering support with 17 years of experience in automation and electrical components.
Precision Manufacturing
Stable and reliable production of PLCs, I/O modules, relays, terminals, and switches.
Quality Assurance
Quality-first processes ensuring consistent performance and customer trust.
R&D Innovation
Continuous improvement to support automation, new energy, and electrical industries.
Our Certificates
Shenzhen Yulian Technology Co., Ltd. operates with a strong commitment to quality, safety, and environmental responsibility. Supported by modern production facilities and a professional engineering team, we follow standardized management systems to ensure product consistency, reliability, and customer satisfaction.
From manufacturing to final inspection, every process is carefully controlled to meet international standards and long-term performance requirements for automation and electrical components.
Need Reliable Automation & Electrical Component Solutions?
From standard automation products to customized electrical components – we deliver stable performance, consistent quality, and global-grade reliability for industrial and new energy applications.
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