KST explosion-proof electric actuators are suitable for hazardous environments where flammable gases may be present.
They comply with multiple international standards including GB3836.1-2010, GB3836.2-2010, EN/IEC60079-0, EN/IEC60079-1, EN/IEC60079-31, EN ISO/IEC80079-36, and EN ISO/IEC80079-37.
Flameproof enclosures are designed to contain internal explosions without allowing the flame to escape and ignite the surrounding explosive atmosphere.
The flameproof enclosure uses a robust flame path design that ensures a long contact surface area between joint faces, preventing ignition through the housing gaps.
This allows equipment to operate safely and reliably in explosive environments.
KST explosion-proof actuators meet the following structural and explosion-proof requirements:
Electric motor
Electrical components
Terminal block
Exd II CT5 Gb
Explanation of Marking:
d: Flameproof type
II: Non-mining electrical equipment
C: Suitable for gas environments in explosive area classification IIC (highest gas group)
T6: Max surface temperature does not exceed 135°C
Gb: Equipment protection level (high level of protection for gas environments)
Technical Parameters
| Parameter | Specification |
| Output Torque | 50–1000 N·m |
| Output Angle | 90° ±1° (optional 270°) |
| Applicable Voltage | Single phase: 110–120V / 220–240V ACThree-phase: 380VAC/DC 24V |
| Applicable Frequency | 50/60 Hz |
| Environmental Temperature | -25°C to +60°C |
| Working Hours | Switch type: S2-15 minAdjustment type: S4-50% |
| Relative Humidity | <95% RH |
| Working Environment | No strong corrosive, flammable, or explosive media |
| Control Signal | Switch type: On/Off controlAdjustment type: 4–20 mA (optional 0–10V / 2–10V with optical isolation) |
| Feedback Signal | Switch type: SPDT (5A @250VAC, active/passive)Adjustment type: 4–20 mA (optional 0–10V / 2–10V with optoelectronic isolation) |
| Protection Level | IP67 (default), optional IP68 |
| Electric Insulation Level | F-grade (optional H-grade) |
| Service Life | >20,000 cycles (based on JB/T 8862-2014) |
KST explosion-proof electric actuators are suitable for hazardous environments where flammable gases may be present.
They comply with multiple international standards including GB3836.1-2010, GB3836.2-2010, EN/IEC60079-0, EN/IEC60079-1, EN/IEC60079-31, EN ISO/IEC80079-36, and EN ISO/IEC80079-37.
Flameproof enclosures are designed to contain internal explosions without allowing the flame to escape and ignite the surrounding explosive atmosphere.
The flameproof enclosure uses a robust flame path design that ensures a long contact surface area between joint faces, preventing ignition through the housing gaps.
This allows equipment to operate safely and reliably in explosive environments.
KST explosion-proof actuators meet the following structural and explosion-proof requirements:
Electric motor
Electrical components
Terminal block
Exd II CT5 Gb
Explanation of Marking:
d: Flameproof type
II: Non-mining electrical equipment
C: Suitable for gas environments in explosive area classification IIC (highest gas group)
T6: Max surface temperature does not exceed 135°C
Gb: Equipment protection level (high level of protection for gas environments)
Technical Parameters
| Parameter | Specification |
| Output Torque | 50–1000 N·m |
| Output Angle | 90° ±1° (optional 270°) |
| Applicable Voltage | Single phase: 110–120V / 220–240V ACThree-phase: 380VAC/DC 24V |
| Applicable Frequency | 50/60 Hz |
| Environmental Temperature | -25°C to +60°C |
| Working Hours | Switch type: S2-15 minAdjustment type: S4-50% |
| Relative Humidity | <95% RH |
| Working Environment | No strong corrosive, flammable, or explosive media |
| Control Signal | Switch type: On/Off controlAdjustment type: 4–20 mA (optional 0–10V / 2–10V with optical isolation) |
| Feedback Signal | Switch type: SPDT (5A @250VAC, active/passive)Adjustment type: 4–20 mA (optional 0–10V / 2–10V with optoelectronic isolation) |
| Protection Level | IP67 (default), optional IP68 |
| Electric Insulation Level | F-grade (optional H-grade) |
| Service Life | >20,000 cycles (based on JB/T 8862-2014) |
