
Products
MINI SERIES
MINI SERIES

Fire Extinguisher for Confined Spaces Mini series
Early Fire Detection, Early Suppression
Mechanical fire extinguisher for confined spaces that automatically detects heat and flames for rapid suppression

Overview
Preventing electrical fires
in invisible spaces from
early fire suppression
As industries advance, fire hazards originate from small, invisible spaces. The Mini Series fire extinguisher for confined spaces was designed to suppress fires in distribution boards, ESS inverters, and data centers where human presence is limited or access is difficult. It automatically detects heat and flames during fire occurrence and immediately releases extinguishing agents, preventing escalation into major fires.
Increased fire frequency due to growing electrical demand from AI/data/ESS/ICT sectors
Solving initial fire suppression challenges in unmanned or low-access areas
Early suppression for electrical wire concentration areas: distribution boards, inverters, UPS, server racks
Compact and lightweight, optimized for confined space installation
Feature
Maximizing electrical fire
suppression with core technology

01
Fire source removal from early stages
Removing fire sources from initial stages in small spaces, minimizing spread
02
Enhanced instant suppression power
Low to high-pressure suppression system enhances instant power (time reduction)
03
Improved airtightness and detection
Sealed welding structure increases airtightness, expanded flame/thermal convection/radiant heat detection
04
Lightweight and slim design
Easy installation in confined spaces
Process
4-Step Automatic Detection & Suppression Process
01
Detection
Ambient temperature above 120℃ or glass bulb detection (nominal 68℃)
02
Activation
Breaking of glass bulb installed inside the head
03
Release
Discharge of pressurized halogenated compound extinguishing agent
04
Suppression
Oxygen supply cutoff (smothering suppression)
Models
3 Models for Various Space Scales

Mini 40
MAS
25843202
S2B
202407169107799
Design Volume
0.03 ㎥
Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
25.4x186mm
Operating Range
-20 ~ +50℃

Mini 120
MAS
25843201
S2B
202407169107889
Design Volume
0.08 ㎥
Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
40x214mm
Operating Range
-20 ~ +50℃

Mini 360
MAS
25843200
S2B
202407169107948
Design Volume
0.25 ㎥
Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
40x318mm
Operating Range
-20 ~ +50℃
Product Structure Details

Certifications
Type Certificates



Installation
Simple Installation Method
Step 01
Fix Bracket
Securely fix the bracket for attaching the product
to the upper interior with 2 screws.
Step 02
Insert Container
Push and seat the product container
into the fixed bracket.
Step 03
Set Direction
Install with the open part of the head sensor
facing downward.
Step 04
Complete
The product must be installed parallel to the top or
vertically on the side wall with the head upward.
Step 01
Fix Bracket
Securely fix the bracket for attaching the product
to the upper interior with 2 screws.
Step 02
Insert Container
Push and seat the product container
into the fixed bracket.
Step 03
Set Direction
Install with the open part of the head sensor
facing downward.
Step 04
Complete
The product must be installed parallel to the top or
vertically on the side wall with the head upward.
Notice
* Be careful of electrical wiring when fastening screws.
Example Image

Applications
Installation Photos




Gov. Procurement
Government Procurement Products
Public Procurement Service MAS
Available for purchase at the Public Procurement Service Mall
Mini 40B
Class No.
ID No.
Mini 120B
Class No.
ID No.
Mini 360B
Class No.
ID No.
Search on the Public Procurement Service Mall for
"ChangChangHan Co., Ltd." or "Small Space Fire Extinguisher"
Go to Public Procurement Service Mall
Edu. Procurement
School Marketplace Products
School Marketplace E-Procurement (S2B)
Available for purchase at the School Marketplace Mall
Mini 40
Class No.
Mini 120
Class No.
Mini 360
Class No.
Search on the School Marketplace Mall for
"ChangChangHan Co., Ltd." or "Product Classification Number"
Go to School Marketplace Mall
Specification
Detailed Technical Specifications
Mini 40
Fire Type
A, B, C
Protection Vol.
0.03 ㎥
Op. Temp
68℃
Product Size (mm)
25.4x186
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
0.4 x 0.4 x 0.2m
Mini 120
Fire Type
A, B, C
Protection Vol.
0.08 ㎥
Op. Temp
68℃
Product Size (mm)
40x214
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
0.5 x 0.5 x 0.3m
Mini 360
Fire Type
A, B, C
Protection Vol.
0.25 ㎥
Op. Temp
68℃
Product Size (mm)
40x318
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
0.7 x 0.7 x 0.5m
Model
Fire Type
Protection Vol.
Op. Temp
Product Size (mm)
Agent
Temp Range
Test Size
Mini 40
A, B, C
0.03 ㎥
68℃
25.4x186
HFC-125
-20 ~ +50℃
0.4 x 0.4 x 0.2m
Mini 120
A, B, C
0.08 ㎥
68℃
40x214
HFC-125
-20 ~ +50℃
0.5 x 0.5 x 0.3m
Mini 360
A, B, C
0.25 ㎥
68℃
40x318
HFC-125
-20 ~ +50℃
0.7 x 0.7 x 0.5m
MINI SERIES
MINI SERIES

Gas Automatic Fire Extinguisher Mini series
Medium & Large Space Electrical Fire, Early Suppression
Mechanical gas automatic fire extinguisher that automatically detects heat and flames in medium-sized spaces to block the spread of fire at an early stage

Overview
Scalable fire suppression
for medium to large spaces
Automatic gas fire suppression solution
From a small overheating to major damage happens faster than you think. Gas Automatic Fire Extinguisher Mini Series was created to quickly extinguish initial fires caused by sparks, overheating, and overloads in enclosed/semi-enclosed spaces such as switchboards/server rooms in data centers, multi-purpose buildings, factories, and telecommunication facilities. It detects heat and immediately disperses fire extinguishing agents to eliminate fire sources and prevent spread, minimizing casualties, property damage, and operational disruption risks.
Increasing fire frequency due to growing electricity demand from AI/data/ESS/IT growth
Solving fire response limitations in medium spaces with no or low human presence
Specialized for electrical equipment such as switchboards, transformers, MCCs, and server racks
Medium-sized and lightweight design to minimize installation space constraints
Feature
Maximizing early electrical fire
suppression performance with core technology

01
Instant suppression of medium space fires from the initial stage
Quickly blocks fires caused by sparks, overheating, and overloads, minimizing spread
02
Automatic heat and flame detection mechanical structure
Releases pressurized HFC-125 agent, cuts off oxygen supply to minimize electrical equipment damage
03
Enhanced pressurization and discharge structure for medium to large spaces
Applied high-capacity, high-reliability structure for uniform agent dispersion even in large volumes
04
Lineup for various space scales
Covering all space scales with 5 models from 360 to 10,000
Process
4-Step Automatic Detection and Suppression Process
01
Detection
Detects ambient temperature above 120℃ or glass bulb (nominal 68℃)
02
Activation
Glass bulb installed inside the head breaks
03
Discharge
Releases pressurized halogenated compound extinguishing agent
04
Suppression
Cuts off oxygen supply (suffocation suppression)
Models
5 models for various space scales

Mini 360
Type Approval Pending
Design Protected Volume
0.36㎥
Nominal Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
60x308
Operating Temp Range
-20 ~ +50℃

Mini 1200
MAS
26046354
S2B
202407239156795
Design Protected Volume
1.215㎥
Nominal Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
90x265
Operating Temp Range
-20 ~ +50℃

Mini 3000
MAS
26046355
S2B
202407239157281
Design Protected Volume
2.88㎥
Nominal Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
114x331
Operating Temp Range
-20 ~ +50℃

Mini 6000
MAS
26046356
S2B
202512055664043
Design Protected Volume
5.625㎥
Nominal Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
176x590
Operating Temp Range
-20 ~ +50℃

Mini 10000
MAS
26046357
S2B
202512055665478
Design Protected Volume
9.720㎥
Nominal Operating Temp
68℃
Extinguishing Agent
HFC-125
Product Size
204x595
Operating Temp Range
-20 ~ +50℃
Product Detailed Structure

Certifications
Type Approval Certificates




Installation
Simple Installation Method
Step 01
Secure Clearance
Install with reference to clearance distances
between high-voltage conductors and non-energized metal parts.
Step 02
Upper Attachment
Set the installation location inside the target object
and securely attach the bracket to the upper part.
Step 03
Band Fixing
Place the product container into the fixed bracket,
seat it, and then lock the band.
Step 04
Installation Complete
The product must be installed vertically on the side wall
with the head part facing upward.
Step 01
Secure Clearance
Install with reference to clearance distances
between high-voltage conductors and non-energized metal parts.
Step 02
Upper Attachment
Set the installation location inside the target object
and securely attach the bracket to the upper part.
Step 03
Band Fixing
Place the product container into the fixed bracket,
seat it, and then lock the band.
Step 04
Installation Complete
The product must be installed vertically on the side wall
with the head part facing upward.
Notice
* Please temporarily shut off the power to switchboards, etc. before installation. * Be careful of nearby electrical wiring when fastening screws.
Example Image

Applications
Installation Photos




Gov. Procurement
Government Procurement Products
Public Procurement Service MAS
Available for purchase at the Public Procurement Service Mall
Mini 1200
ID No.
Mini 3000
ID No.
Mini 6000
ID No.
Mini 10000
ID No.
Search for
"ChangChangHan Inc." or "Gas Automatic Fire Extinguisher"on the Public Procurement Service Mall
Go to Public Procurement Service Mall
Edu. Procurement
School Marketplace Products
School Marketplace E-Procurement (S2B)
Available for purchase at the School Marketplace Mall
Mini 1200
Class No.
Mini 3000
Class No.
Mini 6000
Class No.
Mini 10000
Class No.
Search for
"ChangChangHan Inc." or "Product Classification Number"on the School Marketplace Mall
Go to School Marketplace Mall
Specification
Detailed Technical Specifications
Mini 360
Fire Class
A, B, C
Protection Vol.
0.36 ㎥
Op. Temp
68℃
Product Size (mm)
60x308
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
0.6 × 0.6 × 1.0m
Mini 1200
Fire Class
A, B, C
Protection Vol.
1.21 ㎥
Op. Temp
68℃
Product Size (mm)
90x265
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
0.9 × 0.9 × 1.5m
Mini 3000
Fire Class
A, B, C
Protection Vol.
2.88 ㎥
Op. Temp
68℃
Product Size (mm)
114x331
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
1.2 × 1.2 × 2.0m
Mini 6000
Fire Class
A, B, C
Protection Vol.
5.62 ㎥
Op. Temp
68℃
Product Size (mm)
176x590
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
1.5 × 1.5 × 2.5m
Mini 10000
Fire Class
A, B, C
Protection Vol.
9.72 ㎥
Op. Temp
68℃
Product Size (mm)
204x595
Agent
HFC-125
Temp Range
-20 ~ +50℃
Test Size
1.8 × 1.8 × 3.0m
Model
Fire Class
Protection Vol.
Op. Temp
Product Size (mm)
Agent
Temp Range
Test Size
Mini 360
A, B, C
0.36 ㎥
68℃
60x308
HFC-125
-20 ~ +50℃
0.6 × 0.6 × 1.0m
Mini 1200
A, B, C
1.21 ㎥
68℃
90x265
HFC-125
-20 ~ +50℃
0.9 × 0.9 × 1.5m
Mini 3000
A, B, C
2.88 ㎥
68℃
114x331
HFC-125
-20 ~ +50℃
1.2 × 1.2 × 2.0m
Mini 6000
A, B, C
5.62 ㎥
68℃
176x590
HFC-125
-20 ~ +50℃
1.5 × 1.5 × 2.5m
Mini 10000
A, B, C
9.72 ㎥
68℃
204x595
HFC-125
-20 ~ +50℃
1.8 × 1.8 × 3.0m

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Seismic Bolt & Nut
Secure and Sturdy Attachment
Seismic bolts and nuts that stably withstand various loads such as tensile and shear forces during earthquakes

Overview
During Earthquakes
Withstanding Various Types of Loads
Concrete Fixing Solution
Seismic bolts and nuts are fixing systems designed to securely connect structural and non-structural elements to concrete, developed to withstand tensile and shear loads during earthquakes. They are applied to fixing various facilities that require seismic response, from anchor plates, metal structures, and pipe supports to distribution boards and ESS inverter boxes. Reliability is secured through ACI standard seismic tests and quality control, and confidence in field application is added through domestic accredited testing agency certification.
Highly reliable product that has undergone seismic tension and shear tests and quality control in accordance with ACI standards
The first seismic anchor bolt and nut in Korea to obtain certification from an accredited testing agency
Provides stability that saves construction time and considers seismic stress
Applied to structural fixing in cracked/non-cracked concrete environments
Feature
Core Structure for Seismic Loads
Maximize Fixing Performance

01
ACI Standard Compliance
Reliability through seismic tension and shear tests according to ACI standards and thorough quality control
02
Accredited Agency Certification
The first seismic anchor bolt and nut product in Korea certified by an accredited testing agency
03
Various Load Response
Transmits and withstands various types of loads such as tensile and shear forces that occur during earthquakes
04
Excellent Heat Resistance
Maintains functionality during fires with heat resistance performance of 950°C or higher
Applications
4 Application Areas
01
Structural & Steel Fixing
Anchor plates, metal structures, steel beams
02
Equipment & Device Fixing
Machinery, boilers, elevators, pumps, signaling equipment
03
Mechanical & Fire Safety Equipment
Fire/gas piping, pumps, supports, fire protection equipment
04
Electrical & Energy Systems
Bridges, tunnels, electrical trays, distribution boards, equipment
Models
3 Specialized Models for Optimal Seismic Construction Environments by Site

STA
Stud Seismic Anchor Bolt
Size
M8
M10
M12
M16
M20
Fixed seismic anchor bolt suitable for medium to heavy loads
Suitable for structures requiring long-term fixing
Easy installation without punch

SKA
Screw Seismic Anchor Bolt
Size
M8
M10
M12
Quick installation and minimal disassembly traces
Used in places with close structure installation
Suitable for impact driver installation

DIA
Drop-In Seismic Anchor Bolt
Size
M10(3/8")
M12(1/2")
Embedded female thread type drop-in seismic anchor bolt
Suitable for sites requiring bolt insertion/removal
Suitable for sites requiring clean finishing
Quick Comparison Table
Stud (STA)
Installation Method
Expansion sleeve fixed
Feature Summary
Medium/heavy load, permanent fixing
Specification
M8~M20
Recommended Use
Piping, equipment, structures
Screw (SKA)
Installation Method
Screw fastening
Feature Summary
Quick installation, easy disassembly
Specification
M8~M12
Recommended Use
Dense structures, temporary facilities
Drop-In (DIA)
Installation Method
Embedded fastening
Feature Summary
Female thread, bolt attachment/detachment
Specification
M10(3/8"), M12(1/2")
Recommended Use
Clean finishing, maintenance
Type
Installation Method
Feature Summary
Specification
Recommended Use
Stud (STA)
Expansion sleeve fixed
Medium/heavy load, permanent fixing
M8~M20
Piping, equipment, structures
Screw (SKA)
Screw fastening
Quick installation, easy disassembly
M8~M12
Dense structures, temporary facilities
Drop-In (DIA)
Embedded fastening
Female thread, bolt attachment/detachment
M10(3/8"), M12(1/2")
Clean finishing, maintenance
Product Detailed Structure

Installation
Simple Installation Method
Step 01
Drill
Use specified drill bit to drill concrete
to required depth.
Step 02
Clean
Use wire brush and air pump to
remove dust and debris from hole.
Step 03
Insert
Insert anchor with washer/nut into hole,
tap with hammer if needed.
Step 04
Tighten
Tighten with torque wrench to
recommended torque (Nm) value.
Step 01
Drill
Use specified drill bit to drill concrete
to required depth.
Step 02
Clean
Use wire brush and air pump to
remove dust and debris from hole.
Step 03
Insert
Insert anchor with washer/nut into hole,
tap with hammer if needed.
Step 04
Tighten
Tighten with torque wrench to
recommended torque (Nm) value.
Product-specific Example Images
STA

SKA

DIA

Detail
Stud Seismic Anchor Bolt
STA
Expansion sleeve type stud seismic anchor bolt anchored inside concrete drilling, easily installed using standard drill bits and general tools. Suitable for structures that require maximum heavy load transmission not only for vertical loads during earthquakes but also for installation loads caused by lateral forces. Resistant to temperature changes and guarantees long-term reliability and durability under constantly changing stress.

Features
1
Functions properly during earthquakes
2
Easy installation without punch
3
Minimal drilling required
4
Suitable for cracked/non-cracked concrete
5
Medium to heavy load capacity
6
Pre-installation or through fixture holes
7
Various lengths and diameters available
8
For static and quasi-static loads
9
Heat resistant (950°C+)
Key Performance Summary
Easy installation without punch
Heat resistant 950°C+
Various lengths/diameters
Detailed Specifications
d₀ (㎜)
L (㎜)
Lₛ (㎜)
T (Nm)
Sw (㎜)
dₙ (㎜)
h₁ (㎜)
hₙₒₘ (㎜)
tfix (㎜)
h (㎜)
Load Performance
Based on seismic test results in cracked concrete
Load Type
Content
M8
Tension
Shear
M10
Tension
Shear
M12
Tension
Shear
M16
Tension
Shear
M20
Tension
Shear
Ultimate Resistance
Actual pullout/shear load
10.5
15
10.7
13.8
15
23.9
25.4
42
50.2
57.1
Characteristic Resistance
5% fractile applied
10
14.3
10.2
13.1
14.3
22.7
24.1
40
47.7
54.2
Design Resistance
Safety factor applied
6.7
9.6
6.8
8.8
9.6
15.2
16.1
26.8
32
38.2
Recommended Resistance
Load safety factor applied
4.8
7.1
4.9
6.3
6.9
10.9
11.5
19.1
22.9
27.3
*Values may vary depending on site conditions and design standards.