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LSZH Control Cable is a control cable designed with low-smoke, zero-halogen material characteristics, as defined by the applicable material specifications and test requirements. LSZH stands for Low Smoke Zero Halogen. LSZH cable materials are intended to limit smoke generation and halogen acid gas emissions under specified test conditions. These characteristics can be important in buildings, public facilities, industrial environments, and other installations where smoke and corrosive gas considerations influence cable selection. Control cables are used to transmit control signals and, where permitted by their design and ratings, other electrical signals between control equipment, electrical panels, machinery, and related devices. The appropriate LSZH control cable depends on the intended application, operating voltage, conductor size, number of cores, installation environment, shielding requirements, and applicable standards.
What LSZH Means - Three Independent Properties
"LSZH" is a single label that combines three testable properties. A cable is only truly LSZH if it passes all three.
Zero Halogen
IEC 60754 - halogen acid gas
The compound contains no chlorine, fluorine or bromine. In a fire it emits no hydrochloric acid (HCl) or other corrosive halogen gas - protecting lungs, escape routes and sensitive electronics. Measured by halogen acid gas emission (HCl < 5 mg/g).
Low Smoke
IEC 61034 - smoke density
When burning, the cable produces a low optical density of smoke so that escape routes stay visible. Measured in a 3 m cube test chamber; a pass means smoke density remains within the limit under controlled fire conditions.
Flame Retardant
IEC 60332 - flame spread
The cable resists ignition and is self-extinguishing: once the external flame is removed, the cable stops burning and does not propagate the fire along its length. The single-wire test is IEC 60332-1-2; the bunched test is IEC 60332-3.
LSZH Control Cable Technical Specifications
Manufactured at our Haiyan, Zhejiang factory complying with ISO 9001:2015 standards. This flame retardant alarm cable supports custom jacket materials, colors and construction to meet different fire safety project specifications.
| Product Name | LSZH Control Cable |
|
Insulation Material |
PE |
| Conductor Material | BC |
| Contruction Specification | 1*2*0.8mm / 2*2*0.8mm / 1*4*0.8mm |
| Jacket Material | LSZH |
| Insulation Color | Red Black White Yellow |
| Drain Wire | 7*0.16 Tinned copper wire |
| Jacket Color | Green |
| Foil Shielding Coverage | 115% Polyester Foil |
| Overall Diameter | 5.8mm |
| Tensile performance | more than 25N |
| Bend Radius | 8*D |
LSZH Control Cable Construction
|
Conductor: |
1P |
2P |
4C |
|
Size: |
1*2*0.8±0.003mm |
2*2*0.8±0.003mm |
1*4*0.8±0.003mm |
|
Dielectric: |
|||
|
Material: |
PE |
||
|
Dia.over Dielectric: |
1.4±0.05mm |
||
|
Color Code: |
Red/Black |
Red/Black, White/Yellow |
Red/Black/White/Yellow |
|
Screen: |
PET tape |
||
|
Shield: |
AL-Foil |
||
|
Drain Wire: |
7/0.16±0.003 TC |
||
|
Jacket: |
|||
|
Material: |
LSZH(Green) |
||
|
Dia.over Jacket: |
4.9±0.3mm |
6.8±0.3mm |
5.6±0.3mm |
LSZH Control Cable vs. PVC Control Cable
The two are functionally similar for carrying control signals, but their behaviour in a fire is completely different. The choice is driven by where the cable runs.
Low smoke, zero halogen
- No halogen - no corrosive acid gas
- Low smoke - clear escape routes
- Self-extinguishing flame retardant
- Slightly less flexible, higher cost
- Required in occupied and enclosed spaces
Use where people or sensitive equipment are present.
General purpose
- Flexible, lower cost
- Good mechanical protection
- Flame retardant (FR-PVC available)
- Emits dense smoke and HCI gas in fire
- Common in open industrial areas
Use where fire smoke and gas are not a life-safety risk.
Applications of LSZH Control Cable
LSZH control cables may be used in electrical and industrial systems where their electrical ratings, construction, and low-smoke, halogen-free characteristics meet the installation requirements. Typical application areas include:
Industrial Automation: Control wiring for compatible industrial equipment, control panels, and automation systems.
Machinery and Equipment Manufacturing: Cable supply for machinery and electrical equipment manufacturers requiring specified control cable configurations.
Commercial Buildings: Control and electrical service installations where project specifications call for LSZH cable materials.
Public Facilities: Electrical control applications in facilities where low-smoke and halogen-related material requirements are part of the project specification.
Transportation and Infrastructure: Selected equipment and control applications where the cable's technical characteristics meet the relevant industry and project requirements.
Data and Technical Facilities: Compatible equipment control and auxiliary wiring applications where LSZH cable is specified.
The final selection should always consider installation conditions, operating voltage, temperature, mechanical requirements, applicable regulations, and the system manufacturer's recommendations.
LSZH Control Cable OEM and Custom Manufacturing
Different markets and equipment manufacturers may require different cable constructions. We welcome inquiries from customers who need specific product configurations or private-label arrangements.
Customization requests may include:
• Number of cores and conductor cross-sectional area.
• Conductor material and construction.
• Insulation and LSZH sheath specifications.
• Shielding type and configuration.
• Overall cable dimensions.
• Cable printing and identification.
• Sheath color, where available.
• Packaging and reel or coil requirements.
• Applicable standards and supporting documentation.
All customization options are subject to technical feasibility, the actual manufacturing range, order quantity, and material availability.
For OEM buyers, providing an existing cable datasheet, technical drawing, bill of materials, or sample specification can help reduce uncertainty during product evaluation.
Before production, the cable construction, required performance, inspection criteria, packaging, and documentation should be agreed upon by both parties.
Q: What does LSZH stand for in control cable?
A:LSZH stands for Low Smoke Zero Halogen. An LSZH control cable uses an insulation and jacket compound that contains no halogen (no chlorine, fluorine or bromine) and produces very little smoke and no corrosive acid gas in a fire. This protects people in escape routes and sensitive equipment in data centres and tunnels, where smoke density and corrosive gas from PVC cables would be a life-safety and equipment hazard.
Q: What is the difference between LSZH and PVC control cable?
A:PVC control cable is cheaper and more flexible, but in a fire it releases dense black smoke and corrosive hydrochloric acid gas. LSZH control cable uses a halogen-free compound that produces very little smoke and no acid gas, so it is safer in enclosed or occupied spaces. LSZH also has lower flame spread (CPR class Eca to B2ca). The trade-off is that LSZH is less flexible and slightly more expensive than PVC, so it is chosen where life-safety and equipment protection matter - public buildings, tunnels, rail, marine, data centres - not for general industrial wiring.
Q: Is LSZH control cable flame retardant?
A: Yes, but with additional properties. Flame retardant means the cable resists ignition and is self-extinguishing. LSZH adds two requirements: low smoke (measured by IEC 61034) and zero halogen (measured by IEC 60754, halogen acid gas emission). So an LSZH control cable is always flame retardant, but a flame retardant PVC cable is not LSZH because it still contains halogen and emits smoke. Choose LSZH where smoke and corrosive gas are life-safety concerns.
Q:Where is LSZH control cable required by code?
A:LSZH control cable is mandated or strongly specified in enclosed or occupied spaces where smoke and corrosive gas would endanger people or equipment: public buildings (hospitals, schools, theatres, airports), tunnels and underground rail, marine and offshore vessels (IMO/MED), rolling stock (rail standards EN 50264, EN 50306), data centres, and power generation stations. In Europe the CPR EN 50575 Euroclass and the IEC 60332 / IEC 61034 / IEC 60754 test set define the requirements. In marine applications MED and SOLAS require LSZH in accommodation and machinery spaces.
Q: What conductor sizes and core counts are available?
A:We manufacture LSZH control cable from 2 to 48 cores and 0.20 to 6.0 mm². The most common configurations for control applications are 0.5 to 1.5 mm² in 4 to 24 cores. For signal and instrumentation we offer 0.20 to 0.5 mm² in twisted pairs or triples. All sizes are available unscreened, foil-screened, braid-screened or foil-plus-braid, with a black or grey LSZH jacket.
Q: What is the MOQ and lead time for LSZH control cable?
A:MOQ is 10000 m for standard LSZH control cable , Lead time is 20–25 working days for bulk OEM orders, with samples available in 5–7 working days. We support custom printing, private-label reel marking and CPR Declaration of Performance on request.
We welcome inquiries from international distributors, importers, fire alarm system integrators, electrical contractors, and OEM customers.
Share your required conductor size, core count, shielding construction, insulation material, applicable standards, estimated order quantity, and destination market.
Our team can review your requirements and discuss suitable cable configurations, technical documentation, customization options, and supply arrangements.
Contact us today for control cable specifications, bulk pricing, OEM cooperation, and product documentation.
Our address
No.2288 Junyuan Road, Haiyan City, Zhejiang Province, China
Phone Number
0086 13758360692
Rita@doublewincables.com
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