The CATU MV-137 Class 2 Insulating Boots provide reliable electrical protection for applications up to 17 kV, tested at 20 kV. These boots resist over 35 kV at the sole for 3 minutes and 20 kV over the entire boot for up to 8 hours. Designed for safe operation on live circuits, they also protect against step voltage while offering comfort and ergonomic use.
Key Features and Benefits
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Electrical insulation class 2, rated for 17,000 V AC, tested at 20 kV.
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Arc flash protection ATPV 40 cal/cm² per ASTM F2621:2019.
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Protects against step voltage and electric shocks.
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High visibility yellow for safety in work environments.
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Comfort features: release tab for hands-free removal, adjustable upper height, and washable non-absorbent polyester lining.
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Non-slip vulcanized rubber sole (SRC) compliant with SATRA TM144 and EN 13287.
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Anti-slip and heat-resistant sole (300°C for 60 seconds).
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Oil and petrol resistant sole.
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Reinforced steel and epoxy coated toe protects up to 200 J.
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Energy absorbing heel compliant with EN 345 SBE and EN ISO 20345 SBE.
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100% waterproof with removable and washable insole.
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Leakage current: <5 mA at 5 kV, <18 mA at 20 kV.
Recommended For
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Electrical work up to 17 kV and tested for 20 kV environments.
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Live line maintenance and high-voltage installations.
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Arc flash risk-controlled areas requiring ATPV 40 cal/cm² protection.
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Industrial, utility, and power generation applications.
Industries
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Electrical utilities
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Power generation
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Industrial maintenance
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Manufacturing facilities
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Construction and energy sectors
Specifications
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Model reference: MV-137
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Electrical class: Class 2
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Rated voltage: 17,000 V AC (tested 20 kV)
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Arc flash protection: ATPV 40 cal/cm²
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Colour: High visibility yellow
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Sole: Non-slip, heat-resistant, oil and petrol resistant vulcanized rubber
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Toe: Reinforced steel, epoxy coated (200 J)
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Heel: Energy absorbing
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Insole: Removable and washable
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Waterproof: 100%
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Standards: EN 50321-1:2018, ASTM 1117, ASTM 2413, ASTM F26121:2019, EN 13287, EN ISO 20345
Approvals
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EN 50321-1:2018 Class 2
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ASTM 1117, ASTM 2413, ASTM F26121:2019
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EN 13287, EN ISO 20345
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Arc flash ATPV 40 cal/cm²
CATU MV-137 Class 2 Insulating Boots Selection Notes
The CATU MV-137 Class 2 Insulating Boots is part of Safetyware’s electrical protection range for electricians, utilities, industrial maintenance teams, substations and facilities that need controlled protection against shock, arc flash, short-circuit or emergency rescue hazards. Review it against the actual task, voltage exposure, isolation status and site procedure before issue.
Where It Fits
| Selection area | Practical guidance |
|---|---|
| Product family | Arc flash PPE |
| Typical application | Electrical maintenance, switching, testing, isolation, substation work, panel service or emergency readiness. |
| Procurement note | Match arc rating, coverage, visor or hood, gloves and site arc-flash assessment. |
Standards and Safe Work Notes
Electrical protection should support a planned safe-work sequence: isolate where practical, lock out and tag out, verify absence of voltage, control stored energy, then use rated PPE and tools for the remaining risk. Local buyers should confirm datasheets, applicable EN/IEC/ASTM markings and DOSH/SIRIM KPD documentation where required.
Common Questions
Can this be used for live electrical work?
Only if the product rating, condition, procedure and user competency match the task. Electrical work should be de-energised and isolated whenever practical.
Can I request datasheets or matching accessories?
Yes. Contact Safetyware to compare ratings, sizes, compatible accessories or documentation for your site.
Browse related Electrical Body Protection products if you are building a complete electrical safety set.

