NVENT HOFFMAN A1001YZUMC1 Small-volume system, class 1
nVent HOFFMAN A1001YZUMC1 small-volume Type Y and Type Z purging and pressurisation system designed for Class I hazardous location enclosure applications.
SKU:A1001YZUMC1MPN:A1001YZUMC1
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Why Choose the nVent HOFFMAN A1001YZUMC1 Small-Volume System, Class 1?
The nVent HOFFMAN A1001YZUMC1 Small-Volume System, Class 1 is a Type Y and Type Z purging and pressurisation system designed to enable the use of general-purpose enclosures in certain hazardous location applications. This compact system regulates and monitors enclosure pressure using compressed instrument air or inert gas to help prevent flammable gas, vapour or combustible dust accumulation.
Designed for hazardous area protection applications, the A1001YZUMC1 provides an alternative solution to NEMA Type 7 or Type 9 explosion-proof enclosures. The system is suitable for protected enclosures with a maximum volume of up to 2 ft³ (0.06 m³) and supports Class I hazardous location requirements.
Featuring a universal mounting design, a Type 316L stainless steel mounting plate and an integrated tamper-proof regulator with gauge, the nVent HOFFMAN A1001YZUMC1 provides reliable enclosure pressurisation control for industrial environments where hazardous location compliance is required.
Key Advantages
Compact Type Y and Type Z purging/pressurisation system for hazardous locations.
Allows suitable general-purpose enclosures to be used in certain Class I hazardous areas.
Suitable for enclosures up to 2 ft³ (0.06 m³).
Universal mounting design for flexible installation.
Includes tamper-proof regulator with pressure gauge.
Helps prevent flammable gas, vapour and combustible dust accumulation.
Key Features
nVent HOFFMAN A1001YZUMC1 small-volume system.
Product type: Type Y/Z purging and pressurisation system.
Model: 1001, Class 1.
Maximum enclosure volume: 2 ft³ (0.06 m³).
Mounting plate material: Type 316L stainless steel.
Regulator body: Zinc with enamel finish.
Pressure gauge: Aluminium with enamel finish.
Regulator handle: Polycarbonate.
Includes TR-10G tamper-proof regulator with gauge.
Universal mount design for enclosure installation.
Reliable Hazardous Location Enclosure Protection
Purging and pressurisation systems maintain a controlled positive pressure inside protected enclosures by supplying clean instrument air or inert gas. This helps prevent hazardous substances from entering the enclosure and supports safe operation of electrical equipment in classified areas.
The nVent HOFFMAN A1001YZUMC1 is engineered for industrial applications requiring dependable enclosure protection without the need for traditional explosion-proof enclosure designs. Its compact construction and integrated pressure monitoring make it suitable for a wide range of hazardous location installations.
Typical Applications
Hazardous area electrical enclosures.
Industrial automation control systems.
Process control equipment.
Instrumentation and monitoring systems.
Oil and gas industry applications.
Chemical and industrial processing environments.
Technical Specifications
Country of Manufacture
United States
Manufacturer
nVent HOFFMAN
Series
HL Series
Model
A1001YZUMC1
Product type
Small-volume purging/pressurisation system
Hazardous location classification
Class I
System type
Type Y / Type Z
Maximum enclosure volume
2 ft³ / 0.06 m³
Material
Stainless Steel 316L
Finish
Brushed
Height
229 mm
Width
229 mm
Depth
127 mm
Thickness
1.98 mm
Weight
3.74 kg
Mounting type
Universal mount
Frequently Asked Questions
What is the nVent HOFFMAN A1001YZUMC1 used for?
The A1001YZUMC1 is a Type Y and Type Z purging/pressurisation system used to protect suitable electrical enclosures in certain hazardous locations.
What enclosure volume does the A1001YZUMC1 support?
The system is designed for protected enclosures with a maximum volume of 2 ft³ (0.06 m³).
What hazardous area classifications does this system support?
The A1001YZUMC1 supports NEC Type Y Class I, Division 1, Groups A, B, C and D to Division 2, and Type Z Class I, Division 2, Groups A, B, C and D to unclassified areas.
What material is the mounting plate made from?
The mounting plate is manufactured from Type 316L stainless steel with a brushed finish.
How is the enclosure pressure controlled?
The system uses a tamper-proof TR-10G regulator with gauge to monitor and regulate enclosure pressure.
Trusted by Industrial Protection Professionals
nVent HOFFMAN hazardous location protection systems are trusted by engineers worldwide to provide reliable enclosure safety, pressure control and compliance in demanding industrial environments.
Country of Manufacture
United States
Manufacturer
nVent HOFFMAN
Series
HL Series
Model
A1001YZUMC1
Product type
Small-volume purging/pressurisation system
Hazardous location classification
Class I
System type
Type Y / Type Z
Maximum enclosure volume
2 ft³ / 0.06 m³
Material
Stainless Steel 316L
Finish
Brushed
Height
229 mm
Width
229 mm
Depth
127 mm
Thickness
1.98 mm
Weight
3.74 kg
Mounting type
Universal mount
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...