Certification and Standard Compliance
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8.3 UL or cUL Certification
Figure 8‑2 UL/cUL mark
● The UL/cUL mark commonly applies to products sold in the United States and
Canada. Products with UL/cUL mark have been inspected and assessed by the UL
organization. To pass UL/cUL certification, main built‑in components of electrical
products must also be UL certified.
● The drive has been tested in accordance with UL 61800‑5‑1 and CSA C22.2 No. 274‑
17 standards and has complied with UL/cUL standards. Observe the following
requirements to enable machines and devices integrated with this drive to comply
with UL/cUL standards.
Mounting location
Install the drive in a place with overvoltage category III and pollution degree 1 or 2 as
specified by UL61800–5–1.
Ambient temperature
According to the protection level, the ambient temperature must be maintained
within the following range:
● T1 to T9 models (Type 1, enclosed type): –10℃ to +50℃
● T1 to T12 models (open type): –10℃ to +50℃
Installation requirements
● T1 to T9 models are enclosed‑type, which must be installed according to the
following requirements:
■ The enclosure protection must meet requirements of UL Type 1.
■ Drill the holes according to the mounting dimensions. For details of mounting
dimensions, see the section of mounting dimensions in
MD520 Series General‑
Purpose AC Drive Installation Guide
.
● T1 to T12 models are open‑type, which must be installed in a cabinet according to
the following requirements:
The drive must be installed in a fireproof cabinet with the housing that provides
effective electrical and mechanical protection. The installation must conform to
local and regional laws and regulations and relevant NEC standards.
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