Grundfos SE1 50 Notice D'installation Et De Fonctionnement page 9

2.5 Approvals
SE1 and SEV pump motors have been approved by FM Approvals. The explosion-proof pump motors
have FM23US0056 and FM23CA0041X certificates.
The letter X in the certificate number indicates that the equipment is subject to specific
conditions for safe use. The conditions are described in the certificate and the installation and
Note
operating instructions.
2.5.1 Approval standards
These pumps have been approved by FM Approvals according to ANSI/UL 60079-0, ANSI/UL 60079-1,
ANSI/IEC 60529, CSA C22.2 No. 60079-0, CSA C22.2 No. 60079-1, C22.2 No. 60529.
2.5.2 Explanation to FM approval
The SE1 and SEV pumps have the following explosion-protection classifications:
US: Class I, Zone 1, AEx db IIB T4/T3
Canada: Ex db IIB T4/T3
Standards
ANSI/UL 60079-0
ANSI/UL 60079-1
ANSI/IEC 60529
Standards
CSA C22.2 No. 60079-0
CSA C22.2 No. 60079-1
C22.2 No. 60529
Related information
4.1 Potentially explosive environments
4) Motor T-code is T3 when used with a frequency converter.
4)
Gb
4)
Gb.
Code
Class I
Zone 1
AEx
db
IIB
4)
T4/T3
Gb
Code
Ex
db
IIB
4)
T4/T3
Gb
Description
Flammable vapors and gases
may be present
Flammable material present
intermittently or continuously
Marking of explosion protection
Flameproof enclosure
Classification of gasses, gas
group B includes gas group A
Maximum surface temperature is
275 °F (135 °C) and 392 °F (200
°C)
Suitable for use in explosive gas
atmospheres in Zone 1 and Zone
2
Description
Marking of explosion protection
Flameproof enclosure
Classification of gasses, gas
group B includes gas group A
Maximum surface temperature is
275 °F (135 °C) and 392 °F (200
°C)
Suitable for use in explosive gas
atmospheres in Zone 1 and Zone
2
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