Identification
7100A User Manual
1-10
1.2.9. Protection
Electrical protection
IP20 without adding additional protection.
Coordination Type for short-circuits
Type 1 (High speed fuses)
Thyristors
Varistor and RC snubber
High speed fuse:
(excepted for Short-Wave Infrared heaters)
• rating
≤
100 A: external
• rating
≥
125 A: internal
With the MSFU code (see code)
• External fuses: the contact-reverser of fusion must be
directly wiried on the fuse
• Internal fuses: the contact (open after the fusion of the
fuse) is accessible on the MSF block.
Fuses of replacement: see chapter 4.
No fuse for Short wave infrared elements
in Burst mode and Single-cycle firing, or
Phase angle without Current limit.
1.2.10. Mounting
Mounting type
Attachment plate fixed to unit:
• on symmetrical EN50022 DIN rail or
• bulkhead mounting
(for ratings
≥
125 A: bulkhead mounting only)
1.2.11. Environment
Use
0 to 45 °C at nominal current, max altitude 2000 m
Storage
-10°C to 70°C.
Pollution
Degree 2 acceptable (defined by IEC 60664).
Humidity
RH 5% to 95%, non-condensing, non-streaming.
Over-voltage
Over-voltage category II (as defined by IEC 60664) U
imp
= 4kV
Isolation voltage
Assigned voltage of isolation U
i
= 500 Veff
