4.4.1 Overloads
Limit measuring time above 1000 A.
Intensity
Operation
With a frequency F < 1 kHz except C173
1)
C173 with frequency ≤ ≤ ≤ ≤ ≤ 500 Hz :
- Permanent up to 800 A
- Permanent up to 1000 A if temperature ≤ 40°C
- 15 min. on, followed by 30 min. off for 1000 A < I < 1200 A
4.4.2 Frequency
C100 / C102 / C103 / C106 / C107 / C112 / C113 / C116 / C117 / C122 :
- Use : 30 Hz to 5 kHz
- Current limitation beyond 1 kHz as per following formula :
C148 :
- Use : 48 Hz to 1 kHz
C160 :
- Use : 10 Hz to 100 kHz (-3 dB from 50 kHz to 100 kHz)
- Current limitation beyond 1 kHz as per following formula :
C173 :
- Use : 10 Hz to 1 kHz for 1000 A calibre
10 Hz to 3 kHz for other calibres
- Current limitation beyond 500 Hz as per following formula :
4.4.3 Environmental conditions
Indoor use
Altitude
: < 2000 m
Climatic conditions : -10 to +55° C and RH < 85%
Avoid splashing with water
4.5
Dimensions and weight
Overall dimensions
Weight
Jaw opening
Open jaw height
Max. clamping capacity : Ø 52 mm cable or 1 5x5 mm bar or 4 30x5 mm bars
4.6
Compliance with international norms
4.6.1 Electrical safety (as per EN 61010-1 and EN 61010-2-032)
Dual insulation
Pollution level 2
600 V Category III
I < 1000 A~
Permanent
(1)
I permanent =
I permanent =
I permanent =
2 x f (in kHz)
: 216 x 111 x 45 mm
: approx. 550 g
: 53 mm
: 139 mm
14
1000 A~ < I < 1200 A~
15 minutes on, followed by 30 minutes off.
1000 A
f (in kHz)
1000 A
f (in kHz)
1000 A