Technical Features - COMEM BR Manuel D'instruction

Technical features

Buchholz Relay
Material
Housing and upper part inclusive
terminal box
Characteristics Data
Installation
Ambient temperature
Oil temperature
Degree of protection
Rated insulation voltage
Nominal tube diameter
Flap triggering pressure
Protected Reed Switch
Number and types
Nominal Voltage
Max nominal current
Min switching current
Max breaking capacity DC
Max breaking capacity AC
Rated insulation voltage
Insulation resistance
Connection
Connection terminals
Cable Gland
Mechanical test
Sinusoidal (EN 60721-3-4)
Shock
Seismic
Table 2
Technical data
Aluminum casting, RAL 7032, powder coated;
Off shore model on request
Indoors and outdoors, tropical proof
-40°C to 80°C / -40°F to 176°F
-40°C to 115 °C / -40°F to 239°F (artic version on demand)
IP65 in accordance with EN60529 (on demand IP 66)
2.5 kV AC 1 min between contact and earth
DN25, DN50, DN80 and DN100 or G1 ½" threaded connection; ANSI 1",2",3"
0.65 m/s to 3.0 m/s (each ±15%)
Normally closed (NC), normally open (NO) and/or change over contacts (CO) on customer requests,
potential free, 2 pieces per function; max 4 pieces
24 – 230 VAC/DC
2A
10 mA/24 VDC (for lower current are available the golden contact)
250W (L/R<40 ms)
400 VA (cosφ>0.5)
2.5 kV AC 1 min between contacts and earth, 1.0 kV AC 1 min between open contacts
1000 MΩ/500 VDC
Min 0.25 mm / max. 4 mm
2 2
N°2 x M25 x 1.5 (standard)
cl.4M4: 2-9 Hz (6 mm peak to peak), 9 – 200 Hz (1 g) – All axis
cl.4M4: 2-9 Hz (14 mm peak to peak), 9 – 200 Hz (2 g) – All axis
cl.4M4: 10 g (11 ms) in all the directions (EN60721-3-4)
cl.4M6: 20g vertical axis (Spectrum I in agreement with EN 60721-3-4)
EN60068-3-3 (cl.0, level II)
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