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Protection and safety
E 90 fuse switch disconnectors

Technical features
Type E 90/20 E 90/32
Rated current A 20 32 5
Type of current AC
Fuse [mm] 8 x 31 10 x 38
E 90 Max power dissipation accepted [W] 2.5 3
Rated frequency [Hz] 50-60
Tightening torque [Nm] PZ2 2-2.5*
Protection degree IP20
2
Terminals cross-section [mm ] 25
Cross-section rigid copper conductors 1 wire 1.5-25 mm (16-10 AWG)
2
2 wires - 5 mm (10 AWG)
2
Cross-section stranded copper 1 wire 1.5-16 mm (16-3 AWG)
2
conductors 2 wires - 2-5 mm (14-10 AWG)
2
Operating temperature [°C] -5/+40 (1)
Storage temperature [°C] -25/+70 (2)
Altitude [m] 2000
Voltage range for LED indicator light 24-1000 AC/DC (only s version)
Padlockable (when open) ■ ■
Sealable (when closed) ■ ■
IEC 60947-3
Utilization category AC-22B AC-22B
Markings [V] 400 400
(1) for lower temperature verify fuse technical characteristics, for higher temperature refer to derating
table in Chapter 5 of Electrical installation solutions for buildings - Technical details
(2) for more than 24h max temperature is +55 °C
** PZ2 2.8 Nm in case of rigid copper conductors, 2 wires
Shock and vibration
Vibration withstand on the 3 main axis:
• Sinusoidal vibration testing according to IEC 60068-2-6: 2 to 13 Hz x = 1 mm peak;
13 to 100 Hz y = 0.7 g peak
• Random vibration testing according to IEC 61373: Category 1 Class B

Shock withstand
• Shock testing according to IEC 60068-2-27 : 15 g/11 ms/18 shocks
• Shock testing according to IEC 61373: Category 1 Class B
Materials

Plastic parts Case: Material PA 6 +30 % glass fibre
Self extinguishing class: V2 (UL94)
Temperature resistance: 130 °C
Opening handle Material PA 66 +25 % glass fibre
Self-extinguishing class V0 (UL94)
Temperature resistance: 140 °C
Metal parts Clips Silver plated copper
Clip spring Stainless steel
Terminals Galvanized steel

The E 90 series is environmental friendly and protects the health of people: all used materi-
als are conform to the RoHS and REACH directives and they completely exclude hazardous
substances and halogen.