Siemens SION User Manual

Installation
62 9229 0025 176 0E
2021-11-15
When installing the 2000 A contact arm, make sure that the end of the contact arm
on the interrupter side does not tilt with the nut and that the front side is fully on the
pole contact plate.
• Position 2000 A contact arm with the smooth side facing the pole contact plate.
• Push the contact arm onto the threaded rods until full contact with the pole con-
tact plate is established.
Fig. 103 Cleaning and mounting the 2000 A contact
arms
• Contact surfaces, Copper, silver-plated
- roughen x –
-clean, x x
- grease with Vaseline x x
Fig. 104 Completion of the 2000 A contact system
(sectional view)
Fig. 105 Installation of the 2000 A contact system

Siemens SION Specifications

General

Type	Miniature Circuit Breaker (MCB)
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Rated Voltage (Ue)	230V/400V AC
Poles	1P, 2P, 3P, 4P
Standards	IEC 60898
Tripping Characteristics	B, C, D
Mounting	DIN Rail