Specifications
Electrical Ratings
Rated Control Supply Voltage (Uc): 100–250 V AC/DC
Rated Operational Voltage (Main Circuit): up to 1000 V DC
Rated Operational Current DC‑1 (Ie):
• 500 A at 1000 V, ambient 40 °C
• 400 A at 1000 V, ambient 55 °C
• 325 A at 1000 V, ambient 70 °C
Conventional Free‑air Thermal Current (Ith): 500 A
Maximum Breaking Capacity: ~3000 A at 440 V, ~2500 A at 690 V
Rated Insulation Voltage (Ui): 1000 V
Impulse Withstand Voltage (Uimp): 8 kV
Contacts
Main Contacts: 1 Normally Open (NO) per pole
Auxiliary Contacts: 1 NO + 1 NC
Coil / Control
Control voltage range: 100–250 V AC/DC
Coil consumption: holding and pull‑in vary by AC/DC
Mechanical & Mounting
Mechanical Durability: ~5 million operations
Max Mechanical Switching Frequency: ~300 cycles/hour
Connecting Capacity (Main):
• Bars up to 32 mm²
• Rigid Cu up to 240 mm²
• Rigid Al up to 120 mm²
Protection & Environment
Degree of Protection: Coil terminals IP20; main terminals IP00
Operating Ambient Temp: −40 °C to +70 °C
Storage Temp: −40 °C to +70 °C
Altitude: up to ~3000 m
RoHS Compliant: Yes
Dimensions & Weight
Width: ~140 mm
Depth / Length: ~180.5 mm
Height: ~227 mm
Weight: ~5.5–5.8 kg
Summary
Type: 3‑pole DC contactor
Main Use: Switching DC circuits (up to 1000 V) in DC‑1 duty
Control Voltage: 100–250 V AC/DC
Rated DC Current: Up to ~500 A depending on temperature
Auxiliary Contacts: 1 NO + 1 NC
Mechanical Life: ~5 million operations
ABB 1SFL557025R7011 A 3‑pole DC contactor suitable for DC‑1 applications. All three poles are connected in series for a single‑pole DC circuit configuration up to a maximum of 1000 VDC. It can be operated with a wide control voltage range in both AC and DC.