Square D Multi9 C60 UL489 Miniature Circuit Breaker, D Curve, Tunnel Terminal

Square D Multi9 C60 UL489 Miniature Circuit Breaker, D Curve, Tunnel Terminal

The Square D Multi9 C60 UL489 Miniature Circuit Breaker delivers reliable thermal-magnetic overcurrent protection for AC and DC electrical networks. Rated at 25 A (25 °C) with a D curve trip characteristic, this MCB features tunnel-type terminals accepting 2.5-25 mm² (AWG 14...AWG 4) rigid conductors and is rated for operational voltages up to 125 V DC / 240 V AC / 415 V AC / 440 V AC. Built to UL 489 and EN/IEC 60947-2 standards, it is suitable for isolation and offers IP20 (IP40 in modular enclosure) degree of protection for demanding commercial and industrial installations.

Key Features

• Line Rated Current: 25 A at 25 °C for dependable branch-circuit overcurrent protection.
• D Curve Trip Characteristic: thermal-magnetic trip unit with magnetic tripping limit of 12 x In AC / 17 x In DC.
• Tunnel-Type Terminals: top or bottom connection accepting 2.5-25 mm² (AWG 14...AWG 4) rigid conductors, 2.5-2.5 N.m tightening torque, 18 mm pitch between phases.
• Rated Operational Voltage (Ue): 125 V DC, 240 V AC, 415 V AC, and 440 V AC for AC/DC network flexibility.
• Insulation Ratings: 500 V AC rated insulation voltage (Ui) and 6 kV rated impulse withstand voltage (Uimp) per EN/IEC 60947-2.
• Degree of Protection: IP20 per IEC 60529, IP40 when installed in a modular enclosure.
• Durability: 20,000 mechanical cycles and 10,000 electrical cycles for long service life.
• Lockout Ready: padlockable design with ON/OFF contact position indicator for safe lockout/tagout.

Certifications & Compliance

• UL Listed (UL 489)
• CSA Certified (CSA C22.2 No 5)
• CCC Certified
• Complies with EN/IEC 60947-2 and GB 14048.2
• Suitable for Isolation per EN/IEC 60947-2

Technical Specifications

• Range: Multi9
• Range Of Product: C60
• Curve Code: D
• Network Type: AC
• Overvoltage Category: IV
• Ambient Air Temperature For Storage: -40-80 °C
• Electrical Durability: 10000 cycles
• Mercury Free: Yes
• Contact Position Indicator: Yes
• Warranty: 18 months

Typical Applications

• Commercial and Industrial Branch Circuit Protection
• AC and DC Network Circuit Protection
• Panelboard and Load Center Overcurrent Protection
• UL 489 Listed Installations Requiring Code Compliance
• Isolation Switching per EN/IEC 60947-2

Why Square D?

Square D engineers the Multi9 C60 series to meet UL 489 and EN/IEC 60947-2 standards, combining thermal-magnetic trip technology with 20,000-cycle mechanical durability for dependable performance. With CSA and CCC certification, mercury-free construction, and a padlockable design with contact position indication, this MCB delivers the reliability professionals expect for code-compliant electrical installations.