Circuit breaker Eti-Polam ETIMAT10 3P C 40A 10kA AC (MPN 002135720)

The Eti-Polam ETIMAT10 3P C 40A 10kA AC is a three-pole miniature circuit breaker designed for overcurrent protection in residential and light commercial electrical distribution systems. With a C-type tripping characteristic and a rated current of 40 A, it balances sensitivity to moderate inrush currents while providing timely disconnection for overloads and short circuits. The device is suitable for standard DIN-rail installation and is intended to protect wiring, appliances and distribution circuits from damaging overcurrents.

Advantages

This circuit breaker offers coordinated protection through a C-type characteristic that accommodates moderate startup currents from motors and lighting while responding quickly to fault conditions. The three-pole design enables simultaneous disconnection of all phases, improving safety in three-phase circuits. Its compact, DIN-rail compatible housing simplifies mounting and integration into standard distribution boards used in homes and small commercial premises.

Suitable for

• Three-phase lighting and power circuits in residential buildings
• Small commercial or workshop distribution boards
• Protection of circuits supplying motors, HVAC units and general-purpose loads with moderate inrush
• Retrofits and new installations using DIN-rail enclosures

When it may not be suitable

The ETIMAT10 3P C 40A may not be suitable for circuits requiring B- or D-type tripping characteristics where either higher sensitivity or higher inrush tolerance is required. It is not intended for use as the only protective device in installations that need selective coordination with upstream or downstream protective devices without verification of coordination curves. For industrial environments with very high fault levels, a breaker with a higher breaking capacity may be required.

Key specifications

• Poles: 3-pole configuration for three-phase circuits
• Tripping characteristic: C-type (moderate inrush tolerance)
• Rated current: 40 A
• Breaking capacity: 10 kA (AC)
• Mounting: DIN-rail compatible housing for standard distribution boards

How to use

Install the circuit breaker on a standard DIN rail inside the distribution board following local electrical codes and safety regulations. Ensure proper tightening of line and load terminals and verify correct phase sequence for three-phase installations. Use the breaker as the primary overcurrent protective device for the intended circuit and test operation after installation by performing insulation and continuity checks, then energise the circuit and observe for normal operation. For system modifications or fault finding, disconnect power before handling the device.

What to consider before purchase

• Verify that a C-type tripping characteristic is appropriate for the connected loads and their inrush currents
• Confirm the 40 A rating matches conductor sizing and upstream/downstream coordination requirements
• Check that a 10 kA breaking capacity is sufficient for the prospective short-circuit levels at the installation site
• Ensure compatibility with standard DIN-rail distribution boards and available panel space

Usage recommendations

Use the Eti-Polam ETIMAT10 3P C 40A 10kA AC as part of a coordinated protection scheme: verify selectivity with other protective devices, match conductor cross-sections to the 40 A rating, and confirm site fault levels against the 10 kA breaking capacity. Regularly inspect the distribution board and test protective devices according to local regulations to maintain reliable overcurrent protection.