SCHRACK MM216378

Salzer MM216378 Auxiliary Contact Block

Description

The Salzer MM216378 is a high-quality auxiliary contact block featuring one normally closed (NC) contact. Designed for reliability in industrial control circuits, it complies with IEC/EN 60947 standards. Its modular form factor ensures easy installation on compatible pushbuttons, switches, and contactors, making it a versatile choice for new panels and maintenance applications.

Specifications

• Manufacturer: Salzer
• Type Number: MM216378
• Contact Configuration: 1 NC (Normally Closed)
• Rated Insulation Voltage (Ui): 500V
• Rated Impulse Withstand Voltage (Uimp): 6kV
• Utilization Category (AC-15): 6A/230V, 4A/400V, 2A/500V
• Utilization Category (DC-13): 3A/24V, 0.6A/110V, 0.3A/220V
• Standard: IEC/EN 60947

Label Info

• Brand: Salzer
• Model: MM216378

Application

Ideal for use in control panels, machinery automation, and electrical distribution systems to provide status feedback or perform interlocking logic functions.

Country of Origin

India

CO2 Impact

By purchasing this reused component, you help avoid 0.6 kg of CO2 emissions. This is comparable to the energy required to charge a modern smartphone 72 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question? What devices is the MM216378 compatible with?

This is a standard modular contact block designed to clip onto Salzer’s range of 22.5mm pushbuttons and selector switches, but it may also be compatible with other devices that use this common mounting format.

Question? What is the difference between AC-15 and DC-13 utilization categories?

AC-15 refers to the contact’s capacity for switching AC electromagnetic loads (like contactor coils), while DC-13 refers to its capacity for switching DC electromagnets. The current ratings differ significantly due to the different electrical arcs produced when breaking AC versus DC circuits.

Question? Is this a safety-rated contact block?

No, this is a standard auxiliary contact. For safety applications requiring forced-opening contacts (mirror contacts), you should use a specifically designated safety contact block that complies with standards like IEC 60947-5-1 Annex L.

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Last Update: March 13, 2026