Eaton 072895 NHI12-PKZ0 Auxiliary Contact 1NO+2NC Side Mount PKZ0

The Eaton NHI12-PKZ0 (catalog number 072895) is a standard auxiliary contact accessory for motor-protective circuit-breakers, providing 1 normally open and 2 normally closed contacts via side mounting and screw connection. Rated at 1 A AC-15 at 440 V / 500 V with a rated impulse withstand voltage of 6000 V AC, it delivers reliable status and control signaling in industrial motor starter assemblies. The unit features interlocked opposing contacts and can be retrofitted on the right side of compatible Eaton motor-protective circuit-breakers.

Technical specifications:

• Model code: NHI12-PKZ0
• Catalog number: 072895
• Manufacturer: Eaton
• EAN: 4015080728955
• Number of contacts: 1 N/O, 2 N/C, 0 change-over
• Mounting method: Side mounting
• Electric connection type: Screw connection
• Terminal capacity (solid / flexible with ferrule): 0.75 - 1.5 mm²
• Rated operational current (Ie) at AC-15, 440 V / 500 V: 1 A
• Rated operational current (Ie) at AC-15, 220 / 230 / 240 V: 3.5 A
• Switching capacity (general use): 1 A, 250 V DC (UL/CSA); 5 A, 600 V AC (UL/CSA)
• Switching capacity (pilot duty): Q300 DC operated, A600 AC operated (UL/CSA)
• Rated impulse withstand voltage (Uimp): 6000 V AC
• Safe isolation: 440 V between auxiliary and main contacts per EN 61140
• Short-circuit protection (without welding): 10 A gG/gL fuse
• Electrical lifespan: 50,000 operations
• Control circuit reliability: less than 1 failure per 100,000,000 operations at 24 V DC
• Ambient operating temperature: -25 °C to 55 °C
• Pollution degree: 3
• Overvoltage category: III
• Dimensions (L x H x W): 68 x 90 x 15 mm
• Weight: 0.038 kg
• Certifications: CE, UL 508, CSA-C22.2 No. 14, IEC/EN 60947-4-1

Features and benefits:

• Interlocked opposing contacts ensure reliable signal integrity across all switching states
• Retrofittable on the right side of existing Eaton motor-protective circuit-breakers without system redesign
• Wide operating temperature range of -25 °C to 55 °C suits demanding industrial environments
• Safe isolation at 440 V per EN 61140 protects low-voltage control circuits from main circuit potentials
• Compact 15 mm width minimizes DIN rail and panel space consumption
• Pilot duty ratings Q300 and A600 support both DC and AC control applications

Applications:

• Status signaling and remote indication on motor-protective circuit-breakers in motor starter assemblies
• PLC digital input circuits requiring pilot duty rated auxiliary contacts
• Industrial control panels with IEC/EN 60947-4-1 compliant switchgear requirements
• Automation panels where side-mounted auxiliary contact blocks are specified
• Retrofits to existing PKZ0 motor-protective circuit-breaker installations

Compliant with IEC/EN 60947-4-1, UL 508, and CSA-C22.2 No. 14. Part of the Eaton Moeller series NHI auxiliary contact accessory range for PKZ0 motor-protective circuit-breakers.

Also known as: Eaton NHI12-PKZ0, Eaton 072895, Eaton catalog 072895, Eaton model NHI12-PKZ0, NHI12 PKZ0 auxiliary contact block, Eaton EAN 4015080728955.