NFZB44ERT-21
Product ID:87384
Updated: 2026/4/3
Key Features
- 1Reduce width by 15% with compact side-by-side mounting. 2、Comply with IEC 60947-4-1, IEC 60947-5-1, and EN 50155 standards. 3、Withstand shocks and vibrations per IEC 61373 Cat. 1, Class B. 4、Save 68% on coil energy consumption during operation. 5、Handle large DC voltage fluctuations and accept AC 50/60 Hz supplies.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product Net Width | 45 mm | Product Net Depth / Length | 86 mm |
| Product Net Height | 86 mm | Product Net Weight | 0.37 kg |
| Number of Auxiliary Contacts NO | 4 | Number of Auxiliary Contacts NC | 4 |
| Standards | IEC/EN 60947-1, IEC/EN 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1, IEC 60077-1 (applicable parts), IEC 60077-2 (applicable parts), EN 50155 (applicable parts), TR CU 001/2011, IEC 61373, For compliance confirmation on applicable parts based on your application and combination, please consult your ABB sales representatives. | Rated Operational Voltage | Auxiliary Circuit 690 V |
| Rated Frequency (f) | Auxiliary Circuit 50 / 60 Hz Control Circuit 50 / 60 Hz Main Circuit 50 / 60 Hz | Conventional Free-air Thermal Current (Ith) | acc. to IEC 60947-5-1, Π= 40 °C 16 A |
| Rated Operational Current AC-15 (Ie) | (500 V) 2 A (690 V) 2 A (24 / 127 V) 6 A (220 / 240 V) 4 A (400 / 440 V) 3 A | Rated Short-time Withstand Current Low Voltage (Icw) | for 0.1 s 140 A for 1 s 100 A |
| Maximum Electrical Switching Frequency | (AC-15) 1200 cycles per hour (DC-13) 900 cycles per hour | Rated Operational Current DC-13 (Ie) | (24 V) 6 A / 144 W (48 V) 2.8 A / 134 W (72 V) 1 A / 72 W (110 V) 0.55 A / 60 W (125 V) 0.55 A / 69 W (220 V) 0.27 A / 60 W (250 V) 0.27 A / 68 W (400 V) 0.15 A / 60 W (500 V) 0.13 A / 65 W (600 V) 0.1 A / 60 W |
| Rated Insulation Voltage (Ui) | acc. to IEC 60947-5-1 690 V acc. to UL/CSA 600 V | Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Maximum Mechanical Switching Frequency | 6000 cycles per hour | Rated Control Circuit Voltage (Uc) | 50 Hz 24 ... 60 V 60 Hz 24 ... 60 V DC Operation 20 ... 60 V |
| Operate Time | Between Coil De-energization and NC Contact Closing 13 ... 98 ms Between Coil De-energization and NO Contact Opening 11 ... 95 ms Between Coil Energization and NC Contact Opening 38 ... 90 ms Between Coil Energization and NO Contact Closing 40 ... 95 ms | Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
| Mounting by Screws (not supplied) | 2 x M4 screws placed diagonally | Degree of Protection | acc. to IEC 60529, IEC 60947-1, EN 60529 Auxiliary Terminals IP20 acc. to IEC 60529, IEC 60947-1, EN 60529 Coil Terminals IP20 |
| Terminal Type | Ring-Tongue Terminals | Tightening Torque UL/CSA | Auxiliary Circuit 11 in·lb Control Circuit 11 in·lb |
| Ambient Air Temperature | Close to Contactor for Storage -60 ... +80 °C Near Contactor for Operation in Free Air -40 ... 70 °C | Climatic Withstand | Category B according to IEC 60947-1 Annex Q |
| Maximum Operating Altitude Permissible | Without Derating 3000 m | Object Classification Code | K |
| ETIM 7 | EC000196 - Contactor relay | ETIM 8 | EC000196 - Contactor relay |
| ETIM 9 | EC000196 - Contactor relay | eClass | V11.0 : 27371001 |
| UNSPSC | 39121529 | IDEA Granular Category Code (IGCC) | 4763 >> Power contactor, DC switching |
| Manufacturer ID | 1SBH136060R2144 |
Specifications may be subject to change without notice