Technical illustration. Published product/series reference; confirm the exact configuration and supplied appearance. Images are for reference only. The supplied part’s appearance may differ.
1SBH137001R1131 — Block Contactor Relay
contactorPart number: 1SBH137001R1131
ABB 1SBH137001R1131 (NF31E-11) is a four-pole block contactor relay for auxiliary and control circuits. It has three normally open and one normally closed mechanically linked contacts, screw terminals, a 24–60 V AC 50/60 Hz or 20–60 V DC electronic coil, and built-in surge protection.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SBH137001R1131 |
| Category | Electrical & controls |
| Product Net Width | 45 mm |
| Product Net Depth / Length | 77 mm |
| Product Net Height | 86 mm |
| Product Net Weight | 0.27 kg |
| Number of Auxiliary Contacts NO | 3 |
| Number of Auxiliary Contacts NC | 1 |
| Number of Poles | 4P |
| Rated Operational Voltage | Auxiliary Circuit 690 V |
| Rated Frequency (f) | Auxiliary Circuit 50 / 60 Hz |
| Conventional Free-air Thermal Current (I th ) | acc. to IEC 60947-5-1, Θ = 40 °C 16 A |
| Rated Operational Current AC-15 (I e ) | 6 A at 24/127 V; 4 A at 220/240 V; 3 A at 400/440 V; 2 A at 500 V or 690 V |
| Rated Operational Current DC-13 (I e ) | 6 A at 24 V (144 W); 2.8 A at 48 V (134 W); 1 A at 72 V (72 W) |
| Rated Short-time Withstand Current Low Voltage (I cw ) | for 0.1 s 140 A |
| Rated Insulation Voltage (U i ) | acc. to IEC 60947-5-1 690 V |
| Rated Impulse Withstand Voltage (U imp ) | 6 kV |
| Maximum Electrical Switching Frequency | AC-15: 1200 cycles/hour; DC-13: 900 cycles/hour |
| Maximum Mechanical Switching Frequency | 6000 cycles per hour |
| Rated Control Circuit Voltage (U c ) | 24–60 V AC, 50/60 Hz; 20–60 V DC |
| Operate Time | Between Coil De-energization and NC Contact Closing 13 ... 98 ms |
| Mounting on DIN Rail | TH35-7.5 (35 × 7.5 mm) or TH35-15 (35 × 15 mm), IEC 60715 |
| Mounting by Screws (not supplied) | 2 x M4 Screws Placed Diagonally |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Control Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Wire Stripping Length | Auxiliary Circuit 10 mm |
| Degree of Protection | acc. to IEC 60529, IEC 60947-1, EN 60529 Auxiliary Terminals IP20 |
| Tightening Torque | Auxiliary Circuit 1.2 N·m |
| Terminal Type | Screw Terminals |
| Product Name | Block Contactor Relay |
| Published component type | Block Contactor Relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What coil voltage does ABB 1SBH137001R1131 require?
The NF31E-11 control coil is rated for 24–60 V AC at 50/60 Hz or 20–60 V DC. Check the control supply and the complete part number before ordering.
How many contacts does the NF31E-11 have?
This four-pole contactor relay has three normally open and one normally closed auxiliary contacts. The contacts are mechanically linked.
What load current can the NF31E-11 switch?
The rating depends on voltage and utilization category: AC-15 is 2 A at 500 V, while DC-13 is 6 A at 24 V. The 16 A free-air thermal current is not a universal switching rating.
How is the NF31E-11 mounted and connected?
It supports TH35-7.5 and TH35-15 DIN rails or diagonal mounting with two M4 screws, which are not supplied. Connections use screw terminals.
Does the NF31E-11 include coil surge protection?
Yes. The relay has built-in surge protection for its electronic coil interface.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.