Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SBH137001R1231 — Block Contactor Relay
contactorPart number: 1SBH137001R1231
ABB 1SBH137001R1231, type NF31E-12, is a four-pole block contactor relay for switching auxiliary and control circuits. It has three normally open and one normally closed contacts, a 48–130 V AC/DC electronic control circuit, screw terminals and built-in surge suppression.
Looking for ABB 1SBH137001R1231? This catalogue reference is listed under contactor. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SBH137001R1231 |
| 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 AC; 4 A at 220–240 V AC; 3 A at 400–440 V AC; 2 A at 500 V AC; 2 A at 690 V AC |
| Rated Operational Current DC-13 (I e ) | 6 A at 24 V DC; 2.8 A at 48 V DC; 1 A at 72 V DC; 0.55 A at 110 V DC; 0.55 A at 125 V DC; 0.27 A at 220 V DC; 0.27 A at 250 V DC; 0.15 A at 400 V DC; 0.13 A at 500 V DC; 0.1 A at 600 V DC |
| 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 per hour |
| Maximum Mechanical Switching Frequency | 6000 cycles per hour |
| Rated Control Circuit Voltage (U c ) | 48–130 V AC, 50/60 Hz; 48–130 V DC |
| Operate Time | Between Coil De-energization and NC Contact Closing 13 ... 98 ms |
| Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to 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 |
| Ambient Air Temperature | Operation in free air: -40 to +70 °C |
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 control voltage does ABB NF31E-12 accept?
The 1SBH137001R1231 has a rated control voltage of 48–130 V AC at 50/60 Hz or 48–130 V DC. Check the available control supply and the complete part number before ordering.
How many contacts does the NF31E-12 have?
It is a four-pole contactor relay with three normally open and one normally closed auxiliary contacts. Its auxiliary contacts are mechanically linked.
What current can this contactor relay switch?
The contact rating depends on voltage and utilization category. For AC-15, it is rated 6 A at 24–127 V AC and 4 A at 220–240 V AC; for DC-13, it is rated 6 A at 24 V DC and 2.8 A at 48 V DC. Check the rating for the actual load.
How is the ABB NF31E-12 mounted and connected?
The relay can be mounted on a DIN rail or panel and uses screw terminals. Its listed dimensions are 45 mm wide, 86 mm high and 77 mm deep. Check available panel clearance before ordering.
Does the NF31E-12 need an external coil surge suppressor?
The relay has built-in surge suppression, so an additional coil surge suppressor is not normally required. Check the control circuit requirements for the installation.
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Research information may be outdated. Confirm fitment and specifications with our team before ordering.