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1SBH137001R1331 — Block Contactor Relay
contactorPart number: 1SBH137001R1331
ABB 1SBH137001R1331, type NF31E-13, is a four-pole block contactor relay for switching auxiliary and control circuits. It has three normally open and one normally closed mechanically linked contacts, screw terminals, a 100–250 V AC 50/60 Hz or DC control coil, and built-in surge protection. Confirm control voltage, contact ratings and mounting requirements for the intended circuit.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SBH137001R1331 |
| 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 ) | (24 V) 6 A / 144 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 per hour |
| Maximum Mechanical Switching Frequency | 6000 cycles per hour |
| Rated Control Circuit Voltage (U c ) | 100–250 V AC, 50/60 Hz; 100–250 V DC |
| Operate Time | Between Coil De-energization and NC Contact Closing 13 ... 98 ms |
| Mounting on DIN Rail | TH35-15 or TH35-7.5, according 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 | IP20 at auxiliary and coil terminals |
| 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 |
| Operating Ambient Temperature | −40 to +70 °C |
| Surge Protection | Built-in |
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 1SBH137001R1331 require?
The NF31E-13 control coil is rated for 100–250 V AC at 50 or 60 Hz, or 100–250 V DC. This is the control supply range, not the switched contact current rating. Check the existing device and control supply before selecting a replacement.
How many normally open and normally closed contacts does the NF31E-13 have?
It has four auxiliary poles: three normally open (NO) and one normally closed (NC). The contacts are mechanically linked. Confirm the required contact arrangement before replacing an existing relay.
What load can the NF31E-13 relay switch?
The rating depends on voltage and utilization category: AC-15 is 4 A at 220–240 V and 3 A at 400–440 V; DC-13 is 6 A at 24 V. The 16 A free-air thermal current at 40 °C is not a universal switching rating. Check the actual load and its applicable rating before selection.
How is the ABB NF31E-13 mounted and connected?
The relay has screw terminals and can be mounted on TH35-15 or TH35-7.5 DIN rail, or with two diagonally placed M4 screws. Its body dimensions are 45 mm wide, 77 mm deep and 86 mm high; check available panel space and the existing mounting arrangement.
Does the NF31E-13 require a separate coil surge suppressor?
The NF31E-13 has built-in surge protection, so an additional coil suppressor is not normally required. Verify the complete control circuit and any equipment-specific requirements before making a substitution.
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Research information may be outdated. Confirm fitment and specifications with our team before ordering.