The figure shows a 10-position version of the product
Official DistributorSKU
MPN
1779644
Weight
0.007 kg
Series FRONT-MSTB
FRONT-MSTB 2,5/ 2-STF - PCB connector
PCB connector, nominal cross section: 2.5 mm2, color: green, nominal current: 12 A, rated voltage (III/2): 320 V, contact surface: Tin, contact connection type: Socket, number of potentials: 2, number of rows: 1, number of positions: 2, number of connections: 2, product range: FRONT-MSTB 2,5/..-STF, pitch: 5 mm, connection method: Front screw connection, screw head form: L Slotted, conductor/PCB connection direction: 0 °, locking clip: - Locking clip, plug-in system: COMBICON MSTB 2,5, locking: Screw locking mechanism, mounting: Screw flange, type of packaging: packed in cardboard
- Well-known connection principle allows worldwide use
- Optimized for tight installation situations: operation and conductor connection from one direction
- Screwable flange for superior mechanical stability
- Low temperature rise, thanks to maximum contact force
- Allows connection of two conductors
Technical Specifications
Product properties
| Product family | FRONT-MSTB 2,5/..-STF |
| Product line | COMBICON Connectors M |
| Type | Standard |
| Number of Positions | 2 |
| Pitch | 5 mm |
| Number of Connections | 2 |
| Number of rows | 1 |
| Number of potentials | 2 |
| Mounting flange | Screw flange |
Electrical properties
| Nominal current IN | 12 A |
| Nominal voltage UN | 320 V |
| Degree of pollution | 3 |
| Contact resistance | 1.5 mΩ |
| Rated voltage (III/3) | 250 V |
| Rated surge voltage (III/3) | 4 kV |
| Rated voltage (III/2) | 320 V |
| Rated surge voltage (III/2) | 4 kV |
| Rated voltage (II/2) | 630 V |
| Rated surge voltage (II/2) | 4 kV |
Connection technology
| Type | Standard |
| Connector system | COMBICON MSTB 2,5 |
| Nominal cross section | 2.5 mm² |
| Contact connection type | Socket |
Interlock
| Locking Type | Screw locking mechanism |
| Mounting flange | Screw flange |
| Tightening torque | 0.3 Nm |
Conductor connection
| Connection Method | Front screw connection |
| Conductor/PCB connection direction | 0 ° |
| Conductor cross section rigid | 0.34 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 2.5 mm² |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.25 mm² ... 2.5 mm² |
| 2 conductors with same cross section, solid | 0.2 mm² ... 1.5 mm² |
| 2 conductors with same cross section, flexible | 0.2 mm² ... 1.5 mm² |
| 2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 0.25 mm² ... 1 mm² |
| 2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve | 0.5 mm² ... 1 mm² |
| Cylindrical gauge a x b / diameter | 2.8 mm x 2.0 mm / 2.4 mm |
| Stripping length | 10 mm |
| Tightening torque | 0.5 Nm ... 0.6 Nm |
Specifications for ferrules without insulating collar
| recommended crimping tool | 1212034 CRIMPFOX 6 |
Material data - contact
| Note | WEEE/RoHS-compliant, free of whiskers according to IEC 60068-2-82/JEDEC JESD 201 |
| Contact Material | Cu alloy |
| Surface characteristics | hot-dip tin-plated |
| Metal surface terminal point (top layer) | Tin (4 - 8 µm Sn) |
| Metal surface contact area (top layer) | Tin (4 - 8 µm Sn) |
Material data - housing
| Color (Housing) | green (6021) |
| Insulating material | PA |
| Insulating material group | I |
| CTI according to IEC 60112 | 600 |
| Flammability rating according to UL 94 | V0 |
| Glow wire flammability index GWFI according to EN 60695-2-12 | 850 |
| Glow wire ignition temperature GWIT according to EN 60695-2-13 | 775 |
| Temperature for the ball pressure test according to EN 60695-10-2 | 125 °C |
Dimensions
| Pitch | 5 mm |
| Width [w] | 19.8 mm |
| Height [h] | 15 mm |
| Length [l] | 27.2 mm |
Mounting
| Drive form screw head | Slotted (L) |
Flange
| Tightening torque | 0.3 Nm |
Notes
| Notes on operation | In accordance with IEC 61984, COMBICON connectors have no switching power (COC). During designated use, they must not be plugged in or disconnected when carrying voltage or under load. |
Test for conductor damage and slackening
| Specification | IEC 60999-1:1999-11 |
| Result | Test passed |
Pull-out test
| Specification | IEC 60999-1:1999-11 |
| Conductor cross section/conductor type/tractive force setpoint/actual value | 0.2 mm² / solid / > 10 N |
| Conductor cross section/conductor type/tractive force setpoint/actual value | 0.34 mm² / flexible / > 15 N |
| Conductor cross section/conductor type/tractive force setpoint/actual value | 2.5 mm² / solid / > 50 N |
| Conductor cross section/conductor type/tractive force setpoint/actual value | 2.5 mm² / flexible / > 50 N |
Insertion and withdrawal forces
| Result | Test passed |
| No. of cycles | 25 |
| Insertion strength per pos. approx. | 8 N |
| Withdraw strength per pos. approx. | 6 N |
Torque test
| Specification | IEC 60999-1:1999-11 |
Resistance of inscriptions
| Specification | IEC 60068-2-70:1995-12 |
| Result | Test passed |
Polarization and coding
| Specification | IEC 60512-13-5:2006-02 |
| Result | Test passed |
Visual inspection
| Specification | IEC 60512-1-1:2002-02 |
| Result | Test passed |
Dimension check
| Specification | IEC 60512-1-2:2002-02 |
| Result | Test passed |
Vibration test
| Specification | IEC 60068-2-6:2007-12 |
| Frequency | 10 - 150 - 10 Hz |
| Sweep speed | 1 octave/min |
| Amplitude | 0.35 mm (10 Hz ... 60.1 Hz) |
| Acceleration | 5g (60.1 Hz ... 150 Hz) |
| Test duration per axis | 2.5 h |
Durability test
| Specification | IEC 60512-9-1:2010-03 |
| Impulse withstand voltage at sea level | 4.8 kV |
| Contact resistance R1 | 1.5 mΩ |
| Contact resistance R2 | 1.6 mΩ |
| Insertion/withdrawal cycles | 25 |
Climatic test
| Specification | ISO 6988:1985-02 |
| Corrosive stress | 0.2 dm3 SO2 on 300 dm3/40 °C/1 cycle |
| Thermal stress | 100 °C/168 h |
| Power-frequency withstand voltage | 2.21 kV |
Shocks
| Specification | IEC 60068-2-27:2008-02 |
| Pulse shape | Semi-sinusoidal |
| Acceleration | 30g |
| Shock duration | 18 ms |
| Test directions | X-, Y- and Z-axis (pos. and neg.) |
Ambient conditions
| Ambient Temperature (Operation) | -40 °C ... 100 °C (dependent on the derating curve) |
| Ambient temperature (storage/transport) | -40 °C ... 70 °C |
| Relative humidity (storage/transport) | 30 % ... 70 % |
| Ambient temperature (assembly) | -5 °C ... 100 °C |
Thermal test | Test group C
| Specification | IEC 60512-5-1:2002-02 |
| Tested number of positions | 24 |
Insulation resistance
| Specification | IEC 60512-3-1:2002-02 |
| Insulation resistance, neighboring positions | > 5 MΩ |
Air clearances and creepage distances |
| Specification | IEC 60664-1:2007-04 |
| Insulating material group | I |
| Comparative tracking index (IEC 60112) | CTI 600 |
| Rated insulation voltage (III/3) | 250 V |
| Rated surge voltage (III/3) | 4 kV |
| minimum clearance value - non-homogenous field (III/3) | 3 mm |
| minimum creepage distance (III/3) | 3.2 mm |
| Rated insulation voltage (III/2) | 320 V |
| Rated surge voltage (III/2) | 4 kV |
| minimum clearance value - non-homogenous field (III/2) | 3 mm |
| minimum creepage distance (III/2) | 3 mm |
| Rated insulation voltage (II/2) | 630 V |
| Rated surge voltage (II/2) | 4 kV |
| minimum clearance value - non-homogenous field (II/2) | 3 mm |
| minimum creepage distance (II/2) | 3.2 mm |
Packaging specifications
| Type of packaging | packed in cardboard |
Accessories
1763058 - Removal aid, for FRONT-MSTB, facilitates extraction of several plugs mounted behind each other
1205053 - Actuation tool, for ST terminal blocks, insulated, also suitable for use as a bladed screwdriver, size: 0.6 x 3.5 x 100 mm, 2-component grip, with non-slip grip
1734634 - Coding profile, is inserted into the slot on the plug or inverted header, red insulating material
1051993 - Marker pen, for manual labeling of unprinted Zack strips, smear-proof and waterproof, line thickness 0.5 mm
Why Proax for Phoenix Contact FRONT-MSTB 2,5/ 2-STF?
Proax is an authorized distributor of Phoenix Contact FRONT-MSTB 2,5/ 2-STF and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
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Additional Information
| Alternate Names | FRONTMSTB252STF |
| Pack Size | 50 |
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