Siemens 3RU5156-3LB2 Thermal Overload Relay
Shop the Siemens 3RU5156-3LB2 SIRIUS Thermal Overload Relay for reliable industrial motor protection. Features a 135-160A adjustable current range, Class 10 trip class, 1NO+1NC auxiliary contacts, and flexible direct/single mounting options. Ideal for robust electrical control panels.
Siemens 3RU5156-3LB2 Thermal Overload Relay
The Siemens 3RU5156-3LB2 is a high-performance SIRIUS series thermal overload relay engineered to provide dependable motor protection against overload and phase failure conditions. Featuring an adjustable current setting range of 135 to 160 A and a CLASS 10 tripping class, this relay guarantees optimal operational safety for heavy-duty industrial applications. It is equipped with manual STOP and RESET functions, a built-in TEST switch, and integrated auxiliary contacts (1 NC + 1 NO) for seamless control circuit signaling. Designed for maximum installation flexibility, it supports both standalone single mounting and direct mounting onto contactors via robust bar-type main terminals. Supplied with M8x25 connecting parts and globally certified (CE, CCC, UKCA), this Siemens relay ensures long-lasting durability and compliance with strict electrical standards.
Technical Specifications:
- Brand: Siemens
- Model: 3RU5156-3LB2
- Product Line: SIRIUS
- Current Setting Range: 135 – 160 A
- Tripping Class: CLASS 10
- Auxiliary Contacts: 1 NC (95-96) + 1 NO (97-98)
- Control Features: STOP and RESET function, TEST switch
- Mounting Options: Single mounting or direct mounting on contactor
- Main Terminals: 1/L1, 3/L2, 5/L3 and 2/T1, 4/T2, 6/T3 (Bar-type connections)
- Included Accessories: M8×25 connecting parts
- Certifications: CE, CCC, UKCA
| Brand | Siemens |
|---|---|
| Model | 3RU5156-3LB2 |
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