BTBH-H Surface Mount Terminal Blocks IDEC BTBH-H Surface Mount Terminal Blocks are designed to easily assemble the required number of terminal blocks without installation tools. These blocks feature a finger-safe structure (IP20 protection), flexible assembly (connecting rod not needed), touchdown screw structure, and different terminal blocks combined and assembled. The BTBH-H blocks come with assembled terminal blocks from 2-poles to 30-poles and are available in 10A, 15A, 30A, and 50A sizes. These terminal blocks come with 2500VAC, 1-minute withstand voltage, 100MΩ minimum insulation resistance, -25°C to 55°C operating temperature range, and 45%RH to 85%RH relative humidity. The BTBH-H surface mount terminal blocks are highly flame-resistant UL-certified resin (UL 94V-0) and compliant with EN, JIS C 8201-7-1, and NECA C 2811.